MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg LAPIC code.

[edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg LAPIC code.

Posted by Marvin Häuser 7 years, 5 months ago

X86TimerLib is changed to use UefiCpuPkg LAPIC register definitions
and LocalApicLib to remove duplicated code. An implicite change is
the value returned by InternalX86GetApicBase() as it now returns
the result of GetLocalApicBaseAddress(), which is the full LAPIC
address. This also implicitely fixes the incorrect mask value
used previously, which did not only mask AcpiBase, but also the
first nibble of AcpiBaseHi. This does not apply to 32-bit platforms.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Marvin Haeuser <Marvin.Haeuser@outlook.com>
---
 MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c            | 35 +++++++-------------
 MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf |  4 ++-
 MdePkg/MdePkg.dsc                                            |  3 ++
 3 files changed, 18 insertions(+), 24 deletions(-)

diff --git a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
index 76c66fbce6fb..fa6e6f213029 100644
--- a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
+++ b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
@@ -1,7 +1,7 @@
 /** @file
   Timer Library functions built upon local APIC on IA32/x64.
 
-  Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>
   This program and the accompanying materials
   are licensed and made available under the terms and conditions of the BSD License
   which accompanies this distribution.  The full text of the license may be found at
@@ -13,18 +13,14 @@
 **/
 
 #include <Base.h>
+#include <Register/LocalApic.h>
+#include <Library/LocalApicLib.h>
 #include <Library/TimerLib.h>
 #include <Library/BaseLib.h>
 #include <Library/IoLib.h>
 #include <Library/PcdLib.h>
 #include <Library/DebugLib.h>
 
-#define APIC_SVR        0x0f0
-#define APIC_LVTERR     0x370
-#define APIC_TMICT      0x380
-#define APIC_TMCCT      0x390
-#define APIC_TDCR       0x3e0
-
 //
 // The following array is used in calculating the frequency of local APIC
 // timer. Refer to IA-32 developers' manual for more details.
@@ -54,30 +50,21 @@ InternalX86GetApicBase (
   VOID
   )
 {
-  UINTN                             MsrValue;
   UINTN                             ApicBase;
 
-  MsrValue = (UINTN) AsmReadMsr64 (27);
-  ApicBase = MsrValue & 0xffffff000ULL;
-
   //
-  // Check the APIC Global Enable bit (bit 11) in IA32_APIC_BASE MSR.
-  // This bit will be 1, if local APIC is globally enabled.
+  // Verify local APIC is under XAPIC mode.
   //
-  ASSERT ((MsrValue & BIT11) != 0);
+  ASSERT (GetApicMode () == LOCAL_APIC_MODE_XAPIC);
 
-  //
-  // Check the APIC Extended Mode bit (bit 10) in IA32_APIC_BASE MSR.
-  // This bit will be 0, if local APIC is under XAPIC mode.
-  //
-  ASSERT ((MsrValue & BIT10) == 0);
+  ApicBase = GetLocalApicBaseAddress ();
 
   //
   // Check the APIC Software Enable/Disable bit (bit 8) in Spurious-Interrupt
   // Vector Register.
   // This bit will be 1, if local APIC is software enabled.
   //
-  ASSERT ((MmioRead32 (ApicBase + APIC_SVR) & BIT8) != 0);
+  ASSERT ((MmioRead32 (ApicBase + XAPIC_SPURIOUS_VECTOR_OFFSET) & BIT8) != 0);
 
   return ApicBase;
 }
@@ -98,7 +85,9 @@ InternalX86GetTimerFrequency (
 {
   return
     PcdGet32(PcdFSBClock) /
-    mTimerLibLocalApicDivisor[MmioBitFieldRead32 (ApicBase + APIC_TDCR, 0, 3)];
+    mTimerLibLocalApicDivisor[
+      MmioBitFieldRead32 (ApicBase + XAPIC_TIMER_DIVIDE_CONFIGURATION_OFFSET, 0, 3)
+      ];
 }
 
 /**
@@ -115,7 +104,7 @@ InternalX86GetTimerTick (
   IN      UINTN                     ApicBase
   )
 {
-  return MmioRead32 (ApicBase + APIC_TMCCT);
+  return MmioRead32 (ApicBase + XAPIC_TIMER_CURRENT_COUNT_OFFSET);
 }
 
 /**
@@ -131,7 +120,7 @@ InternalX86GetInitTimerCount (
   IN      UINTN                     ApicBase
   )
 {
-  return MmioRead32 (ApicBase + APIC_TMICT);
+  return MmioRead32 (ApicBase + XAPIC_TIMER_INIT_COUNT_OFFSET);
 }
 
 /**
diff --git a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
index a00ebb0eeb64..286da09db174 100644
--- a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
+++ b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
@@ -13,7 +13,7 @@
 # Note that for IA-32 and x64, this library only supports xAPIC mode. If x2APIC
 # support is desired, the SecPeiDxeTimerLibUefiCpu library can be used.
 #
-# Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2017, Intel Corporation. All rights reserved.<BR>
 #
 #  This program and the accompanying materials
 #  are licensed and made available under the terms and conditions of the BSD License
@@ -48,6 +48,7 @@ [Sources.IPF]
 
 [Packages]
   MdePkg/MdePkg.dec
+  UefiCpuPkg/UefiCpuPkg.dec
 
 
 [LibraryClasses]
@@ -57,6 +58,7 @@ [LibraryClasses.IA32, LibraryClasses.X64]
   PcdLib
   IoLib
   DebugLib
+  LocalApicLib
 
 [LibraryClasses.IPF]
   PalLib
diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc
index 010ce533d7ea..8988d1947566 100644
--- a/MdePkg/MdePkg.dsc
+++ b/MdePkg/MdePkg.dsc
@@ -35,6 +35,9 @@ [PcdsFixedAtBuild]
 [PcdsFixedAtBuild.IPF]
   gEfiMdePkgTokenSpaceGuid.PcdIoBlockBaseAddressForIpf|0x0ffffc000000
 
+[LibraryClasses]
+  LocalApicLib|UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.inf
+
 ###################################################################################################
 #
 # Components Section - list of the modules and components that will be processed by compilation
-- 
2.12.2.windows.2

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Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg LAPIC code.

Posted by Marvin Häuser 7 years, 5 months ago

Dear Michael and Liming,

I submited the patch as the changes need to be done anyway, though I think the library might be better moved to UefiCpuPkg.
Also, is my understanding of the mask value being incorrect right? I was confused by the 'ULL' suffix, which makes it look like it was intended. Is it?

Regards,
Marvin.

> -----Original Message-----
> From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of
> Marvin Häuser
> Sent: Sunday, July 23, 2017 12:12 PM
> To: edk2-devel@lists.01.org
> Cc: michael.d.kinney@intel.com; liming.gao@intel.com
> Subject: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> UefiCpuPkg LAPIC code.
> 
> X86TimerLib is changed to use UefiCpuPkg LAPIC register definitions and
> LocalApicLib to remove duplicated code. An implicite change is the value
> returned by InternalX86GetApicBase() as it now returns the result of
> GetLocalApicBaseAddress(), which is the full LAPIC address. This also
> implicitely fixes the incorrect mask value used previously, which did not only
> mask AcpiBase, but also the first nibble of AcpiBaseHi. This does not apply to
> 32-bit platforms.
> 
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Marvin Haeuser <Marvin.Haeuser@outlook.com>
> ---
>  MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c            | 35 +++++++--
> -----------
>  MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf |  4 ++-
>  MdePkg/MdePkg.dsc                                            |  3 ++
>  3 files changed, 18 insertions(+), 24 deletions(-)
> 
> diff --git a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> index 76c66fbce6fb..fa6e6f213029 100644
> --- a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> +++ b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> @@ -1,7 +1,7 @@
>  /** @file
>    Timer Library functions built upon local APIC on IA32/x64.
> 
> -  Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
> +  Copyright (c) 2006 - 2017, Intel Corporation. All rights
> + reserved.<BR>
>    This program and the accompanying materials
>    are licensed and made available under the terms and conditions of the BSD
> License
>    which accompanies this distribution.  The full text of the license may be
> found at @@ -13,18 +13,14 @@  **/
> 
>  #include <Base.h>
> +#include <Register/LocalApic.h>
> +#include <Library/LocalApicLib.h>
>  #include <Library/TimerLib.h>
>  #include <Library/BaseLib.h>
>  #include <Library/IoLib.h>
>  #include <Library/PcdLib.h>
>  #include <Library/DebugLib.h>
> 
> -#define APIC_SVR        0x0f0
> -#define APIC_LVTERR     0x370
> -#define APIC_TMICT      0x380
> -#define APIC_TMCCT      0x390
> -#define APIC_TDCR       0x3e0
> -
>  //
>  // The following array is used in calculating the frequency of local APIC  //
> timer. Refer to IA-32 developers' manual for more details.
> @@ -54,30 +50,21 @@ InternalX86GetApicBase (
>    VOID
>    )
>  {
> -  UINTN                             MsrValue;
>    UINTN                             ApicBase;
> 
> -  MsrValue = (UINTN) AsmReadMsr64 (27);
> -  ApicBase = MsrValue & 0xffffff000ULL;
> -
>    //
> -  // Check the APIC Global Enable bit (bit 11) in IA32_APIC_BASE MSR.
> -  // This bit will be 1, if local APIC is globally enabled.
> +  // Verify local APIC is under XAPIC mode.
>    //
> -  ASSERT ((MsrValue & BIT11) != 0);
> +  ASSERT (GetApicMode () == LOCAL_APIC_MODE_XAPIC);
> 
> -  //
> -  // Check the APIC Extended Mode bit (bit 10) in IA32_APIC_BASE MSR.
> -  // This bit will be 0, if local APIC is under XAPIC mode.
> -  //
> -  ASSERT ((MsrValue & BIT10) == 0);
> +  ApicBase = GetLocalApicBaseAddress ();
> 
>    //
>    // Check the APIC Software Enable/Disable bit (bit 8) in Spurious-Interrupt
>    // Vector Register.
>    // This bit will be 1, if local APIC is software enabled.
>    //
> -  ASSERT ((MmioRead32 (ApicBase + APIC_SVR) & BIT8) != 0);
> +  ASSERT ((MmioRead32 (ApicBase + XAPIC_SPURIOUS_VECTOR_OFFSET) &
> BIT8)
> + != 0);
> 
>    return ApicBase;
>  }
> @@ -98,7 +85,9 @@ InternalX86GetTimerFrequency (  {
>    return
>      PcdGet32(PcdFSBClock) /
> -    mTimerLibLocalApicDivisor[MmioBitFieldRead32 (ApicBase + APIC_TDCR,
> 0, 3)];
> +    mTimerLibLocalApicDivisor[
> +      MmioBitFieldRead32 (ApicBase +
> XAPIC_TIMER_DIVIDE_CONFIGURATION_OFFSET, 0, 3)
> +      ];
>  }
> 
>  /**
> @@ -115,7 +104,7 @@ InternalX86GetTimerTick (
>    IN      UINTN                     ApicBase
>    )
>  {
> -  return MmioRead32 (ApicBase + APIC_TMCCT);
> +  return MmioRead32 (ApicBase +
> XAPIC_TIMER_CURRENT_COUNT_OFFSET);
>  }
> 
>  /**
> @@ -131,7 +120,7 @@ InternalX86GetInitTimerCount (
>    IN      UINTN                     ApicBase
>    )
>  {
> -  return MmioRead32 (ApicBase + APIC_TMICT);
> +  return MmioRead32 (ApicBase + XAPIC_TIMER_INIT_COUNT_OFFSET);
>  }
> 
>  /**
> diff --git
> a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> index a00ebb0eeb64..286da09db174 100644
> --- a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> +++ b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> @@ -13,7 +13,7 @@
>  # Note that for IA-32 and x64, this library only supports xAPIC mode. If
> x2APIC  # support is desired, the SecPeiDxeTimerLibUefiCpu library can be
> used.
>  #
> -# Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>
> +# Copyright (c) 2007 - 2017, Intel Corporation. All rights
> +reserved.<BR>
>  #
>  #  This program and the accompanying materials  #  are licensed and made
> available under the terms and conditions of the BSD License @@ -48,6 +48,7
> @@ [Sources.IPF]
> 
>  [Packages]
>    MdePkg/MdePkg.dec
> +  UefiCpuPkg/UefiCpuPkg.dec
> 
> 
>  [LibraryClasses]
> @@ -57,6 +58,7 @@ [LibraryClasses.IA32, LibraryClasses.X64]
>    PcdLib
>    IoLib
>    DebugLib
> +  LocalApicLib
> 
>  [LibraryClasses.IPF]
>    PalLib
> diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc index
> 010ce533d7ea..8988d1947566 100644
> --- a/MdePkg/MdePkg.dsc
> +++ b/MdePkg/MdePkg.dsc
> @@ -35,6 +35,9 @@ [PcdsFixedAtBuild]
>  [PcdsFixedAtBuild.IPF]
>    gEfiMdePkgTokenSpaceGuid.PcdIoBlockBaseAddressForIpf|0x0ffffc000000
> 
> +[LibraryClasses]
> +
> +LocalApicLib|UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.i
> +nf
> +
> 
> ##########################################################
> #########################################
>  #
>  # Components Section - list of the modules and components that will be
> processed by compilation
> --
> 2.12.2.windows.2
> 
> _______________________________________________
> edk2-devel mailing list
> edk2-devel@lists.01.org
> https://lists.01.org/mailman/listinfo/edk2-devel
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Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg LAPIC code.

Posted by Kinney, Michael D 7 years, 5 months ago

Hi Marvin,

We should not add a dependency on the UefiCpuPkg to the
MdePkg.  I agree that a better location of the local APIC
based timer lib would be the UefiCpuPkg, and there is 
already one there called SecPeiDxeTimerLibUefiCpu.

The TimeLib in the MdePkg was created before the UefiCpuPkg
was created, which explains the current state of the MdePkg.

The MdePkg version has other limitations noted in the INF 
and recommends the UefiCpuPkg version be used.

Thanks,

Mike

> -----Original Message-----
> From: Marvin Häuser [mailto:Marvin.Haeuser@outlook.com]
> Sent: Sunday, July 23, 2017 3:19 AM
> To: edk2-devel@lists.01.org
> Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming
> <liming.gao@intel.com>
> Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> UefiCpuPkg LAPIC code.
> 
> Dear Michael and Liming,
> 
> I submited the patch as the changes need to be done anyway,
> though I think the library might be better moved to UefiCpuPkg.
> Also, is my understanding of the mask value being incorrect
> right? I was confused by the 'ULL' suffix, which makes it look
> like it was intended. Is it?
> 
> Regards,
> Marvin.
> 
> > -----Original Message-----
> > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On
> Behalf Of
> > Marvin Häuser
> > Sent: Sunday, July 23, 2017 12:12 PM
> > To: edk2-devel@lists.01.org
> > Cc: michael.d.kinney@intel.com; liming.gao@intel.com
> > Subject: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > UefiCpuPkg LAPIC code.
> >
> > X86TimerLib is changed to use UefiCpuPkg LAPIC register
> definitions and
> > LocalApicLib to remove duplicated code. An implicite change is
> the value
> > returned by InternalX86GetApicBase() as it now returns the
> result of
> > GetLocalApicBaseAddress(), which is the full LAPIC address.
> This also
> > implicitely fixes the incorrect mask value used previously,
> which did not only
> > mask AcpiBase, but also the first nibble of AcpiBaseHi. This
> does not apply to
> > 32-bit platforms.
> >
> > Contributed-under: TianoCore Contribution Agreement 1.1
> > Signed-off-by: Marvin Haeuser <Marvin.Haeuser@outlook.com>
> > ---
> >  MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c            |
> 35 +++++++--
> > -----------
> >  MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf |
> 4 ++-
> >  MdePkg/MdePkg.dsc                                            |
> 3 ++
> >  3 files changed, 18 insertions(+), 24 deletions(-)
> >
> > diff --git a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > index 76c66fbce6fb..fa6e6f213029 100644
> > --- a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > +++ b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > @@ -1,7 +1,7 @@
> >  /** @file
> >    Timer Library functions built upon local APIC on IA32/x64.
> >
> > -  Copyright (c) 2006 - 2015, Intel Corporation. All rights
> reserved.<BR>
> > +  Copyright (c) 2006 - 2017, Intel Corporation. All rights
> > + reserved.<BR>
> >    This program and the accompanying materials
> >    are licensed and made available under the terms and
> conditions of the BSD
> > License
> >    which accompanies this distribution.  The full text of the
> license may be
> > found at @@ -13,18 +13,14 @@  **/
> >
> >  #include <Base.h>
> > +#include <Register/LocalApic.h>
> > +#include <Library/LocalApicLib.h>
> >  #include <Library/TimerLib.h>
> >  #include <Library/BaseLib.h>
> >  #include <Library/IoLib.h>
> >  #include <Library/PcdLib.h>
> >  #include <Library/DebugLib.h>
> >
> > -#define APIC_SVR        0x0f0
> > -#define APIC_LVTERR     0x370
> > -#define APIC_TMICT      0x380
> > -#define APIC_TMCCT      0x390
> > -#define APIC_TDCR       0x3e0
> > -
> >  //
> >  // The following array is used in calculating the frequency of
> local APIC  //
> > timer. Refer to IA-32 developers' manual for more details.
> > @@ -54,30 +50,21 @@ InternalX86GetApicBase (
> >    VOID
> >    )
> >  {
> > -  UINTN                             MsrValue;
> >    UINTN                             ApicBase;
> >
> > -  MsrValue = (UINTN) AsmReadMsr64 (27);
> > -  ApicBase = MsrValue & 0xffffff000ULL;
> > -
> >    //
> > -  // Check the APIC Global Enable bit (bit 11) in
> IA32_APIC_BASE MSR.
> > -  // This bit will be 1, if local APIC is globally enabled.
> > +  // Verify local APIC is under XAPIC mode.
> >    //
> > -  ASSERT ((MsrValue & BIT11) != 0);
> > +  ASSERT (GetApicMode () == LOCAL_APIC_MODE_XAPIC);
> >
> > -  //
> > -  // Check the APIC Extended Mode bit (bit 10) in
> IA32_APIC_BASE MSR.
> > -  // This bit will be 0, if local APIC is under XAPIC mode.
> > -  //
> > -  ASSERT ((MsrValue & BIT10) == 0);
> > +  ApicBase = GetLocalApicBaseAddress ();
> >
> >    //
> >    // Check the APIC Software Enable/Disable bit (bit 8) in
> Spurious-Interrupt
> >    // Vector Register.
> >    // This bit will be 1, if local APIC is software enabled.
> >    //
> > -  ASSERT ((MmioRead32 (ApicBase + APIC_SVR) & BIT8) != 0);
> > +  ASSERT ((MmioRead32 (ApicBase +
> XAPIC_SPURIOUS_VECTOR_OFFSET) &
> > BIT8)
> > + != 0);
> >
> >    return ApicBase;
> >  }
> > @@ -98,7 +85,9 @@ InternalX86GetTimerFrequency (  {
> >    return
> >      PcdGet32(PcdFSBClock) /
> > -    mTimerLibLocalApicDivisor[MmioBitFieldRead32 (ApicBase +
> APIC_TDCR,
> > 0, 3)];
> > +    mTimerLibLocalApicDivisor[
> > +      MmioBitFieldRead32 (ApicBase +
> > XAPIC_TIMER_DIVIDE_CONFIGURATION_OFFSET, 0, 3)
> > +      ];
> >  }
> >
> >  /**
> > @@ -115,7 +104,7 @@ InternalX86GetTimerTick (
> >    IN      UINTN                     ApicBase
> >    )
> >  {
> > -  return MmioRead32 (ApicBase + APIC_TMCCT);
> > +  return MmioRead32 (ApicBase +
> > XAPIC_TIMER_CURRENT_COUNT_OFFSET);
> >  }
> >
> >  /**
> > @@ -131,7 +120,7 @@ InternalX86GetInitTimerCount (
> >    IN      UINTN                     ApicBase
> >    )
> >  {
> > -  return MmioRead32 (ApicBase + APIC_TMICT);
> > +  return MmioRead32 (ApicBase +
> XAPIC_TIMER_INIT_COUNT_OFFSET);
> >  }
> >
> >  /**
> > diff --git
> > a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > index a00ebb0eeb64..286da09db174 100644
> > ---
> a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > +++
> b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > @@ -13,7 +13,7 @@
> >  # Note that for IA-32 and x64, this library only supports
> xAPIC mode. If
> > x2APIC  # support is desired, the SecPeiDxeTimerLibUefiCpu
> library can be
> > used.
> >  #
> > -# Copyright (c) 2007 - 2014, Intel Corporation. All rights
> reserved.<BR>
> > +# Copyright (c) 2007 - 2017, Intel Corporation. All rights
> > +reserved.<BR>
> >  #
> >  #  This program and the accompanying materials  #  are
> licensed and made
> > available under the terms and conditions of the BSD License @@
> -48,6 +48,7
> > @@ [Sources.IPF]
> >
> >  [Packages]
> >    MdePkg/MdePkg.dec
> > +  UefiCpuPkg/UefiCpuPkg.dec
> >
> >
> >  [LibraryClasses]
> > @@ -57,6 +58,7 @@ [LibraryClasses.IA32, LibraryClasses.X64]
> >    PcdLib
> >    IoLib
> >    DebugLib
> > +  LocalApicLib
> >
> >  [LibraryClasses.IPF]
> >    PalLib
> > diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc index
> > 010ce533d7ea..8988d1947566 100644
> > --- a/MdePkg/MdePkg.dsc
> > +++ b/MdePkg/MdePkg.dsc
> > @@ -35,6 +35,9 @@ [PcdsFixedAtBuild]
> >  [PcdsFixedAtBuild.IPF]
> >
> gEfiMdePkgTokenSpaceGuid.PcdIoBlockBaseAddressForIpf|0x0ffffc0000
> 00
> >
> > +[LibraryClasses]
> > +
> >
> +LocalApicLib|UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2Ap
> icLib.i
> > +nf
> > +
> >
> > ##########################################################
> > #########################################
> >  #
> >  # Components Section - list of the modules and components that
> will be
> > processed by compilation
> > --
> > 2.12.2.windows.2
> >
> > _______________________________________________
> > edk2-devel mailing list
> > edk2-devel@lists.01.org
> > https://lists.01.org/mailman/listinfo/edk2-devel
_______________________________________________
edk2-devel mailing list
edk2-devel@lists.01.org
https://lists.01.org/mailman/listinfo/edk2-devel

Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg LAPIC code.

Posted by Marvin Häuser 7 years, 5 months ago

Hi Michael,

Sorry, I did not notice that UefiCpuPkg already has a similiar library.
Could you please answer my question regarding the mask value which I considered incorrect nevertheless?
I am getting compile-time errors as the mask promotes the value to UINT64, which is, on 32-bit platforms,
implicitely casted to UINT32 (UINTN), resulting in the appropiate data loss warning.

Thanks for your answer!

Regards,
Marvin. 

> -----Original Message-----
> From: Kinney, Michael D [mailto:michael.d.kinney@intel.com]
> Sent: Monday, July 24, 2017 6:40 PM
> To: Marvin Häuser <Marvin.Haeuser@outlook.com>; edk2-
> devel@lists.01.org; Kinney, Michael D <michael.d.kinney@intel.com>
> Cc: Gao, Liming <liming.gao@intel.com>
> Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg
> LAPIC code.
> 
> Hi Marvin,
> 
> We should not add a dependency on the UefiCpuPkg to the MdePkg.  I agree
> that a better location of the local APIC based timer lib would be the
> UefiCpuPkg, and there is already one there called
> SecPeiDxeTimerLibUefiCpu.
> 
> The TimeLib in the MdePkg was created before the UefiCpuPkg was created,
> which explains the current state of the MdePkg.
> 
> The MdePkg version has other limitations noted in the INF and recommends
> the UefiCpuPkg version be used.
> 
> Thanks,
> 
> Mike
> 
> > -----Original Message-----
> > From: Marvin Häuser [mailto:Marvin.Haeuser@outlook.com]
> > Sent: Sunday, July 23, 2017 3:19 AM
> > To: edk2-devel@lists.01.org
> > Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming
> > <liming.gao@intel.com>
> > Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> UefiCpuPkg
> > LAPIC code.
> >
> > Dear Michael and Liming,
> >
> > I submited the patch as the changes need to be done anyway, though I
> > think the library might be better moved to UefiCpuPkg.
> > Also, is my understanding of the mask value being incorrect right? I
> > was confused by the 'ULL' suffix, which makes it look like it was
> > intended. Is it?
> >
> > Regards,
> > Marvin.
> >
> > > -----Original Message-----
> > > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On
> > Behalf Of
> > > Marvin Häuser
> > > Sent: Sunday, July 23, 2017 12:12 PM
> > > To: edk2-devel@lists.01.org
> > > Cc: michael.d.kinney@intel.com; liming.gao@intel.com
> > > Subject: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > > UefiCpuPkg LAPIC code.
> > >
> > > X86TimerLib is changed to use UefiCpuPkg LAPIC register
> > definitions and
> > > LocalApicLib to remove duplicated code. An implicite change is
> > the value
> > > returned by InternalX86GetApicBase() as it now returns the
> > result of
> > > GetLocalApicBaseAddress(), which is the full LAPIC address.
> > This also
> > > implicitely fixes the incorrect mask value used previously,
> > which did not only
> > > mask AcpiBase, but also the first nibble of AcpiBaseHi. This
> > does not apply to
> > > 32-bit platforms.
> > >
> > > Contributed-under: TianoCore Contribution Agreement 1.1
> > > Signed-off-by: Marvin Haeuser <Marvin.Haeuser@outlook.com>
> > > ---
> > >  MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c            |
> > 35 +++++++--
> > > -----------
> > >  MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf |
> > 4 ++-
> > >  MdePkg/MdePkg.dsc                                            |
> > 3 ++
> > >  3 files changed, 18 insertions(+), 24 deletions(-)
> > >
> > > diff --git a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > index 76c66fbce6fb..fa6e6f213029 100644
> > > --- a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > +++ b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > @@ -1,7 +1,7 @@
> > >  /** @file
> > >    Timer Library functions built upon local APIC on IA32/x64.
> > >
> > > -  Copyright (c) 2006 - 2015, Intel Corporation. All rights
> > reserved.<BR>
> > > +  Copyright (c) 2006 - 2017, Intel Corporation. All rights
> > > + reserved.<BR>
> > >    This program and the accompanying materials
> > >    are licensed and made available under the terms and
> > conditions of the BSD
> > > License
> > >    which accompanies this distribution.  The full text of the
> > license may be
> > > found at @@ -13,18 +13,14 @@  **/
> > >
> > >  #include <Base.h>
> > > +#include <Register/LocalApic.h>
> > > +#include <Library/LocalApicLib.h>
> > >  #include <Library/TimerLib.h>
> > >  #include <Library/BaseLib.h>
> > >  #include <Library/IoLib.h>
> > >  #include <Library/PcdLib.h>
> > >  #include <Library/DebugLib.h>
> > >
> > > -#define APIC_SVR        0x0f0
> > > -#define APIC_LVTERR     0x370
> > > -#define APIC_TMICT      0x380
> > > -#define APIC_TMCCT      0x390
> > > -#define APIC_TDCR       0x3e0
> > > -
> > >  //
> > >  // The following array is used in calculating the frequency of
> > local APIC  //
> > > timer. Refer to IA-32 developers' manual for more details.
> > > @@ -54,30 +50,21 @@ InternalX86GetApicBase (
> > >    VOID
> > >    )
> > >  {
> > > -  UINTN                             MsrValue;
> > >    UINTN                             ApicBase;
> > >
> > > -  MsrValue = (UINTN) AsmReadMsr64 (27);
> > > -  ApicBase = MsrValue & 0xffffff000ULL;
> > > -
> > >    //
> > > -  // Check the APIC Global Enable bit (bit 11) in
> > IA32_APIC_BASE MSR.
> > > -  // This bit will be 1, if local APIC is globally enabled.
> > > +  // Verify local APIC is under XAPIC mode.
> > >    //
> > > -  ASSERT ((MsrValue & BIT11) != 0);
> > > +  ASSERT (GetApicMode () == LOCAL_APIC_MODE_XAPIC);
> > >
> > > -  //
> > > -  // Check the APIC Extended Mode bit (bit 10) in
> > IA32_APIC_BASE MSR.
> > > -  // This bit will be 0, if local APIC is under XAPIC mode.
> > > -  //
> > > -  ASSERT ((MsrValue & BIT10) == 0);
> > > +  ApicBase = GetLocalApicBaseAddress ();
> > >
> > >    //
> > >    // Check the APIC Software Enable/Disable bit (bit 8) in
> > Spurious-Interrupt
> > >    // Vector Register.
> > >    // This bit will be 1, if local APIC is software enabled.
> > >    //
> > > -  ASSERT ((MmioRead32 (ApicBase + APIC_SVR) & BIT8) != 0);
> > > +  ASSERT ((MmioRead32 (ApicBase +
> > XAPIC_SPURIOUS_VECTOR_OFFSET) &
> > > BIT8)
> > > + != 0);
> > >
> > >    return ApicBase;
> > >  }
> > > @@ -98,7 +85,9 @@ InternalX86GetTimerFrequency (  {
> > >    return
> > >      PcdGet32(PcdFSBClock) /
> > > -    mTimerLibLocalApicDivisor[MmioBitFieldRead32 (ApicBase +
> > APIC_TDCR,
> > > 0, 3)];
> > > +    mTimerLibLocalApicDivisor[
> > > +      MmioBitFieldRead32 (ApicBase +
> > > XAPIC_TIMER_DIVIDE_CONFIGURATION_OFFSET, 0, 3)
> > > +      ];
> > >  }
> > >
> > >  /**
> > > @@ -115,7 +104,7 @@ InternalX86GetTimerTick (
> > >    IN      UINTN                     ApicBase
> > >    )
> > >  {
> > > -  return MmioRead32 (ApicBase + APIC_TMCCT);
> > > +  return MmioRead32 (ApicBase +
> > > XAPIC_TIMER_CURRENT_COUNT_OFFSET);
> > >  }
> > >
> > >  /**
> > > @@ -131,7 +120,7 @@ InternalX86GetInitTimerCount (
> > >    IN      UINTN                     ApicBase
> > >    )
> > >  {
> > > -  return MmioRead32 (ApicBase + APIC_TMICT);
> > > +  return MmioRead32 (ApicBase +
> > XAPIC_TIMER_INIT_COUNT_OFFSET);
> > >  }
> > >
> > >  /**
> > > diff --git
> > > a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > index a00ebb0eeb64..286da09db174 100644
> > > ---
> > a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > +++
> > b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > @@ -13,7 +13,7 @@
> > >  # Note that for IA-32 and x64, this library only supports
> > xAPIC mode. If
> > > x2APIC  # support is desired, the SecPeiDxeTimerLibUefiCpu
> > library can be
> > > used.
> > >  #
> > > -# Copyright (c) 2007 - 2014, Intel Corporation. All rights
> > reserved.<BR>
> > > +# Copyright (c) 2007 - 2017, Intel Corporation. All rights
> > > +reserved.<BR>
> > >  #
> > >  #  This program and the accompanying materials  #  are
> > licensed and made
> > > available under the terms and conditions of the BSD License @@
> > -48,6 +48,7
> > > @@ [Sources.IPF]
> > >
> > >  [Packages]
> > >    MdePkg/MdePkg.dec
> > > +  UefiCpuPkg/UefiCpuPkg.dec
> > >
> > >
> > >  [LibraryClasses]
> > > @@ -57,6 +58,7 @@ [LibraryClasses.IA32, LibraryClasses.X64]
> > >    PcdLib
> > >    IoLib
> > >    DebugLib
> > > +  LocalApicLib
> > >
> > >  [LibraryClasses.IPF]
> > >    PalLib
> > > diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc index
> > > 010ce533d7ea..8988d1947566 100644
> > > --- a/MdePkg/MdePkg.dsc
> > > +++ b/MdePkg/MdePkg.dsc
> > > @@ -35,6 +35,9 @@ [PcdsFixedAtBuild]  [PcdsFixedAtBuild.IPF]
> > >
> > gEfiMdePkgTokenSpaceGuid.PcdIoBlockBaseAddressForIpf|0x0ffffc0000
> > 00
> > >
> > > +[LibraryClasses]
> > > +
> > >
> > +LocalApicLib|UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2Ap
> > icLib.i
> > > +nf
> > > +
> > >
> > >
> ##########################################################
> > > #########################################
> > >  #
> > >  # Components Section - list of the modules and components that
> > will be
> > > processed by compilation
> > > --
> > > 2.12.2.windows.2
> > >
> > > _______________________________________________
> > > edk2-devel mailing list
> > > edk2-devel@lists.01.org
> > > https://lists.01.org/mailman/listinfo/edk2-devel
_______________________________________________
edk2-devel mailing list
edk2-devel@lists.01.org
https://lists.01.org/mailman/listinfo/edk2-devel

Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg LAPIC code.

Posted by Fan, Jeff 7 years, 5 months ago

Marvin,

Could the following updating fix your issue?

ApicBase = MsrValue & ~0xfff;

Thanks!
Jeff

-----Original Message-----
From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of Marvin Häuser
Sent: Tuesday, July 25, 2017 12:57 AM
To: edk2-devel@lists.01.org
Cc: Kinney, Michael D
Subject: Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg LAPIC code.

Hi Michael,

Sorry, I did not notice that UefiCpuPkg already has a similiar library.
Could you please answer my question regarding the mask value which I considered incorrect nevertheless?
I am getting compile-time errors as the mask promotes the value to UINT64, which is, on 32-bit platforms, implicitely casted to UINT32 (UINTN), resulting in the appropiate data loss warning.

Thanks for your answer!

Regards,
Marvin. 

> -----Original Message-----
> From: Kinney, Michael D [mailto:michael.d.kinney@intel.com]
> Sent: Monday, July 24, 2017 6:40 PM
> To: Marvin Häuser <Marvin.Haeuser@outlook.com>; edk2- 
> devel@lists.01.org; Kinney, Michael D <michael.d.kinney@intel.com>
> Cc: Gao, Liming <liming.gao@intel.com>
> Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg 
> LAPIC code.
> 
> Hi Marvin,
> 
> We should not add a dependency on the UefiCpuPkg to the MdePkg.  I 
> agree that a better location of the local APIC based timer lib would 
> be the UefiCpuPkg, and there is already one there called 
> SecPeiDxeTimerLibUefiCpu.
> 
> The TimeLib in the MdePkg was created before the UefiCpuPkg was 
> created, which explains the current state of the MdePkg.
> 
> The MdePkg version has other limitations noted in the INF and 
> recommends the UefiCpuPkg version be used.
> 
> Thanks,
> 
> Mike
> 
> > -----Original Message-----
> > From: Marvin Häuser [mailto:Marvin.Haeuser@outlook.com]
> > Sent: Sunday, July 23, 2017 3:19 AM
> > To: edk2-devel@lists.01.org
> > Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming 
> > <liming.gao@intel.com>
> > Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> UefiCpuPkg
> > LAPIC code.
> >
> > Dear Michael and Liming,
> >
> > I submited the patch as the changes need to be done anyway, though I 
> > think the library might be better moved to UefiCpuPkg.
> > Also, is my understanding of the mask value being incorrect right? I 
> > was confused by the 'ULL' suffix, which makes it look like it was 
> > intended. Is it?
> >
> > Regards,
> > Marvin.
> >
> > > -----Original Message-----
> > > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On
> > Behalf Of
> > > Marvin Häuser
> > > Sent: Sunday, July 23, 2017 12:12 PM
> > > To: edk2-devel@lists.01.org
> > > Cc: michael.d.kinney@intel.com; liming.gao@intel.com
> > > Subject: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume 
> > > UefiCpuPkg LAPIC code.
> > >
> > > X86TimerLib is changed to use UefiCpuPkg LAPIC register
> > definitions and
> > > LocalApicLib to remove duplicated code. An implicite change is
> > the value
> > > returned by InternalX86GetApicBase() as it now returns the
> > result of
> > > GetLocalApicBaseAddress(), which is the full LAPIC address.
> > This also
> > > implicitely fixes the incorrect mask value used previously,
> > which did not only
> > > mask AcpiBase, but also the first nibble of AcpiBaseHi. This
> > does not apply to
> > > 32-bit platforms.
> > >
> > > Contributed-under: TianoCore Contribution Agreement 1.1
> > > Signed-off-by: Marvin Haeuser <Marvin.Haeuser@outlook.com>
> > > ---
> > >  MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c            |
> > 35 +++++++--
> > > -----------
> > >  MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf |
> > 4 ++-
> > >  MdePkg/MdePkg.dsc                                            |
> > 3 ++
> > >  3 files changed, 18 insertions(+), 24 deletions(-)
> > >
> > > diff --git a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > index 76c66fbce6fb..fa6e6f213029 100644
> > > --- a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > +++ b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > @@ -1,7 +1,7 @@
> > >  /** @file
> > >    Timer Library functions built upon local APIC on IA32/x64.
> > >
> > > -  Copyright (c) 2006 - 2015, Intel Corporation. All rights
> > reserved.<BR>
> > > +  Copyright (c) 2006 - 2017, Intel Corporation. All rights 
> > > + reserved.<BR>
> > >    This program and the accompanying materials
> > >    are licensed and made available under the terms and
> > conditions of the BSD
> > > License
> > >    which accompanies this distribution.  The full text of the
> > license may be
> > > found at @@ -13,18 +13,14 @@  **/
> > >
> > >  #include <Base.h>
> > > +#include <Register/LocalApic.h>
> > > +#include <Library/LocalApicLib.h>
> > >  #include <Library/TimerLib.h>
> > >  #include <Library/BaseLib.h>
> > >  #include <Library/IoLib.h>
> > >  #include <Library/PcdLib.h>
> > >  #include <Library/DebugLib.h>
> > >
> > > -#define APIC_SVR        0x0f0
> > > -#define APIC_LVTERR     0x370
> > > -#define APIC_TMICT      0x380
> > > -#define APIC_TMCCT      0x390
> > > -#define APIC_TDCR       0x3e0
> > > -
> > >  //
> > >  // The following array is used in calculating the frequency of
> > local APIC  //
> > > timer. Refer to IA-32 developers' manual for more details.
> > > @@ -54,30 +50,21 @@ InternalX86GetApicBase (
> > >    VOID
> > >    )
> > >  {
> > > -  UINTN                             MsrValue;
> > >    UINTN                             ApicBase;
> > >
> > > -  MsrValue = (UINTN) AsmReadMsr64 (27);
> > > -  ApicBase = MsrValue & 0xffffff000ULL;
> > > -
> > >    //
> > > -  // Check the APIC Global Enable bit (bit 11) in
> > IA32_APIC_BASE MSR.
> > > -  // This bit will be 1, if local APIC is globally enabled.
> > > +  // Verify local APIC is under XAPIC mode.
> > >    //
> > > -  ASSERT ((MsrValue & BIT11) != 0);
> > > +  ASSERT (GetApicMode () == LOCAL_APIC_MODE_XAPIC);
> > >
> > > -  //
> > > -  // Check the APIC Extended Mode bit (bit 10) in
> > IA32_APIC_BASE MSR.
> > > -  // This bit will be 0, if local APIC is under XAPIC mode.
> > > -  //
> > > -  ASSERT ((MsrValue & BIT10) == 0);
> > > +  ApicBase = GetLocalApicBaseAddress ();
> > >
> > >    //
> > >    // Check the APIC Software Enable/Disable bit (bit 8) in
> > Spurious-Interrupt
> > >    // Vector Register.
> > >    // This bit will be 1, if local APIC is software enabled.
> > >    //
> > > -  ASSERT ((MmioRead32 (ApicBase + APIC_SVR) & BIT8) != 0);
> > > +  ASSERT ((MmioRead32 (ApicBase +
> > XAPIC_SPURIOUS_VECTOR_OFFSET) &
> > > BIT8)
> > > + != 0);
> > >
> > >    return ApicBase;
> > >  }
> > > @@ -98,7 +85,9 @@ InternalX86GetTimerFrequency (  {
> > >    return
> > >      PcdGet32(PcdFSBClock) /
> > > -    mTimerLibLocalApicDivisor[MmioBitFieldRead32 (ApicBase +
> > APIC_TDCR,
> > > 0, 3)];
> > > +    mTimerLibLocalApicDivisor[
> > > +      MmioBitFieldRead32 (ApicBase +
> > > XAPIC_TIMER_DIVIDE_CONFIGURATION_OFFSET, 0, 3)
> > > +      ];
> > >  }
> > >
> > >  /**
> > > @@ -115,7 +104,7 @@ InternalX86GetTimerTick (
> > >    IN      UINTN                     ApicBase
> > >    )
> > >  {
> > > -  return MmioRead32 (ApicBase + APIC_TMCCT);
> > > +  return MmioRead32 (ApicBase +
> > > XAPIC_TIMER_CURRENT_COUNT_OFFSET);
> > >  }
> > >
> > >  /**
> > > @@ -131,7 +120,7 @@ InternalX86GetInitTimerCount (
> > >    IN      UINTN                     ApicBase
> > >    )
> > >  {
> > > -  return MmioRead32 (ApicBase + APIC_TMICT);
> > > +  return MmioRead32 (ApicBase +
> > XAPIC_TIMER_INIT_COUNT_OFFSET);
> > >  }
> > >
> > >  /**
> > > diff --git
> > > a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > index a00ebb0eeb64..286da09db174 100644
> > > ---
> > a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > +++
> > b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > @@ -13,7 +13,7 @@
> > >  # Note that for IA-32 and x64, this library only supports
> > xAPIC mode. If
> > > x2APIC  # support is desired, the SecPeiDxeTimerLibUefiCpu
> > library can be
> > > used.
> > >  #
> > > -# Copyright (c) 2007 - 2014, Intel Corporation. All rights
> > reserved.<BR>
> > > +# Copyright (c) 2007 - 2017, Intel Corporation. All rights 
> > > +reserved.<BR>
> > >  #
> > >  #  This program and the accompanying materials  #  are
> > licensed and made
> > > available under the terms and conditions of the BSD License @@
> > -48,6 +48,7
> > > @@ [Sources.IPF]
> > >
> > >  [Packages]
> > >    MdePkg/MdePkg.dec
> > > +  UefiCpuPkg/UefiCpuPkg.dec
> > >
> > >
> > >  [LibraryClasses]
> > > @@ -57,6 +58,7 @@ [LibraryClasses.IA32, LibraryClasses.X64]
> > >    PcdLib
> > >    IoLib
> > >    DebugLib
> > > +  LocalApicLib
> > >
> > >  [LibraryClasses.IPF]
> > >    PalLib
> > > diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc index
> > > 010ce533d7ea..8988d1947566 100644
> > > --- a/MdePkg/MdePkg.dsc
> > > +++ b/MdePkg/MdePkg.dsc
> > > @@ -35,6 +35,9 @@ [PcdsFixedAtBuild]  [PcdsFixedAtBuild.IPF]
> > >
> > gEfiMdePkgTokenSpaceGuid.PcdIoBlockBaseAddressForIpf|0x0ffffc0000
> > 00
> > >
> > > +[LibraryClasses]
> > > +
> > >
> > +LocalApicLib|UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2Ap
> > icLib.i
> > > +nf
> > > +
> > >
> > >
> ##########################################################
> > > #########################################
> > >  #
> > >  # Components Section - list of the modules and components that
> > will be
> > > processed by compilation
> > > --
> > > 2.12.2.windows.2
> > >
> > > _______________________________________________
> > > edk2-devel mailing list
> > > edk2-devel@lists.01.org
> > > https://lists.01.org/mailman/listinfo/edk2-devel
_______________________________________________
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https://lists.01.org/mailman/listinfo/edk2-devel
_______________________________________________
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Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg LAPIC code.

Posted by Marvin Häuser 7 years, 5 months ago

Hey Jeff,

That would definitely fix the compilation issue.
Do I see it right that for 32-bit platforms, it's just ApicBase and for 64-bit platforms, it's ApicBase and ApicBaseHi?
If yes, maybe ~(UINTN)0xFFF should be used to play safe?

Thanks,
Marvin.

> -----Original Message-----
> From: Fan, Jeff [mailto:jeff.fan@intel.com]
> Sent: Wednesday, July 26, 2017 4:28 AM
> To: Marvin Häuser <Marvin.Haeuser@outlook.com>; edk2-
> devel@lists.01.org
> Cc: Kinney, Michael D <michael.d.kinney@intel.com>
> Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg
> LAPIC code.
> 
> Marvin,
> 
> Could the following updating fix your issue?
> 
> ApicBase = MsrValue & ~0xfff;
> 
> Thanks!
> Jeff
> 
> -----Original Message-----
> From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of
> Marvin Häuser
> Sent: Tuesday, July 25, 2017 12:57 AM
> To: edk2-devel@lists.01.org
> Cc: Kinney, Michael D
> Subject: Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> UefiCpuPkg LAPIC code.
> 
> Hi Michael,
> 
> Sorry, I did not notice that UefiCpuPkg already has a similiar library.
> Could you please answer my question regarding the mask value which I
> considered incorrect nevertheless?
> I am getting compile-time errors as the mask promotes the value to UINT64,
> which is, on 32-bit platforms, implicitely casted to UINT32 (UINTN), resulting
> in the appropiate data loss warning.
> 
> Thanks for your answer!
> 
> Regards,
> Marvin.
> 
> > -----Original Message-----
> > From: Kinney, Michael D [mailto:michael.d.kinney@intel.com]
> > Sent: Monday, July 24, 2017 6:40 PM
> > To: Marvin Häuser <Marvin.Haeuser@outlook.com>; edk2-
> > devel@lists.01.org; Kinney, Michael D <michael.d.kinney@intel.com>
> > Cc: Gao, Liming <liming.gao@intel.com>
> > Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> UefiCpuPkg
> > LAPIC code.
> >
> > Hi Marvin,
> >
> > We should not add a dependency on the UefiCpuPkg to the MdePkg.  I
> > agree that a better location of the local APIC based timer lib would
> > be the UefiCpuPkg, and there is already one there called
> > SecPeiDxeTimerLibUefiCpu.
> >
> > The TimeLib in the MdePkg was created before the UefiCpuPkg was
> > created, which explains the current state of the MdePkg.
> >
> > The MdePkg version has other limitations noted in the INF and
> > recommends the UefiCpuPkg version be used.
> >
> > Thanks,
> >
> > Mike
> >
> > > -----Original Message-----
> > > From: Marvin Häuser [mailto:Marvin.Haeuser@outlook.com]
> > > Sent: Sunday, July 23, 2017 3:19 AM
> > > To: edk2-devel@lists.01.org
> > > Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming
> > > <liming.gao@intel.com>
> > > Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > UefiCpuPkg
> > > LAPIC code.
> > >
> > > Dear Michael and Liming,
> > >
> > > I submited the patch as the changes need to be done anyway, though I
> > > think the library might be better moved to UefiCpuPkg.
> > > Also, is my understanding of the mask value being incorrect right? I
> > > was confused by the 'ULL' suffix, which makes it look like it was
> > > intended. Is it?
> > >
> > > Regards,
> > > Marvin.
> > >
> > > > -----Original Message-----
> > > > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On
> > > Behalf Of
> > > > Marvin Häuser
> > > > Sent: Sunday, July 23, 2017 12:12 PM
> > > > To: edk2-devel@lists.01.org
> > > > Cc: michael.d.kinney@intel.com; liming.gao@intel.com
> > > > Subject: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > > > UefiCpuPkg LAPIC code.
> > > >
> > > > X86TimerLib is changed to use UefiCpuPkg LAPIC register
> > > definitions and
> > > > LocalApicLib to remove duplicated code. An implicite change is
> > > the value
> > > > returned by InternalX86GetApicBase() as it now returns the
> > > result of
> > > > GetLocalApicBaseAddress(), which is the full LAPIC address.
> > > This also
> > > > implicitely fixes the incorrect mask value used previously,
> > > which did not only
> > > > mask AcpiBase, but also the first nibble of AcpiBaseHi. This
> > > does not apply to
> > > > 32-bit platforms.
> > > >
> > > > Contributed-under: TianoCore Contribution Agreement 1.1
> > > > Signed-off-by: Marvin Haeuser <Marvin.Haeuser@outlook.com>
> > > > ---
> > > >  MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c            |
> > > 35 +++++++--
> > > > -----------
> > > >  MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf |
> > > 4 ++-
> > > >  MdePkg/MdePkg.dsc                                            |
> > > 3 ++
> > > >  3 files changed, 18 insertions(+), 24 deletions(-)
> > > >
> > > > diff --git a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > index 76c66fbce6fb..fa6e6f213029 100644
> > > > --- a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > +++ b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > @@ -1,7 +1,7 @@
> > > >  /** @file
> > > >    Timer Library functions built upon local APIC on IA32/x64.
> > > >
> > > > -  Copyright (c) 2006 - 2015, Intel Corporation. All rights
> > > reserved.<BR>
> > > > +  Copyright (c) 2006 - 2017, Intel Corporation. All rights
> > > > + reserved.<BR>
> > > >    This program and the accompanying materials
> > > >    are licensed and made available under the terms and
> > > conditions of the BSD
> > > > License
> > > >    which accompanies this distribution.  The full text of the
> > > license may be
> > > > found at @@ -13,18 +13,14 @@  **/
> > > >
> > > >  #include <Base.h>
> > > > +#include <Register/LocalApic.h>
> > > > +#include <Library/LocalApicLib.h>
> > > >  #include <Library/TimerLib.h>
> > > >  #include <Library/BaseLib.h>
> > > >  #include <Library/IoLib.h>
> > > >  #include <Library/PcdLib.h>
> > > >  #include <Library/DebugLib.h>
> > > >
> > > > -#define APIC_SVR        0x0f0
> > > > -#define APIC_LVTERR     0x370
> > > > -#define APIC_TMICT      0x380
> > > > -#define APIC_TMCCT      0x390
> > > > -#define APIC_TDCR       0x3e0
> > > > -
> > > >  //
> > > >  // The following array is used in calculating the frequency of
> > > local APIC  //
> > > > timer. Refer to IA-32 developers' manual for more details.
> > > > @@ -54,30 +50,21 @@ InternalX86GetApicBase (
> > > >    VOID
> > > >    )
> > > >  {
> > > > -  UINTN                             MsrValue;
> > > >    UINTN                             ApicBase;
> > > >
> > > > -  MsrValue = (UINTN) AsmReadMsr64 (27);
> > > > -  ApicBase = MsrValue & 0xffffff000ULL;
> > > > -
> > > >    //
> > > > -  // Check the APIC Global Enable bit (bit 11) in
> > > IA32_APIC_BASE MSR.
> > > > -  // This bit will be 1, if local APIC is globally enabled.
> > > > +  // Verify local APIC is under XAPIC mode.
> > > >    //
> > > > -  ASSERT ((MsrValue & BIT11) != 0);
> > > > +  ASSERT (GetApicMode () == LOCAL_APIC_MODE_XAPIC);
> > > >
> > > > -  //
> > > > -  // Check the APIC Extended Mode bit (bit 10) in
> > > IA32_APIC_BASE MSR.
> > > > -  // This bit will be 0, if local APIC is under XAPIC mode.
> > > > -  //
> > > > -  ASSERT ((MsrValue & BIT10) == 0);
> > > > +  ApicBase = GetLocalApicBaseAddress ();
> > > >
> > > >    //
> > > >    // Check the APIC Software Enable/Disable bit (bit 8) in
> > > Spurious-Interrupt
> > > >    // Vector Register.
> > > >    // This bit will be 1, if local APIC is software enabled.
> > > >    //
> > > > -  ASSERT ((MmioRead32 (ApicBase + APIC_SVR) & BIT8) != 0);
> > > > +  ASSERT ((MmioRead32 (ApicBase +
> > > XAPIC_SPURIOUS_VECTOR_OFFSET) &
> > > > BIT8)
> > > > + != 0);
> > > >
> > > >    return ApicBase;
> > > >  }
> > > > @@ -98,7 +85,9 @@ InternalX86GetTimerFrequency (  {
> > > >    return
> > > >      PcdGet32(PcdFSBClock) /
> > > > -    mTimerLibLocalApicDivisor[MmioBitFieldRead32 (ApicBase +
> > > APIC_TDCR,
> > > > 0, 3)];
> > > > +    mTimerLibLocalApicDivisor[
> > > > +      MmioBitFieldRead32 (ApicBase +
> > > > XAPIC_TIMER_DIVIDE_CONFIGURATION_OFFSET, 0, 3)
> > > > +      ];
> > > >  }
> > > >
> > > >  /**
> > > > @@ -115,7 +104,7 @@ InternalX86GetTimerTick (
> > > >    IN      UINTN                     ApicBase
> > > >    )
> > > >  {
> > > > -  return MmioRead32 (ApicBase + APIC_TMCCT);
> > > > +  return MmioRead32 (ApicBase +
> > > > XAPIC_TIMER_CURRENT_COUNT_OFFSET);
> > > >  }
> > > >
> > > >  /**
> > > > @@ -131,7 +120,7 @@ InternalX86GetInitTimerCount (
> > > >    IN      UINTN                     ApicBase
> > > >    )
> > > >  {
> > > > -  return MmioRead32 (ApicBase + APIC_TMICT);
> > > > +  return MmioRead32 (ApicBase +
> > > XAPIC_TIMER_INIT_COUNT_OFFSET);
> > > >  }
> > > >
> > > >  /**
> > > > diff --git
> > > > a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > index a00ebb0eeb64..286da09db174 100644
> > > > ---
> > > a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > +++
> > > b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > @@ -13,7 +13,7 @@
> > > >  # Note that for IA-32 and x64, this library only supports
> > > xAPIC mode. If
> > > > x2APIC  # support is desired, the SecPeiDxeTimerLibUefiCpu
> > > library can be
> > > > used.
> > > >  #
> > > > -# Copyright (c) 2007 - 2014, Intel Corporation. All rights
> > > reserved.<BR>
> > > > +# Copyright (c) 2007 - 2017, Intel Corporation. All rights
> > > > +reserved.<BR>
> > > >  #
> > > >  #  This program and the accompanying materials  #  are
> > > licensed and made
> > > > available under the terms and conditions of the BSD License @@
> > > -48,6 +48,7
> > > > @@ [Sources.IPF]
> > > >
> > > >  [Packages]
> > > >    MdePkg/MdePkg.dec
> > > > +  UefiCpuPkg/UefiCpuPkg.dec
> > > >
> > > >
> > > >  [LibraryClasses]
> > > > @@ -57,6 +58,7 @@ [LibraryClasses.IA32, LibraryClasses.X64]
> > > >    PcdLib
> > > >    IoLib
> > > >    DebugLib
> > > > +  LocalApicLib
> > > >
> > > >  [LibraryClasses.IPF]
> > > >    PalLib
> > > > diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc index
> > > > 010ce533d7ea..8988d1947566 100644
> > > > --- a/MdePkg/MdePkg.dsc
> > > > +++ b/MdePkg/MdePkg.dsc
> > > > @@ -35,6 +35,9 @@ [PcdsFixedAtBuild]  [PcdsFixedAtBuild.IPF]
> > > >
> > > gEfiMdePkgTokenSpaceGuid.PcdIoBlockBaseAddressForIpf|0x0ffffc0000
> > > 00
> > > >
> > > > +[LibraryClasses]
> > > > +
> > > >
> > > +LocalApicLib|UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2Ap
> > > icLib.i
> > > > +nf
> > > > +
> > > >
> > > >
> >
> ##########################################################
> > > > #########################################
> > > >  #
> > > >  # Components Section - list of the modules and components that
> > > will be
> > > > processed by compilation
> > > > --
> > > > 2.12.2.windows.2
> > > >
> > > > _______________________________________________
> > > > edk2-devel mailing list
> > > > edk2-devel@lists.01.org
> > > > https://lists.01.org/mailman/listinfo/edk2-devel
> _______________________________________________
> edk2-devel mailing list
> edk2-devel@lists.01.org
> https://lists.01.org/mailman/listinfo/edk2-devel
_______________________________________________
edk2-devel mailing list
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Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg LAPIC code.

Posted by Gao, Liming 7 years, 5 months ago

Marvin:
  Do you meet with the compiler issue on the old VS tool chain?

Thanks
Liming
> -----Original Message-----
> From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of Marvin H?user
> Sent: Wednesday, July 26, 2017 4:34 PM
> To: edk2-devel@lists.01.org
> Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Fan, Jeff <jeff.fan@intel.com>
> Subject: Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg LAPIC code.
> 
> Hey Jeff,
> 
> That would definitely fix the compilation issue.
> Do I see it right that for 32-bit platforms, it's just ApicBase and for 64-bit platforms, it's ApicBase and ApicBaseHi?
> If yes, maybe ~(UINTN)0xFFF should be used to play safe?
> 
> Thanks,
> Marvin.
> 
> > -----Original Message-----
> > From: Fan, Jeff [mailto:jeff.fan@intel.com]
> > Sent: Wednesday, July 26, 2017 4:28 AM
> > To: Marvin Häuser <Marvin.Haeuser@outlook.com>; edk2-
> > devel@lists.01.org
> > Cc: Kinney, Michael D <michael.d.kinney@intel.com>
> > Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg
> > LAPIC code.
> >
> > Marvin,
> >
> > Could the following updating fix your issue?
> >
> > ApicBase = MsrValue & ~0xfff;
> >
> > Thanks!
> > Jeff
> >
> > -----Original Message-----
> > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of
> > Marvin Häuser
> > Sent: Tuesday, July 25, 2017 12:57 AM
> > To: edk2-devel@lists.01.org
> > Cc: Kinney, Michael D
> > Subject: Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > UefiCpuPkg LAPIC code.
> >
> > Hi Michael,
> >
> > Sorry, I did not notice that UefiCpuPkg already has a similiar library.
> > Could you please answer my question regarding the mask value which I
> > considered incorrect nevertheless?
> > I am getting compile-time errors as the mask promotes the value to UINT64,
> > which is, on 32-bit platforms, implicitely casted to UINT32 (UINTN), resulting
> > in the appropiate data loss warning.
> >
> > Thanks for your answer!
> >
> > Regards,
> > Marvin.
> >
> > > -----Original Message-----
> > > From: Kinney, Michael D [mailto:michael.d.kinney@intel.com]
> > > Sent: Monday, July 24, 2017 6:40 PM
> > > To: Marvin Häuser <Marvin.Haeuser@outlook.com>; edk2-
> > > devel@lists.01.org; Kinney, Michael D <michael.d.kinney@intel.com>
> > > Cc: Gao, Liming <liming.gao@intel.com>
> > > Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > UefiCpuPkg
> > > LAPIC code.
> > >
> > > Hi Marvin,
> > >
> > > We should not add a dependency on the UefiCpuPkg to the MdePkg.  I
> > > agree that a better location of the local APIC based timer lib would
> > > be the UefiCpuPkg, and there is already one there called
> > > SecPeiDxeTimerLibUefiCpu.
> > >
> > > The TimeLib in the MdePkg was created before the UefiCpuPkg was
> > > created, which explains the current state of the MdePkg.
> > >
> > > The MdePkg version has other limitations noted in the INF and
> > > recommends the UefiCpuPkg version be used.
> > >
> > > Thanks,
> > >
> > > Mike
> > >
> > > > -----Original Message-----
> > > > From: Marvin Häuser [mailto:Marvin.Haeuser@outlook.com]
> > > > Sent: Sunday, July 23, 2017 3:19 AM
> > > > To: edk2-devel@lists.01.org
> > > > Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming
> > > > <liming.gao@intel.com>
> > > > Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > > UefiCpuPkg
> > > > LAPIC code.
> > > >
> > > > Dear Michael and Liming,
> > > >
> > > > I submited the patch as the changes need to be done anyway, though I
> > > > think the library might be better moved to UefiCpuPkg.
> > > > Also, is my understanding of the mask value being incorrect right? I
> > > > was confused by the 'ULL' suffix, which makes it look like it was
> > > > intended. Is it?
> > > >
> > > > Regards,
> > > > Marvin.
> > > >
> > > > > -----Original Message-----
> > > > > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On
> > > > Behalf Of
> > > > > Marvin Häuser
> > > > > Sent: Sunday, July 23, 2017 12:12 PM
> > > > > To: edk2-devel@lists.01.org
> > > > > Cc: michael.d.kinney@intel.com; liming.gao@intel.com
> > > > > Subject: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > > > > UefiCpuPkg LAPIC code.
> > > > >
> > > > > X86TimerLib is changed to use UefiCpuPkg LAPIC register
> > > > definitions and
> > > > > LocalApicLib to remove duplicated code. An implicite change is
> > > > the value
> > > > > returned by InternalX86GetApicBase() as it now returns the
> > > > result of
> > > > > GetLocalApicBaseAddress(), which is the full LAPIC address.
> > > > This also
> > > > > implicitely fixes the incorrect mask value used previously,
> > > > which did not only
> > > > > mask AcpiBase, but also the first nibble of AcpiBaseHi. This
> > > > does not apply to
> > > > > 32-bit platforms.
> > > > >
> > > > > Contributed-under: TianoCore Contribution Agreement 1.1
> > > > > Signed-off-by: Marvin Haeuser <Marvin.Haeuser@outlook.com>
> > > > > ---
> > > > >  MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c            |
> > > > 35 +++++++--
> > > > > -----------
> > > > >  MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf |
> > > > 4 ++-
> > > > >  MdePkg/MdePkg.dsc                                            |
> > > > 3 ++
> > > > >  3 files changed, 18 insertions(+), 24 deletions(-)
> > > > >
> > > > > diff --git a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > > b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > > index 76c66fbce6fb..fa6e6f213029 100644
> > > > > --- a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > > +++ b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > > @@ -1,7 +1,7 @@
> > > > >  /** @file
> > > > >    Timer Library functions built upon local APIC on IA32/x64.
> > > > >
> > > > > -  Copyright (c) 2006 - 2015, Intel Corporation. All rights
> > > > reserved.<BR>
> > > > > +  Copyright (c) 2006 - 2017, Intel Corporation. All rights
> > > > > + reserved.<BR>
> > > > >    This program and the accompanying materials
> > > > >    are licensed and made available under the terms and
> > > > conditions of the BSD
> > > > > License
> > > > >    which accompanies this distribution.  The full text of the
> > > > license may be
> > > > > found at @@ -13,18 +13,14 @@  **/
> > > > >
> > > > >  #include <Base.h>
> > > > > +#include <Register/LocalApic.h>
> > > > > +#include <Library/LocalApicLib.h>
> > > > >  #include <Library/TimerLib.h>
> > > > >  #include <Library/BaseLib.h>
> > > > >  #include <Library/IoLib.h>
> > > > >  #include <Library/PcdLib.h>
> > > > >  #include <Library/DebugLib.h>
> > > > >
> > > > > -#define APIC_SVR        0x0f0
> > > > > -#define APIC_LVTERR     0x370
> > > > > -#define APIC_TMICT      0x380
> > > > > -#define APIC_TMCCT      0x390
> > > > > -#define APIC_TDCR       0x3e0
> > > > > -
> > > > >  //
> > > > >  // The following array is used in calculating the frequency of
> > > > local APIC  //
> > > > > timer. Refer to IA-32 developers' manual for more details.
> > > > > @@ -54,30 +50,21 @@ InternalX86GetApicBase (
> > > > >    VOID
> > > > >    )
> > > > >  {
> > > > > -  UINTN                             MsrValue;
> > > > >    UINTN                             ApicBase;
> > > > >
> > > > > -  MsrValue = (UINTN) AsmReadMsr64 (27);
> > > > > -  ApicBase = MsrValue & 0xffffff000ULL;
> > > > > -
> > > > >    //
> > > > > -  // Check the APIC Global Enable bit (bit 11) in
> > > > IA32_APIC_BASE MSR.
> > > > > -  // This bit will be 1, if local APIC is globally enabled.
> > > > > +  // Verify local APIC is under XAPIC mode.
> > > > >    //
> > > > > -  ASSERT ((MsrValue & BIT11) != 0);
> > > > > +  ASSERT (GetApicMode () == LOCAL_APIC_MODE_XAPIC);
> > > > >
> > > > > -  //
> > > > > -  // Check the APIC Extended Mode bit (bit 10) in
> > > > IA32_APIC_BASE MSR.
> > > > > -  // This bit will be 0, if local APIC is under XAPIC mode.
> > > > > -  //
> > > > > -  ASSERT ((MsrValue & BIT10) == 0);
> > > > > +  ApicBase = GetLocalApicBaseAddress ();
> > > > >
> > > > >    //
> > > > >    // Check the APIC Software Enable/Disable bit (bit 8) in
> > > > Spurious-Interrupt
> > > > >    // Vector Register.
> > > > >    // This bit will be 1, if local APIC is software enabled.
> > > > >    //
> > > > > -  ASSERT ((MmioRead32 (ApicBase + APIC_SVR) & BIT8) != 0);
> > > > > +  ASSERT ((MmioRead32 (ApicBase +
> > > > XAPIC_SPURIOUS_VECTOR_OFFSET) &
> > > > > BIT8)
> > > > > + != 0);
> > > > >
> > > > >    return ApicBase;
> > > > >  }
> > > > > @@ -98,7 +85,9 @@ InternalX86GetTimerFrequency (  {
> > > > >    return
> > > > >      PcdGet32(PcdFSBClock) /
> > > > > -    mTimerLibLocalApicDivisor[MmioBitFieldRead32 (ApicBase +
> > > > APIC_TDCR,
> > > > > 0, 3)];
> > > > > +    mTimerLibLocalApicDivisor[
> > > > > +      MmioBitFieldRead32 (ApicBase +
> > > > > XAPIC_TIMER_DIVIDE_CONFIGURATION_OFFSET, 0, 3)
> > > > > +      ];
> > > > >  }
> > > > >
> > > > >  /**
> > > > > @@ -115,7 +104,7 @@ InternalX86GetTimerTick (
> > > > >    IN      UINTN                     ApicBase
> > > > >    )
> > > > >  {
> > > > > -  return MmioRead32 (ApicBase + APIC_TMCCT);
> > > > > +  return MmioRead32 (ApicBase +
> > > > > XAPIC_TIMER_CURRENT_COUNT_OFFSET);
> > > > >  }
> > > > >
> > > > >  /**
> > > > > @@ -131,7 +120,7 @@ InternalX86GetInitTimerCount (
> > > > >    IN      UINTN                     ApicBase
> > > > >    )
> > > > >  {
> > > > > -  return MmioRead32 (ApicBase + APIC_TMICT);
> > > > > +  return MmioRead32 (ApicBase +
> > > > XAPIC_TIMER_INIT_COUNT_OFFSET);
> > > > >  }
> > > > >
> > > > >  /**
> > > > > diff --git
> > > > > a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > > b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > > index a00ebb0eeb64..286da09db174 100644
> > > > > ---
> > > > a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > > +++
> > > > b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > > @@ -13,7 +13,7 @@
> > > > >  # Note that for IA-32 and x64, this library only supports
> > > > xAPIC mode. If
> > > > > x2APIC  # support is desired, the SecPeiDxeTimerLibUefiCpu
> > > > library can be
> > > > > used.
> > > > >  #
> > > > > -# Copyright (c) 2007 - 2014, Intel Corporation. All rights
> > > > reserved.<BR>
> > > > > +# Copyright (c) 2007 - 2017, Intel Corporation. All rights
> > > > > +reserved.<BR>
> > > > >  #
> > > > >  #  This program and the accompanying materials  #  are
> > > > licensed and made
> > > > > available under the terms and conditions of the BSD License @@
> > > > -48,6 +48,7
> > > > > @@ [Sources.IPF]
> > > > >
> > > > >  [Packages]
> > > > >    MdePkg/MdePkg.dec
> > > > > +  UefiCpuPkg/UefiCpuPkg.dec
> > > > >
> > > > >
> > > > >  [LibraryClasses]
> > > > > @@ -57,6 +58,7 @@ [LibraryClasses.IA32, LibraryClasses.X64]
> > > > >    PcdLib
> > > > >    IoLib
> > > > >    DebugLib
> > > > > +  LocalApicLib
> > > > >
> > > > >  [LibraryClasses.IPF]
> > > > >    PalLib
> > > > > diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc index
> > > > > 010ce533d7ea..8988d1947566 100644
> > > > > --- a/MdePkg/MdePkg.dsc
> > > > > +++ b/MdePkg/MdePkg.dsc
> > > > > @@ -35,6 +35,9 @@ [PcdsFixedAtBuild]  [PcdsFixedAtBuild.IPF]
> > > > >
> > > > gEfiMdePkgTokenSpaceGuid.PcdIoBlockBaseAddressForIpf|0x0ffffc0000
> > > > 00
> > > > >
> > > > > +[LibraryClasses]
> > > > > +
> > > > >
> > > > +LocalApicLib|UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2Ap
> > > > icLib.i
> > > > > +nf
> > > > > +
> > > > >
> > > > >
> > >
> > ##########################################################
> > > > > #########################################
> > > > >  #
> > > > >  # Components Section - list of the modules and components that
> > > > will be
> > > > > processed by compilation
> > > > > --
> > > > > 2.12.2.windows.2
> > > > >
> > > > > _______________________________________________
> > > > > edk2-devel mailing list
> > > > > edk2-devel@lists.01.org
> > > > > https://lists.01.org/mailman/listinfo/edk2-devel
> > _______________________________________________
> > edk2-devel mailing list
> > edk2-devel@lists.01.org
> > https://lists.01.org/mailman/listinfo/edk2-devel
> _______________________________________________
> edk2-devel mailing list
> edk2-devel@lists.01.org
> https://lists.01.org/mailman/listinfo/edk2-devel
_______________________________________________
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Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg LAPIC code.

Posted by Marvin Häuser 7 years, 5 months ago

Hey Liming,

Old and new because sizeof (UINTN) is what matters.

Thanks,
Marvin.

> -----Original Message-----
> From: Gao, Liming [mailto:liming.gao@intel.com]
> Sent: Thursday, July 27, 2017 3:19 PM
> To: Marvin.Haeuser@outlook.com; edk2-devel@lists.01.org
> Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Fan, Jeff
> <jeff.fan@intel.com>
> Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg
> LAPIC code.
> 
> Marvin:
>   Do you meet with the compiler issue on the old VS tool chain?
> 
> Thanks
> Liming
> > -----Original Message-----
> > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of
> > Marvin H?user
> > Sent: Wednesday, July 26, 2017 4:34 PM
> > To: edk2-devel@lists.01.org
> > Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Fan, Jeff
> > <jeff.fan@intel.com>
> > Subject: Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> UefiCpuPkg LAPIC code.
> >
> > Hey Jeff,
> >
> > That would definitely fix the compilation issue.
> > Do I see it right that for 32-bit platforms, it's just ApicBase and for 64-bit
> platforms, it's ApicBase and ApicBaseHi?
> > If yes, maybe ~(UINTN)0xFFF should be used to play safe?
> >
> > Thanks,
> > Marvin.
> >
> > > -----Original Message-----
> > > From: Fan, Jeff [mailto:jeff.fan@intel.com]
> > > Sent: Wednesday, July 26, 2017 4:28 AM
> > > To: Marvin Häuser <Marvin.Haeuser@outlook.com>; edk2-
> > > devel@lists.01.org
> > > Cc: Kinney, Michael D <michael.d.kinney@intel.com>
> > > Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> UefiCpuPkg
> > > LAPIC code.
> > >
> > > Marvin,
> > >
> > > Could the following updating fix your issue?
> > >
> > > ApicBase = MsrValue & ~0xfff;
> > >
> > > Thanks!
> > > Jeff
> > >
> > > -----Original Message-----
> > > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf
> > > Of Marvin Häuser
> > > Sent: Tuesday, July 25, 2017 12:57 AM
> > > To: edk2-devel@lists.01.org
> > > Cc: Kinney, Michael D
> > > Subject: Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > > UefiCpuPkg LAPIC code.
> > >
> > > Hi Michael,
> > >
> > > Sorry, I did not notice that UefiCpuPkg already has a similiar library.
> > > Could you please answer my question regarding the mask value which I
> > > considered incorrect nevertheless?
> > > I am getting compile-time errors as the mask promotes the value to
> > > UINT64, which is, on 32-bit platforms, implicitely casted to UINT32
> > > (UINTN), resulting in the appropiate data loss warning.
> > >
> > > Thanks for your answer!
> > >
> > > Regards,
> > > Marvin.
> > >
> > > > -----Original Message-----
> > > > From: Kinney, Michael D [mailto:michael.d.kinney@intel.com]
> > > > Sent: Monday, July 24, 2017 6:40 PM
> > > > To: Marvin Häuser <Marvin.Haeuser@outlook.com>; edk2-
> > > > devel@lists.01.org; Kinney, Michael D <michael.d.kinney@intel.com>
> > > > Cc: Gao, Liming <liming.gao@intel.com>
> > > > Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > > UefiCpuPkg
> > > > LAPIC code.
> > > >
> > > > Hi Marvin,
> > > >
> > > > We should not add a dependency on the UefiCpuPkg to the MdePkg.  I
> > > > agree that a better location of the local APIC based timer lib
> > > > would be the UefiCpuPkg, and there is already one there called
> > > > SecPeiDxeTimerLibUefiCpu.
> > > >
> > > > The TimeLib in the MdePkg was created before the UefiCpuPkg was
> > > > created, which explains the current state of the MdePkg.
> > > >
> > > > The MdePkg version has other limitations noted in the INF and
> > > > recommends the UefiCpuPkg version be used.
> > > >
> > > > Thanks,
> > > >
> > > > Mike
> > > >
> > > > > -----Original Message-----
> > > > > From: Marvin Häuser [mailto:Marvin.Haeuser@outlook.com]
> > > > > Sent: Sunday, July 23, 2017 3:19 AM
> > > > > To: edk2-devel@lists.01.org
> > > > > Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming
> > > > > <liming.gao@intel.com>
> > > > > Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > > > UefiCpuPkg
> > > > > LAPIC code.
> > > > >
> > > > > Dear Michael and Liming,
> > > > >
> > > > > I submited the patch as the changes need to be done anyway,
> > > > > though I think the library might be better moved to UefiCpuPkg.
> > > > > Also, is my understanding of the mask value being incorrect
> > > > > right? I was confused by the 'ULL' suffix, which makes it look
> > > > > like it was intended. Is it?
> > > > >
> > > > > Regards,
> > > > > Marvin.
> > > > >
> > > > > > -----Original Message-----
> > > > > > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On
> > > > > Behalf Of
> > > > > > Marvin Häuser
> > > > > > Sent: Sunday, July 23, 2017 12:12 PM
> > > > > > To: edk2-devel@lists.01.org
> > > > > > Cc: michael.d.kinney@intel.com; liming.gao@intel.com
> > > > > > Subject: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > > > > > UefiCpuPkg LAPIC code.
> > > > > >
> > > > > > X86TimerLib is changed to use UefiCpuPkg LAPIC register
> > > > > definitions and
> > > > > > LocalApicLib to remove duplicated code. An implicite change is
> > > > > the value
> > > > > > returned by InternalX86GetApicBase() as it now returns the
> > > > > result of
> > > > > > GetLocalApicBaseAddress(), which is the full LAPIC address.
> > > > > This also
> > > > > > implicitely fixes the incorrect mask value used previously,
> > > > > which did not only
> > > > > > mask AcpiBase, but also the first nibble of AcpiBaseHi. This
> > > > > does not apply to
> > > > > > 32-bit platforms.
> > > > > >
> > > > > > Contributed-under: TianoCore Contribution Agreement 1.1
> > > > > > Signed-off-by: Marvin Haeuser <Marvin.Haeuser@outlook.com>
> > > > > > ---
> > > > > >  MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c            |
> > > > > 35 +++++++--
> > > > > > -----------
> > > > > >  MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > > > |
> > > > > 4 ++-
> > > > > >  MdePkg/MdePkg.dsc                                            |
> > > > > 3 ++
> > > > > >  3 files changed, 18 insertions(+), 24 deletions(-)
> > > > > >
> > > > > > diff --git a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > > > b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > > > index 76c66fbce6fb..fa6e6f213029 100644
> > > > > > --- a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > > > +++ b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > > > @@ -1,7 +1,7 @@
> > > > > >  /** @file
> > > > > >    Timer Library functions built upon local APIC on IA32/x64.
> > > > > >
> > > > > > -  Copyright (c) 2006 - 2015, Intel Corporation. All rights
> > > > > reserved.<BR>
> > > > > > +  Copyright (c) 2006 - 2017, Intel Corporation. All rights
> > > > > > + reserved.<BR>
> > > > > >    This program and the accompanying materials
> > > > > >    are licensed and made available under the terms and
> > > > > conditions of the BSD
> > > > > > License
> > > > > >    which accompanies this distribution.  The full text of the
> > > > > license may be
> > > > > > found at @@ -13,18 +13,14 @@  **/
> > > > > >
> > > > > >  #include <Base.h>
> > > > > > +#include <Register/LocalApic.h> #include
> > > > > > +<Library/LocalApicLib.h>
> > > > > >  #include <Library/TimerLib.h>  #include <Library/BaseLib.h>
> > > > > > #include <Library/IoLib.h>  #include <Library/PcdLib.h>
> > > > > > #include <Library/DebugLib.h>
> > > > > >
> > > > > > -#define APIC_SVR        0x0f0
> > > > > > -#define APIC_LVTERR     0x370
> > > > > > -#define APIC_TMICT      0x380
> > > > > > -#define APIC_TMCCT      0x390
> > > > > > -#define APIC_TDCR       0x3e0
> > > > > > -
> > > > > >  //
> > > > > >  // The following array is used in calculating the frequency
> > > > > > of
> > > > > local APIC  //
> > > > > > timer. Refer to IA-32 developers' manual for more details.
> > > > > > @@ -54,30 +50,21 @@ InternalX86GetApicBase (
> > > > > >    VOID
> > > > > >    )
> > > > > >  {
> > > > > > -  UINTN                             MsrValue;
> > > > > >    UINTN                             ApicBase;
> > > > > >
> > > > > > -  MsrValue = (UINTN) AsmReadMsr64 (27);
> > > > > > -  ApicBase = MsrValue & 0xffffff000ULL;
> > > > > > -
> > > > > >    //
> > > > > > -  // Check the APIC Global Enable bit (bit 11) in
> > > > > IA32_APIC_BASE MSR.
> > > > > > -  // This bit will be 1, if local APIC is globally enabled.
> > > > > > +  // Verify local APIC is under XAPIC mode.
> > > > > >    //
> > > > > > -  ASSERT ((MsrValue & BIT11) != 0);
> > > > > > +  ASSERT (GetApicMode () == LOCAL_APIC_MODE_XAPIC);
> > > > > >
> > > > > > -  //
> > > > > > -  // Check the APIC Extended Mode bit (bit 10) in
> > > > > IA32_APIC_BASE MSR.
> > > > > > -  // This bit will be 0, if local APIC is under XAPIC mode.
> > > > > > -  //
> > > > > > -  ASSERT ((MsrValue & BIT10) == 0);
> > > > > > +  ApicBase = GetLocalApicBaseAddress ();
> > > > > >
> > > > > >    //
> > > > > >    // Check the APIC Software Enable/Disable bit (bit 8) in
> > > > > Spurious-Interrupt
> > > > > >    // Vector Register.
> > > > > >    // This bit will be 1, if local APIC is software enabled.
> > > > > >    //
> > > > > > -  ASSERT ((MmioRead32 (ApicBase + APIC_SVR) & BIT8) != 0);
> > > > > > +  ASSERT ((MmioRead32 (ApicBase +
> > > > > XAPIC_SPURIOUS_VECTOR_OFFSET) &
> > > > > > BIT8)
> > > > > > + != 0);
> > > > > >
> > > > > >    return ApicBase;
> > > > > >  }
> > > > > > @@ -98,7 +85,9 @@ InternalX86GetTimerFrequency (  {
> > > > > >    return
> > > > > >      PcdGet32(PcdFSBClock) /
> > > > > > -    mTimerLibLocalApicDivisor[MmioBitFieldRead32 (ApicBase +
> > > > > APIC_TDCR,
> > > > > > 0, 3)];
> > > > > > +    mTimerLibLocalApicDivisor[
> > > > > > +      MmioBitFieldRead32 (ApicBase +
> > > > > > XAPIC_TIMER_DIVIDE_CONFIGURATION_OFFSET, 0, 3)
> > > > > > +      ];
> > > > > >  }
> > > > > >
> > > > > >  /**
> > > > > > @@ -115,7 +104,7 @@ InternalX86GetTimerTick (
> > > > > >    IN      UINTN                     ApicBase
> > > > > >    )
> > > > > >  {
> > > > > > -  return MmioRead32 (ApicBase + APIC_TMCCT);
> > > > > > +  return MmioRead32 (ApicBase +
> > > > > > XAPIC_TIMER_CURRENT_COUNT_OFFSET);
> > > > > >  }
> > > > > >
> > > > > >  /**
> > > > > > @@ -131,7 +120,7 @@ InternalX86GetInitTimerCount (
> > > > > >    IN      UINTN                     ApicBase
> > > > > >    )
> > > > > >  {
> > > > > > -  return MmioRead32 (ApicBase + APIC_TMICT);
> > > > > > +  return MmioRead32 (ApicBase +
> > > > > XAPIC_TIMER_INIT_COUNT_OFFSET);
> > > > > >  }
> > > > > >
> > > > > >  /**
> > > > > > diff --git
> > > > > >
> a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > > >
> b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > > > index a00ebb0eeb64..286da09db174 100644
> > > > > > ---
> > > > > a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > > > +++
> > > > > b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > > > @@ -13,7 +13,7 @@
> > > > > >  # Note that for IA-32 and x64, this library only supports
> > > > > xAPIC mode. If
> > > > > > x2APIC  # support is desired, the SecPeiDxeTimerLibUefiCpu
> > > > > library can be
> > > > > > used.
> > > > > >  #
> > > > > > -# Copyright (c) 2007 - 2014, Intel Corporation. All rights
> > > > > reserved.<BR>
> > > > > > +# Copyright (c) 2007 - 2017, Intel Corporation. All rights
> > > > > > +reserved.<BR>
> > > > > >  #
> > > > > >  #  This program and the accompanying materials  #  are
> > > > > licensed and made
> > > > > > available under the terms and conditions of the BSD License @@
> > > > > -48,6 +48,7
> > > > > > @@ [Sources.IPF]
> > > > > >
> > > > > >  [Packages]
> > > > > >    MdePkg/MdePkg.dec
> > > > > > +  UefiCpuPkg/UefiCpuPkg.dec
> > > > > >
> > > > > >
> > > > > >  [LibraryClasses]
> > > > > > @@ -57,6 +58,7 @@ [LibraryClasses.IA32, LibraryClasses.X64]
> > > > > >    PcdLib
> > > > > >    IoLib
> > > > > >    DebugLib
> > > > > > +  LocalApicLib
> > > > > >
> > > > > >  [LibraryClasses.IPF]
> > > > > >    PalLib
> > > > > > diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc index
> > > > > > 010ce533d7ea..8988d1947566 100644
> > > > > > --- a/MdePkg/MdePkg.dsc
> > > > > > +++ b/MdePkg/MdePkg.dsc
> > > > > > @@ -35,6 +35,9 @@ [PcdsFixedAtBuild]  [PcdsFixedAtBuild.IPF]
> > > > > >
> > > > >
> gEfiMdePkgTokenSpaceGuid.PcdIoBlockBaseAddressForIpf|0x0ffffc000
> > > > > 0
> > > > > 00
> > > > > >
> > > > > > +[LibraryClasses]
> > > > > > +
> > > > > >
> > > > >
> +LocalApicLib|UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2A
> > > > > +LocalApicLib|p
> > > > > icLib.i
> > > > > > +nf
> > > > > > +
> > > > > >
> > > > > >
> > > >
> > >
> ##########################################################
> > > > > > #########################################
> > > > > >  #
> > > > > >  # Components Section - list of the modules and components
> > > > > > that
> > > > > will be
> > > > > > processed by compilation
> > > > > > --
> > > > > > 2.12.2.windows.2
> > > > > >
> > > > > > _______________________________________________
> > > > > > edk2-devel mailing list
> > > > > > edk2-devel@lists.01.org
> > > > > > https://lists.01.org/mailman/listinfo/edk2-devel
> > > _______________________________________________
> > > edk2-devel mailing list
> > > edk2-devel@lists.01.org
> > > https://lists.01.org/mailman/listinfo/edk2-devel
> > _______________________________________________
> > edk2-devel mailing list
> > edk2-devel@lists.01.org
> > https://lists.01.org/mailman/listinfo/edk2-devel
_______________________________________________
edk2-devel mailing list
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Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg LAPIC code.

Posted by Gao, Liming 7 years, 5 months ago

Marvin:
  I build this library on IA32 with VS2013x86 and VS2015x86. They can pass build. Could you let me know how to reproduce the compiler issue? Then, we can further provide the patch to fix it. 

Thanks
Liming
> -----Original Message-----
> From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of Marvin H?user
> Sent: Thursday, July 27, 2017 9:49 PM
> To: edk2-devel@lists.01.org
> Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Fan, Jeff <jeff.fan@intel.com>; Gao, Liming <liming.gao@intel.com>
> Subject: Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg LAPIC code.
> 
> Hey Liming,
> 
> Old and new because sizeof (UINTN) is what matters.
> 
> Thanks,
> Marvin.
> 
> > -----Original Message-----
> > From: Gao, Liming [mailto:liming.gao@intel.com]
> > Sent: Thursday, July 27, 2017 3:19 PM
> > To: Marvin.Haeuser@outlook.com; edk2-devel@lists.01.org
> > Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Fan, Jeff
> > <jeff.fan@intel.com>
> > Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg
> > LAPIC code.
> >
> > Marvin:
> >   Do you meet with the compiler issue on the old VS tool chain?
> >
> > Thanks
> > Liming
> > > -----Original Message-----
> > > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of
> > > Marvin H?user
> > > Sent: Wednesday, July 26, 2017 4:34 PM
> > > To: edk2-devel@lists.01.org
> > > Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Fan, Jeff
> > > <jeff.fan@intel.com>
> > > Subject: Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > UefiCpuPkg LAPIC code.
> > >
> > > Hey Jeff,
> > >
> > > That would definitely fix the compilation issue.
> > > Do I see it right that for 32-bit platforms, it's just ApicBase and for 64-bit
> > platforms, it's ApicBase and ApicBaseHi?
> > > If yes, maybe ~(UINTN)0xFFF should be used to play safe?
> > >
> > > Thanks,
> > > Marvin.
> > >
> > > > -----Original Message-----
> > > > From: Fan, Jeff [mailto:jeff.fan@intel.com]
> > > > Sent: Wednesday, July 26, 2017 4:28 AM
> > > > To: Marvin Häuser <Marvin.Haeuser@outlook.com>; edk2-
> > > > devel@lists.01.org
> > > > Cc: Kinney, Michael D <michael.d.kinney@intel.com>
> > > > Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > UefiCpuPkg
> > > > LAPIC code.
> > > >
> > > > Marvin,
> > > >
> > > > Could the following updating fix your issue?
> > > >
> > > > ApicBase = MsrValue & ~0xfff;
> > > >
> > > > Thanks!
> > > > Jeff
> > > >
> > > > -----Original Message-----
> > > > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf
> > > > Of Marvin Häuser
> > > > Sent: Tuesday, July 25, 2017 12:57 AM
> > > > To: edk2-devel@lists.01.org
> > > > Cc: Kinney, Michael D
> > > > Subject: Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > > > UefiCpuPkg LAPIC code.
> > > >
> > > > Hi Michael,
> > > >
> > > > Sorry, I did not notice that UefiCpuPkg already has a similiar library.
> > > > Could you please answer my question regarding the mask value which I
> > > > considered incorrect nevertheless?
> > > > I am getting compile-time errors as the mask promotes the value to
> > > > UINT64, which is, on 32-bit platforms, implicitely casted to UINT32
> > > > (UINTN), resulting in the appropiate data loss warning.
> > > >
> > > > Thanks for your answer!
> > > >
> > > > Regards,
> > > > Marvin.
> > > >
> > > > > -----Original Message-----
> > > > > From: Kinney, Michael D [mailto:michael.d.kinney@intel.com]
> > > > > Sent: Monday, July 24, 2017 6:40 PM
> > > > > To: Marvin Häuser <Marvin.Haeuser@outlook.com>; edk2-
> > > > > devel@lists.01.org; Kinney, Michael D <michael.d.kinney@intel.com>
> > > > > Cc: Gao, Liming <liming.gao@intel.com>
> > > > > Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > > > UefiCpuPkg
> > > > > LAPIC code.
> > > > >
> > > > > Hi Marvin,
> > > > >
> > > > > We should not add a dependency on the UefiCpuPkg to the MdePkg.  I
> > > > > agree that a better location of the local APIC based timer lib
> > > > > would be the UefiCpuPkg, and there is already one there called
> > > > > SecPeiDxeTimerLibUefiCpu.
> > > > >
> > > > > The TimeLib in the MdePkg was created before the UefiCpuPkg was
> > > > > created, which explains the current state of the MdePkg.
> > > > >
> > > > > The MdePkg version has other limitations noted in the INF and
> > > > > recommends the UefiCpuPkg version be used.
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Mike
> > > > >
> > > > > > -----Original Message-----
> > > > > > From: Marvin Häuser [mailto:Marvin.Haeuser@outlook.com]
> > > > > > Sent: Sunday, July 23, 2017 3:19 AM
> > > > > > To: edk2-devel@lists.01.org
> > > > > > Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming
> > > > > > <liming.gao@intel.com>
> > > > > > Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > > > > UefiCpuPkg
> > > > > > LAPIC code.
> > > > > >
> > > > > > Dear Michael and Liming,
> > > > > >
> > > > > > I submited the patch as the changes need to be done anyway,
> > > > > > though I think the library might be better moved to UefiCpuPkg.
> > > > > > Also, is my understanding of the mask value being incorrect
> > > > > > right? I was confused by the 'ULL' suffix, which makes it look
> > > > > > like it was intended. Is it?
> > > > > >
> > > > > > Regards,
> > > > > > Marvin.
> > > > > >
> > > > > > > -----Original Message-----
> > > > > > > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On
> > > > > > Behalf Of
> > > > > > > Marvin Häuser
> > > > > > > Sent: Sunday, July 23, 2017 12:12 PM
> > > > > > > To: edk2-devel@lists.01.org
> > > > > > > Cc: michael.d.kinney@intel.com; liming.gao@intel.com
> > > > > > > Subject: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > > > > > > UefiCpuPkg LAPIC code.
> > > > > > >
> > > > > > > X86TimerLib is changed to use UefiCpuPkg LAPIC register
> > > > > > definitions and
> > > > > > > LocalApicLib to remove duplicated code. An implicite change is
> > > > > > the value
> > > > > > > returned by InternalX86GetApicBase() as it now returns the
> > > > > > result of
> > > > > > > GetLocalApicBaseAddress(), which is the full LAPIC address.
> > > > > > This also
> > > > > > > implicitely fixes the incorrect mask value used previously,
> > > > > > which did not only
> > > > > > > mask AcpiBase, but also the first nibble of AcpiBaseHi. This
> > > > > > does not apply to
> > > > > > > 32-bit platforms.
> > > > > > >
> > > > > > > Contributed-under: TianoCore Contribution Agreement 1.1
> > > > > > > Signed-off-by: Marvin Haeuser <Marvin.Haeuser@outlook.com>
> > > > > > > ---
> > > > > > >  MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c            |
> > > > > > 35 +++++++--
> > > > > > > -----------
> > > > > > >  MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > > > > |
> > > > > > 4 ++-
> > > > > > >  MdePkg/MdePkg.dsc                                            |
> > > > > > 3 ++
> > > > > > >  3 files changed, 18 insertions(+), 24 deletions(-)
> > > > > > >
> > > > > > > diff --git a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > > > > b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > > > > index 76c66fbce6fb..fa6e6f213029 100644
> > > > > > > --- a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > > > > +++ b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > > > > @@ -1,7 +1,7 @@
> > > > > > >  /** @file
> > > > > > >    Timer Library functions built upon local APIC on IA32/x64.
> > > > > > >
> > > > > > > -  Copyright (c) 2006 - 2015, Intel Corporation. All rights
> > > > > > reserved.<BR>
> > > > > > > +  Copyright (c) 2006 - 2017, Intel Corporation. All rights
> > > > > > > + reserved.<BR>
> > > > > > >    This program and the accompanying materials
> > > > > > >    are licensed and made available under the terms and
> > > > > > conditions of the BSD
> > > > > > > License
> > > > > > >    which accompanies this distribution.  The full text of the
> > > > > > license may be
> > > > > > > found at @@ -13,18 +13,14 @@  **/
> > > > > > >
> > > > > > >  #include <Base.h>
> > > > > > > +#include <Register/LocalApic.h> #include
> > > > > > > +<Library/LocalApicLib.h>
> > > > > > >  #include <Library/TimerLib.h>  #include <Library/BaseLib.h>
> > > > > > > #include <Library/IoLib.h>  #include <Library/PcdLib.h>
> > > > > > > #include <Library/DebugLib.h>
> > > > > > >
> > > > > > > -#define APIC_SVR        0x0f0
> > > > > > > -#define APIC_LVTERR     0x370
> > > > > > > -#define APIC_TMICT      0x380
> > > > > > > -#define APIC_TMCCT      0x390
> > > > > > > -#define APIC_TDCR       0x3e0
> > > > > > > -
> > > > > > >  //
> > > > > > >  // The following array is used in calculating the frequency
> > > > > > > of
> > > > > > local APIC  //
> > > > > > > timer. Refer to IA-32 developers' manual for more details.
> > > > > > > @@ -54,30 +50,21 @@ InternalX86GetApicBase (
> > > > > > >    VOID
> > > > > > >    )
> > > > > > >  {
> > > > > > > -  UINTN                             MsrValue;
> > > > > > >    UINTN                             ApicBase;
> > > > > > >
> > > > > > > -  MsrValue = (UINTN) AsmReadMsr64 (27);
> > > > > > > -  ApicBase = MsrValue & 0xffffff000ULL;
> > > > > > > -
> > > > > > >    //
> > > > > > > -  // Check the APIC Global Enable bit (bit 11) in
> > > > > > IA32_APIC_BASE MSR.
> > > > > > > -  // This bit will be 1, if local APIC is globally enabled.
> > > > > > > +  // Verify local APIC is under XAPIC mode.
> > > > > > >    //
> > > > > > > -  ASSERT ((MsrValue & BIT11) != 0);
> > > > > > > +  ASSERT (GetApicMode () == LOCAL_APIC_MODE_XAPIC);
> > > > > > >
> > > > > > > -  //
> > > > > > > -  // Check the APIC Extended Mode bit (bit 10) in
> > > > > > IA32_APIC_BASE MSR.
> > > > > > > -  // This bit will be 0, if local APIC is under XAPIC mode.
> > > > > > > -  //
> > > > > > > -  ASSERT ((MsrValue & BIT10) == 0);
> > > > > > > +  ApicBase = GetLocalApicBaseAddress ();
> > > > > > >
> > > > > > >    //
> > > > > > >    // Check the APIC Software Enable/Disable bit (bit 8) in
> > > > > > Spurious-Interrupt
> > > > > > >    // Vector Register.
> > > > > > >    // This bit will be 1, if local APIC is software enabled.
> > > > > > >    //
> > > > > > > -  ASSERT ((MmioRead32 (ApicBase + APIC_SVR) & BIT8) != 0);
> > > > > > > +  ASSERT ((MmioRead32 (ApicBase +
> > > > > > XAPIC_SPURIOUS_VECTOR_OFFSET) &
> > > > > > > BIT8)
> > > > > > > + != 0);
> > > > > > >
> > > > > > >    return ApicBase;
> > > > > > >  }
> > > > > > > @@ -98,7 +85,9 @@ InternalX86GetTimerFrequency (  {
> > > > > > >    return
> > > > > > >      PcdGet32(PcdFSBClock) /
> > > > > > > -    mTimerLibLocalApicDivisor[MmioBitFieldRead32 (ApicBase +
> > > > > > APIC_TDCR,
> > > > > > > 0, 3)];
> > > > > > > +    mTimerLibLocalApicDivisor[
> > > > > > > +      MmioBitFieldRead32 (ApicBase +
> > > > > > > XAPIC_TIMER_DIVIDE_CONFIGURATION_OFFSET, 0, 3)
> > > > > > > +      ];
> > > > > > >  }
> > > > > > >
> > > > > > >  /**
> > > > > > > @@ -115,7 +104,7 @@ InternalX86GetTimerTick (
> > > > > > >    IN      UINTN                     ApicBase
> > > > > > >    )
> > > > > > >  {
> > > > > > > -  return MmioRead32 (ApicBase + APIC_TMCCT);
> > > > > > > +  return MmioRead32 (ApicBase +
> > > > > > > XAPIC_TIMER_CURRENT_COUNT_OFFSET);
> > > > > > >  }
> > > > > > >
> > > > > > >  /**
> > > > > > > @@ -131,7 +120,7 @@ InternalX86GetInitTimerCount (
> > > > > > >    IN      UINTN                     ApicBase
> > > > > > >    )
> > > > > > >  {
> > > > > > > -  return MmioRead32 (ApicBase + APIC_TMICT);
> > > > > > > +  return MmioRead32 (ApicBase +
> > > > > > XAPIC_TIMER_INIT_COUNT_OFFSET);
> > > > > > >  }
> > > > > > >
> > > > > > >  /**
> > > > > > > diff --git
> > > > > > >
> > a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > > > >
> > b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > > > > index a00ebb0eeb64..286da09db174 100644
> > > > > > > ---
> > > > > > a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > > > > +++
> > > > > > b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > > > > @@ -13,7 +13,7 @@
> > > > > > >  # Note that for IA-32 and x64, this library only supports
> > > > > > xAPIC mode. If
> > > > > > > x2APIC  # support is desired, the SecPeiDxeTimerLibUefiCpu
> > > > > > library can be
> > > > > > > used.
> > > > > > >  #
> > > > > > > -# Copyright (c) 2007 - 2014, Intel Corporation. All rights
> > > > > > reserved.<BR>
> > > > > > > +# Copyright (c) 2007 - 2017, Intel Corporation. All rights
> > > > > > > +reserved.<BR>
> > > > > > >  #
> > > > > > >  #  This program and the accompanying materials  #  are
> > > > > > licensed and made
> > > > > > > available under the terms and conditions of the BSD License @@
> > > > > > -48,6 +48,7
> > > > > > > @@ [Sources.IPF]
> > > > > > >
> > > > > > >  [Packages]
> > > > > > >    MdePkg/MdePkg.dec
> > > > > > > +  UefiCpuPkg/UefiCpuPkg.dec
> > > > > > >
> > > > > > >
> > > > > > >  [LibraryClasses]
> > > > > > > @@ -57,6 +58,7 @@ [LibraryClasses.IA32, LibraryClasses.X64]
> > > > > > >    PcdLib
> > > > > > >    IoLib
> > > > > > >    DebugLib
> > > > > > > +  LocalApicLib
> > > > > > >
> > > > > > >  [LibraryClasses.IPF]
> > > > > > >    PalLib
> > > > > > > diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc index
> > > > > > > 010ce533d7ea..8988d1947566 100644
> > > > > > > --- a/MdePkg/MdePkg.dsc
> > > > > > > +++ b/MdePkg/MdePkg.dsc
> > > > > > > @@ -35,6 +35,9 @@ [PcdsFixedAtBuild]  [PcdsFixedAtBuild.IPF]
> > > > > > >
> > > > > >
> > gEfiMdePkgTokenSpaceGuid.PcdIoBlockBaseAddressForIpf|0x0ffffc000
> > > > > > 0
> > > > > > 00
> > > > > > >
> > > > > > > +[LibraryClasses]
> > > > > > > +
> > > > > > >
> > > > > >
> > +LocalApicLib|UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2A
> > > > > > +LocalApicLib|p
> > > > > > icLib.i
> > > > > > > +nf
> > > > > > > +
> > > > > > >
> > > > > > >
> > > > >
> > > >
> > ##########################################################
> > > > > > > #########################################
> > > > > > >  #
> > > > > > >  # Components Section - list of the modules and components
> > > > > > > that
> > > > > > will be
> > > > > > > processed by compilation
> > > > > > > --
> > > > > > > 2.12.2.windows.2
> > > > > > >
> > > > > > > _______________________________________________
> > > > > > > edk2-devel mailing list
> > > > > > > edk2-devel@lists.01.org
> > > > > > > https://lists.01.org/mailman/listinfo/edk2-devel
> > > > _______________________________________________
> > > > edk2-devel mailing list
> > > > edk2-devel@lists.01.org
> > > > https://lists.01.org/mailman/listinfo/edk2-devel
> > > _______________________________________________
> > > edk2-devel mailing list
> > > edk2-devel@lists.01.org
> > > https://lists.01.org/mailman/listinfo/edk2-devel
> _______________________________________________
> edk2-devel mailing list
> edk2-devel@lists.01.org
> https://lists.01.org/mailman/listinfo/edk2-devel
_______________________________________________
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Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg LAPIC code.

Posted by Marvin Häuser 7 years, 5 months ago

Hey Liming,

Thanks for your answer! Sorry, it seems like I indeed had a typo in the build command and accidentially built with 2005 instead of 2015.
It builds fine with VS2015, though I still think the mask value is incorrect. After all it includes the first nibble of ApicBaseHi on 64-bit platforms, rather than the entire value.

Regards,
Marvin.

> -----Original Message-----
> From: Gao, Liming [mailto:liming.gao@intel.com]
> Sent: Thursday, July 27, 2017 5:09 PM
> To: Marvin.Haeuser@outlook.com; edk2-devel@lists.01.org
> Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Fan, Jeff
> <jeff.fan@intel.com>
> Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume UefiCpuPkg
> LAPIC code.
> 
> Marvin:
>   I build this library on IA32 with VS2013x86 and VS2015x86. They can pass
> build. Could you let me know how to reproduce the compiler issue? Then,
> we can further provide the patch to fix it.
> 
> Thanks
> Liming
> > -----Original Message-----
> > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of
> > Marvin H?user
> > Sent: Thursday, July 27, 2017 9:49 PM
> > To: edk2-devel@lists.01.org
> > Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Fan, Jeff
> > <jeff.fan@intel.com>; Gao, Liming <liming.gao@intel.com>
> > Subject: Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> UefiCpuPkg LAPIC code.
> >
> > Hey Liming,
> >
> > Old and new because sizeof (UINTN) is what matters.
> >
> > Thanks,
> > Marvin.
> >
> > > -----Original Message-----
> > > From: Gao, Liming [mailto:liming.gao@intel.com]
> > > Sent: Thursday, July 27, 2017 3:19 PM
> > > To: Marvin.Haeuser@outlook.com; edk2-devel@lists.01.org
> > > Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Fan, Jeff
> > > <jeff.fan@intel.com>
> > > Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> UefiCpuPkg
> > > LAPIC code.
> > >
> > > Marvin:
> > >   Do you meet with the compiler issue on the old VS tool chain?
> > >
> > > Thanks
> > > Liming
> > > > -----Original Message-----
> > > > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On
> > > > Behalf Of Marvin H?user
> > > > Sent: Wednesday, July 26, 2017 4:34 PM
> > > > To: edk2-devel@lists.01.org
> > > > Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Fan, Jeff
> > > > <jeff.fan@intel.com>
> > > > Subject: Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > > UefiCpuPkg LAPIC code.
> > > >
> > > > Hey Jeff,
> > > >
> > > > That would definitely fix the compilation issue.
> > > > Do I see it right that for 32-bit platforms, it's just ApicBase
> > > > and for 64-bit
> > > platforms, it's ApicBase and ApicBaseHi?
> > > > If yes, maybe ~(UINTN)0xFFF should be used to play safe?
> > > >
> > > > Thanks,
> > > > Marvin.
> > > >
> > > > > -----Original Message-----
> > > > > From: Fan, Jeff [mailto:jeff.fan@intel.com]
> > > > > Sent: Wednesday, July 26, 2017 4:28 AM
> > > > > To: Marvin Häuser <Marvin.Haeuser@outlook.com>; edk2-
> > > > > devel@lists.01.org
> > > > > Cc: Kinney, Michael D <michael.d.kinney@intel.com>
> > > > > Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > > UefiCpuPkg
> > > > > LAPIC code.
> > > > >
> > > > > Marvin,
> > > > >
> > > > > Could the following updating fix your issue?
> > > > >
> > > > > ApicBase = MsrValue & ~0xfff;
> > > > >
> > > > > Thanks!
> > > > > Jeff
> > > > >
> > > > > -----Original Message-----
> > > > > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On
> > > > > Behalf Of Marvin Häuser
> > > > > Sent: Tuesday, July 25, 2017 12:57 AM
> > > > > To: edk2-devel@lists.01.org
> > > > > Cc: Kinney, Michael D
> > > > > Subject: Re: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu:
> Consume
> > > > > UefiCpuPkg LAPIC code.
> > > > >
> > > > > Hi Michael,
> > > > >
> > > > > Sorry, I did not notice that UefiCpuPkg already has a similiar library.
> > > > > Could you please answer my question regarding the mask value
> > > > > which I considered incorrect nevertheless?
> > > > > I am getting compile-time errors as the mask promotes the value
> > > > > to UINT64, which is, on 32-bit platforms, implicitely casted to
> > > > > UINT32 (UINTN), resulting in the appropiate data loss warning.
> > > > >
> > > > > Thanks for your answer!
> > > > >
> > > > > Regards,
> > > > > Marvin.
> > > > >
> > > > > > -----Original Message-----
> > > > > > From: Kinney, Michael D [mailto:michael.d.kinney@intel.com]
> > > > > > Sent: Monday, July 24, 2017 6:40 PM
> > > > > > To: Marvin Häuser <Marvin.Haeuser@outlook.com>; edk2-
> > > > > > devel@lists.01.org; Kinney, Michael D
> > > > > > <michael.d.kinney@intel.com>
> > > > > > Cc: Gao, Liming <liming.gao@intel.com>
> > > > > > Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > > > > UefiCpuPkg
> > > > > > LAPIC code.
> > > > > >
> > > > > > Hi Marvin,
> > > > > >
> > > > > > We should not add a dependency on the UefiCpuPkg to the
> > > > > > MdePkg.  I agree that a better location of the local APIC
> > > > > > based timer lib would be the UefiCpuPkg, and there is already
> > > > > > one there called SecPeiDxeTimerLibUefiCpu.
> > > > > >
> > > > > > The TimeLib in the MdePkg was created before the UefiCpuPkg
> > > > > > was created, which explains the current state of the MdePkg.
> > > > > >
> > > > > > The MdePkg version has other limitations noted in the INF and
> > > > > > recommends the UefiCpuPkg version be used.
> > > > > >
> > > > > > Thanks,
> > > > > >
> > > > > > Mike
> > > > > >
> > > > > > > -----Original Message-----
> > > > > > > From: Marvin Häuser [mailto:Marvin.Haeuser@outlook.com]
> > > > > > > Sent: Sunday, July 23, 2017 3:19 AM
> > > > > > > To: edk2-devel@lists.01.org
> > > > > > > Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Gao,
> > > > > > > Liming <liming.gao@intel.com>
> > > > > > > Subject: RE: [PATCH] MdePkg/SecPeiDxeTimerLibCpu: Consume
> > > > > > UefiCpuPkg
> > > > > > > LAPIC code.
> > > > > > >
> > > > > > > Dear Michael and Liming,
> > > > > > >
> > > > > > > I submited the patch as the changes need to be done anyway,
> > > > > > > though I think the library might be better moved to UefiCpuPkg.
> > > > > > > Also, is my understanding of the mask value being incorrect
> > > > > > > right? I was confused by the 'ULL' suffix, which makes it
> > > > > > > look like it was intended. Is it?
> > > > > > >
> > > > > > > Regards,
> > > > > > > Marvin.
> > > > > > >
> > > > > > > > -----Original Message-----
> > > > > > > > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org]
> > > > > > > > On
> > > > > > > Behalf Of
> > > > > > > > Marvin Häuser
> > > > > > > > Sent: Sunday, July 23, 2017 12:12 PM
> > > > > > > > To: edk2-devel@lists.01.org
> > > > > > > > Cc: michael.d.kinney@intel.com; liming.gao@intel.com
> > > > > > > > Subject: [edk2] [PATCH] MdePkg/SecPeiDxeTimerLibCpu:
> > > > > > > > Consume UefiCpuPkg LAPIC code.
> > > > > > > >
> > > > > > > > X86TimerLib is changed to use UefiCpuPkg LAPIC register
> > > > > > > definitions and
> > > > > > > > LocalApicLib to remove duplicated code. An implicite
> > > > > > > > change is
> > > > > > > the value
> > > > > > > > returned by InternalX86GetApicBase() as it now returns the
> > > > > > > result of
> > > > > > > > GetLocalApicBaseAddress(), which is the full LAPIC address.
> > > > > > > This also
> > > > > > > > implicitely fixes the incorrect mask value used
> > > > > > > > previously,
> > > > > > > which did not only
> > > > > > > > mask AcpiBase, but also the first nibble of AcpiBaseHi.
> > > > > > > > This
> > > > > > > does not apply to
> > > > > > > > 32-bit platforms.
> > > > > > > >
> > > > > > > > Contributed-under: TianoCore Contribution Agreement 1.1
> > > > > > > > Signed-off-by: Marvin Haeuser
> <Marvin.Haeuser@outlook.com>
> > > > > > > > ---
> > > > > > > >  MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c            |
> > > > > > > 35 +++++++--
> > > > > > > > -----------
> > > > > > > >
> > > > > > > >
> MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.i
> > > > > > > > nf
> > > > > > > > |
> > > > > > > 4 ++-
> > > > > > > >  MdePkg/MdePkg.dsc                                            |
> > > > > > > 3 ++
> > > > > > > >  3 files changed, 18 insertions(+), 24 deletions(-)
> > > > > > > >
> > > > > > > > diff --git
> > > > > > > > a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > > > > > b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > > > > > index 76c66fbce6fb..fa6e6f213029 100644
> > > > > > > > --- a/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > > > > > +++ b/MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
> > > > > > > > @@ -1,7 +1,7 @@
> > > > > > > >  /** @file
> > > > > > > >    Timer Library functions built upon local APIC on IA32/x64.
> > > > > > > >
> > > > > > > > -  Copyright (c) 2006 - 2015, Intel Corporation. All
> > > > > > > > rights
> > > > > > > reserved.<BR>
> > > > > > > > +  Copyright (c) 2006 - 2017, Intel Corporation. All
> > > > > > > > + rights reserved.<BR>
> > > > > > > >    This program and the accompanying materials
> > > > > > > >    are licensed and made available under the terms and
> > > > > > > conditions of the BSD
> > > > > > > > License
> > > > > > > >    which accompanies this distribution.  The full text of
> > > > > > > > the
> > > > > > > license may be
> > > > > > > > found at @@ -13,18 +13,14 @@  **/
> > > > > > > >
> > > > > > > >  #include <Base.h>
> > > > > > > > +#include <Register/LocalApic.h> #include
> > > > > > > > +<Library/LocalApicLib.h>
> > > > > > > >  #include <Library/TimerLib.h>  #include
> > > > > > > > <Library/BaseLib.h> #include <Library/IoLib.h>  #include
> > > > > > > > <Library/PcdLib.h> #include <Library/DebugLib.h>
> > > > > > > >
> > > > > > > > -#define APIC_SVR        0x0f0
> > > > > > > > -#define APIC_LVTERR     0x370
> > > > > > > > -#define APIC_TMICT      0x380
> > > > > > > > -#define APIC_TMCCT      0x390
> > > > > > > > -#define APIC_TDCR       0x3e0
> > > > > > > > -
> > > > > > > >  //
> > > > > > > >  // The following array is used in calculating the
> > > > > > > > frequency of
> > > > > > > local APIC  //
> > > > > > > > timer. Refer to IA-32 developers' manual for more details.
> > > > > > > > @@ -54,30 +50,21 @@ InternalX86GetApicBase (
> > > > > > > >    VOID
> > > > > > > >    )
> > > > > > > >  {
> > > > > > > > -  UINTN                             MsrValue;
> > > > > > > >    UINTN                             ApicBase;
> > > > > > > >
> > > > > > > > -  MsrValue = (UINTN) AsmReadMsr64 (27);
> > > > > > > > -  ApicBase = MsrValue & 0xffffff000ULL;
> > > > > > > > -
> > > > > > > >    //
> > > > > > > > -  // Check the APIC Global Enable bit (bit 11) in
> > > > > > > IA32_APIC_BASE MSR.
> > > > > > > > -  // This bit will be 1, if local APIC is globally enabled.
> > > > > > > > +  // Verify local APIC is under XAPIC mode.
> > > > > > > >    //
> > > > > > > > -  ASSERT ((MsrValue & BIT11) != 0);
> > > > > > > > +  ASSERT (GetApicMode () == LOCAL_APIC_MODE_XAPIC);
> > > > > > > >
> > > > > > > > -  //
> > > > > > > > -  // Check the APIC Extended Mode bit (bit 10) in
> > > > > > > IA32_APIC_BASE MSR.
> > > > > > > > -  // This bit will be 0, if local APIC is under XAPIC mode.
> > > > > > > > -  //
> > > > > > > > -  ASSERT ((MsrValue & BIT10) == 0);
> > > > > > > > +  ApicBase = GetLocalApicBaseAddress ();
> > > > > > > >
> > > > > > > >    //
> > > > > > > >    // Check the APIC Software Enable/Disable bit (bit 8)
> > > > > > > > in
> > > > > > > Spurious-Interrupt
> > > > > > > >    // Vector Register.
> > > > > > > >    // This bit will be 1, if local APIC is software enabled.
> > > > > > > >    //
> > > > > > > > -  ASSERT ((MmioRead32 (ApicBase + APIC_SVR) & BIT8) !=
> > > > > > > > 0);
> > > > > > > > +  ASSERT ((MmioRead32 (ApicBase +
> > > > > > > XAPIC_SPURIOUS_VECTOR_OFFSET) &
> > > > > > > > BIT8)
> > > > > > > > + != 0);
> > > > > > > >
> > > > > > > >    return ApicBase;
> > > > > > > >  }
> > > > > > > > @@ -98,7 +85,9 @@ InternalX86GetTimerFrequency (  {
> > > > > > > >    return
> > > > > > > >      PcdGet32(PcdFSBClock) /
> > > > > > > > -    mTimerLibLocalApicDivisor[MmioBitFieldRead32 (ApicBase +
> > > > > > > APIC_TDCR,
> > > > > > > > 0, 3)];
> > > > > > > > +    mTimerLibLocalApicDivisor[
> > > > > > > > +      MmioBitFieldRead32 (ApicBase +
> > > > > > > > XAPIC_TIMER_DIVIDE_CONFIGURATION_OFFSET, 0, 3)
> > > > > > > > +      ];
> > > > > > > >  }
> > > > > > > >
> > > > > > > >  /**
> > > > > > > > @@ -115,7 +104,7 @@ InternalX86GetTimerTick (
> > > > > > > >    IN      UINTN                     ApicBase
> > > > > > > >    )
> > > > > > > >  {
> > > > > > > > -  return MmioRead32 (ApicBase + APIC_TMCCT);
> > > > > > > > +  return MmioRead32 (ApicBase +
> > > > > > > > XAPIC_TIMER_CURRENT_COUNT_OFFSET);
> > > > > > > >  }
> > > > > > > >
> > > > > > > >  /**
> > > > > > > > @@ -131,7 +120,7 @@ InternalX86GetInitTimerCount (
> > > > > > > >    IN      UINTN                     ApicBase
> > > > > > > >    )
> > > > > > > >  {
> > > > > > > > -  return MmioRead32 (ApicBase + APIC_TMICT);
> > > > > > > > +  return MmioRead32 (ApicBase +
> > > > > > > XAPIC_TIMER_INIT_COUNT_OFFSET);
> > > > > > > >  }
> > > > > > > >
> > > > > > > >  /**
> > > > > > > > diff --git
> > > > > > > >
> > > a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > > > > >
> > > b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
> > > > > > > > index a00ebb0eeb64..286da09db174 100644
> > > > > > > > ---
> > > > > > >
> a/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.i
> > > > > > > nf
> > > > > > > > +++
> > > > > > >
> b/MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.i
> > > > > > > nf
> > > > > > > > @@ -13,7 +13,7 @@
> > > > > > > >  # Note that for IA-32 and x64, this library only supports
> > > > > > > xAPIC mode. If
> > > > > > > > x2APIC  # support is desired, the SecPeiDxeTimerLibUefiCpu
> > > > > > > library can be
> > > > > > > > used.
> > > > > > > >  #
> > > > > > > > -# Copyright (c) 2007 - 2014, Intel Corporation. All
> > > > > > > > rights
> > > > > > > reserved.<BR>
> > > > > > > > +# Copyright (c) 2007 - 2017, Intel Corporation. All
> > > > > > > > +rights reserved.<BR>
> > > > > > > >  #
> > > > > > > >  #  This program and the accompanying materials  #  are
> > > > > > > licensed and made
> > > > > > > > available under the terms and conditions of the BSD
> > > > > > > > License @@
> > > > > > > -48,6 +48,7
> > > > > > > > @@ [Sources.IPF]
> > > > > > > >
> > > > > > > >  [Packages]
> > > > > > > >    MdePkg/MdePkg.dec
> > > > > > > > +  UefiCpuPkg/UefiCpuPkg.dec
> > > > > > > >
> > > > > > > >
> > > > > > > >  [LibraryClasses]
> > > > > > > > @@ -57,6 +58,7 @@ [LibraryClasses.IA32, LibraryClasses.X64]
> > > > > > > >    PcdLib
> > > > > > > >    IoLib
> > > > > > > >    DebugLib
> > > > > > > > +  LocalApicLib
> > > > > > > >
> > > > > > > >  [LibraryClasses.IPF]
> > > > > > > >    PalLib
> > > > > > > > diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc index
> > > > > > > > 010ce533d7ea..8988d1947566 100644
> > > > > > > > --- a/MdePkg/MdePkg.dsc
> > > > > > > > +++ b/MdePkg/MdePkg.dsc
> > > > > > > > @@ -35,6 +35,9 @@ [PcdsFixedAtBuild]
> > > > > > > > [PcdsFixedAtBuild.IPF]
> > > > > > > >
> > > > > > >
> > > gEfiMdePkgTokenSpaceGuid.PcdIoBlockBaseAddressForIpf|0x0ffffc000
> > > > > > > 0
> > > > > > > 00
> > > > > > > >
> > > > > > > > +[LibraryClasses]
> > > > > > > > +
> > > > > > > >
> > > > > > >
> > > +LocalApicLib|UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2A
> > > > > > > +LocalApicLib|p
> > > > > > > icLib.i
> > > > > > > > +nf
> > > > > > > > +
> > > > > > > >
> > > > > > > >
> > > > > >
> > > > >
> > >
> ##########################################################
> > > > > > > > #########################################
> > > > > > > >  #
> > > > > > > >  # Components Section - list of the modules and components
> > > > > > > > that
> > > > > > > will be
> > > > > > > > processed by compilation
> > > > > > > > --
> > > > > > > > 2.12.2.windows.2
> > > > > > > >
> > > > > > > > _______________________________________________
> > > > > > > > edk2-devel mailing list
> > > > > > > > edk2-devel@lists.01.org
> > > > > > > > https://lists.01.org/mailman/listinfo/edk2-devel
> > > > > _______________________________________________
> > > > > edk2-devel mailing list
> > > > > edk2-devel@lists.01.org
> > > > > https://lists.01.org/mailman/listinfo/edk2-devel
> > > > _______________________________________________
> > > > edk2-devel mailing list
> > > > edk2-devel@lists.01.org
> > > > https://lists.01.org/mailman/listinfo/edk2-devel
> > _______________________________________________
> > edk2-devel mailing list
> > edk2-devel@lists.01.org
> > https://lists.01.org/mailman/listinfo/edk2-devel
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