[PATCH v5 1/4] intel_iommu: fix FRCD construction macro

CLEMENT MATHIEU--DRIF posted 4 patches 5 months, 3 weeks ago
Only 3 patches received!
There is a newer version of this series
[PATCH v5 1/4] intel_iommu: fix FRCD construction macro
Posted by CLEMENT MATHIEU--DRIF 5 months, 3 weeks ago
From: Clément Mathieu--Drif <clement.mathieu--drif@eviden.com>

The constant must be unsigned, otherwise the two's complement
overrides the other fields when a PASID is present.

Fixes: 1b2b12376c8a ("intel-iommu: PASID support")
Signed-off-by: Clément Mathieu--Drif <clement.mathieu--drif@eviden.com>
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
---
 hw/i386/intel_iommu_internal.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/i386/intel_iommu_internal.h b/hw/i386/intel_iommu_internal.h
index f8cf99bddf..cbc4030031 100644
--- a/hw/i386/intel_iommu_internal.h
+++ b/hw/i386/intel_iommu_internal.h
@@ -267,7 +267,7 @@
 /* For the low 64-bit of 128-bit */
 #define VTD_FRCD_FI(val)        ((val) & ~0xfffULL)
 #define VTD_FRCD_PV(val)        (((val) & 0xffffULL) << 40)
-#define VTD_FRCD_PP(val)        (((val) & 0x1) << 31)
+#define VTD_FRCD_PP(val)        (((val) & 0x1ULL) << 31)
 #define VTD_FRCD_IR_IDX(val)    (((val) & 0xffffULL) << 48)
 
 /* DMA Remapping Fault Conditions */
-- 
2.45.2
Re: [PATCH v5 1/4] intel_iommu: fix FRCD construction macro
Posted by Minwoo Im 5 months, 3 weeks ago
On 24-07-08 11:39:53, CLEMENT MATHIEU--DRIF wrote:
> From: Clément Mathieu--Drif <clement.mathieu--drif@eviden.com>
> 
> The constant must be unsigned, otherwise the two's complement
> overrides the other fields when a PASID is present.
> 
> Fixes: 1b2b12376c8a ("intel-iommu: PASID support")
> Signed-off-by: Clément Mathieu--Drif <clement.mathieu--drif@eviden.com>
> Reviewed-by: Yi Liu <yi.l.liu@intel.com>
> Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>

Reviewed-by: Minwoo Im <minwoo.im@samsung.com>