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Tsirkin" , Cornelia Huck , Paolo Bonzini , qemu-arm@nongnu.org, qemu-devel@nongnu.org, Haibo Xu , Andrew Jones , Marc Zyngier Cc: Miguel Luis Subject: [RFC PATCH 1/5] linux-headers: [kvm, arm64] add the necessary definitions to match host kernel Date: Mon, 27 Feb 2023 15:37:14 -0100 Message-Id: <20230227163718.62003-2-miguel.luis@oracle.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230227163718.62003-1-miguel.luis@oracle.com> References: <20230227163718.62003-1-miguel.luis@oracle.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.170.22 definitions=2023-02-27_13,2023-02-27_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 bulkscore=0 adultscore=0 mlxlogscore=999 suspectscore=0 phishscore=0 spamscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302270129 X-Proofpoint-GUID: Ic64kyM51a6SpWhw5atj_ymbtFzg0klF X-Proofpoint-ORIG-GUID: Ic64kyM51a6SpWhw5atj_ymbtFzg0klF Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.220.177.32; envelope-from=miguel.luis@oracle.com; helo=mx0b-00069f02.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1677515967202100001 Content-Type: text/plain; charset="utf-8" From: Haibo Xu linux-headers define host properties needed for the VMM to interact with KVM, so let's include them *while* they're not available yet on linux upstream since aarch64 nested virtualization is still a work in progress. Ref: https://lore.kernel.org/qemu-devel/636b5932e4cf061b6f97516e82d4319c1d2= 9b871.1616052889.git.haibo.xu@linaro.org/ Signed-off-by: Haibo Xu Signed-off-by: Miguel Luis --- linux-headers/asm-arm64/kvm.h | 2 ++ linux-headers/linux/kvm.h | 1 + 2 files changed, 3 insertions(+) diff --git a/linux-headers/asm-arm64/kvm.h b/linux-headers/asm-arm64/kvm.h index 4bf2d7246e..7bbcba7418 100644 --- a/linux-headers/asm-arm64/kvm.h +++ b/linux-headers/asm-arm64/kvm.h @@ -108,6 +108,7 @@ struct kvm_regs { #define KVM_ARM_VCPU_SVE 4 /* enable SVE for this CPU */ #define KVM_ARM_VCPU_PTRAUTH_ADDRESS 5 /* VCPU uses address authentication= */ #define KVM_ARM_VCPU_PTRAUTH_GENERIC 6 /* VCPU uses generic authentication= */ +#define KVM_ARM_VCPU_HAS_EL2 7 /* Support Nested Virtualization */ =20 struct kvm_vcpu_init { __u32 target; @@ -379,6 +380,7 @@ enum { #define KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS 6 #define KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO 7 #define KVM_DEV_ARM_VGIC_GRP_ITS_REGS 8 +#define KVM_DEV_ARM_VGIC_GRP_MAINT_IRQ 9 #define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT 10 #define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_MASK \ (0x3fffffULL << KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT) diff --git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h index ebdafa576d..bfd1d73988 100644 --- a/linux-headers/linux/kvm.h +++ b/linux-headers/linux/kvm.h @@ -1175,6 +1175,7 @@ struct kvm_ppc_resize_hpt { #define KVM_CAP_VM_DISABLE_NX_HUGE_PAGES 220 #define KVM_CAP_S390_ZPCI_OP 221 #define KVM_CAP_S390_CPU_TOPOLOGY 222 +#define KVM_CAP_ARM_EL2 226 =20 #ifdef KVM_CAP_IRQ_ROUTING =20 --=20 2.39.2 From nobody Fri May 3 15:44:26 2024 Delivered-To: importer2@patchew.org Authentication-Results: mx.zohomail.com; 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Mon, 27 Feb 2023 16:37:29 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=corp-2022-7-12; bh=c0UG+nEBmzg7tdv9ex8dMP9Qxk+vYCaG2dOlM/WmGfA=; b=tA5m6cL/iNSdHvKQspOnVy669Vyyo4eFC18jGqYmdg9Q0b61V5LJzbhg0piA1/57nRSd aB84NbPDWZ+SlkZiE8/p8m1bcIQ7utuDLtjPcQJn9SQzEta/ujk/R2iCWcn1WqIc13c5 j5/emXg1Uhnqfh+p/L2HUe9bI7kDfC+5N1zKj5UwgbLZoWxCMHcN9eBQc5virYDd36kb QtnfTnxFbG0zbJCBQuzMsZjbKqI53hmqVD/D3vCDcTm3z8VcKGwXrY7mgeyvpGjDmtGS 2tj8lopH40XlXX3b8YIUMhkbtw5F3Fj3ql3rFWYk3oI4BfRxAkFw2MkK/9eCce+xwVf2 yg== From: Miguel Luis To: Peter Maydell , "Michael S . Tsirkin" , Cornelia Huck , Paolo Bonzini , qemu-arm@nongnu.org, qemu-devel@nongnu.org, Haibo Xu , Andrew Jones , Marc Zyngier Cc: Miguel Luis Subject: [RFC PATCH 2/5] hw/intc/gicv3: add support for setting KVM vGIC maintenance IRQ Date: Mon, 27 Feb 2023 15:37:15 -0100 Message-Id: <20230227163718.62003-3-miguel.luis@oracle.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230227163718.62003-1-miguel.luis@oracle.com> References: <20230227163718.62003-1-miguel.luis@oracle.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.170.22 definitions=2023-02-27_13,2023-02-27_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 bulkscore=0 adultscore=0 mlxlogscore=999 suspectscore=0 phishscore=0 spamscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302270129 X-Proofpoint-GUID: NSXk4gj8142VNKu4Aw_ymwhIK0c6P9Lr X-Proofpoint-ORIG-GUID: NSXk4gj8142VNKu4Aw_ymwhIK0c6P9Lr Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.220.177.32; envelope-from=miguel.luis@oracle.com; helo=mx0b-00069f02.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @oracle.com) X-ZM-MESSAGEID: 1677515894891100001 Content-Type: text/plain; charset="utf-8" From: Haibo Xu Use the VGIC maintenance IRQ if VHE is requested. As per the ARM GIC Architecture Specification for GICv3 and GICv4 Arm strongly recommends that maintenance interrupts are configured to use INTID 25 matching the Server Base System Architecture (SBSA) recomendation. Ref: https://lore.kernel.org/qemu-devel/49a4944e2f148c56938380b981afe154b7a= 8b7ee.1617281290.git.haibo.xu@linaro.org/ Signed-off-by: Haibo Xu [Miguel Luis: avoid direct usage of helpers (_check_attr(); _access())] Signed-off-by: Miguel Luis --- hw/arm/virt.c | 5 +++++ hw/intc/arm_gicv3_common.c | 1 + hw/intc/arm_gicv3_kvm.c | 25 +++++++++++++++++++++++++ include/hw/intc/arm_gicv3_common.h | 1 + 4 files changed, 32 insertions(+) diff --git a/hw/arm/virt.c b/hw/arm/virt.c index b871350856..377181e009 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -759,6 +759,11 @@ static void create_gic(VirtMachineState *vms, MemoryRe= gion *mem) qdev_prop_set_uint32(vms->gic, "redist-region-count[1]", MIN(smp_cpus - redist0_count, redist1_capacity)); } + + if (kvm_irqchip_in_kernel()) { + qdev_prop_set_bit(vms->gic, "has-virtualization-extensions", + vms->virt); + } } else { if (!kvm_irqchip_in_kernel()) { qdev_prop_set_bit(vms->gic, "has-virtualization-extensions", diff --git a/hw/intc/arm_gicv3_common.c b/hw/intc/arm_gicv3_common.c index 351843db4a..e2a6ff1b49 100644 --- a/hw/intc/arm_gicv3_common.c +++ b/hw/intc/arm_gicv3_common.c @@ -563,6 +563,7 @@ static Property arm_gicv3_common_properties[] =3D { DEFINE_PROP_UINT32("revision", GICv3State, revision, 3), DEFINE_PROP_BOOL("has-lpi", GICv3State, lpi_enable, 0), DEFINE_PROP_BOOL("has-security-extensions", GICv3State, security_extn,= 0), + DEFINE_PROP_BOOL("has-virtualization-extensions", GICv3State, virt_ext= n, 0), /* * Compatibility property: force 8 bits of physical priority, even * if the CPU being emulated should have fewer. diff --git a/hw/intc/arm_gicv3_kvm.c b/hw/intc/arm_gicv3_kvm.c index 3ca643ecba..ce924753bb 100644 --- a/hw/intc/arm_gicv3_kvm.c +++ b/hw/intc/arm_gicv3_kvm.c @@ -22,6 +22,7 @@ #include "qemu/osdep.h" #include "qapi/error.h" #include "hw/intc/arm_gicv3_common.h" +#include "hw/arm/virt.h" #include "qemu/error-report.h" #include "qemu/module.h" #include "sysemu/kvm.h" @@ -803,6 +804,30 @@ static void kvm_arm_gicv3_realize(DeviceState *dev, Er= ror **errp) return; } =20 + + if (s->virt_extn) { + /* + * Arm strongly recommends that maintenance interrupts are configu= red + * to use INTID 25. For more information, see Server Base System + * Architecture (SBSA) + */ + uint32_t maint_irq =3D PPI(ARCH_GIC_MAINT_IRQ); + + struct kvm_device_attr kdevattr =3D { + .group =3D KVM_DEV_ARM_VGIC_GRP_MAINT_IRQ, + .addr =3D (uint64_t)&maint_irq + }; + + if (!kvm_device_ioctl(s->dev_fd, KVM_GET_DEVICE_ATTR, &kdevattr)) { + error_setg(errp, "VGICv3 setting maintenance IRQ are not " + "supported by this host kernel"); + return; + } + + kvm_device_ioctl(s->dev_fd, KVM_SET_DEVICE_ATTR, &kdevattr); + } + + gicv3_init_irqs_and_mmio(s, kvm_arm_gicv3_set_irq, NULL); =20 for (i =3D 0; i < s->num_cpu; i++) { diff --git a/include/hw/intc/arm_gicv3_common.h b/include/hw/intc/arm_gicv3= _common.h index ab5182a28a..91e1c1a45a 100644 --- a/include/hw/intc/arm_gicv3_common.h +++ b/include/hw/intc/arm_gicv3_common.h @@ -248,6 +248,7 @@ struct GICv3State { uint32_t revision; bool lpi_enable; bool security_extn; + bool virt_extn; bool force_8bit_prio; bool irq_reset_nonsecure; bool gicd_no_migration_shift_bug; 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Tsirkin" , Cornelia Huck , Paolo Bonzini , qemu-arm@nongnu.org, qemu-devel@nongnu.org, Haibo Xu , Andrew Jones , Marc Zyngier Cc: Miguel Luis Subject: [RFC PATCH 3/5] target/arm/kvm: add helper to detect EL2 when using KVM Date: Mon, 27 Feb 2023 15:37:16 -0100 Message-Id: <20230227163718.62003-4-miguel.luis@oracle.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230227163718.62003-1-miguel.luis@oracle.com> References: <20230227163718.62003-1-miguel.luis@oracle.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.170.22 definitions=2023-02-27_13,2023-02-27_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 bulkscore=0 adultscore=0 mlxlogscore=904 suspectscore=0 phishscore=0 spamscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302270129 X-Proofpoint-ORIG-GUID: G84v7qPVAEFCzmeivgg_drLPifMpKJfX X-Proofpoint-GUID: G84v7qPVAEFCzmeivgg_drLPifMpKJfX Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.220.177.32; envelope-from=miguel.luis@oracle.com; helo=mx0b-00069f02.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @oracle.com) X-ZM-MESSAGEID: 1677515902851100003 Content-Type: text/plain; charset="utf-8" From: Haibo Xu Introduce query support for KVM_CAP_ARM_EL2. Ref: https://lore.kernel.org/qemu-devel/65b8771bfecada08bf02c9cf87c2f0f9cdf= 943b3.1617281290.git.haibo.xu@linaro.org/ Signed-off-by: Haibo Xu Signed-off-by: Miguel Luis Reviewed-by: Richard Henderson --- target/arm/kvm64.c | 5 +++++ target/arm/kvm_arm.h | 12 ++++++++++++ 2 files changed, 17 insertions(+) diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c index 1197253d12..be8144a2b5 100644 --- a/target/arm/kvm64.c +++ b/target/arm/kvm64.c @@ -754,6 +754,11 @@ bool kvm_arm_aarch32_supported(void) return kvm_check_extension(kvm_state, KVM_CAP_ARM_EL1_32BIT); } =20 +bool kvm_arm_el2_supported(void) +{ + return kvm_check_extension(kvm_state, KVM_CAP_ARM_EL2); +} + bool kvm_arm_sve_supported(void) { return kvm_check_extension(kvm_state, KVM_CAP_ARM_SVE); diff --git a/target/arm/kvm_arm.h b/target/arm/kvm_arm.h index 99017b635c..86a0cb4308 100644 --- a/target/arm/kvm_arm.h +++ b/target/arm/kvm_arm.h @@ -305,6 +305,13 @@ bool kvm_arm_pmu_supported(void); */ bool kvm_arm_sve_supported(void); =20 +/** + * kvm_arm_el2_supported: + * + * Returns true if KVM can enable EL2 and false otherwise. + */ +bool kvm_arm_el2_supported(void); + /** * kvm_arm_get_max_vm_ipa_size: * @ms: Machine state handle @@ -395,6 +402,11 @@ static inline bool kvm_arm_steal_time_supported(void) return false; } =20 +static inline bool kvm_arm_el2_supported(void) +{ + return false; +} + /* * These functions should never actually be called without KVM support. */ --=20 2.39.2 From nobody Fri May 3 15:44:26 2024 Delivered-To: importer2@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer2=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=oracle.com ARC-Seal: i=1; a=rsa-sha256; t=1677515908; cv=none; d=zohomail.com; s=zohoarc; b=bzg/InwUtHu3nCCYNWBj2tuw0uq3AkwmmUDWJSIten21tIr3qiJavKk7sg1/iXIUFh1gMc/O90LqucgBl5suoAC0+BHPZHfrIEsyW+3hFoOFSitvyK89v0hG9RPFMgS9wDJONxF+XQlryExeFatc6G9ZdQJQ+igrJmPqmOujTzI= ARC-Message-Signature: i=1; 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Tsirkin" , Cornelia Huck , Paolo Bonzini , qemu-arm@nongnu.org, qemu-devel@nongnu.org, Haibo Xu , Andrew Jones , Marc Zyngier Cc: Miguel Luis Subject: [RFC PATCH 4/5] target/arm: enable feature ARM_FEATURE_EL2 if EL2 is supported Date: Mon, 27 Feb 2023 15:37:17 -0100 Message-Id: <20230227163718.62003-5-miguel.luis@oracle.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230227163718.62003-1-miguel.luis@oracle.com> References: <20230227163718.62003-1-miguel.luis@oracle.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.170.22 definitions=2023-02-27_13,2023-02-27_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 bulkscore=0 adultscore=0 mlxlogscore=848 suspectscore=0 phishscore=0 spamscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302270129 X-Proofpoint-GUID: cC2HwgQEuHnTm-r5vJdjVQCFKpTzDoOY X-Proofpoint-ORIG-GUID: cC2HwgQEuHnTm-r5vJdjVQCFKpTzDoOY Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.220.165.32; envelope-from=miguel.luis@oracle.com; helo=mx0a-00069f02.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @oracle.com) X-ZM-MESSAGEID: 1677515908858100002 Content-Type: text/plain; charset="utf-8" From: Haibo Xu KVM_CAP_ARM_EL2 must be supported by the cpu to enable ARM_FEATURE_EL2. EL2 bits on ID_AA64PFR0 state unsupported on the value 0b0000. Ref: https://lore.kernel.org/qemu-devel/b7c2626e6c720ccc43e57197dff3dac72d6= 13640.1616052890.git.haibo.xu@linaro.org/ Signed-off-by: Haibo Xu [Miguel Luis: use of ID_AA64PFR0 for cpu features] Signed-off-by: Miguel Luis --- target/arm/cpu.h | 2 +- target/arm/kvm64.c | 16 ++++++++++++++++ 2 files changed, 17 insertions(+), 1 deletion(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index 9aeed3c848..de2a88b43e 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -3961,7 +3961,7 @@ static inline bool isar_feature_aa64_aa32_el1(const A= RMISARegisters *id) =20 static inline bool isar_feature_aa64_aa32_el2(const ARMISARegisters *id) { - return FIELD_EX64(id->id_aa64pfr0, ID_AA64PFR0, EL2) >=3D 2; + return FIELD_EX64(id->id_aa64pfr0, ID_AA64PFR0, EL2) !=3D 0; } =20 static inline bool isar_feature_aa64_ras(const ARMISARegisters *id) diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c index be8144a2b5..f7ebd731aa 100644 --- a/target/arm/kvm64.c +++ b/target/arm/kvm64.c @@ -505,6 +505,7 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *= ahcf) */ int fdarray[3]; bool sve_supported; + bool el2_supported; bool pmu_supported =3D false; uint64_t features =3D 0; int err; @@ -535,6 +536,14 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures = *ahcf) init.features[0] |=3D 1 << KVM_ARM_VCPU_SVE; } =20 + /* + * Ask for EL2 if supported. + */ + el2_supported =3D kvm_arm_el2_supported(); + if (el2_supported) { + init.features[0] |=3D 1 << KVM_ARM_VCPU_HAS_EL2; + } + /* * Ask for Pointer Authentication if supported, so that we get * the unsanitized field values for AA64ISAR1_EL1. @@ -714,6 +723,10 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures = *ahcf) features |=3D 1ULL << ARM_FEATURE_PMU; features |=3D 1ULL << ARM_FEATURE_GENERIC_TIMER; =20 + if (el2_supported) { + features |=3D 1ULL << ARM_FEATURE_EL2; + } + ahcf->features =3D features; =20 return true; @@ -881,6 +894,9 @@ int kvm_arch_init_vcpu(CPUState *cs) assert(kvm_arm_sve_supported()); cpu->kvm_init_features[0] |=3D 1 << KVM_ARM_VCPU_SVE; } + if (cpu_isar_feature(aa64_aa32_el2, cpu)) { + cpu->kvm_init_features[0] |=3D 1 << KVM_ARM_VCPU_HAS_EL2; + } if (cpu_isar_feature(aa64_pauth, cpu)) { cpu->kvm_init_features[0] |=3D (1 << KVM_ARM_VCPU_PTRAUTH_ADDRESS | 1 << KVM_ARM_VCPU_PTRAUTH_GENERIC); --=20 2.39.2 From nobody Fri May 3 15:44:26 2024 Delivered-To: importer2@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer2=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=oracle.com ARC-Seal: i=1; a=rsa-sha256; t=1677515946; cv=none; d=zohomail.com; s=zohoarc; b=O8FYD4QZ+dGkrzDa8mHDLkg4nDJMwyWqBsBpmSeohGv55K69e7T9gS4le9eeb52lGSqO9SLzS1DoJkzuLu7wuTXjivgWif7weG9yaHHdOg8wgydGIxggttzWYL9zDd3kZNpTeXKxbWvM60mkhQFoyDN+blIi+2wc50JbkJBVGe4= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1677515946; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; 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Mon, 27 Feb 2023 16:37:39 GMT Received: from mlluis-mac.uk.oracle.com (dhcp-10-175-167-110.vpn.oracle.com [10.175.167.110]) by iadpaimrmta03.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTP id 3ny8s5sxr5-6; Mon, 27 Feb 2023 16:37:38 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=corp-2022-7-12; bh=DPCvqMvPGr7V9CaopBQymsI4DUZJ7DMryFxJNSsGiN0=; b=n5YvX+GdQ97oigmnQY1fuJ+/VI/mN28paW/eg77ToGDuPhZLcIVNrvbL+1N9nX4JOUMc 4Fxi2Rek5Q3CW6M7Aj2qNgG6od19/B5au4R543FvcmzOrsU/qqd9QGLZXQ4oW69EHK42 3bf/0LGi44K+TiUt0G5VqLDBHe24MC3snGZEEZvmOtQjVTiS/wYlEyjMnf+zySJJhtFS IbD8BVX+gRCo8Mg/9CITNKzfZSzjn80Yn4SOIyXYNH6OQa2T3+9239VJWg31IiDzMaE4 4y55sVgOvPAKf/6BrikQ/XTCIIB9667WhRlc5F//B8Ui2/RIemZxmWc8WhTClchkPJ74 Pw== From: Miguel Luis To: Peter Maydell , "Michael S . Tsirkin" , Cornelia Huck , Paolo Bonzini , qemu-arm@nongnu.org, qemu-devel@nongnu.org, Haibo Xu , Andrew Jones , Marc Zyngier Cc: Miguel Luis Subject: [RFC PATCH 5/5] arm/virt: provide virtualization extensions to the guest Date: Mon, 27 Feb 2023 15:37:18 -0100 Message-Id: <20230227163718.62003-6-miguel.luis@oracle.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230227163718.62003-1-miguel.luis@oracle.com> References: <20230227163718.62003-1-miguel.luis@oracle.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.170.22 definitions=2023-02-27_13,2023-02-27_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 bulkscore=0 adultscore=0 mlxlogscore=999 suspectscore=0 phishscore=0 spamscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302270129 X-Proofpoint-GUID: uYuUIqgWuiwxsgj6NLYdHGKFxoaKAUku X-Proofpoint-ORIG-GUID: uYuUIqgWuiwxsgj6NLYdHGKFxoaKAUku Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.220.177.32; envelope-from=miguel.luis@oracle.com; helo=mx0b-00069f02.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @oracle.com) X-ZM-MESSAGEID: 1677515947010100001 Content-Type: text/plain; charset="utf-8" From: Haibo Xu VHE enablement if host supports EL2. Ref: https://lore.kernel.org/qemu-devel/b7c2626e6c720ccc43e57197dff3dac72d6= 13640.1616052890.git.haibo.xu@linaro.org/ Signed-off-by: Haibo Xu Signed-off-by: Miguel Luis --- hw/arm/virt.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 377181e009..7103aecf3f 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -2093,7 +2093,8 @@ static void machvirt_init(MachineState *machine) exit(1); } =20 - if (vms->virt && (kvm_enabled() || hvf_enabled())) { + if (vms->virt && (kvm_enabled() || hvf_enabled()) + && !kvm_arm_el2_supported()) { error_report("mach-virt: %s does not support providing " "Virtualization extensions to the guest CPU", kvm_enabled() ? "KVM" : "HVF"); --=20 2.39.2