From: Yang Weijiang <weijiang.yang@intel.com>
To: seanjc@google.com, pbonzini@redhat.com, peterz@infradead.org,
john.allen@amd.com, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: rick.p.edgecombe@intel.com, weijiang.yang@intel.com,
Sean Christopherson <sean.j.christopherson@intel.com>
Subject: [PATCH v2 06/21] KVM:x86: Report XSS as to-be-saved if there are supported features
Date: Fri, 21 Apr 2023 09:46:00 -0400 [thread overview]
Message-ID: <20230421134615.62539-7-weijiang.yang@intel.com> (raw)
In-Reply-To: <20230421134615.62539-1-weijiang.yang@intel.com>
From: Sean Christopherson <sean.j.christopherson@intel.com>
Add MSR_IA32_XSS to the list of MSRs reported to userspace if
supported_xss is non-zero, i.e. KVM supports at least one XSS based
feature.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Yang Weijiang <weijiang.yang@intel.com>
---
arch/x86/kvm/x86.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index e7f78fe79b32..33a780fe820b 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1454,6 +1454,7 @@ static const u32 msrs_to_save_base[] = {
MSR_IA32_UMWAIT_CONTROL,
MSR_IA32_XFD, MSR_IA32_XFD_ERR,
+ MSR_IA32_XSS,
};
static const u32 msrs_to_save_pmu[] = {
--
2.27.0
next prev parent reply other threads:[~2023-04-21 16:52 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-21 13:45 [PATCH v2 00/21] Enable CET Virtualization Yang Weijiang
2023-04-21 13:45 ` [PATCH v2 01/21] x86/shstk: Add Kconfig option for shadow stack Yang Weijiang
2023-04-21 13:45 ` [PATCH v2 02/21] x86/cpufeatures: Add CPU feature flags for shadow stacks Yang Weijiang
2023-04-21 13:45 ` [PATCH v2 03/21] x86/cpufeatures: Enable CET CR4 bit for shadow stack Yang Weijiang
2023-04-21 13:45 ` [PATCH v2 04/21] x86/fpu/xstate: Introduce CET MSR and XSAVES supervisor states Yang Weijiang
2023-04-21 13:45 ` [PATCH v2 05/21] x86/fpu: Add helper for modifying xstate Yang Weijiang
2023-04-21 13:46 ` Yang Weijiang [this message]
2023-04-21 13:46 ` [PATCH v2 07/21] KVM:x86: Refresh CPUID on write to guest MSR_IA32_XSS Yang Weijiang
2023-04-24 1:38 ` Binbin Wu
2023-04-24 6:15 ` Yang, Weijiang
2023-04-21 13:46 ` [PATCH v2 08/21] KVM:x86: Init kvm_caps.supported_xss with supported feature bits Yang Weijiang
2023-04-21 13:46 ` [PATCH v2 09/21] KVM:x86: Load guest FPU state when accessing xsaves-managed MSRs Yang Weijiang
2023-04-27 3:46 ` Binbin Wu
2023-04-27 15:57 ` Yang, Weijiang
2023-04-21 13:46 ` [PATCH v2 10/21] KVM:x86: Add #CP support in guest exception classification Yang Weijiang
2023-04-28 6:09 ` Binbin Wu
2023-05-04 3:41 ` Yang, Weijiang
2023-05-04 5:36 ` Binbin Wu
2023-05-04 6:59 ` Yang, Weijiang
2023-04-21 13:46 ` [PATCH v2 11/21] KVM:VMX: Introduce CET VMCS fields and control bits Yang Weijiang
2023-05-05 2:18 ` Binbin Wu
2023-05-05 2:22 ` Binbin Wu
2023-05-05 7:07 ` Yang, Weijiang
2023-04-21 13:46 ` [PATCH v2 12/21] KVM:x86: Add fault checks for guest CR4.CET setting Yang Weijiang
2023-05-05 5:01 ` Binbin Wu
2023-05-05 7:24 ` Yang, Weijiang
2023-04-21 13:46 ` [PATCH v2 13/21] KVM:VMX: Emulate reads and writes to CET MSRs Yang Weijiang
2023-04-21 13:46 ` [PATCH v2 14/21] KVM:VMX: Add a synthetic MSR to allow userspace VMM to access GUEST_SSP Yang Weijiang
2023-05-03 17:08 ` Edgecombe, Rick P
2023-05-04 1:30 ` Yang, Weijiang
2023-04-21 13:46 ` [PATCH v2 15/21] KVM:x86: Report CET MSRs as to-be-saved if CET is supported Yang Weijiang
2023-04-21 13:46 ` [PATCH v2 16/21] KVM:x86: Save/Restore GUEST_SSP to/from SMM state save area Yang Weijiang
2023-04-21 13:46 ` [PATCH v2 17/21] KVM:VMX: Pass through user CET MSRs to the guest Yang Weijiang
2023-04-21 13:46 ` [PATCH v2 18/21] KVM:x86: Enable CET virtualization for VMX and advertise to userspace Yang Weijiang
2023-04-21 13:46 ` [PATCH v2 19/21] KVM:nVMX: Enable user CET support for nested VMX Yang Weijiang
2023-04-21 13:46 ` [PATCH v2 20/21] KVM:x86: Enable supervisor IBT support for guest Yang Weijiang
2023-04-21 13:46 ` [PATCH v2 21/21] KVM:x86: Support CET supervisor shadow stack MSR access Yang Weijiang
2023-05-03 17:06 ` Edgecombe, Rick P
2023-05-04 1:11 ` Yang, Weijiang
2023-05-03 17:07 ` Edgecombe, Rick P
2023-05-04 1:20 ` Yang, Weijiang
2023-05-04 4:17 ` Edgecombe, Rick P
2023-05-04 6:51 ` Yang, Weijiang
2023-04-21 21:54 ` [PATCH v2 00/21] Enable CET Virtualization Mike Rapoport
2023-04-23 5:37 ` Yang, Weijiang
2023-04-24 18:22 ` John Allen
2023-04-22 13:02 ` Peter Zijlstra
2023-04-23 6:12 ` Yang, Weijiang
2023-04-23 8:30 ` Binbin Wu
2023-04-24 6:12 ` Yang, Weijiang
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