From: Manali Shukla <manali.shukla@amd.com>
To: <kvm@vger.kernel.org>, <seanjc@google.com>
Cc: <linux-doc@vger.kernel.org>, <linux-perf-users@vger.kernel.org>,
<x86@kernel.org>, <pbonzini@redhat.com>, <peterz@infradead.org>,
<bp@alien8.de>, <santosh.shukla@amd.com>, <ravi.bangoria@amd.com>,
<thomas.lendacky@amd.com>, <nikunj@amd.com>,
<manali.shukla@amd.com>
Subject: [PATCH 04/13] x86/cpufeatures: Add CPUID feature bit for virtualized IBS
Date: Mon, 4 Sep 2023 09:53:38 +0000 [thread overview]
Message-ID: <20230904095347.14994-5-manali.shukla@amd.com> (raw)
In-Reply-To: <20230904095347.14994-1-manali.shukla@amd.com>
From: Santosh Shukla <santosh.shukla@amd.com>
The virtualized IBS (VIBS) feature allows the guest to collect IBS
samples without exiting the guest.
Presence of the VIBS feature is indicated via CPUID function
0x8000000A_EDX[26].
Signed-off-by: Santosh Shukla <santosh.shukla@amd.com>
Signed-off-by: Manali Shukla <manali.shukla@amd.com>
---
arch/x86/include/asm/cpufeatures.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index 2e4624fa6e4e..8f92fa6d8319 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -374,6 +374,7 @@
#define X86_FEATURE_X2AVIC (15*32+18) /* Virtual x2apic */
#define X86_FEATURE_V_SPEC_CTRL (15*32+20) /* Virtual SPEC_CTRL */
#define X86_FEATURE_VNMI (15*32+25) /* Virtual NMI */
+#define X86_FEATURE_VIBS (15*32+26) /* "" Virtual IBS */
#define X86_FEATURE_EXTLVT (15*32+27) /* "" EXTLVT */
#define X86_FEATURE_SVME_ADDR_CHK (15*32+28) /* "" SVME addr check */
--
2.34.1
next prev parent reply other threads:[~2023-09-04 9:54 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-04 9:53 [PATCH 00/13] Implement support for IBS virtualization Manali Shukla
2023-09-04 9:53 ` [PATCH 01/13] KVM: Add KVM_GET_LAPIC_W_EXTAPIC and KVM_SET_LAPIC_W_EXTAPIC for extapic Manali Shukla
2023-09-12 1:47 ` Chao Gao
2023-09-04 9:53 ` [PATCH 02/13] x86/cpufeatures: Add CPUID feature bit for Extended LVT Manali Shukla
2023-09-04 9:53 ` [PATCH 03/13] KVM: x86: Add emulation support for Extented LVT registers Manali Shukla
2023-09-12 2:36 ` Chao Gao
2023-09-04 9:53 ` Manali Shukla [this message]
2023-09-04 9:53 ` [PATCH 05/13] KVM: x86/cpuid: Add a KVM-only leaf for IBS capabilities Manali Shukla
2023-09-04 9:53 ` [PATCH 06/13] KVM: x86: Extend CPUID range to include new leaf Manali Shukla
2023-09-12 2:46 ` Chao Gao
2023-09-04 9:53 ` [PATCH 07/13] KVM: SVM: Extend VMCB area for virtualized IBS registers Manali Shukla
2023-09-12 2:50 ` Chao Gao
2023-09-04 9:53 ` [PATCH 08/13] perf/x86/amd: Add framework to save/restore host IBS state Manali Shukla
2023-09-05 14:54 ` Tom Lendacky
2023-09-04 9:53 ` [PATCH 09/13] KVM: SVM: add support for IBS virtualization for non SEV-ES guests Manali Shukla
2023-09-05 15:30 ` Tom Lendacky
2023-09-06 1:51 ` Alexey Kardashevskiy
2023-09-12 3:09 ` Chao Gao
2023-09-04 9:53 ` [PATCH 10/13] x86/cpufeatures: Add CPUID feature bit for VIBS in SEV-ES guest Manali Shukla
2023-09-04 9:53 ` [PATCH 11/13] KVM: SVM: Add support for IBS virtualization for SEV-ES guests Manali Shukla
2023-09-05 15:43 ` Tom Lendacky
2023-09-04 9:53 ` [PATCH 12/13] KVM: SVM: Enable IBS virtualization on non SEV-ES and " Manali Shukla
2023-09-05 16:00 ` Tom Lendacky
2023-09-12 3:30 ` Chao Gao
2023-09-04 9:53 ` [PATCH 13/13] KVM: x86: nSVM: Implement support for nested IBS virtualization Manali Shukla
2023-09-05 15:47 ` [PATCH 00/13] Implement support for " Peter Zijlstra
2023-09-06 15:38 ` Manali Shukla
2023-09-06 19:56 ` Peter Zijlstra
2023-09-07 15:49 ` Manali Shukla
2023-09-08 13:31 ` Peter Zijlstra
2023-09-11 12:32 ` Manali Shukla
2023-09-28 11:18 ` Manali Shukla
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