From: Jim Mattson <jmattson@google.com>
To: Manali Shukla <manali.shukla@amd.com>
Cc: Jim Mattson <jmattson@google.com>,
seanjc@google.com, pbonzini@redhat.com, mingo@redhat.com,
bp@alien8.de, kvm@vger.kernel.org, x86@kernel.org,
santosh.shukla@amd.com, nikunj.dadhania@amd.com,
Naveen.Rao@amd.com, dapeng1.mi@linux.intel.com,
ravi.bangoria@amd.com, peterz@infradead.org,
Sandipan.Das@amd.com, Yosry Ahmed <yosry@kernel.org>
Subject: Re: [PATCH v3 2/9] x86/cpufeatures: Add CPUID feature bit for VIBS in SVM/SEV guests
Date: Thu, 8 Oct 2026 10:28:40 -0700 [thread overview]
Message-ID: <20261008172843.680198-1-jmattson@google.com> (raw)
In-Reply-To: <20260310060022.15120-3-manali.shukla@amd.com>
On Tue, Mar 10, 2026 at 06:00:14AM +0000, Manali Shukla wrote:
> 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>
Reviewed-by: Jim Mattson <jmattson@google.com>
next prev parent reply other threads:[~2026-10-08 17:28 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-10 6:00 [PATCH v3 0/9] Implement support for IBS virtualization Manali Shukla
2026-03-10 6:00 ` [PATCH v3 1/9] perf/amd/ibs: Fix race condition in IBS Manali Shukla
2026-10-08 17:19 ` Jim Mattson
2026-03-10 6:00 ` [PATCH v3 2/9] x86/cpufeatures: Add CPUID feature bit for VIBS in SVM/SEV guests Manali Shukla
2026-10-08 17:28 ` Jim Mattson [this message]
2026-03-10 6:00 ` [PATCH v3 3/9] KVM: x86/cpuid: Add a KVM-only leaf for IBS capabilities Manali Shukla
2026-10-08 17:44 ` Jim Mattson
2026-03-10 6:00 ` [PATCH v3 4/9] KVM: x86: Extend CPUID range to include new leaf Manali Shukla
2026-10-08 17:59 ` Jim Mattson
2026-03-10 6:00 ` [PATCH v3 5/9] KVM: SVM: Extend VMCB area for virtualized IBS registers Manali Shukla
2026-10-08 18:01 ` Jim Mattson
2026-03-10 6:00 ` [PATCH v3 6/9] KVM: SVM: Add support for IBS Virtualization Manali Shukla
2026-10-08 19:19 ` Jim Mattson
2026-10-08 21:28 ` Jim Mattson
2026-03-10 6:00 ` [PATCH v3 7/9] perf/x86/amd: Enable VPMU passthrough capability for IBS PMU Manali Shukla
2026-10-08 19:32 ` Jim Mattson
2026-03-10 6:00 ` [PATCH v3 8/9] perf/x86/amd: Remove exclude_guest check from perf_ibs_init() Manali Shukla
2026-10-08 19:38 ` Jim Mattson
2026-03-10 6:00 ` [PATCH v3 9/9] KVM: SVM: Add newly added IBS capabilities and MSRs Manali Shukla
2026-10-08 21:03 ` Jim Mattson
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