From: Sean Christopherson <seanjc@google.com>
To: Yosry Ahmed <yosry@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Jim Mattson <jmattson@google.com>,
Dapeng Mi <dapeng1.mi@linux.intel.com>,
Sandipan Das <sandipan.das@amd.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v6 08/16] KVM: x86/pmu: Add support for KVM_X86_PMU_OP_OPTIONAL_RET0
Date: Tue, 26 May 2026 16:31:01 -0700 [thread overview]
Message-ID: <ahYtNSL2LDhZx_kG@google.com> (raw)
In-Reply-To: <20260506015733.1671124-9-yosry@kernel.org>
On Wed, May 06, 2026, Yosry Ahmed wrote:
> Add definitions for KVM_X86_PMU_OP_OPTIONAL_RET0() to resolve to
> __static_call_return0, similar to KVM_X86_OP_OPTIONAL_RET0(). Move the
> definition of kvm_pmu_call() to pmu.h, and add declarations for the
> static PMU calls in the header to allow making callbacks from the header
> in following changes.
>
> Suggested-by: Sean Christopherson <seanjc@google.com>
> Signed-off-by: Yosry Ahmed <yosry@kernel.org>
> ---
> arch/x86/include/asm/kvm-x86-pmu-ops.h | 4 +++-
> arch/x86/include/asm/kvm_host.h | 1 -
> arch/x86/kvm/pmu.c | 4 ++++
> arch/x86/kvm/pmu.h | 8 ++++++++
> 4 files changed, 15 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/include/asm/kvm-x86-pmu-ops.h b/arch/x86/include/asm/kvm-x86-pmu-ops.h
> index d5452b3433b7d..03ed2c917bb56 100644
> --- a/arch/x86/include/asm/kvm-x86-pmu-ops.h
> +++ b/arch/x86/include/asm/kvm-x86-pmu-ops.h
> @@ -1,6 +1,7 @@
> /* SPDX-License-Identifier: GPL-2.0 */
> #if !defined(KVM_X86_PMU_OP) || \
> - !defined(KVM_X86_PMU_OP_OPTIONAL)
> + !defined(KVM_X86_PMU_OP_OPTIONAL) || \
> + !defined(KVM_X86_PMU_OP_OPTIONAL_RET0)
Align indentation.
next prev parent reply other threads:[~2026-05-26 23:31 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-06 1:57 [PATCH v6 00/16] Yosry Ahmed
2026-05-06 1:57 ` [PATCH v6 01/16] KVM: nSVM: Stop leaking single-stepping on VMRUN into L2 Yosry Ahmed
2026-05-22 23:10 ` Sean Christopherson
2026-05-22 23:45 ` Yosry Ahmed
2026-05-22 23:45 ` Yosry Ahmed
2026-05-26 19:11 ` Sean Christopherson
2026-05-26 20:18 ` Yosry Ahmed
2026-05-06 1:57 ` [PATCH v6 02/16] KVM: nSVM: Bail early out of VMRUN emulation if advancing RIP fails Yosry Ahmed
2026-05-06 1:57 ` [PATCH v6 03/16] KVM: nSVM: Move VMRUN instruction retirement after entering guest mode Yosry Ahmed
2026-05-06 1:57 ` [PATCH v6 04/16] KVM: x86: Move enable_pmu/enable_mediated_pmu to pmu.h and pmu.c Yosry Ahmed
2026-05-06 1:57 ` [PATCH v6 05/16] KVM: x86/pmu: Rename reprogram_counters() to clarify usage Yosry Ahmed
2026-05-06 1:57 ` [PATCH v6 06/16] KVM: x86/pmu: Do a single atomic OR when reprogramming counters Yosry Ahmed
2026-05-06 1:57 ` [PATCH v6 07/16] KVM: x86/pmu: Check mediated PMU counter enablement before event filters Yosry Ahmed
2026-05-06 1:57 ` [PATCH v6 08/16] KVM: x86/pmu: Add support for KVM_X86_PMU_OP_OPTIONAL_RET0 Yosry Ahmed
2026-05-26 23:31 ` Sean Christopherson [this message]
2026-05-27 23:20 ` Yosry Ahmed
2026-05-06 1:57 ` [PATCH v6 09/16] KVM: x86/pmu: Disable counters based on Host-Only/Guest-Only bits in SVM Yosry Ahmed
2026-05-06 1:57 ` [PATCH v6 10/16] KVM: x86/pmu: Track mediated PMU counters with mode-specific enables Yosry Ahmed
2026-05-06 1:57 ` [PATCH v6 11/16] KVM: x86/pmu: Reprogram Host/Guest-Only counters on nested transitions Yosry Ahmed
2026-05-06 1:57 ` [PATCH v6 12/16] KVM: x86/pmu: Allow Host-Only/Guest-Only bits with nSVM and mediated PMU Yosry Ahmed
2026-05-06 1:57 ` [PATCH v6 13/16] KVM: selftests: Refactor allocating guest stack into a helper Yosry Ahmed
2026-05-06 1:57 ` [PATCH v6 14/16] KVM: selftests: Allocate a dedicated guest page for x86 L2 guest stack Yosry Ahmed
2026-05-06 1:57 ` [PATCH v6 15/16] KVM: selftests: Drop L1-provided stacks for L2 guests on x86 Yosry Ahmed
2026-05-06 1:57 ` [PATCH v6 16/16] KVM: selftests: Add svm_pmu_host_guest_test for Host-Only/Guest-Only bits Yosry Ahmed
2026-05-06 2:00 ` [PATCH v6 00/16] Yosry Ahmed
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