linux-kernel - [RFC PATCH 25/41] KVM: x86/pmu: Introduce macro PMU_CAP_PERF

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Date: Fri, 26 Jan 2024 16:54:28 +0800
From: Xiong Zhang <xiong.y.zhang@...ux.intel.com>
To: seanjc@...gle.com,
	pbonzini@...hat.com,
	peterz@...radead.org,
	mizhang@...gle.com,
	kan.liang@...el.com,
	zhenyuw@...ux.intel.com,
	dapeng1.mi@...ux.intel.com,
	jmattson@...gle.com
Cc: kvm@...r.kernel.org,
	linux-perf-users@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	zhiyuan.lv@...el.com,
	eranian@...gle.com,
	irogers@...gle.com,
	samantha.alt@...el.com,
	like.xu.linux@...il.com,
	chao.gao@...el.com,
	xiong.y.zhang@...ux.intel.com
Subject: [RFC PATCH 25/41] KVM: x86/pmu: Introduce macro PMU_CAP_PERF_METRICS

From: Dapeng Mi <dapeng1.mi@...ux.intel.com>

Define macro PMU_CAP_PERF_METRICS to represent bit[15] of
MSR_IA32_PERF_CAPABILITIES MSR. This bit is used to represent whether
perf metrics feature is enabled.

Signed-off-by: Dapeng Mi <dapeng1.mi@...ux.intel.com>
---
 arch/x86/kvm/vmx/capabilities.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kvm/vmx/capabilities.h b/arch/x86/kvm/vmx/capabilities.h
index 41a4533f9989..d8317552b634 100644
--- a/arch/x86/kvm/vmx/capabilities.h
+++ b/arch/x86/kvm/vmx/capabilities.h
@@ -22,6 +22,7 @@ extern int __read_mostly pt_mode;
 #define PT_MODE_HOST_GUEST	1
 
 #define PMU_CAP_FW_WRITES	(1ULL << 13)
+#define PMU_CAP_PERF_METRICS	BIT_ULL(15)
 #define PMU_CAP_LBR_FMT		0x3f
 
 struct nested_vmx_msrs {
-- 
2.34.1