linux-kernel - [PATCH v2 07/15] KVM: VMX: Support passthrough of architectural LBRs

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Date:   Thu, 24 Nov 2022 23:05:56 -0500
From:   Yang Weijiang <weijiang.yang@...el.com>
To:     seanjc@...gle.com, pbonzini@...hat.com, jmattson@...gle.com,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     like.xu.linux@...il.com, kan.liang@...ux.intel.com,
        wei.w.wang@...el.com, weijiang.yang@...el.com
Subject: [PATCH v2 07/15] KVM: VMX: Support passthrough of architectural LBRs

From: Paolo Bonzini <pbonzini@...hat.com>

MSR_ARCH_LBR_* can be pointed to by records->from, records->to and
records->info, so list them in is_valid_passthrough_msr.

Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>
Signed-off-by: Yang Weijiang <weijiang.yang@...el.com>
---
 arch/x86/kvm/vmx/vmx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 1ae2efc29546..9bd52ad3bbf4 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -638,6 +638,9 @@ static bool is_valid_passthrough_msr(u32 msr)
 	case MSR_LBR_NHM_TO ... MSR_LBR_NHM_TO + 31:
 	case MSR_LBR_CORE_FROM ... MSR_LBR_CORE_FROM + 8:
 	case MSR_LBR_CORE_TO ... MSR_LBR_CORE_TO + 8:
+	case MSR_ARCH_LBR_FROM_0 ... MSR_ARCH_LBR_FROM_0 + 31:
+	case MSR_ARCH_LBR_TO_0 ... MSR_ARCH_LBR_TO_0 + 31:
+	case MSR_ARCH_LBR_INFO_0 ... MSR_ARCH_LBR_INFO_0 + 31:
 		/* LBR MSRs. These are handled in vmx_update_intercept_for_lbr_msrs() */
 		return true;
 	}
-- 
2.27.0