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From:   Yang Weijiang <weijiang.yang@intel.com>
To:     seanjc@google.com, pbonzini@redhat.com, peterz@infradead.org,
        john.allen@amd.com, kvm@vger.kernel.org,
        linux-kernel@vger.kernel.org
Cc:     rick.p.edgecombe@intel.com, weijiang.yang@intel.com,
        Sean Christopherson <sean.j.christopherson@intel.com>
Subject: [PATCH v2 06/21] KVM:x86: Report XSS as to-be-saved if there are supported features
Date:   Fri, 21 Apr 2023 09:46:00 -0400
Message-Id: <20230421134615.62539-7-weijiang.yang@intel.com>
In-Reply-To: <20230421134615.62539-1-weijiang.yang@intel.com>
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From: Sean Christopherson <sean.j.christopherson@intel.com>

Add MSR_IA32_XSS to the list of MSRs reported to userspace if
supported_xss is non-zero, i.e. KVM supports at least one XSS based
feature.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Yang Weijiang <weijiang.yang@intel.com>
---
 arch/x86/kvm/x86.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index e7f78fe79b32..33a780fe820b 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1454,6 +1454,7 @@ static const u32 msrs_to_save_base[] = {
 	MSR_IA32_UMWAIT_CONTROL,
 
 	MSR_IA32_XFD, MSR_IA32_XFD_ERR,
+	MSR_IA32_XSS,
 };
 
 static const u32 msrs_to_save_pmu[] = {
-- 
2.27.0