linux-kernel - [PATCH 14/15] kvm/vmx/nested: Support CR4.KL in nested

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1622537274-146420-15-git-send-email-robert.hu@linux.intel.com>
Date:   Tue,  1 Jun 2021 16:47:53 +0800
From:   Robert Hoo <robert.hu@...ux.intel.com>
To:     pbonzini@...hat.com, seanjc@...gle.com, vkuznets@...hat.com,
        wanpengli@...cent.com, jmattson@...gle.com, joro@...tes.org,
        kvm@...r.kernel.org
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org,
        chang.seok.bae@...el.com, robert.hu@...el.com,
        robert.hu@...ux.intel.com
Subject: [PATCH 14/15] kvm/vmx/nested: Support CR4.KL in nested

Add CR4.KL in nested.msr.cr4_fixed1 when guest CPUID supports KeyLocker. So
that it can pass check when preparing vmcs02.

Signed-off-by: Robert Hoo <robert.hu@...ux.intel.com>
---
 arch/x86/kvm/vmx/vmx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 5b46d7b..070ba81 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -7440,6 +7440,7 @@ static void nested_vmx_cr_fixed1_bits_update(struct kvm_vcpu *vcpu)
 	cr4_fixed1_update(X86_CR4_PKE,        ecx, feature_bit(PKU));
 	cr4_fixed1_update(X86_CR4_UMIP,       ecx, feature_bit(UMIP));
 	cr4_fixed1_update(X86_CR4_LA57,       ecx, feature_bit(LA57));
+	cr4_fixed1_update(X86_CR4_KEYLOCKER,       ecx, feature_bit(KEYLOCKER));
 
 #undef cr4_fixed1_update
 }
-- 
1.8.3.1