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client-ip=165.204.84.17; helo=satlexmb07.amd.com; pr=C From: Alejandro Vallejo To: CC: Alejandro Vallejo , Jan Beulich , Andrew Cooper , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= Subject: [PATCH 3/4] x86/hvm: Remove cross-vendor checks from MSR handlers. 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Signed-off-by: Alejandro Vallejo Reviewed-by: Teddy Astie --- xen/arch/x86/msr.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/xen/arch/x86/msr.c b/xen/arch/x86/msr.c index ad75a2e108..c9cc4f0692 100644 --- a/xen/arch/x86/msr.c +++ b/xen/arch/x86/msr.c @@ -169,9 +169,9 @@ int guest_rdmsr(struct vcpu *v, uint32_t msr, uint64_t = *val) break; =20 case MSR_IA32_PLATFORM_ID: - if ( !(cp->x86_vendor & X86_VENDOR_INTEL) || - !(boot_cpu_data.x86_vendor & X86_VENDOR_INTEL) ) + if ( cp->x86_vendor !=3D X86_VENDOR_INTEL ) goto gp_fault; + rdmsrl(MSR_IA32_PLATFORM_ID, *val); break; =20 @@ -190,8 +190,6 @@ int guest_rdmsr(struct vcpu *v, uint32_t msr, uint64_t = *val) * the guest. */ if ( !(cp->x86_vendor & (X86_VENDOR_INTEL | X86_VENDOR_AMD)) || - !(boot_cpu_data.x86_vendor & - (X86_VENDOR_INTEL | X86_VENDOR_AMD)) || rdmsr_safe(MSR_AMD_PATCHLEVEL, val) ) goto gp_fault; break; --=20 2.43.0