Messages in this thread Patch in this message | | | From | Vitaly Kuznetsov <> | Subject | [PATCH RFC 1/3] x86/kvm/vmx: read MSR_FS_BASE from current->thread | Date | Fri, 2 Mar 2018 11:55:01 +0100 |
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vmx_save_host_state() is only called from kvm_arch_vcpu_ioctl_run() so the context is pretty well defined and MSR_FS_BASE should always be equal to current->thread.fsbase.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> --- arch/x86/kvm/vmx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index cab6ea1f8be5..ddefb7aeb96d 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2157,7 +2157,7 @@ static void vmx_save_host_state(struct kvm_vcpu *vcpu) #endif #ifdef CONFIG_X86_64 - vmcs_writel(HOST_FS_BASE, read_msr(MSR_FS_BASE)); + vmcs_writel(HOST_FS_BASE, current->thread.fsbase); vmcs_writel(HOST_GS_BASE, read_msr(MSR_GS_BASE)); #else vmcs_writel(HOST_FS_BASE, segment_base(vmx->host_state.fs_sel)); -- 2.14.3
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