[Xen-changelog] [xen stable-4.6] nested vmx: intercept guest rdmsr for MSR_IA32_VMX_VMFUNC

[patchbot@xxxxxxx]

commit 6fd1c8eca24b0c8d477ed3e743c6e2c0ef22c9a1
Author:     Euan Harris <euan.harris@xxxxxxxxxx>
AuthorDate: Fri Aug 5 13:46:02 2016 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Aug 5 13:46:02 2016 +0200

    nested vmx: intercept guest rdmsr for MSR_IA32_VMX_VMFUNC
    
    Guest reads of MSR_IA32_VMX_VMFUNC should be handled by
    the logic in vmx_msr_read_intercept().   Otherwise a guest
    can read the raw host value of this MSR, even if nested
    vmx is disabled.
    
    Signed-off-by: Euan Harris <euan.harris@xxxxxxxxxx>
    Acked-by: Kevin Tian <kevin.tian@xxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    master commit: 6439d23319986d37a6ea843c98b329218c3ac231
    master date: 2016-06-08 14:14:33 +0200
---
 xen/arch/x86/hvm/vmx/vmx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c
index df8198f..67f3a3b 100644
--- a/xen/arch/x86/hvm/vmx/vmx.c
+++ b/xen/arch/x86/hvm/vmx/vmx.c
@@ -2305,7 +2305,7 @@ static int vmx_msr_read_intercept(unsigned int msr, 
uint64_t *msr_content)
         __vmread(GUEST_IA32_DEBUGCTL, msr_content);
         break;
     case IA32_FEATURE_CONTROL_MSR:
-    case MSR_IA32_VMX_BASIC...MSR_IA32_VMX_TRUE_ENTRY_CTLS:
+    case MSR_IA32_VMX_BASIC...MSR_IA32_VMX_VMFUNC:
         if ( !nvmx_msr_read_intercept(msr, msr_content) )
             goto gp_fault;
         break;
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.6

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