[Xen-devel] [PATCH] VMX: PLATFORM_INFO MSR is r/o

["Jan Beulich" <JBeulich@xxxxxxxx>]

Therefore all write attempts should produce #GP, just like on real
hardware.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

--- a/xen/arch/x86/hvm/vmx/vmx.c
+++ b/xen/arch/x86/hvm/vmx/vmx.c
@@ -3138,10 +3138,7 @@ static int vmx_msr_write_intercept(unsig
         break;
 
     case MSR_INTEL_PLATFORM_INFO:
-        if ( msr_content ||
-             rdmsr_safe(MSR_INTEL_PLATFORM_INFO, msr_content) )
-            goto gp_fault;
-        break;
+        goto gp_fault;
 
     case MSR_INTEL_MISC_FEATURES_ENABLES:
     {




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