Re: [Xen-devel] [PATCH 06/10] nested vmx: enable IA32E mode while do VM entry

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 04.12.12 at 06:53, Dongxiao Xu <dongxiao.xu@xxxxxxxxx> wrote:

How did things work without this, or if it worked, what does this fix?

Jan

> Signed-off-by: Dongxiao Xu <dongxiao.xu@xxxxxxxxx>
> ---
>  xen/arch/x86/hvm/vmx/vvmx.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/xen/arch/x86/hvm/vmx/vvmx.c b/xen/arch/x86/hvm/vmx/vvmx.c
> index 0ac78af..1304636 100644
> --- a/xen/arch/x86/hvm/vmx/vvmx.c
> +++ b/xen/arch/x86/hvm/vmx/vvmx.c
> @@ -1388,7 +1388,8 @@ int nvmx_msr_read_intercept(unsigned int msr, u64 
> *msr_content)
>              tmp = 0x11fb;
>          data = VM_ENTRY_LOAD_GUEST_PAT |
>                 VM_ENTRY_LOAD_GUEST_EFER |
> -               VM_ENTRY_LOAD_PERF_GLOBAL_CTRL;
> +               VM_ENTRY_LOAD_PERF_GLOBAL_CTRL |
> +               VM_ENTRY_IA32E_MODE;
>          data = ((data | tmp) << 32) | tmp;
>          break;
>  
> -- 
> 1.7.1
> 
> 
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