Re: [PATCH] KVM: x86: don't expose syscall/sysret to intel 32-bit guest

[Paolo Bonzini]

On 25/11/2015 13:45, Wanpeng Li wrote:
> 2015-11-19 19:05 GMT+08:00 Paolo Bonzini <pbonzini@xxxxxxxxxx>:
>>
>> 1) Clear F(SYSCALL) in kvm_update_cpuid, like you are doing here but
>> only if F(LM) is already clear (in addition to the vendor being Intel).
> 
> It seems that F(LM) is always set in the case of qemu-system-x86_64 w/
> 32-bit guest, vmware also exposes LM bit to 32 bit guest(however it
> doesn't expose syscall/sysret)

Does it expose the SYSCALL bit?

Paolo
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