Messages in this thread | | | Subject | Re: [PATCH] KVM: x86: don't expose syscall/sysret to intel 32-bit guest | From | Paolo Bonzini <> | Date | Thu, 19 Nov 2015 13:02:40 +0100 |
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On 19/11/2015 13:01, Wanpeng Li wrote: > > This is not correct. As far as I know, the SYSCALL bit is always > > present in CPUID, even if the machine is running in 32-bit mode; CPUID > > documentation (SDM Volume 2) explicitly documents bit 11 as "Bit 11: > > SYSCALL/SYSRET available in 64-bit mode". > > No, I try a 32-bit linux host kernel, cpuid tool shows that SYSCALL > bit is not set.
Ok, let me try...
Paolo
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