Messages in this thread | | | Subject | Re: [PATCH] KVM: x86: don't expose syscall/sysret to intel 32-bit guest | From | Paolo Bonzini <> | Date | Wed, 25 Nov 2015 14:27:40 +0100 |
| |
On 25/11/2015 13:45, Wanpeng Li wrote: > 2015-11-19 19:05 GMT+08:00 Paolo Bonzini <pbonzini@redhat.com>: >> >> 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
| |