On Wed, 2018-04-11 at 09:24 +0800, Wanpeng Li wrote:
> 2018-04-10 20:15 GMT+08:00 KarimAllah Ahmed :
> >
> > The VMX-preemption timer is used by KVM as a way to set deadlines for the
> > guest (i.e. timer emulation). That was safe till very recently when
> > capability
On Wed, 2018-04-11 at 09:24 +0800, Wanpeng Li wrote:
> 2018-04-10 20:15 GMT+08:00 KarimAllah Ahmed :
> >
> > The VMX-preemption timer is used by KVM as a way to set deadlines for the
> > guest (i.e. timer emulation). That was safe till very recently when
> > capability KVM_X86_DISABLE_EXITS_MWAIT
2018-04-10 20:15 GMT+08:00 KarimAllah Ahmed :
> The VMX-preemption timer is used by KVM as a way to set deadlines for the
> guest (i.e. timer emulation). That was safe till very recently when
> capability KVM_X86_DISABLE_EXITS_MWAIT to disable intercepting MWAIT was
>
2018-04-10 20:15 GMT+08:00 KarimAllah Ahmed :
> The VMX-preemption timer is used by KVM as a way to set deadlines for the
> guest (i.e. timer emulation). That was safe till very recently when
> capability KVM_X86_DISABLE_EXITS_MWAIT to disable intercepting MWAIT was
> introduced. According to
On Tue, Apr 10, 2018 at 02:15:46PM +0200, KarimAllah Ahmed wrote:
> The VMX-preemption timer is used by KVM as a way to set deadlines for the
> guest (i.e. timer emulation). That was safe till very recently when
> capability KVM_X86_DISABLE_EXITS_MWAIT to disable intercepting MWAIT was
>
On Tue, Apr 10, 2018 at 02:15:46PM +0200, KarimAllah Ahmed wrote:
> The VMX-preemption timer is used by KVM as a way to set deadlines for the
> guest (i.e. timer emulation). That was safe till very recently when
> capability KVM_X86_DISABLE_EXITS_MWAIT to disable intercepting MWAIT was
>
On 10/04/2018 14:15, KarimAllah Ahmed wrote:
> So disable the VMX-preemption timer if MWAIT is exposed to the guest!
>
> Cc: Paolo Bonzini
> Cc: Radim Krčmář
> Cc: Thomas Gleixner
> Cc: Ingo Molnar
> Cc: H. Peter
On 10/04/2018 14:15, KarimAllah Ahmed wrote:
> So disable the VMX-preemption timer if MWAIT is exposed to the guest!
>
> Cc: Paolo Bonzini
> Cc: Radim Krčmář
> Cc: Thomas Gleixner
> Cc: Ingo Molnar
> Cc: H. Peter Anvin
> Cc: x...@kernel.org
> Cc: k...@vger.kernel.org
> Cc:
The VMX-preemption timer is used by KVM as a way to set deadlines for the
guest (i.e. timer emulation). That was safe till very recently when
capability KVM_X86_DISABLE_EXITS_MWAIT to disable intercepting MWAIT was
introduced. According to Intel SDM 25.5.1:
"""
The VMX-preemption timer operates
The VMX-preemption timer is used by KVM as a way to set deadlines for the
guest (i.e. timer emulation). That was safe till very recently when
capability KVM_X86_DISABLE_EXITS_MWAIT to disable intercepting MWAIT was
introduced. According to Intel SDM 25.5.1:
"""
The VMX-preemption timer operates
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