Re: [PATCH v2 3/3] KVM: VMX: enable guest access to LMCE related MSRs

2016-06-20 Thread Paolo Bonzini
On 20/06/2016 03:49, Haozhong Zhang wrote: > Thanks for the explanation! > > If we disable LMCE in QEMU by default (even for -cpu host), will it > still be a problem? That is, > > - pc-2.7 can continue to run on old kernels unless users explicitly > require LMCE > > - existing libvirt VM con

Re: [PATCH v2 3/3] KVM: VMX: enable guest access to LMCE related MSRs

2016-06-19 Thread Haozhong Zhang
On 06/17/16 14:15, Eduardo Habkost wrote: > On Fri, Jun 17, 2016 at 09:11:16AM +0800, Haozhong Zhang wrote: > > On 06/16/16 11:55, Eduardo Habkost wrote: > > > On Thu, Jun 16, 2016 at 12:04:50PM +0200, Paolo Bonzini wrote: > > > > On 16/06/2016 08:05, Haozhong Zhang wrote: > > > > > From: Ashok Raj

Re: [PATCH v2 3/3] KVM: VMX: enable guest access to LMCE related MSRs

2016-06-17 Thread Eduardo Habkost
On Fri, Jun 17, 2016 at 09:11:16AM +0800, Haozhong Zhang wrote: > On 06/16/16 11:55, Eduardo Habkost wrote: > > On Thu, Jun 16, 2016 at 12:04:50PM +0200, Paolo Bonzini wrote: > > > On 16/06/2016 08:05, Haozhong Zhang wrote: > > > > From: Ashok Raj > > > > > > > > On Intel platforms, this patch ad

Re: [PATCH v2 3/3] KVM: VMX: enable guest access to LMCE related MSRs

2016-06-16 Thread Haozhong Zhang
On 06/16/16 11:55, Eduardo Habkost wrote: > On Thu, Jun 16, 2016 at 12:04:50PM +0200, Paolo Bonzini wrote: > > On 16/06/2016 08:05, Haozhong Zhang wrote: > > > From: Ashok Raj > > > > > > On Intel platforms, this patch adds LMCE to KVM MCE supported > > > capabilities and handles guest access to

Re: [PATCH v2 3/3] KVM: VMX: enable guest access to LMCE related MSRs

2016-06-16 Thread Eduardo Habkost
On Thu, Jun 16, 2016 at 12:04:50PM +0200, Paolo Bonzini wrote: > On 16/06/2016 08:05, Haozhong Zhang wrote: > > From: Ashok Raj > > > > On Intel platforms, this patch adds LMCE to KVM MCE supported > > capabilities and handles guest access to LMCE related MSRs. > > > > Signed-off-by: Ashok Raj

Re: [PATCH v2 3/3] KVM: VMX: enable guest access to LMCE related MSRs

2016-06-16 Thread Haozhong Zhang
On 06/16/16 12:04, Paolo Bonzini wrote: > > > On 16/06/2016 08:05, Haozhong Zhang wrote: > > From: Ashok Raj > > > > On Intel platforms, this patch adds LMCE to KVM MCE supported > > capabilities and handles guest access to LMCE related MSRs. > > > > Signed-off-by: Ashok Raj > > [Haozhong: ma

Re: [PATCH v2 3/3] KVM: VMX: enable guest access to LMCE related MSRs

2016-06-16 Thread Paolo Bonzini
On 16/06/2016 08:05, Haozhong Zhang wrote: > From: Ashok Raj > > On Intel platforms, this patch adds LMCE to KVM MCE supported > capabilities and handles guest access to LMCE related MSRs. > > Signed-off-by: Ashok Raj > [Haozhong: macro KVM_MCE_CAP_SUPPORTED => variable kvm_mce_cap_supported

[PATCH v2 3/3] KVM: VMX: enable guest access to LMCE related MSRs

2016-06-15 Thread Haozhong Zhang
From: Ashok Raj On Intel platforms, this patch adds LMCE to KVM MCE supported capabilities and handles guest access to LMCE related MSRs. Signed-off-by: Ashok Raj [Haozhong: macro KVM_MCE_CAP_SUPPORTED => variable kvm_mce_cap_supported Only enable LMCE on Intel platform Ch