Messages in this thread |  | | | Date | Sun, 19 Apr 2009 11:39:16 +0300 | | From | Avi Kivity <> | | Subject | Re: [PATCH -v2] Add MCE support to KVM |
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Anthony Liguori wrote: > Huang Ying wrote: >> The related MSRs are emulated. MCE capability is exported via >> extension KVM_CAP_MCE and ioctl KVM_X86_GET_MCE_CAP_SUPPORTED. A new >> vcpu ioctl command KVM_X86_SETUP_MCE is used to setup MCE emulation >> such as the mcg_cap. MCE is injected via vcpu ioctl command >> KVM_X86_SET_MCE. Extended machine-check state (MCG_EXT_P) and CMCI are >> not simulated. >> > > Maybe I'm missing something, but couldn't this be implemented entirely > within userspace? There's nothing VT/SVM specific about this. If the > issue is setting these MSRs from userspace via KVM_SET_MSRS isn't > enough, perhaps we should add userspace MSR handling. >
You also need to inject the MCE.
-- Do not meddle in the internals of kernels, for they are subtle and quick to panic.
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