[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] x86: machine check exception handling
> 3. Most contentious, I'm sure: removed VMX changes that would keep >interrupts disabled across NMI/MCE. The reason is simply that SVM does not >bother with this. If there is a requirement that NMI/MCE be called with >particular constraints on EFLAGS, then we should make that clear and fix up >both VMX and SVM in a separate patch. The pain of this is that it would >probably require extra checks on critical vmexit paths. Is it *really* that >bad for #MC to get interrupted? Yes, I think it is bad - the machine is known to be a in bad condition already, and by allowing external interrupts you make the situation even worse. Consequently I think SVM should be fixed to only conditionally enable interrupts, just like VMX does. Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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