Re: [Xen-devel] [PATCH v5 0/9] Improve non-"safe" MSR access failure handling

[Boris Ostrovsky]

On 04/02/2016 10:01 AM, Andy Lutomirski wrote:
> Andy Lutomirski (9):
>    x86/head: Pass a real pt_regs and trapnr to early_fixup_exception
>    x86/head: Move the early NMI fixup into C
>    x86/head: Move early exception panic code into early_fixup_exception
>    x86/traps: Enable all exception handler callbacks early
>    x86/paravirt: Add _safe to the read_msr and write_msr PV hooks
>    x86/msr: Carry on after a non-"safe" MSR access fails
>    x86/paravirt: Add paravirt_{read,write}_msr
>    x86/paravirt: Make "unsafe" MSR accesses unsafe even if PARAVIRT=y
>    x86/msr: Set the return value to zero when native_rdmsr_safe fails

With Xen (on top of eb1af3b):

Tested-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>

-boris