Re: [PATCH v6 1/2] kvm: x86: Allow userspace to handle emulation errors

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On 23/06/21 19:44, Aaron Lewis wrote:
On Thu, Jun 3, 2021 at 1:35 PM Jim Mattson <jmattson@xxxxxxxxxx> wrote:

On Mon, May 10, 2021 at 7:48 AM Aaron Lewis <aaronlewis@xxxxxxxxxx> wrote:

Add a fallback mechanism to the in-kernel instruction emulator that
allows userspace the opportunity to process an instruction the emulator
was unable to.  When the in-kernel instruction emulator fails to process
an instruction it will either inject a #UD into the guest or exit to
userspace with exit reason KVM_INTERNAL_ERROR.  This is because it does
not know how to proceed in an appropriate manner.  This feature lets
userspace get involved to see if it can figure out a better path
forward.

Signed-off-by: Aaron Lewis <aaronlewis@xxxxxxxxxx>
Reviewed-by: David Edmondson <david.edmondson@xxxxxxxxxx>
Reviewed-by: Jim Mattson <jmattson@xxxxxxxxxx>

Hi Paolo,

Does this change look okay to you?  Can I get it queued?

Thanks,
Aaron


Sorry I missed it.  Looking now.

Paolo




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