[PATCH v5 02/22] KVM: arm/arm64: Add GICV3 pending table save API documentation
Christoffer Dall
christoffer.dall at linaro.org
Wed Apr 26 09:14:21 EDT 2017
On Wed, Apr 26, 2017 at 02:01:55PM +0100, Peter Maydell wrote:
> On 26 April 2017 at 14:00, Christoffer Dall <cdall at linaro.org> wrote:
> > Alternatively we should mark a pending error notification to the guest
> > in KVM, so that when the guest boots it gets something like an SError
> > instead, given that presumably the guest wrote the weird value. Except
> > of course if the problem is caused by QEMU fudging with the register
> > value for the PENDBASER.
>
> If we have scope for complaining at the guest we should do it at
> the point where the guest sets PENDBASER in the first place...
>
Is that what the hardware would have done?
Also, userspace could restore a bogus value in the PENDBASER (even
though the guest wrote something sane), so maybe we should just keep
this as is and handle it nicely in QEMU?
Thanks,
-Christoffer
> thanks
> -- PMM
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