> > This looks good to me. This should solve "-EPERM" return by "__kvm_set_msr"
> > .
> >
> > A question I have, In the case of "kvm_emulate_rdmsr()", for "r" we
> > are injecting #GP.
> > Is there any possibility of this check to be hit and still result in #GP?
>
> When I wrote this patch series
On Thu, 2020-11-05 at 07:14 +0100, Pankaj Gupta wrote:
> > Recent introduction of the userspace msr filtering added code that uses
> > negative error codes for cases that result in either #GP delivery to
> > the guest, or handled by the userspace msr filtering.
> >
> > This breaks an assumption th
> Recent introduction of the userspace msr filtering added code that uses
> negative error codes for cases that result in either #GP delivery to
> the guest, or handled by the userspace msr filtering.
>
> This breaks an assumption that a negative error code returned from the
> msr emulation code is
On 04/11/20 17:31, Qian Cai wrote:
On Sun, 2020-11-01 at 13:55 +0200, Maxim Levitsky wrote:
Recent introduction of the userspace msr filtering added code that uses
negative error codes for cases that result in either #GP delivery to
the guest, or handled by the userspace msr filtering.
This bre
On Sun, 2020-11-01 at 13:55 +0200, Maxim Levitsky wrote:
> Recent introduction of the userspace msr filtering added code that uses
> negative error codes for cases that result in either #GP delivery to
> the guest, or handled by the userspace msr filtering.
>
> This breaks an assumption that a neg
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