kvm_vcpu_check_block() is called while not in TASK_RUNNING, and therefore
it cannot sleep. Writing to guest memory is therefore forbidden, but it
can happen on AMD processors if kvm_check_nested_events() causes a vmexit.
Fortunately, all events that are caught by kvm_check_nested_events() are
als
On Thu, Dec 7, 2023 at 8:21 AM Sean Christopherson wrote:
> Doh. We got the less obvious cases and missed the obvious one.
>
> Ugh, and we also missed a related mess in kvm_guest_apic_has_interrupt().
> That
> thing should really be folded into vmx_has_nested_events().
>
> Good gravy. And vmx_
On Wed, Dec 13, 2023 at 2:25 PM Maxim Levitsky wrote:
>
> On Tue, 2023-12-12 at 07:28 -0800, Sean Christopherson wrote:
> > On Sun, Dec 10, 2023, Jim Mattson wrote:
> > > On Thu, Dec 7, 2023 at 8:21 AM Sean Christopherson
> > > wrote:
> > > > Doh. We
