Il mer 28 set 2022, 04:21 Chenyi Qiang ha scritto:
> >> +warn_report_once("KVM: encounter a notify exit with %svalid
> >> context in"
> >> + " guest. It means there can be possible
> >> misbehaves in"
> >> + " guest, please have a look.",
>
On 9/27/2022 9:43 PM, Paolo Bonzini wrote:
On 9/23/22 09:33, Chenyi Qiang wrote:
Because there are some concerns, e.g. a notify VM exit may happen with
VM_CONTEXT_INVALID set in exit qualification (no cases are anticipated
that would set this bit), which means VM context is corrupted. To
On 9/23/22 09:33, Chenyi Qiang wrote:
Because there are some concerns, e.g. a notify VM exit may happen with
VM_CONTEXT_INVALID set in exit qualification (no cases are anticipated
that would set this bit), which means VM context is corrupted. To avoid
the false positive and a well-behaved guest
There are cases that malicious virtual machine can cause CPU stuck (due
to event windows don't open up), e.g., infinite loop in microcode when
nested #AC (CVE-2015-5307). No event window means no event (NMI, SMI and
IRQ) can be delivered. It leads the CPU to be unavailable to host or
other VMs.
