On 19/06/2018 00:01, Justin Terry (VM) wrote:
> The issue is that the Windows Hypervisor Platform will return #GP for
> any rdmsr/wrmsr that is not a virtualized MSR in the hypervisor by
> default. A virt stack (QEMU) can override this default behavior by
> registering for MSR exits. In this
Hey Paolo,
Thanks for the reply.
I am certainly open for suggestions if you have any here. This was originally
reported when running the android kernel which I believe is Linux 4.4. I agree
that newer kernels do seem to handle #GP more gracefully than others but it
doesn’t help down level
On 06/06/2018 00:15, Justin Terry (VM) wrote:
> Some variations of Linux kernels end up accessing MSR's that the Windows
> Hypervisor doesn't implement which causes a GP to be returned to the guest.
> This fix registers QEMU for unimplemented MSR access and globally returns 0 on
> reads and
Some variations of Linux kernels end up accessing MSR's that the Windows
Hypervisor doesn't implement which causes a GP to be returned to the guest.
This fix registers QEMU for unimplemented MSR access and globally returns 0 on
reads and ignores writes. This behavior is allows the Linux kernel to
