On 03/02/18 02:16, Brijesh Singh wrote:
> On 3/1/18 6:03 PM, Laszlo Ersek wrote:

>> I also tried to test the series with SEV guests (again with Brijesh's v2
>> 2/2 patch applied on top). Unfortunately, I didn't get good results with
>> or without SMM. Without SMM, the guest OS boots to a point, but then it
>> gets stuck with the CPU spinning. With SMM, OVMF gets stuck in SMBASE
>> relocation.
> To boot the SEV guest with SMM support we need this KVM patch, without
> this we will get either #UD or some undefined behavior.
> https://git.kernel.org/pub/scm/virt/kvm/kvm.git/commit/?id=7607b7174405aec7441ff6c970833c463114040a

Looks like a very recent commit. What tree (and at what commit) do you
recommend that I build a new host kernel?

> It's strange that you are having trouble booting SEV guest without SMM
> support. It's possible that we might have some mismatch kernel kvm +
> qemu + ovmf patches.

Wait, the details matter: I wrote "the guest OS boots to a point". There
are no problems with the firmware, or the initial OS boot progress. The
issue happens fairly later (but certainly before I reach a login prompt
or similar). Maybe this is nothing new relative to last November; I
don't remember.

>> Until then, Brijesh, can you please test this series? Thank you!
> Sure, I will try the series tomorrow morning. thank you so much for the
> cleanup and remaining SMM work.


Do you have (maybe updated) instructions for setting up the SEV host?
What are the latest bits that are expected to work together?

edk2-devel mailing list

Reply via email to