Re: [PATCH] qemu: Report sev measurement value and nonce explicitly

On 10/16/22 22:06, Cole Robinson wrote: > The value returned by qemu's query-sev-launch-measure comes > straight from the LAUNCH_MEASURE SEV firmware command. It's two > values packed together: first 32 bytes is the launch measurement, > last 16 bytes is the nonce. > > This combined value is really just an artifact of the return value > of the firmware command, it has no direct usage. Users want the two > individual values. But because qemu and libvirt do not separate them > apart, every app that wants to process this value will have to do > it manually. > > This performs the split for the user, and delivers the values in two > new TYPED_PARAM fields: sev-measurement-value, sev-measurement-nonce > > Signed-off-by: Cole Robinson <crobinso(a)redhat.com&gt; > --- > include/libvirt/libvirt-domain.h | 22 ++++++++++++++++++++++ > src/qemu/qemu_driver.c | 23 +++++++++++++++++++++++ > 2 files changed, 45 insertions(+) > Reviewed-by: Michal Privoznik <mprivozn(a)redhat.com&gt;