On Wed, Oct 28, 2020 at 09:23:52AM +0100, Joerg Roedel wrote: > On Mon, Oct 26, 2020 at 07:27:06PM +0100, Borislav Petkov wrote: > > A couple of lines above you call get_sev_encryption_bit() which already > > reads MSR_AMD64_SEV. Why not set sev_status there too instead of reading > > that MSR again here? > > > > It can read that MSR once and use sev_status(%rip) from then on to avoid > > reading that MSR multiple times... > > Right, makes sense. I updated the patch.
Hang on, get_sev_encryption_bit() is also called from startup_32(), so it can't contain any 64-bit instructions to set sev_status.
