On Tue, Jun 21, 2022 at 07:37:02AM +0200, Gerd Hoffman wrote: > On Mon, Jun 20, 2022 at 10:33:00PM +0000, Dionna Glaze wrote: > > For SEV-SNP, an OS is "SEV-SNP capable" without supporting this UEFI > > v2.9 memory type. In order for OVMF to be able to avoid pre-validating > > potentially hundreds of gibibytes of data before booting, it needs to > > know if the guest OS can support its use of the new type of memory in > > the memory map. > > I think this should be wired up via sev-guest object (see > SevGuestProperties in qapi/qom.json and target/i386/sev.c), > i.e. > > qemu -object sev-guest,accept-all-memory=true,$args > > (and likewise for -object tdx-guest once merged). > > take care, > Gerd
Right. As written the patch would allow the flag without SEV-SNP too - but does it make any sense outside SEV-SNP? It's better not to allow flag combinations that make no sense since they tend to become part of ABI that we then need to support. -- MST
