On Wed, Mar 19, 2025 at 11:37:40AM +0000, Daniel P. Berrangé wrote: > > > > +# @qemu-vars: The firmware expects qemu to provide an efi variable > > > > +# store, via "uefi-vars-sysbus" or "uefi-vars-x64" device. > > I wonder if 'qemu-vars' is the right name here ? It feels like the > specification > for such device is effectively defined by UEFI, with any hypervisor providing > a > impl. Perhaps just call it 'uefi-vars-dev' or some name that's relevant for > what EDK2 calls it ?
'host-uefi-vars' maybe? Or 'vmm-uefi-vars'? > > There is 'stateless' already for 'firmware image in r/o flash'. > > What's the behaviour of UEFI if build with JSON vars support, but without > QEMU providing any JSON vars backend ? It will panic. > We would want to expand the 'stateless' docs to mention that this feature > flag indicates optional support for persistence in that case. Optional is not possible do due to the way variable store support is organized in edk2. Firmware can't switch between smm and non-smm configuration at runtime for similar reasons. take care, Gerd
