Il 22/11/2013 12:46, Laszlo Ersek ha scritto: >> Also, I see a command line compatibility problem, especially if one >> > wants OVMF.fd to become the default firmware. > I don't understand. If you use the un-split build, you use the original > command line (single -pflash or -drive if=pflash option). > > If you use the split build, then you: > - extend the first -drive if=pflash option with ",readonly" -- this is > optional but recommended, > - you add a second option after the first, pointing it to NVVARSTORE.fd > (ie. its VM-specific, private copy).
Suppose OVMF.fd is already the default. To add a non-volatile store, you would have to do one of the following: * -pflash /path/to/OVMF.fd -pflash NVVARSTORE.fd Or alternatively, pc and q35 could use the current semantics forever. UEFI-by-default will be tied to a separate machine type (pc-uefi, or q35-uefi, or a different chipset) where -bios will also create a cfi_pflash01 device and all pflash drives will be mapped below the BIOS's. So you would have one of the following: * -M pc -pflash /path/to/OVMF.fd -pflash NVVARSTORE.fd * -M pc-uefi -pflash NVVARSTORE.fd > You don't specify OVMF.fd twice. I meant the first time is inside QEMU, the second is on the command line. > I think I don't fully understand your point. I probably didn't express it well, also because I have no real idea to offer (I don't like the "-M pc-uefi" either). Paolo
