On 5 December 2014 at 18:36, Laszlo Ersek <ler...@redhat.com> wrote: > A number of tools depend on passing the kernel image, the initial > ramdisk, and the kernel command line to the guest on the QEMU command > line (options -kernel, -initrd, -append, respectively). At the moment, > these QEMU options work, but the guest kernel loaded this way is > launched by a minimal binary firmware that is dynamically composed by > QEMU. As a consequence, such a kernel has no UEFI environment. > > In this patchset the kernel, initrd and cmdline blobs are passed to the > guest firmware to process & load. This mode is activated when both > -kernel and -pflash unit#0 (or -bios) are specified.
...so we avoid back-compat problems on the assumption that nobody was previously trying to provide both -bios and -kernel at once. I *think* that's probably a reasonable assumption... -- PMM
