Currently the ramfb device loads the vgabios-ramfb.bin unconditionally, but only the x86 need the vgabios-ramfb.bin, this can cause that when use the release package on arm64 it can't find the vgabios-ramfb.bin.
Because only seabios will use the vgabios-ramfb.bin, load the rom logic is x86-specific. For other !x86 platforms, the edk2 ships an EFI driver for ramfb, so they don't need to load the romfile. So add a new property use-legacy-x86-rom in both ramfb and vfio_pci device, because the vfio display also use the ramfb_setup() to load the vgabios-ramfb.bin file. After have this property, the machine type can set the compatibility to not load the vgabios-ramfb.bin if the arch doesn't need it. Then I set the use_legacy_x86_rom property to false by default, and only set it to true on x86 since only x86 will need it. At the same time, set the "use-legacy-x86-rom" property to true on those historical versioned machine types in order to avoid the memory layout being changed. Changelog: --------- v10 -> v11: - Move TYPE* from hw/vfio/pci.h to hw/vfio/types.h v9 -> v10: - Fix the long line. - Add the reviewed-by and ack. v8 -> v9: - Improve the commit message. v7 -> v8: - Set the property in microvm machine type. v6 -> v7: - Set the property into hw_compat_10_0 instead of hw_compat_9_2. v5 -> v6: - Set the property to true on those historical versioned machine types. v4 -> v5: - Fix some typo error. - Set the property in piix machine type. v3 -> v4: - Set the new property to false by default, only set it to true on x86. v2 -> v3: - Fix the underscore error. - Add a new patch to set the property in arm compatibility. v1 -> v2: - Change the property name. v9: https://lore.kernel.org/all/20250704030315.2181235-1-shahu...@redhat.com/ v7: https://lore.kernel.org/all/20250702085616.2172722-1-shahu...@redhat.com/ v6: https://lore.kernel.org/all/20250701030549.2153331-1-shahu...@redhat.com/ v5: https://lore.kernel.org/all/20250626034526.2136585-1-shahu...@redhat.com/ v4: https://lore.kernel.org/all/20250617030521.2109305-1-shahu...@redhat.com/ v3: https://lore.kernel.org/all/20250609073408.2083831-1-shahu...@redhat.com/ v2: https://lore.kernel.org/all/20250606070234.2063451-1-shahu...@redhat.com/ v1: https://lore.kernel.org/all/20250605030351.2056571-1-shahu...@redhat.com/ Shaoqin Huang (3): ramfb: Add property to control if load the romfile vfio: Move the TYPE_* to hw/vfio/types.h hw/i386: Add the ramfb romfile compatibility hw/core/machine.c | 2 ++ hw/display/ramfb-standalone.c | 5 ++++- hw/display/ramfb-stubs.c | 2 +- hw/display/ramfb.c | 6 ++++-- hw/i386/microvm.c | 3 +++ hw/i386/pc_piix.c | 10 ++++++++++ hw/i386/pc_q35.c | 3 +++ hw/vfio/display.c | 4 ++-- hw/vfio/pci.c | 2 ++ hw/vfio/pci.h | 11 ++--------- hw/vfio/types.h | 21 +++++++++++++++++++++ include/hw/display/ramfb.h | 2 +- 12 files changed, 55 insertions(+), 16 deletions(-) create mode 100644 hw/vfio/types.h -- 2.40.1
