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| author | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2022-03-05 15:55:23 +0000 |
|---|---|---|
| committer | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2022-03-09 09:29:10 +0000 |
| commit | dd2a56ab6f4743d77f3586749eb6934983944f1f (patch) | |
| tree | ab45e04ac4740e0a6081c605ea08f0f6842fb2d3 /include | |
| parent | 4718125192875085e6b1104e8286dbda7d4db682 (diff) | |
| download | qemu-dd2a56ab6f4743d77f3586749eb6934983944f1f.zip qemu-dd2a56ab6f4743d77f3586749eb6934983944f1f.tar.gz qemu-dd2a56ab6f4743d77f3586749eb6934983944f1f.tar.bz2 | |
macfb: increase number of registers saved in MacfbState
The MacOS toolbox ROM accesses a number of addresses between 0x0 and 0x200 during
initialisation and resolution changes. Whilst the function of many of these
registers is unknown, it is worth the minimal cost of saving these extra values as
part of migration to help future-proof the migration stream for the q800 machine
as it starts to stabilise.
Note this is a migration break, but since there are upcoming incompatible changes
for the q800 machine (and migration does not even succeed without these patches)
then this is not an issue.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20220305155530.9265-4-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/display/macfb.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/hw/display/macfb.h b/include/hw/display/macfb.h index 6d9f0f7..55a50d3 100644 --- a/include/hw/display/macfb.h +++ b/include/hw/display/macfb.h @@ -48,7 +48,8 @@ typedef struct MacFbMode { uint32_t offset; } MacFbMode; -#define MACFB_NUM_REGS 8 +#define MACFB_CTRL_TOPADDR 0x200 +#define MACFB_NUM_REGS (MACFB_CTRL_TOPADDR / sizeof(uint32_t)) typedef struct MacfbState { MemoryRegion mem_vram; |