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| author | Philippe Mathieu-Daudé <philmd@redhat.com> | 2020-03-05 13:45:19 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-03-16 23:02:25 +0100 |
| commit | a9d8ba2be58e067bdfbff830eb9ff438d8db7f10 (patch) | |
| tree | 4ac47a15c261771677420b74950d784766565eff /ui/curses.c | |
| parent | 2eea51bd018fa48a952010e9bb7480e9d6390ba3 (diff) | |
| download | focaccia-qemu-a9d8ba2be58e067bdfbff830eb9ff438d8db7f10.tar.gz focaccia-qemu-a9d8ba2be58e067bdfbff830eb9ff438d8db7f10.zip | |
hw/audio/intel-hda: Use memory region alias to reduce .rodata by 4.34MB
The intel-hda model uses an array of register indexed by the
register address. This array also contains a pair of aliased
registers at offset 0x2000. This creates a huge hole in the
array, which ends up eating 4.6MiB of .rodata (size reported
on x86_64 host, building with --extra-cflags=-Os).
By using a memory region alias, we reduce this array to 132kB.
Before:
(qemu) info mtree
00000000febd4000-00000000febd7fff (prio 1, i/o): intel-hda
After:
(qemu) info mtree
00000000febd4000-00000000febd7fff (prio 1, i/o): intel-hda
00000000febd4000-00000000febd7fff (prio 1, i/o): intel-hda-container
00000000febd4000-00000000febd5fff (prio 0, i/o): intel-hda
00000000febd6000-00000000febd7fff (prio 0, i/o): alias intel-hda-alias @intel-hda 0000000000000000-0000000000001fff
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'ui/curses.c')
0 files changed, 0 insertions, 0 deletions