| commit | 32ec7fd08b597586774b92ac1cd2678021ccac1b | |
| author | H. Peter Anvin <hpa@zytor.com> | |
| Sat, 28 Mar 2009 20:53:26 +0000 (28 13:53 -0700) | ||
| committer | H. Peter Anvin <hpa@zytor.com> | |
| Sun, 29 Mar 2009 01:18:20 +0000 (28 18:18 -0700) | ||
| tree | 532ec12d24a1c7c17d3250ccdb2b66ddc8804cff | treesnapshot (tar.gz zip) |
| parent | 01522df346f846906eaf6ca57148641476209909 | commitdiff |
x86, setup: preemptively save/restore edi and ebp around INT 15 E820
Impact: BIOS bugproofing
Since there are BIOSes known to clobber %ebx and %esi for INT 15 E820,
assume there is something out there clobbering %edi and/or %ebp too,
and don't wait for it to fail.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Impact: BIOS bugproofing
Since there are BIOSes known to clobber %ebx and %esi for INT 15 E820,
assume there is something out there clobbering %edi and/or %ebp too,
and don't wait for it to fail.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| arch/x86/boot/memory.c | diffblobblamehistory |