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| author | Patrick Rudolph <patrick.rudolph@9elements.com> | 2021-11-30 18:34:32 +0100 |
|---|---|---|
| committer | Patrick Georgi <patrick@coreboot.org> | 2021-12-06 12:37:48 +0000 |
| commit | 5b334b88a635e46d47ce3f3b703d2470d6e8514c (patch) | |
| tree | e57abd4d22b9ccaa7c771de1ad18845991521b9f /src/security/lockdown | |
| parent | c7f0bca9c23ac8d96ffc5ec0fcaddf9190d7dbff (diff) | |
x86_64 assembly: Don't touch %gs
With CPU_INFO_V2 enabled %gs holds the pointer to the cpu_info struct,
so don't clobber it. Backup and restore %gs where possible.
Fixes a crash in MPinit seen after calling FSP-S.
Change-Id: If9fc999b34530de5d8b6ad27b9af25fc552e9420
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59764
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Diffstat (limited to 'src/security/lockdown')
0 files changed, 0 insertions, 0 deletions