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| author | Ian Moffett <ian@osmora.org> | 2024-02-25 23:41:25 -0500 |
|---|---|---|
| committer | Ian Moffett <ian@osmora.org> | 2024-02-25 23:41:25 -0500 |
| commit | c9b48569f0aee7cbd643201d7eaf922ed1b7e8dc (patch) | |
| tree | 88b5f791c03c5d86749dd7cc3bfbb788459806c7 /sys/arch/amd64 | |
| parent | 6262c51459bd48897e7a41094efa319edb2efb58 (diff) | |
kernel/amd64: spectre: Refactor
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'sys/arch/amd64')
| -rw-r--r-- | sys/arch/amd64/amd64/spectre.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/arch/amd64/amd64/spectre.c b/sys/arch/amd64/amd64/spectre.c index b276bba..1247607 100644 --- a/sys/arch/amd64/amd64/spectre.c +++ b/sys/arch/amd64/amd64/spectre.c @@ -69,9 +69,11 @@ try_spectre_mitigate(void) } KINFO("IBRS supported; spectre mitigation enabled\n"); + tmp = rdmsr(IA32_SPEC_CTL); tmp |= __BIT(0); /* IBRS */ wrmsr(IA32_SPEC_CTL, tmp); + return EXIT_SUCCESS; } |