diff options
Diffstat (limited to 'sys/arch')
| -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; } |