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authorArnaldo Carvalho de Melo <[email protected]>2022-08-01 08:59:31 -0300
committerArnaldo Carvalho de Melo <[email protected]>2022-08-01 08:59:31 -0300
commit18808564aa3bc9ae3309fd8a5c0a93f7f9a23f9a (patch)
tree4c1732a2dddb246f0d39a492cbf8e6db31f3af3e /arch/x86/kernel/cpu/bugs.c
parent9a0b36266f7a83912592052035b84f13b12e30da (diff)
parent3d7cb6b04c3f3115719235cc6866b10326de34cd (diff)
Merge remote-tracking branch 'torvalds/master' into perf/core
To pick up the fixes that went upstream via acme/perf/urgent and to get to v5.19. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'arch/x86/kernel/cpu/bugs.c')
-rw-r--r--arch/x86/kernel/cpu/bugs.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 6454bc767f0f..6761668100b9 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -1520,6 +1520,7 @@ static void __init spectre_v2_select_mitigation(void)
* enable IBRS around firmware calls.
*/
if (boot_cpu_has_bug(X86_BUG_RETBLEED) &&
+ boot_cpu_has(X86_FEATURE_IBPB) &&
(boot_cpu_data.x86_vendor == X86_VENDOR_AMD ||
boot_cpu_data.x86_vendor == X86_VENDOR_HYGON)) {