5.10-stable review patch. If anyone has any objections, please let me know.
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From: Josh Poimboeuf jpoimboe@kernel.org
[ Upstream commit 01b057b2f4cc2d905a0bd92195657dbd9a7005ab ]
If the user has requested no SRSO mitigation, other mitigations can use the lighter-weight SBPB instead of IBPB.
Fixes: fb3bd914b3ec ("x86/srso: Add a Speculative RAS Overflow mitigation") Signed-off-by: Josh Poimboeuf jpoimboe@kernel.org Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Borislav Petkov (AMD) bp@alien8.de Acked-by: Borislav Petkov (AMD) bp@alien8.de Link: https://lore.kernel.org/r/b20820c3cfd1003171135ec8d762a0b957348497.169388998... Signed-off-by: Sasha Levin sashal@kernel.org --- arch/x86/kernel/cpu/bugs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index 4719089029f02..ec3ddb9a456ba 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -2344,7 +2344,7 @@ static void __init srso_select_mitigation(void)
switch (srso_cmd) { case SRSO_CMD_OFF: - return; + goto pred_cmd;
case SRSO_CMD_MICROCODE: if (has_microcode) {