The flush_tlb_all() function is not used a whole lot, but we might
as well use broadcast TLB flushing there, too.
Signed-off-by: Rik van Riel <riel@xxxxxxxxxxx>
---
arch/x86/mm/tlb.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index 29207dc5b807..266d5174fc7b 100644
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -1074,6 +1074,12 @@ static void do_flush_tlb_all(void *info)
void flush_tlb_all(void)
{
count_vm_tlb_event(NR_TLB_REMOTE_FLUSH);
+ if (cpu_feature_enabled(X86_FEATURE_INVLPGB)) {
+ guard(preempt)();
+ invlpgb_flush_all();
+ tlbsync();
+ return;
+ }
on_each_cpu(do_flush_tlb_all, NULL, 1);
}
--
2.47.1
