traps: x86_64: add TRACE_IRQS_OFF in error_entry

Add TRACE_IRQS_OFF just before entering the C code.

All exceptions are taken via interrupt gates. If irq tracing is
enabled, it should be notified as soon as possible. Interrupts
are only (conditionally) re-enabled in C code.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 25bb3f9b255..963b35b81bc 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -1065,7 +1065,8 @@ KPROBE_ENTRY(error_entry)
         je  error_kernelspace
 error_swapgs:   
         SWAPGS
-error_sti:      
+error_sti:
+        TRACE_IRQS_OFF
         movq %rdi,RDI(%rsp)     
         CFI_REL_OFFSET  rdi,RDI
         movq %rsp,%rdi