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Subject[PATCH 1/7] traps: x86_64: add TRACE_IRQS_OFF in error_entry
Date
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 <fastmail.fm>
---
arch/x86/kernel/entry_64.S | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 89434d4..78fa552 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -1058,7 +1058,8 @@ 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
--
1.5.4.3


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