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traps: x86_64: add TRACE_IRQS_OFF in paranoidentry macro 

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>
This commit is contained in:
Alexander van Heukelum 2008-09-26 14:03:03 +02:00 committed by Ingo Molnar
parent 6b11d4ef3e
commit 7e61a79324
1 changed files with 3 additions and 0 deletions
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3
arch/x86/kernel/entry_64.S
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@ -939,6 +939,9 @@ END(spurious_interrupt)
.if \ist
movq %gs:pda_data_offset, %rbp
.endif
.if \irqtrace
TRACE_IRQS_OFF
.endif
movq %rsp,%rdi
movq ORIG_RAX(%rsp),%rsi
movq $-1,ORIG_RAX(%rsp)