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| author |   Alexander van Heukelum <heukelum@fastmail.fm> | 2008-09-26 14:03:03 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-10-13 10:21:55 +0200 |
| commit | 7e61a7932495e37685e95ec9a59ad08810dec959 (patch) | |
| tree | 302cb73a88bd903aceffe473a34c8a66965d91ca /arch/x86/kernel/entry_64.S | |
| parent | traps: x86_64: add TRACE_IRQS_OFF in error_entry (diff) | |
| download | linux-dev-7e61a7932495e37685e95ec9a59ad08810dec959.tar.xz linux-dev-7e61a7932495e37685e95ec9a59ad08810dec959.zip | |
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>
Diffstat (limited to 'arch/x86/kernel/entry_64.S')
| -rw-r--r-- | arch/x86/kernel/entry_64.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index 963b35b81bcc..977c8ea66028 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -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) |