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new 2454c2b76d arch/x86_64:Resolve the issue of abnormal interrupt numbers
triggered when KASAN is enabled
2454c2b76d is described below
commit 2454c2b76dcbbf1771f4bcbf89bd95f49384e879
Author: liwenxiang1 <[email protected]>
AuthorDate: Wed Dec 25 19:28:03 2024 +0800
arch/x86_64:Resolve the issue of abnormal interrupt numbers triggered when
KASAN is enabled
When assembly code calls a C function, it needs to save the context. After
enabling KASAN, the inserted __asan_load8_noabort function uses the rsi
register, causing the value of rsi in the interrupt handler to be modified,
which results in an incorrect interrupt number.
Signed-off-by: liwenxiang1 <[email protected]>
---
arch/x86_64/src/intel64/intel64_handlers.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86_64/src/intel64/intel64_handlers.c
b/arch/x86_64/src/intel64/intel64_handlers.c
index aca4e7981c..2e3d1820ed 100644
--- a/arch/x86_64/src/intel64/intel64_handlers.c
+++ b/arch/x86_64/src/intel64/intel64_handlers.c
@@ -190,6 +190,7 @@ uint64_t *irq_handler(uint64_t *regs, uint64_t irq_no)
*
****************************************************************************/
+nosanitize_address
uint64_t *irq_xcp_regs(void)
{
/* This must be the simplest as possible, so we not use too much registers.
