[RFC PATCH v2 16/16] [DO NOT MERGE] x86/kexec: enable DEBUG

David Woodhouse dwmw2 at infradead.org
Fri Nov 22 14:38:25 PST 2024


From: David Woodhouse <dwmw at amazon.co.uk>

Signed-off-by: David Woodhouse <dwmw at amazon.co.uk>
---
 arch/x86/kernel/relocate_kernel_64.S | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S
index 67f6853c7abe..ebbd76c9a3e9 100644
--- a/arch/x86/kernel/relocate_kernel_64.S
+++ b/arch/x86/kernel/relocate_kernel_64.S
@@ -14,6 +14,8 @@
 #include <asm/nospec-branch.h>
 #include <asm/unwind_hints.h>
 
+#define DEBUG
+
 /*
  * Must be relocatable PIC code callable as a C function, in particular
  * there must be a plain RET and not jump to return thunk.
@@ -191,6 +193,8 @@ SYM_CODE_START_LOCAL_NOALIGN(identity_mapped)
 	pushw	$0xff
 	lidt	(%rsp)
 	addq	$10, %rsp
+
+	int3
 #endif /* DEBUG */
 
 	/*
-- 
2.47.0




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