diff options
| author | David Woodhouse <dwmw@amazon.co.uk> | 2025-03-26 14:16:01 +0000 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2025-04-10 12:17:13 +0200 |
| commit | d358b45120cc8da9f10d8c1e8ec3559f72525147 (patch) | |
| tree | c9c8a27bce4e93f11a3c45c3100c490732e97b77 /arch/x86/include/asm/kexec.h | |
| parent | x86: Remove __FORCE_ORDER workaround (diff) | |
| download | linux-d358b45120cc8da9f10d8c1e8ec3559f72525147.tar.gz linux-d358b45120cc8da9f10d8c1e8ec3559f72525147.zip | |
x86/kexec: Add 8250 serial port output
If a serial port was configured for early_printk, use it for debug output
from the relocate_kernel exception handler too.
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20250326142404.256980-2-dwmw2@infradead.org
Diffstat (limited to 'arch/x86/include/asm/kexec.h')
| -rw-r--r-- | arch/x86/include/asm/kexec.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kexec.h b/arch/x86/include/asm/kexec.h index fb4537c58b54..9601094ac0ba 100644 --- a/arch/x86/include/asm/kexec.h +++ b/arch/x86/include/asm/kexec.h @@ -64,6 +64,7 @@ extern unsigned long kexec_pa_table_page; extern unsigned long kexec_pa_swap_page; extern gate_desc kexec_debug_idt[]; extern unsigned char kexec_debug_exc_vectors[]; +extern uint16_t kexec_debug_8250_port; #endif /* |