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Subject[PATCH 0/2] x86/boot: support to handle exception in early boot
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The boot code becomes a little complicated, and hits some bugs, e.g.
Commit 3a63f70bf4c3a ("x86/boot: Early parse RSDP and save it in
boot_params") broke kexec boot on EFI systems.

There is few hint when bug happens. Catching the exception and printing
message can give a immediate help, instead of adding more debug_putstr() to
narraw down the problem.

Although no functional dependency, but in order to show message, the early
console should be ready. I have sent a separate series:
https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1992923.html
https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1992919.html

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Cao jin <caoj.fnst@cn.fujitsu.com>
Cc: Wei Huang <wei@redhat.com>
Cc: Chao Fan <fanc.fnst@cn.fujitsu.com>
Cc: Nicolai Stange <nstange@suse.de>
Cc: Dou Liyang <douly.fnst@cn.fujitsu.com>
Cc: linux-kernel@vger.kernel.org

Pingfan Liu (2):
x86/idt: split out idt routines
x86/boot: set up idt for very early boot stage

arch/x86/boot/compressed/head_64.S | 11 +++++++
arch/x86/boot/compressed/misc.c | 61 ++++++++++++++++++++++++++++++++++++
arch/x86/include/asm/idt.h | 64 ++++++++++++++++++++++++++++++++++++++
arch/x86/kernel/idt.c | 58 +---------------------------------
4 files changed, 137 insertions(+), 57 deletions(-)
create mode 100644 arch/x86/include/asm/idt.h

--
2.7.4

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