Re: [PATCH v5 0/3] Add restrictions for kexec/kdump jumping between 5-level and 4-level kernel
From: Baoquan He
Date: Tue Jun 11 2019 - 01:52:28 EST
On 05/24/19 at 03:38pm, Baoquan He wrote:
Can anyone help do further reviewing on this patchset? Or consider
merging since people have ack-ed?
> The v4 cover letter tells the background about this adding, paste the
> link here for reference:
> Tune code and log per Dave's comments, no functional change.
> - In patch 2, change the printed erorr message;
> - In patch 3, add macro SZ_64T and use it in code, and remove the
> obsolete code comment.
> No functional change.
> - Rewrite log of patch 1/3 tell who the newly added bits are gonna be
> - Rewrite log of patch 2/3 per tglx's words.
> - Add Kirill's Acked-by.
> Change the constant to match the notation for the rest of defines as
> Kirill suggested;
> Correct the subject of patch 1 according to tglx's comment;
> Add more information to cover-letter to address reviewers' concerns;
> Baoquan He (3):
> x86/boot: Add xloadflags bits for 5-level kernel checking
> x86/kexec/64: Error out if try to jump to old 4-level kernel from
> 5-level kernel
> x86/kdump/64: Change the upper limit of crashkernel reservation
> arch/x86/boot/header.S | 12 +++++++++++-
> arch/x86/include/uapi/asm/bootparam.h | 2 ++
> arch/x86/kernel/kexec-bzimage64.c | 5 +++++
> arch/x86/kernel/setup.c | 15 ++++++++++++---
> include/linux/sizes.h | 1 +
> 5 files changed, 31 insertions(+), 4 deletions(-)