mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-14 15:54:15 +08:00
riscv: kexec: Align the kexeced kernel entry
The current riscv boot protocol requires 2MB alignment for RV64
and 4MB alignment for RV32.
In KEXEC_FILE path, the elf_find_pbase() function should align
the kexeced kernel entry according to the requirement, otherwise
the kexeced kernel would silently BUG at the setup_vm().
Fixes: 8acea455fa
("RISC-V: Support for kexec_file on panic")
Signed-off-by: Song Shuai <songshuaishuai@tinylab.org>
Link: https://lore.kernel.org/r/20230906095817.364390-1-songshuaishuai@tinylab.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This commit is contained in:
parent
0bb80ecc33
commit
1bfb2b618d
@ -98,7 +98,13 @@ static int elf_find_pbase(struct kimage *image, unsigned long kernel_len,
|
||||
kbuf.image = image;
|
||||
kbuf.buf_min = lowest_paddr;
|
||||
kbuf.buf_max = ULONG_MAX;
|
||||
kbuf.buf_align = PAGE_SIZE;
|
||||
|
||||
/*
|
||||
* Current riscv boot protocol requires 2MB alignment for
|
||||
* RV64 and 4MB alignment for RV32
|
||||
*
|
||||
*/
|
||||
kbuf.buf_align = PMD_SIZE;
|
||||
kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
|
||||
kbuf.memsz = ALIGN(kernel_len, PAGE_SIZE);
|
||||
kbuf.top_down = false;
|
||||
|
Loading…
Reference in New Issue
Block a user