riscv: kexec: Align the kexeced kernel entry

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[ Upstream commit 1bfb2b618d ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Song Shuai 2023-09-06 17:58:17 +08:00 • committed by Greg Kroah-Hartman

parent e9b8e26610

commit dd8fce4e2d

1 changed files with 7 additions and 1 deletions

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arch/riscv/kernel/elf_kexec.c

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