riscv: set trap vector earlier

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[ Upstream commit 6ad8735994 ]

The exception vector of the booting hart is not set before enabling
the mmu and then still points to the value of the previous firmware,
typically _start. That makes it hard to debug setup_vm() when bad
things happen. So fix that by setting the exception vector earlier.

Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Signed-off-by: yang.zhang <yang.zhang@hexintek.com>
Link: https://lore.kernel.org/r/20240508022445.6131-1-gaoshanliukou@163.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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yang.zhang 2024-05-08 10:24:45 +08:00 • committed by Greg Kroah-Hartman

parent 124451bbc2

commit ce2e63804a

1 changed files with 3 additions and 0 deletions

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arch/riscv/kernel/head.S

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