riscv: use hart id instead of cpu id on machine_kexec

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raw_smp_processor_id() doesn't return the hart id as stated in
arch/riscv/include/asm/smp.h, use smp_processor_id() instead
to get the cpu id, and cpuid_to_hartid_map() to pass the hart id
to the next kernel. This fixes kexec on HiFive Unleashed/Unmatched
where cpu ids and hart ids don't match (on qemu-virt they match).

Fixes: fba8a8674f ("RISC-V: Add kexec support")
Signed-off-by: Nick Kossifidis <mick@ics.forth.gr>
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

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Nick Kossifidis 2021-11-26 20:04:10 +02:00 • committed by Palmer Dabbelt

parent a11c07f032

commit 0e105f1d00

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arch/riscv/kernel/machine_kexec.c

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