linux

iv/linux

History

Guo Ren 12f237200c riscv: kexec: Fixup irq controller broken in kexec crash path

[ Upstream commit b17d19a5314a37f7197afd1a0200affd21a7227d ]

If a crash happens on cpu3 and all interrupts are binding on cpu0, the
bad irq routing will cause a crash kernel which can't receive any irq.
Because crash kernel won't clean up all harts' PLIC enable bits in
enable registers. This patch is similar to 9141a003a491 ("ARM: 7316/1:
kexec: EOI active and mask all interrupts in kexec crash path") and
78fd584cdec0 ("arm64: kdump: implement machine_crash_shutdown()"), and
PowerPC also has the same mechanism.

Fixes: fba8a8674f68 ("RISC-V: Add kexec support")
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Xianting Tian <xianting.tian@linux.alibaba.com>
Cc: Nick Kossifidis <mick@ics.forth.gr>
Cc: Palmer Dabbelt <palmer@rivosinc.com>
Link: https://lore.kernel.org/r/20221020141603.2856206-2-guoren@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2022-12-08 11:28:44 +01:00

boot

riscv: dts: sifive unleashed: Add PWM controlled LEDs

2022-12-02 17:41:01 +01:00

configs

RISC-V: defconfigs: Set CONFIG_FB=y, for FB console

2022-07-12 16:34:54 +02:00

errata

riscv: skip errata_cip_453.o if CONFIG_ERRATA_SIFIVE_CIP_453 is disabled

2021-06-01 21:16:41 -07:00

include

riscv: fix race when vmap stack overflow