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riscv/nsbi: halt upon sbi_mexception

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This avoids endless restart if NuttSBI fails to enter S-mode.

Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
This commit is contained in:
Yanfeng Liu
2024-07-10 16:47:31 +08:00
committed by Xiang Xiao
parent 5e551632dd
commit ab7bc90ebb
1 changed files with 7 additions and 3 deletions
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arch/risc-v/src/nuttsbi/sbi_mexception.c
+7 -3
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@@ -24,6 +24,7 @@
#include <nuttx/config.h> #include <nuttx/config.h>
#include <debug.h>
#include <stdint.h> #include <stdint.h>
/**************************************************************************** /****************************************************************************
@@ -32,7 +33,10 @@
void sbi_mexception(uintreg_t mcause, uintreg_t *mepc, uintreg_t tval) void sbi_mexception(uintreg_t mcause, uintreg_t *mepc, uintreg_t tval)
{ {
UNUSED(mcause); sinfo("cauz=%"PRIxREG" epc=%p tval=0x%"PRIxREG"\n", mcause, mepc, tval);
UNUSED(mepc);
UNUSED(tval); while (1)
{
__asm__ __volatile__("wfi");
}
} }