[kvm-unit-tests PATCH] riscv: lib: sbi_shutdown add exit code.
Jesse Taube
jesse at rivosinc.com
Fri Jun 20 08:50:51 PDT 2025
When exiting it may be useful for the sbi implementation to know the
exit code.
Add exit code to sbi_shutdown, and use it in exit().
Signed-off-by: Jesse Taube <jesse at rivosinc.com>
---
lib/riscv/asm/sbi.h | 2 +-
lib/riscv/io.c | 2 +-
lib/riscv/sbi.c | 4 ++--
3 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/lib/riscv/asm/sbi.h b/lib/riscv/asm/sbi.h
index a5738a5c..de11c109 100644
--- a/lib/riscv/asm/sbi.h
+++ b/lib/riscv/asm/sbi.h
@@ -250,7 +250,7 @@ struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0,
unsigned long arg3, unsigned long arg4,
unsigned long arg5);
-void sbi_shutdown(void);
+void sbi_shutdown(unsigned int code);
struct sbiret sbi_hart_start(unsigned long hartid, unsigned long entry, unsigned long sp);
struct sbiret sbi_hart_stop(void);
struct sbiret sbi_hart_get_status(unsigned long hartid);
diff --git a/lib/riscv/io.c b/lib/riscv/io.c
index fb40adb7..02231268 100644
--- a/lib/riscv/io.c
+++ b/lib/riscv/io.c
@@ -150,7 +150,7 @@ void halt(int code);
void exit(int code)
{
printf("\nEXIT: STATUS=%d\n", ((code) << 1) | 1);
- sbi_shutdown();
+ sbi_shutdown(code & 1);
halt(code);
__builtin_unreachable();
}
diff --git a/lib/riscv/sbi.c b/lib/riscv/sbi.c
index 2959378f..9dd11e9d 100644
--- a/lib/riscv/sbi.c
+++ b/lib/riscv/sbi.c
@@ -107,9 +107,9 @@ struct sbiret sbi_sse_inject(unsigned long event_id, unsigned long hart_id)
return sbi_ecall(SBI_EXT_SSE, SBI_EXT_SSE_INJECT, event_id, hart_id, 0, 0, 0, 0);
}
-void sbi_shutdown(void)
+void sbi_shutdown(unsigned int code)
{
- sbi_ecall(SBI_EXT_SRST, 0, 0, 0, 0, 0, 0, 0);
+ sbi_ecall(SBI_EXT_SRST, 0, 0, code, 0, 0, 0, 0);
puts("SBI shutdown failed!\n");
}
--
2.43.0
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