Character must be returned via ret[0] field (copied to a0 by KVM).
Return value should be set to 0 to indicate successful processing.
Signed-off-by: Vladimir Isaev <vladimir.isaev@syntacore.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <
20230203135155.12449-1-vladimir.isaev@syntacore.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
case SBI_EXT_0_1_CONSOLE_GETCHAR:
ret = qemu_chr_fe_read_all(serial_hd(0)->be, &ch, sizeof(ch));
if (ret == sizeof(ch)) {
- run->riscv_sbi.args[0] = ch;
+ run->riscv_sbi.ret[0] = ch;
} else {
- run->riscv_sbi.args[0] = -1;
+ run->riscv_sbi.ret[0] = -1;
}
+ ret = 0;
break;
default:
qemu_log_mask(LOG_UNIMP,