acrn-hypervisor/hypervisor/boot/cmdline.c

43 lines
922 B
C

/*
* Copyright (C) 2018 Intel Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <types.h>
#include <errno.h>
#include <boot.h>
#include <pgtable.h>
#include <dbg_cmd.h>
#include <logmsg.h>
void parse_hv_cmdline(void)
{
const char *start = NULL;
const char *end = NULL;
if (boot_from_multiboot1()) {
struct multiboot_info *mbi = (struct multiboot_info *)(hpa2hva_early((uint64_t)boot_regs[1]));
if ((mbi->mi_flags & MULTIBOOT_INFO_HAS_CMDLINE) != 0U) {
start = (char *)hpa2hva_early((uint64_t)mbi->mi_cmdline);
}
}
while ((start != NULL) && ((*start) != '\0')) {
while ((*start) == ' ')
start++;
if ((*start) != '\0') {
end = start + 1;
while ((*end != ' ') && ((*end) != '\0'))
end++;
if (!handle_dbg_cmd(start, (int32_t)(end - start))) {
/* if not handled by handle_dbg_cmd, it can be handled further */
}
start = end;
}
}
}