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// SPDX-License-Identifier: GPL-2.0
#define BOOT_CTYPE_H
#include "misc.h"
#include "error.h"
#include "../string.h"
#ifdef CONFIG_ACPI
/*
* Max length of 64-bit hex address string is 19, prefix "0x" + 16 hex
* digits, and '\0' for termination.
*/
#define MAX_ADDR_LEN 19
static acpi_physical_address get_acpi_rsdp(void)
{
acpi_physical_address addr = 0;
#ifdef CONFIG_KEXEC
char val[MAX_ADDR_LEN] = { };
int ret;
ret = cmdline_find_option("acpi_rsdp", val, MAX_ADDR_LEN);
if (ret < 0)
return 0;
if (kstrtoull(val, 16, &addr))
return 0;
#endif
return addr;
}
#endif /* CONFIG_ACPI */
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