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libpayload: Save EAX and EBX only for multiboot payloads

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When CONFIG_LP_MULTIBOOT is enabled, save the values of EAX and EBX
passed from the bootloader. This information can be useful for
multiboot payloads feature alone.

Change-Id: I98c2cd00206ee48eb0fc67edd9533032bcf3e5eb
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82040
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Dinesh Gehlot <digehlot@google.com>
This commit is contained in:
Subrata Banik
2024-04-30 05:12:21 +00:00
parent e3eeba6aae
commit bb937c8775
3 changed files with 4 additions and 5 deletions
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4
payloads/libpayload/arch/x86/multiboot.c
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@@ -30,8 +30,8 @@
#include <libpayload.h>
#include <multiboot_tables.h>
extern unsigned long loader_eax;
extern unsigned long loader_ebx;
unsigned long loader_eax; /* The value of EAX passed from the loader */
unsigned long loader_ebx; /* The value of EBX passed from the loader */
static int mb_add_memrange(struct sysinfo_t *info, unsigned long long base,
unsigned long long size, unsigned int type)