coreboot-kgpe-d16/payloads/libpayload/libc/lp_vboot.c

44 lines
1.0 KiB
C

/* SPDX-License-Identifier: BSD-3-Clause */
#include <libpayload-config.h>
#include <arch/virtual.h>
#include <assert.h>
#include <libpayload.h>
#include <stdio.h>
#include <stdlib.h>
#include <sysinfo.h>
#include <vb2_api.h>
#include <lp_vboot.h>
struct vb2_context *vboot_get_context(void)
{
static struct vb2_context *ctx;
if (ctx)
return ctx;
die_if(lib_sysinfo.vboot_workbuf == 0, "vboot workbuf pointer is not set\n");
/* Use the firmware verification workbuf from coreboot. */
vb2_error_t rv = vb2api_reinit(phys_to_virt(lib_sysinfo.vboot_workbuf), &ctx);
die_if(rv, "vboot workbuf could not be initialized, error: %#x\n", rv);
return ctx;
}
void vboot_fail_and_reboot(struct vb2_context *ctx, uint8_t reason, uint8_t subcode)
{
if (reason)
vb2api_fail(ctx, reason, subcode);
printf("vboot: reboot requested (reason: %#x, subcode %#x)", reason, subcode);
vb2ex_commit_data(ctx);
reboot();
}
int vboot_recovery_mode_enabled(void)
{
return !!(vboot_get_context()->flags & VB2_CONTEXT_RECOVERY_MODE);
}