1  /* SPDX-License-Identifier: BSD-3-Clause */
 2  
 3  #include <libpayload-config.h>
 4  #include <arch/virtual.h>
 5  #include <assert.h>
 6  #include <libpayload.h>
 7  #include <stdio.h>
 8  #include <stdlib.h>
 9  #include <sysinfo.h>
10  #include <vb2_api.h>
11  #include <lp_vboot.h>
12  
13  struct vb2_context *vboot_get_context(void)
14  {
15  	static struct vb2_context *ctx;
16  
17  	if (ctx)
18  		return ctx;
19  
20  	die_if(lib_sysinfo.vboot_workbuf == 0, "vboot workbuf pointer is not set\n");
21  
22  	/* Use the firmware verification workbuf from coreboot. */
23  	vb2_error_t rv = vb2api_reinit(phys_to_virt(lib_sysinfo.vboot_workbuf), &ctx);
24  
25  	die_if(rv, "vboot workbuf could not be initialized, error: %#x\n", rv);
26  
27  	return ctx;
28  }
29  
30  void vboot_fail_and_reboot(struct vb2_context *ctx, uint8_t reason, uint8_t subcode)
31  {
32  	if (reason)
33  		vb2api_fail(ctx, reason, subcode);
34  
35  	printf("vboot: reboot requested (reason: %#x, subcode %#x)", reason, subcode);
36  	vb2ex_commit_data(ctx);
37  	reboot();
38  }
39  
40  int vboot_recovery_mode_enabled(void)
41  {
42  	return !!(vboot_get_context()->flags & VB2_CONTEXT_RECOVERY_MODE);
43  }