diff options
Diffstat (limited to 'src/soc/amd/common')
| -rw-r--r-- | src/soc/amd/common/vboot/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/soc/amd/common/vboot/vboot_bootblock.c | 53 |
2 files changed, 55 insertions, 0 deletions
diff --git a/src/soc/amd/common/vboot/Makefile.inc b/src/soc/amd/common/vboot/Makefile.inc index aff927a5d0..8a6f1162f8 100644 --- a/src/soc/amd/common/vboot/Makefile.inc +++ b/src/soc/amd/common/vboot/Makefile.inc @@ -4,3 +4,5 @@ verstage-y += vbnv_cmos.c romstage-y += vbnv_cmos.c ramstage-y += vbnv_cmos.c endif + +bootblock-$(CONFIG_VBOOT_STARTS_BEFORE_BOOTBLOCK) += vboot_bootblock.c diff --git a/src/soc/amd/common/vboot/vboot_bootblock.c b/src/soc/amd/common/vboot/vboot_bootblock.c new file mode 100644 index 0000000000..3fbc4ef608 --- /dev/null +++ b/src/soc/amd/common/vboot/vboot_bootblock.c @@ -0,0 +1,53 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <amdblocks/reset.h> +#include <bl_uapp/bl_syscall_public.h> +#include <console/console.h> +#include <pc80/mc146818rtc.h> +#include <security/vboot/vbnv.h> +#include <security/vboot/symbols.h> +#include <soc/psp_transfer.h> +#include <2struct.h> + +void verify_psp_transfer_buf(void) +{ + if (*(uint32_t *)_vboot2_work == VB2_SHARED_DATA_MAGIC) { + cmos_write(0x00, CMOS_RECOVERY_BYTE); + return; + } + + /* + * If CMOS is valid and the system has already been rebooted once, but + * still returns here, instead of rebooting to verstage again, assume + * that the system is in a reboot loop and halt. + */ + if ((!vbnv_cmos_failed()) && cmos_read(CMOS_RECOVERY_BYTE) == + CMOS_RECOVERY_MAGIC_VAL) + die("Error: Reboot into recovery was unsuccessful. Halting."); + + printk(BIOS_ERR, "ERROR: VBOOT workbuf not valid.\n"); + printk(BIOS_DEBUG, "Signature: %#08x\n", *(uint32_t *)_vboot2_work); + cmos_init(0); + cmos_write(CMOS_RECOVERY_MAGIC_VAL, CMOS_RECOVERY_BYTE); + warm_reset(); +} + +void show_psp_transfer_info(void) +{ + struct transfer_info_struct *info = (struct transfer_info_struct *) + (void *)(uintptr_t)_transfer_buffer; + + if (info->magic_val == TRANSFER_MAGIC_VAL) { + if ((info->psp_info & PSP_INFO_VALID) == 0) { + printk(BIOS_INFO, "No PSP info found in transfer buffer.\n"); + return; + } + + printk(BIOS_INFO, "PSP boot mode: %s\n", + info->psp_info & PSP_INFO_PRODUCTION_MODE ? + "Production" : "Development"); + printk(BIOS_INFO, "Silicon level: %s\n", + info->psp_info & PSP_INFO_PRODUCTION_SILICON ? + "Production" : "Pre-Production"); + } +} |