diff options
| author | Martin Roth <martinroth@chromium.org> | 2020-10-02 14:51:40 -0600 |
|---|---|---|
| committer | Edward O'Callaghan <quasisec@chromium.org> | 2020-10-08 01:05:55 +0000 |
| commit | fc33235f82a08e9ec9a0fcff0f7cba8eda1ac251 (patch) | |
| tree | 437862e278d3f82d2b9f32016027b181cd0f4627 /src | |
| parent | eb7fc4aead52d35cde6f14e0e1441e1aae2d222f (diff) | |
soc/amd/picasso: Die if the workbuf is missing two boots in a row
BUG=b:169199392
TEST=Corrupt vboot signature to force an error, see that the system
halts instead of rebooting forever.
BRANCH=Zork
Signed-off-by: Martin Roth <martinroth@chromium.org>
Change-Id: I949f94e78d25720f6cd7e81de8d030084e267f29
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45964
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/amd/picasso/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/amd/picasso/bootblock/bootblock.c | 12 |
2 files changed, 11 insertions, 2 deletions
diff --git a/src/soc/amd/picasso/Makefile.inc b/src/soc/amd/picasso/Makefile.inc index 1e9ba4a124..9c5d4d08c1 100644 --- a/src/soc/amd/picasso/Makefile.inc +++ b/src/soc/amd/picasso/Makefile.inc @@ -22,6 +22,7 @@ bootblock-y += tsc_freq.c bootblock-y += gpio.c bootblock-y += smi_util.c bootblock-y += config.c +bootblock-y += pmutil.c bootblock-y += reset.c romstage-y += i2c.c diff --git a/src/soc/amd/picasso/bootblock/bootblock.c b/src/soc/amd/picasso/bootblock/bootblock.c index 470002789f..a450544b0d 100644 --- a/src/soc/amd/picasso/bootblock/bootblock.c +++ b/src/soc/amd/picasso/bootblock/bootblock.c @@ -17,6 +17,7 @@ #include <amdblocks/amd_pci_mmconf.h> #include <acpi/acpi.h> #include <security/vboot/symbols.h> +#include <security/vboot/vbnv.h> /* vboot includes directory may not be in include path if vboot is not enabled */ #if CONFIG(VBOOT_STARTS_BEFORE_BOOTBLOCK) @@ -134,10 +135,17 @@ void bootblock_soc_init(void) #if CONFIG(VBOOT_STARTS_BEFORE_BOOTBLOCK) if (*(uint32_t *)_vboot2_work != VB2_SHARED_DATA_MAGIC) { - printk(BIOS_ERR, "ERROR: VBOOT workbuf not valid.\n"); + /* + * If 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, so halt instead. + */ + 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(); |