[coreboot-gerrit] Change in coreboot[master]: amd/cezanne: verify transfer buffer in bootblock

[Kangheui Won (Code Review)]

Attention is currently required from: Jason Glenesk, Raul Rangel, Marshall Dawson, Felix Held.
Kangheui Won has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/52965 )

Change subject: amd/cezanne: verify transfer buffer in bootblock
......................................................................

amd/cezanne: verify transfer buffer in bootblock

Verify if transfer buffer is valid before progressing further to catch
invalid transfer buffer early.

Signed-off-by: Kangheui Won 
Change-Id: I4c470b156944b50e581dcdee47b196f46b0993f3
---
M src/soc/amd/cezanne/bootblock.c
1 file changed, 7 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/65/52965/1

diff --git a/src/soc/amd/cezanne/bootblock.c b/src/soc/amd/cezanne/bootblock.c
index 2447de6..21635c9 100644
--- a/src/soc/amd/cezanne/bootblock.c
+++ b/src/soc/amd/cezanne/bootblock.c
@@ -11,6 +11,7 @@
 #include <cpu/x86/tsc.h>
 #include <soc/iomap.h>
 #include <soc/southbridge.h>
+#include <soc/psp_transfer.h>
 #include <stdint.h>

/*
@@ -110,5 +111,11 @@
 {
    u32 val = cpuid_eax(1);
    printk(BIOS_DEBUG, "Family_Model: %08x\n", val);
+
+	if (CONFIG(VBOOT_STARTS_BEFORE_BOOTBLOCK)) {
+		verify_psp_transfer_buf();
+		show_psp_transfer_info();
+	}
+
    fch_early_init();
 }