[XS] Change in coreboot[main]: CFR: Add version field to root struct

[Matt DeVillier (Code Review)]

Matt DeVillier has submitted this change. ( https://review.coreboot.org/c/coreboot/+/86080?usp=email )

Change subject: CFR: Add version field to root struct
......................................................................

CFR: Add version field to root struct

Add a version field to the CFR root struct so parsers can check
compatibility when parsing structs.

Change-Id: Ifcb950f1bdedc0ab925f3841befb7e7001c0f7f4
Signed-off-by: Filip Brozovic 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/86080
Tested-by: build bot (Jenkins) 
Reviewed-by: Matt DeVillier 
Reviewed-by: Angel Pons 
---
M src/commonlib/include/commonlib/cfr.h
M src/commonlib/include/commonlib/coreboot_tables.h
M src/drivers/option/cfr.c
3 files changed, 4 insertions(+), 0 deletions(-)

Approvals:
  Angel Pons: Looks good to me, approved
  Matt DeVillier: Looks good to me, but someone else must approve
  build bot (Jenkins): Verified

diff --git a/src/commonlib/include/commonlib/cfr.h b/src/commonlib/include/commonlib/cfr.h
index cc8431a..5d8b37b 100644
--- a/src/commonlib/include/commonlib/cfr.h
+++ b/src/commonlib/include/commonlib/cfr.h
@@ -49,6 +49,8 @@
  *
  */

+#define CFR_VERSION 0x00000000
+
 enum cfr_tags {
    CFR_TAG_OPTION_FORM		= 1,
    CFR_TAG_ENUM_VALUE		= 2,
diff --git a/src/commonlib/include/commonlib/coreboot_tables.h b/src/commonlib/include/commonlib/coreboot_tables.h
index def48b7..78dbe8e 100644
--- a/src/commonlib/include/commonlib/coreboot_tables.h
+++ b/src/commonlib/include/commonlib/coreboot_tables.h
@@ -602,6 +602,7 @@
 struct lb_cfr {
    uint32_t tag;
    uint32_t size;
+	uint32_t version;
    uint32_t checksum;	/* Checksum of the variable payload. */
    /* struct lb_cfr_option_form		forms[] */
 };
diff --git a/src/drivers/option/cfr.c b/src/drivers/option/cfr.c
index e833d7b..15c4fd9 100644
--- a/src/drivers/option/cfr.c
+++ b/src/drivers/option/cfr.c
@@ -307,6 +307,7 @@

cfr_root->tag = LB_TAG_CFR_ROOT;
    cfr_root->size = sizeof(*cfr_root);
+	cfr_root->version = CFR_VERSION;

current += cfr_root->size;
    while (sm_root && sm_root[i])