3 files changed, 14 insertions, 0 deletions
diff --git a/payloads/libpayload/include/coreboot_tables.h b/payloads/libpayload/include/coreboot_tables.h
index 15685264be..92e3f26180 100644
--- a/payloads/libpayload/include/coreboot_tables.h
+++ b/payloads/libpayload/include/coreboot_tables.h
@@ -202,6 +202,7 @@ struct cb_gpios {
 
 #define CB_TAG_VBNV		0x0019
 #define CB_TAG_VBOOT_HANDOFF	0x0020
+#define CB_TAG_VBOOT_WORKBUF	0x0034
 #define CB_TAG_DMA		0x0022
 #define CB_TAG_RAM_OOPS		0x0023
 #define CB_TAG_MTC		0x002b
diff --git a/payloads/libpayload/include/sysinfo.h b/payloads/libpayload/include/sysinfo.h
index 845b7c4c84..7e6e74809d 100644
--- a/payloads/libpayload/include/sysinfo.h
+++ b/payloads/libpayload/include/sysinfo.h
@@ -97,6 +97,8 @@ struct sysinfo_t {
 
 	void	*vboot_handoff;
 	u32	vboot_handoff_size;
+	void *vboot_workbuf;
+	uint32_t vboot_workbuf_size;
 
 #if CONFIG(LP_ARCH_X86)
 	int x86_rom_var_mtrr_index;
diff --git a/payloads/libpayload/libc/coreboot.c b/payloads/libpayload/libc/coreboot.c
index ba5bb27294..3982e47ec2 100644
--- a/payloads/libpayload/libc/coreboot.c
+++ b/payloads/libpayload/libc/coreboot.c
@@ -86,6 +86,14 @@ static void cb_parse_vboot_handoff(unsigned char *ptr, struct sysinfo_t *info)
 	info->vboot_handoff_size = vbho->range_size;
 }
 
+static void cb_parse_vboot_workbuf(unsigned char *ptr, struct sysinfo_t *info)
+{
+	struct lb_range *vbwb = (struct lb_range *)ptr;
+
+	info->vboot_workbuf = (void *)(uintptr_t)vbwb->range_start;
+	info->vboot_workbuf_size = vbwb->range_size;
+}
+
 static void cb_parse_vbnv(unsigned char *ptr, struct sysinfo_t *info)
 {
 	struct lb_range *vbnv = (struct lb_range *)ptr;
@@ -355,6 +363,9 @@ int cb_parse_header(void *addr, int len, struct sysinfo_t *info)
 		case CB_TAG_VBOOT_HANDOFF:
 			cb_parse_vboot_handoff(ptr, info);
 			break;
+		case CB_TAG_VBOOT_WORKBUF:
+			cb_parse_vboot_workbuf(ptr, info);
+			break;
 		case CB_TAG_MAC_ADDRS:
 			cb_parse_mac_addresses(ptr, info);
 			break;