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-rw-r--r--payloads/libpayload/include/coreboot_tables.h1
-rw-r--r--payloads/libpayload/include/sysinfo.h2
-rw-r--r--payloads/libpayload/libc/coreboot.c11
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;