Load UEFI Logo into CBMEM

Signed-off-by: Michał Kopeć <[email protected]>
Dasharo · Jul 4, 2023 · d62eabf · d62eabf
1 parent 6d7caea
commit d62eabf
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Showing 3 changed files with 44 additions and 1 deletion.
diff --git a/src/commonlib/bsd/include/commonlib/bsd/cbmem_id.h b/src/commonlib/bsd/include/commonlib/bsd/cbmem_id.h
@@ -82,6 +82,7 @@
 #define CBMEM_ID_SMM_COMBUFFER	0x53534d32
 #define CBMEM_ID_TYPE_C_INFO	0x54595045
 #define CBMEM_ID_MEM_CHIP_INFO	0x5048434D
+#define CBMEM_ID_TIANOCORE_LOGO	0x42475254
 
 #define CBMEM_ID_TO_NAME_TABLE				 \
 	{ CBMEM_ID_ACPI,		"ACPI       " }, \
@@ -157,5 +158,6 @@
 	{ CBMEM_ID_FSP_LOGO,		"FSP LOGO   "}, \
 	{ CBMEM_ID_SMM_COMBUFFER,	"SMM COMBUFFER"}, \
 	{ CBMEM_ID_TYPE_C_INFO,		"TYPE_C INFO"},\
-	{ CBMEM_ID_MEM_CHIP_INFO,       "MEM CHIP INFO"}
+	{ CBMEM_ID_MEM_CHIP_INFO,       "MEM CHIP INFO"},\
+	{ CBMEM_ID_TIANOCORE_LOGO,	"UEFI LOGO  "}
 #endif /* _CBMEM_ID_H_ */
diff --git a/src/commonlib/include/commonlib/coreboot_tables.h b/src/commonlib/include/commonlib/coreboot_tables.h
@@ -87,6 +87,7 @@ enum {
 	LB_TAG_TYPE_C_INFO		= 0x0042,
 	LB_TAG_ACPI_RSDP                = 0x0043,
 	LB_TAG_PCIE			= 0x0044,
+	LB_TAG_LOGO			= 0x00a0,
 	/* The following options are CMOS-related */
 	LB_TAG_CMOS_OPTION_TABLE	= 0x00c8,
 	LB_TAG_OPTION			= 0x00c9,
@@ -573,4 +574,12 @@ struct lb_acpi_rsdp {
 	lb_uint64_t rsdp_pointer; /* Address of the ACPI RSDP */
 };
 
+/*
+ * Bootlogo header for TianoCore boot logo
+ * * size   Contains the size of the BMP file
+ */
+struct bootlogo_header {
+	uint64_t size;
+} __packed;
+
 #endif
diff --git a/src/lib/coreboot_table.c b/src/lib/coreboot_table.c
@@ -267,6 +267,7 @@ static void add_cbmem_pointers(struct lb_header *header)
 		{CBMEM_ID_FMAP, LB_TAG_FMAP},
 		{CBMEM_ID_VBOOT_WORKBUF, LB_TAG_VBOOT_WORKBUF},
 		{CBMEM_ID_TYPE_C_INFO, LB_TAG_TYPE_C_INFO},
+		{CBMEM_ID_TIANOCORE_LOGO, LB_TAG_LOGO},
 	};
 	int i;
 
@@ -403,6 +404,37 @@ void __weak lb_board(struct lb_header *header) { /* NOOP */ }
  */
 void __weak lb_spi_flash(struct lb_header *header) { /* NOOP */ }
 
+
+/*
+ * Allocator for bootlogo that prepends a header to the logo CBMEM entry
+ */
+static void *logo_cbmem_allocator(void *arg, size_t size, const union cbfs_mdata *unused)
+{
+	struct bootlogo_header header;
+	void *logo_loc;
+
+	header.size = size;
+	logo_loc = cbmem_entry_start(cbmem_entry_add((uintptr_t)arg, size + sizeof(header)));
+	memcpy(logo_loc, &header, sizeof(header));
+	return logo_loc + sizeof(header);
+}
+
+/*
+ * Loads the logo bitmap file from the BOOTSPLASH fmap region into CBMEM
+ */
+static void tianocore_logo_load(int ignored)
+{
+	size_t logo_size;
+
+	cbfs_unverified_area_alloc("BOOTSPLASH",
+				"logo.bmp",
+				logo_cbmem_allocator,
+				(void *)CBMEM_ID_TIANOCORE_LOGO,
+				&logo_size);
+}
+
+CBMEM_READY_HOOK(tianocore_logo_load);
+
 static struct lb_forward *lb_forward(struct lb_header *header,
 	struct lb_header *next_header)
 {