Patch set updated for coreboot: libpayload: store boot media information in sysinfo

[Patrick Georgi]

Patrick Georgi ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/10869

-gerrit

commit 86d6ea98cdbc6158dcafb8438f7e286ef7a78fea
Author: Patrick Georgi 
Date:   Tue Jul 14 17:15:24 2015 +0100

libpayload: store boot media information in sysinfo

Write boot media information in sysinfo, if it exists. This allows picking the
    right CBFS for further files in case there are several.

Change-Id: I75a8ee6b93f349b9f2fab1e82826aba675949c0a
    Signed-off-by: Patrick Georgi 
---
 payloads/libpayload/include/coreboot_tables.h | 11 +++++++++++
 payloads/libpayload/include/sysinfo.h         |  4 ++++
 payloads/libpayload/libc/coreboot.c           | 14 ++++++++++++++
 3 files changed, 29 insertions(+)

diff --git a/payloads/libpayload/include/coreboot_tables.h b/payloads/libpayload/include/coreboot_tables.h
index 0c516b1..be3fe48 100644
--- a/payloads/libpayload/include/coreboot_tables.h
+++ b/payloads/libpayload/include/coreboot_tables.h
@@ -257,6 +257,17 @@ struct cb_spi_flash {
    uint32_t erase_cmd;
 };

+#define CB_TAG_BOOT_MEDIA_PARAMS 0x0030
+struct cb_boot_media_params {
+	uint32_t tag;
+	uint32_t size;
+	/* offsets are relative to start of boot media */
+	uint32_t fmap_offset;
+	uint32_t cbfs_offset;
+	uint32_t cbfs_size;
+	uint32_t boot_media_size;
+};
+
 #define CB_TAG_SERIALNO		0x002a
 #define CB_MAX_SERIALNO_LENGTH	32

diff --git a/payloads/libpayload/include/sysinfo.h b/payloads/libpayload/include/sysinfo.h
index c407c3d..54f5e12 100644
--- a/payloads/libpayload/include/sysinfo.h
+++ b/payloads/libpayload/include/sysinfo.h
@@ -124,6 +124,10 @@ struct sysinfo_t {
    	uint32_t sector_size;
    	uint32_t erase_cmd;
    } spi_flash;
+	uint32_t fmap_offset;
+	uint32_t cbfs_offset;
+	uint32_t cbfs_size;
+	uint32_t boot_media_size;
    uint64_t mtc_start;
    uint32_t mtc_size;
 };
diff --git a/payloads/libpayload/libc/coreboot.c b/payloads/libpayload/libc/coreboot.c
index 8a5d3ae..3e248e1 100644
--- a/payloads/libpayload/libc/coreboot.c
+++ b/payloads/libpayload/libc/coreboot.c
@@ -220,6 +220,17 @@ static void cb_parse_spi_flash(void *ptr, struct sysinfo_t *info)
    info->spi_flash.erase_cmd = flash->erase_cmd;
 }

+static void cb_parse_boot_media_params(unsigned char *ptr,
+				       struct sysinfo_t *info)
+{
+	struct cb_boot_media_params *const bmp =
+			(struct cb_boot_media_params *)ptr;
+	info->fmap_offset = bmp->fmap_offset;
+	info->cbfs_offset = bmp->cbfs_offset;
+	info->cbfs_size = bmp->cbfs_size;
+	info->boot_media_size = bmp->boot_media_size;
+}
+
 int cb_parse_header(void *addr, int len, struct sysinfo_t *info)
 {
    struct cb_header *header;
@@ -372,6 +383,9 @@ int cb_parse_header(void *addr, int len, struct sysinfo_t *info)
    	case CB_TAG_MTC:
    		cb_parse_mtc(ptr, info);
    		break;
+		case CB_TAG_BOOT_MEDIA_PARAMS:
+			cb_parse_boot_media_params(ptr, info);
+			break;
    	default:
    		cb_parse_arch_specific(rec, info);
    		break;