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authorPeter Jones <pjones@redhat.com>2017-09-13 18:05:25 -0400
committerAlexander Graf <agraf@suse.de>2017-09-20 10:20:19 +0200
commitff98cb90514d9b787ddc097c203ac8db2941efe1 (patch)
tree18c1894c6eb53cd60889d6044a87f9b1f81a8afe /include/blk.h
parent0d6ab32e3712fe7bc2e3aaf3d93e0d5910264df3 (diff)
downloadu-boot-ff98cb90514d9b787ddc097c203ac8db2941efe1.tar.gz
part: extract MBR signature from partitions
EFI client programs need the signature information from the partition table to determine the disk a partition is on, so we need to fill that in here. Signed-off-by: Peter Jones <pjones@redhat.com> [separated from efi_loader part, and fixed build-errors for non- CONFIG_EFI_PARTITION case] Signed-off-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'include/blk.h')
-rw-r--r--include/blk.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/blk.h b/include/blk.h
index 1965812a9d..41b4d7efa8 100644
--- a/include/blk.h
+++ b/include/blk.h
@@ -8,6 +8,8 @@
#ifndef BLK_H
#define BLK_H
+#include <efi.h>
+
#ifdef CONFIG_SYS_64BIT_LBA
typedef uint64_t lbaint_t;
#define LBAFlength "ll"
@@ -41,6 +43,17 @@ enum if_type {
#define BLK_REV_SIZE 8
/*
+ * Identifies the partition table type (ie. MBR vs GPT GUID) signature
+ */
+enum sig_type {
+ SIG_TYPE_NONE,
+ SIG_TYPE_MBR,
+ SIG_TYPE_GUID,
+
+ SIG_TYPE_COUNT /* Number of signature types */
+};
+
+/*
* With driver model (CONFIG_BLK) this is uclass platform data, accessible
* with dev_get_uclass_platdata(dev)
*/
@@ -67,6 +80,11 @@ struct blk_desc {
char vendor[BLK_VEN_SIZE + 1]; /* device vendor string */
char product[BLK_PRD_SIZE + 1]; /* device product number */
char revision[BLK_REV_SIZE + 1]; /* firmware revision */
+ enum sig_type sig_type; /* Partition table signature type */
+ union {
+ uint32_t mbr_sig; /* MBR integer signature */
+ efi_guid_t guid_sig; /* GPT GUID Signature */
+ };
#if CONFIG_IS_ENABLED(BLK)
/*
* For now we have a few functions which take struct blk_desc as a