according to ACPI 5.0 Table 15-273
Address Range Descriptor Structure,
offset 20 is 32-bit field of Extended
Attributes for Address Range Descriptor Structure.
Signed-off-by: liguang <lig.f...@cn.fujitsu.com>
---
arch/x86/include/uapi/asm/e820.h | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/arch/x86/include/uapi/asm/e820.h b/arch/x86/include/uapi/asm/e820.h
index 2d400b1..eb87284 100644
--- a/arch/x86/include/uapi/asm/e820.h
+++ b/arch/x86/include/uapi/asm/e820.h
@@ -38,6 +38,10 @@
#define E820_TYPE_NVS 4
#define E820_TYPE_UNUSABLE 5
+#define E820_ATTRIB_NV 0x2
+#define E820_ATTRIB_SLOW_ACCESS 0x4
+#define E820_ATTRIB_ERR_LOG 0x8
+
/*
* reserved RAM used by kernel itself
@@ -53,7 +57,8 @@ struct e820entry {
__u64 addr; /* start of memory segment */
__u64 size; /* size of memory segment */
__u32 type; /* type of memory segment */
-} __attribute__((packed));
+ __u32 attrib;
+};
struct e820map {
__u32 nr_map;
--
1.7.2.5
--
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