NAK in the extreme. Not only does this break the bootloader protocol, but
there are systems in the field that break if you give e820 anything other than
a 20-byte buffer.
liguang <lig.f...@cn.fujitsu.com> wrote:
>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;
--
Sent from my Android phone with K-9 Mail. Please excuse my brevity.
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