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update boot spec to 2.07

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Updates for version 2.07 of the boot protocol.  This includes:

load_flags.KEEP_SEGMENTS- flag to request/inhibit segment reloads
hardware_subarch	- what subarchitecture we're booting under
hardware_subarch_data	- per-architecture data

The intention of these changes is to make booting a paravirtualized
kernel work via the normal Linux boot protocol.

Signed-off-by: Jeremy Fitzhardinge <[email protected]>
Signed-off-by: Rusty Russell <[email protected]>
Acked-by: H. Peter Anvin <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Vivek Goyal <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Rusty Russell 2007-10-21 16:41:33 -07:00 • committed by Linus Torvalds
commit e5371ac566
3 changed files with 47 additions and 3 deletions
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9
include/asm-x86/bootparam.h
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@ -28,8 +28,9 @@ struct setup_header {
u16 kernel_version;
u8 type_of_loader;
u8 loadflags;
#define LOADED_HIGH 0x01
#define CAN_USE_HEAP 0x80
#define LOADED_HIGH (1<<0)
#define KEEP_SEGMENTS (1<<6)
#define CAN_USE_HEAP (1<<7)
u16 setup_move_size;
u32 code32_start;
u32 ramdisk_image;
@ -41,6 +42,10 @@ struct setup_header {
u32 initrd_addr_max;
u32 kernel_alignment;
u8 relocatable_kernel;
u8 _pad2[3];
u32 cmdline_size;
u32 hardware_subarch;
u64 hardware_subarch_data;
} __attribute__((packed));
struct sys_desc_table {