aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/i386/boot.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/i386/boot.txt')
-rw-r--r--Documentation/i386/boot.txt6
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/i386/boot.txt b/Documentation/i386/boot.txt
index c51314b1a463..9575de300a61 100644
--- a/Documentation/i386/boot.txt
+++ b/Documentation/i386/boot.txt
@@ -2,7 +2,7 @@
2 ---------------------------- 2 ----------------------------
3 3
4 H. Peter Anvin <hpa@zytor.com> 4 H. Peter Anvin <hpa@zytor.com>
5 Last update 2005-09-02 5 Last update 2006-11-17
6 6
7On the i386 platform, the Linux kernel uses a rather complicated boot 7On the i386 platform, the Linux kernel uses a rather complicated boot
8convention. This has evolved partially due to historical aspects, as 8convention. This has evolved partially due to historical aspects, as
@@ -35,6 +35,8 @@ Protocol 2.03: (Kernel 2.4.18-pre1) Explicitly makes the highest possible
35 initrd address available to the bootloader. 35 initrd address available to the bootloader.
36 36
37Protocol 2.04: (Kernel 2.6.14) Extend the syssize field to four bytes. 37Protocol 2.04: (Kernel 2.6.14) Extend the syssize field to four bytes.
38Protocol 2.05: (Kernel 2.6.20) Make protected mode kernel relocatable.
39 Introduce relocatable_kernel and kernel_alignment fields.
38 40
39 41
40**** MEMORY LAYOUT 42**** MEMORY LAYOUT
@@ -129,6 +131,8 @@ Offset Proto Name Meaning
1290226/2 N/A pad1 Unused 1310226/2 N/A pad1 Unused
1300228/4 2.02+ cmd_line_ptr 32-bit pointer to the kernel command line 1320228/4 2.02+ cmd_line_ptr 32-bit pointer to the kernel command line
131022C/4 2.03+ initrd_addr_max Highest legal initrd address 133022C/4 2.03+ initrd_addr_max Highest legal initrd address
1340230/4 2.05+ kernel_alignment Physical addr alignment required for kernel
1350234/1 2.05+ relocatable_kernel Whether kernel is relocatable or not
132 136
133(1) For backwards compatibility, if the setup_sects field contains 0, the 137(1) For backwards compatibility, if the setup_sects field contains 0, the
134 real value is 4. 138 real value is 4.