From: Yinghai Lu <yinghai@kernel.org>
To: Simon Horman <horms@verge.net.au>,
"H. Peter Anvin" <hpa@zytor.com>, Vivek Goyal <vgoyal@redhat.com>,
"Eric W. Biederman" <ebiederm@xmission.com>
Cc: Yinghai Lu <yinghai@kernel.org>, kexec@lists.infradead.org
Subject: [PATCH v8 2/7] kexec, x86: add boot header member for version 2.12
Date: Wed, 30 Jan 2013 13:25:15 -0800 [thread overview]
Message-ID: <1359581120-24397-3-git-send-email-yinghai@kernel.org> (raw)
In-Reply-To: <1359581120-24397-1-git-send-email-yinghai@kernel.org>
will use ext_ramdisk_image/size, and xloadflags to put
ramdisk and bzImage high for 64bit.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
---
include/x86/x86-linux.h | 26 +++++++++++++++++++++-----
1 file changed, 21 insertions(+), 5 deletions(-)
diff --git a/include/x86/x86-linux.h b/include/x86/x86-linux.h
index ea11042..0949dc2 100644
--- a/include/x86/x86-linux.h
+++ b/include/x86/x86-linux.h
@@ -32,7 +32,7 @@ struct drive_info_struct {
};
struct sys_desc_table {
uint16_t length;
- uint8_t table[318];
+ uint8_t table[30];
};
struct apm_bios_info {
@@ -112,6 +112,10 @@ struct x86_linux_param_header {
struct apm_bios_info apm_bios_info; /* 0x40 */
struct drive_info_struct drive_info; /* 0x80 */
struct sys_desc_table sys_desc_table; /* 0xa0 */
+ uint32_t ext_ramdisk_image; /* 0xc0 */
+ uint32_t ext_ramdisk_size; /* 0xc4 */
+ uint32_t ext_cmd_line_ptr; /* 0xc8 */
+ uint8_t reserved4_1[0x1e0 - 0xcc]; /* 0xcc */
uint32_t alt_mem_k; /* 0x1e0 */
uint8_t reserved5[4]; /* 0x1e4 */
uint8_t e820_map_nr; /* 0x1e8 */
@@ -175,11 +179,18 @@ struct x86_linux_param_header {
/* 2.04+ */
uint32_t kernel_alignment; /* 0x230 */
uint8_t relocatable_kernel; /* 0x234 */
- uint8_t reserved15[3]; /* 0x235 */
+ uint8_t min_alignment; /* 0x235 */
+ uint16_t xloadflags; /* 0x236 */
uint32_t cmdline_size; /* 0x238 */
uint32_t hardware_subarch; /* 0x23C */
uint64_t hardware_subarch_data; /* 0x240 */
- uint8_t reserved16[0x290 - 0x248]; /* 0x248 */
+ uint32_t payload_offset; /* 0x248 */
+ uint32_t payload_length; /* 0x24C */
+ uint64_t setup_data; /* 0x250 */
+ uint64_t pref_address; /* 0x258 */
+ uint32_t init_size; /* 0x260 */
+ uint32_t handover_offset; /* 0x264 */
+ uint8_t reserved16[0x290 - 0x268]; /* 0x268 */
uint32_t edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]; /* 0x290 */
#endif
struct e820entry e820_map[E820MAX]; /* 0x2d0 */
@@ -196,7 +207,11 @@ struct x86_linux_faked_param_header {
};
struct x86_linux_header {
- uint8_t reserved1[0x1f1]; /* 0x000 */
+ uint8_t reserved1[0xc0]; /* 0x000 */
+ uint32_t ext_ramdisk_image; /* 0x0c0 */
+ uint32_t ext_ramdisk_size; /* 0x0c4 */
+ uint32_t ext_cmd_line_ptr; /* 0x0c8 */
+ uint8_t reserved1_1[0x1f1-0xcc]; /* 0x0cc */
uint8_t setup_sects; /* 0x1f1 */
uint16_t root_flags; /* 0x1f2 */
uint32_t syssize; /* 0x1f4 */
@@ -229,7 +244,8 @@ struct x86_linux_header {
uint32_t kernel_alignment; /* 0x230 */
uint8_t relocatable_kernel; /* 0x234 */
- uint8_t reserved6[3]; /* 0x235 */
+ uint8_t min_alignment; /* 0x235 */
+ uint16_t xloadflags; /* 0x236 */
uint32_t cmdline_size; /* 0x238 */
uint32_t hardware_subarch; /* 0x23C */
uint64_t hardware_subarch_data; /* 0x240 */
--
1.7.10.4
_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec
next prev parent reply other threads:[~2013-01-30 21:25 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-30 21:25 [PATCH v8 0/7] kexec: put bzImage and ramdisk above 4G for x86 64bit Yinghai Lu
2013-01-30 21:25 ` [PATCH v8 1/7] kexec, x86: set booloader id in setup_header Yinghai Lu
2013-01-30 21:25 ` Yinghai Lu [this message]
2013-01-30 21:25 ` [PATCH v8 3/7] kexec, x86: clean boot_params area for entry-32bit path Yinghai Lu
2013-01-30 21:34 ` H. Peter Anvin
2013-01-30 22:09 ` Yinghai Lu
2013-01-30 22:11 ` H. Peter Anvin
2013-01-30 21:25 ` [PATCH v8 4/7] kexec, x86: Fix bzImage real-mode booting Yinghai Lu
2013-01-30 21:25 ` [PATCH v8 5/7] kexec, x86: put ramdisk/cmd_line above 4G for 64bit bzImage Yinghai Lu
2013-01-30 21:25 ` [PATCH v8 6/7] kexec, x86_64: Load bzImage64 above 4G Yinghai Lu
2013-01-30 21:25 ` [PATCH v8 7/7] kexec, x86: handle Crash low kernel range Yinghai Lu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1359581120-24397-3-git-send-email-yinghai@kernel.org \
--to=yinghai@kernel.org \
--cc=ebiederm@xmission.com \
--cc=horms@verge.net.au \
--cc=hpa@zytor.com \
--cc=kexec@lists.infradead.org \
--cc=vgoyal@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox