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* x86, doc only: Correct real-mode kernel header offset for init_sizeDarren Hart2011-07-121-1/+1
| | | | | | | | | | | | The real-mode kernel header init_size field is located at 0x260 per the field listing in th e"REAL-MODE KERNEL HEADER" section. It is listed as 0x25c in the "DETAILS OF HEADER FIELDS" section, which overlaps with pref_address. Correct the details listing to 0x260. Signed-off-by: Darren Hart <dvhart@linux.intel.com> Link: http://lkml.kernel.org/r/541cf88e2dfe5b8186d8b96b136d892e769a68c1.1310441260.git.dvhart@linux.intel.com CC: H. Peter Anvin <hpa@zytor.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
* x86: support XZ-compressed kernelLasse Collin2011-01-131-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | This integrates the XZ decompression code to the x86 pre-boot code. mkpiggy.c is updated to reserve about 32 KiB more buffer safety margin for kernel decompression. It is done unconditionally for all decompressors to keep the code simpler. The XZ decompressor needs around 30 KiB of heap, so the heap size is increased to 32 KiB on both x86-32 and x86-64. Documentation/x86/boot.txt is updated to list the XZ magic number. With the x86 BCJ filter in XZ, XZ-compressed x86 kernel tends to be a few percent smaller than the equivalent LZMA-compressed kernel. Signed-off-by: Lasse Collin <lasse.collin@tukaani.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Alain Knaff <alain@knaff.lu> Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com> Cc: Phillip Lougher <phillip@lougher.demon.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86: Add CE4100 platform supportThomas Gleixner2010-11-121-0/+1
| | | | | | | | | | Add CE4100 platform support. CE4100 needs early setup like moorestown. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com> LKML-Reference: <94720fd7f5564a12ebf202cf2c4f4c0d619aab35.1289331834.git.dirk.brandewie@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86: Add hardware_subarch ID for MoorestownPan, Jacob jun2009-08-311-0/+1
| | | | | | | | | | x86 bootprotocol 2.07 has introduced hardware_subarch ID in the boot parameters provided by FW. We use it to identify Moorestown platforms. [ tglx: Cleanup and paravirt fix ] Signed-off-by: Jacob Pan <jacob.jun.pan@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86: add extension fields for bootloader type and versionH. Peter Anvin2009-05-111-7/+52
| | | | | | | | | | | | | | | | | | | | | A long ago, in days of yore, it all began with a god named Thor. There were vikings and boats and some plans for a Linux kernel header. Unfortunately, a single 8-bit field was used for bootloader type and version. This has generally worked without *too* much pain, but we're getting close to flat running out of ID fields. Add extension fields for both type and version. The type will be extended if it the old field is 0xE; the version is a simple MSB extension. Keep /proc/sys/kernel/bootloader_type containing (type << 4) + (ver & 0xf) for backwards compatiblity, but also add /proc/sys/kernel/bootloader_version which contains the full version number. [ Impact: new feature to support more bootloaders ] Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* x86: document new bzImage fieldsH. Peter Anvin2009-05-111-4/+65
| | | | | | | | Document the new bzImage fields for kernel memory placement. [ Impact: adds documentation ] Signed-off-by: H. Peter Anvin <hpa@zytor.com>
*-. Merge branches 'x86/apic', 'x86/cpu', 'x86/fixmap', 'x86/mm', 'x86/sched', ↵Ingo Molnar2009-03-041-1/+4
|\ \ | | | | | | | | | 'x86/setup-lzma', 'x86/signal' and 'x86/urgent' into x86/core
| * | bzip2/lzma: update boot protocol specificationH. Peter Anvin2009-01-141-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: documentation Update the boot protocol specification to include the currently supported file formats and their magic numbers. Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
* | | Documentation/x86/boot.txt: modify fieldnameBaodong Chen2009-01-151-6/+7
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | Modify field names to the right ones: - start_sys was changed to start_sys_seg - iinitrd_addr_max was changed to ramdisk_max - pad2 was changed to pad2 and pad3 - readmode_swtch was changed to realmode_swtch Signed-off-by: Baodong Chen <[email]chenbdchenbd@gmail.com[email]> Acked-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | Documentation/x86/boot.txt: payload length was changed to payload_lengthBaodong Chen2009-01-041-1/+1
|/ | | | | | Signed-off-by: Baodong Chen <[email]chenbdchenbd@gmail.com[email]> Acked-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: documentation fix regarding boot protocolPhilipp Kohlbecher2008-12-161-2/+2
| | | | | | | | | | | | | | | Impact: clarify documentation Documentation/x86/boot.txt describes payload_offset as the offset from the end of the real-mode code. In fact, it is more accurately described as the offset from the beginning of the protected-mode code, as (a) this is how it is actually calculated and (b) the padding after the real-mode code is not included in the offset. Signed-off-by: Philipp Kohlbecher <xt28@gmx.de> Acked-by: Ian Campbell <ijc@hellion.org.uk> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86/doc: spelling fix for grubKOSAKI Motohiro2008-11-111-1/+1
| | | | | | | | | | Impact: documentation fix I met okuji-san (GRUB maintainer) yesterday. He said GRuB isn't correct spelled and he want to fix it. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: doc: boot.txt: fix the size of the start_sys fieldH. Peter Anvin2008-07-221-1/+1
| | | | | | The start_sys field is two bytes, not four. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* x86: doc: move x86-generic documentation from Doc/x86/i386H. Peter Anvin2008-07-221-0/+900
The boot protocol, USB legacy support, and zero-page documentation is common to the x86 platform, not i386-specific. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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