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2008-02-09x86: trivial printk optimizationsDenys Vlasenko
In arch/x86/boot/printf.c gets rid of unused tail of digits: const char *digits = "0123456789abcdefghijklmnopqrstuvwxyz"; (we are using 0-9a-f only) Uses smaller/faster lowercasing (by ORing with 0x20) if we know that we work on numbers/digits. Makes strtoul smaller, and also we are getting rid of static const char small_digits[] = "0123456789abcdefx"; static const char large_digits[] = "0123456789ABCDEFX"; since this works equally well: static const char digits[16] = "0123456789ABCDEF"; Size savings: $ size vmlinux.org vmlinux text data bss dec hex filename 877320 112252 90112 1079684 107984 vmlinux.org 877048 112252 90112 1079412 107874 vmlinux It may be also a tiny bit faster because code has less branches now, but I doubt it is measurable. [ hugh@veritas.com: uppercase pointers fix ] Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-04x86: rename LARGE_PAGE_SIZE to PMD_PAGE_SIZEAndi Kleen
Fix up all users. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-04x86 setup: print missing CPU features in cleartextH. Peter Anvin
Instead of obscure numbers, print the list of missing CPU features in cleartext. To conserve space, use a host program (mkcpustr.c) to produce a compact list of mandatory features only. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-04x86: define OBJCOPYFLAGS explicitly for each target.Ian Campbell
Do this rather than defining a global version and overriding it in almost all cases in order to make subsequent patches simpler. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-02-01x86: fix comments in vmlinux_64.ldsYinghai Lu
for bzImage, the vmlinux_64.lds still have s32 bit code, and startup_32 should be 0. fix the comment. Signed-off-by: Yinghai Lu <yinghai.lu@sun.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: unify arch/x86/boot/compressed/misc_??.cIan Campbell
Remainder of unification can occur inplace. size reports no change in arch/x86/boot/compressed/vmlinux. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Cc: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: unify variable names in arch/x86/boot/compressed/misc_??.cIan Campbell
size reports no change in arch/x86/boot/compressed/vmlinux. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Cc: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: unify headers in arch/x86/boot/compressed/misc_??.cIan Campbell
size reports no change in arch/x86/boot/compressed/vmlinux. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Cc: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: unify whitespace and comments in arch/x86/boot/compressed/misc_??.cIan Campbell
size reports no change in arch/x86/boot/compressed/vmlinux. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Cc: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: unify strings in arch/x86/boot/compressed/misc_??.cIan Campbell
There seems to be a preference for the 64 bit version so use that on 32 bit and drop the stray leading "." Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Cc: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: unify arch/x86/boot/compressed/vmlinux_??.scrIan Campbell
The files are now identical so merge them. size reports no change in arch/x86/boot/compressed/vmlinux. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Cc: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: switch to .rodata.compressed in arch/x86/boot/compressed/vmlinux_??.scrIan Campbell
vmlinux_64 and vmlinux_32.scr are now identical size shows an expected movement from .text to .rodata and 4 extra bytes of padding. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Cc: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: unify whitespace in arch/x86/boot/compressed/vmlinux_??.scrIan Campbell
size reports no change in arch/x86/boot/compressed/vmlinux. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Cc: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: unify whitespace and comments in arch/x86/boot/compressed/vmlinux_??.ldsIan Campbell
size reports no change in arch/x86/boot/compressed/vmlinux. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Cc: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: remove unneded castsJan Engelhardt
x86: remove unneeded casts Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86 setup: correct the base in the GDT_ENTRY() macroH. Peter Anvin
The GDT_ENTRY() macro in pm.c would incorrectly cut the bottom 8 bits off the base. We didn't define any bases with the bottom 8 bits nonzero, so it is a non-manifest bug, but it's still a bug. Pointed out by John Smith <johnsmith9344@gmail.com>. Cc: John Smith <johnsmith9344@gmail.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86 setup: guard the heap against invalid stack setupsH. Peter Anvin
If we use the bootloader-provided stack pointer, we might end up in a situation where the bootloader (incorrectly) pointed the stack in the middle of our heap. Catch this by simply comparing the computed heap end value to the stack pointer minus the defined stack size. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86 setup: push video mode setup as late as possibleH. Peter Anvin
Push video mode setup as late as possible; messages issued through the BIOS interface after video mode setup will either not be seen (for framebuffer modes) or will screw up the cursor (for text modes.) In particular, this makes the EDD probing message show up correctly. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86 setup: add note to use edd=off on EDD probing hangsH. Peter Anvin
Tell the user to specify edd=off in the case of EDD probing hangs. Per LKML discussion. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86 setup: add missing prototype; formatting fixH. Peter Anvin
Add prototype for cmdline_find_option_bool() missing from: x86 setup: early cmdline parser handle boolean options Also, fix up a minor formatting error in that patch. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86 setup: OK -> ok (no need to scream)H. Peter Anvin
Unnecessary capitals are shouting; no need for it here. Thus, change "OK" to "ok" and add a space. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86 setup: be more verbose when probing EDDdevzero@web.de
On early boot, probing the Bios for EDD happens without any message. Enhanced Disk Drive Services (EDD) is a mechanism to match x86 BIOS device names (int13 device 80h) to Linux device names (e.g. /dev/sda, /dev/hda) There are buggy Bios out there having problems with EDD. This can be problems with the Bios itself or with addon cards, too. This patch is adds an informational message on early boot. CONFIG_EDD is not set with defconfig, but with allmodconfig (i.e. CONFIG_EDD=m) so the EDD probe may be active on early boot on many systems nowadays. I can tell, that the probe is active on SuSE distro and with that I have seen more than one system hanging endlessly with those "black screen with a blinking cursor in the the upper left" on installation, making it difficult for the end- user to find out, what`s the issue. For sure I have seen this on FujitsuSiemens PCs with i810 and with i815 chipset. This one also honours the "quiet" bootparam. Also see: http://marc.info/?l=linux-kernel&m=119781937207969&w=2 http://marc.info/?l=linux-kernel&m=119783934032326&w=2 http://marc.info/?l=linux-kernel&m=119783678529100&w=2 Signed-off-by: Roland Kletzing <devzero@web.de> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86 setup: early cmdline parser handle boolean optionsdevzero@web.de
This patch extends the early commandline parser to support boolean options. The current version in mainline only supports parsing "option=arg" value pairs. With this it should be easy making other messages like "Uncompressing kernel" honour the "quiet" parameter, too. Signed-off-by: Roland Kletzing <devzero@web.de> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86 setup: fix constraints in segment accessor functionsH. Peter Anvin
Fix the operand constraints for the segment accessor functions, {rd,wr}{fs,gs}*. In particular, the 8-bit functions used "r" constraints instead of "q" constraints. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86 setup: display VESA graphics modes in vga=ask menuH. Peter Anvin
Display VESA graphics modes, with their mode IDs, in the vga=ask menu. Most VESA mode numbers are platform-dependent, so it helps to have an easy way to display them. Based in part on a patch by Petr Vandrovec <petr@vandrovec.name>. Cc: Petr Vandrovec <petr@vandrovec.name> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86 setup: use X86_CR0_PE macro instead of hard-coded constantH. Peter Anvin
To set CR0.PE, use the X86_CR0_PE macro defined in <asm/processor-flags.h> instead of hardcoding it as a constant (1). Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86 setup: initialize LDTR and TR to make life easier to Intel VTH. Peter Anvin
Intel VT doesn't like to engage when the protected-mode state isn't fully initialized. Make life easier for it by initializing LDTR (to null) and TR (to a dummy hunk of low memory which will never actually be touched.) Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86 setup: make PM transition more paranoid; cleanup 32-bit entryH. Peter Anvin
Make the transition to protected mode more paranoid by having back-to-back near jump (to synchronize the 386/486 prefetch queue) and far jump (to set up the code segment.) While we're at it, zero as many registers as practical (for future expandability of the 32-bit entry interface) and enter 32-bit mode with a valid stack. Note that the 32-bit code cannot rely on this stack, or we'll break all other existing users of the 32-bit entrypoint, but it may make debugging hacks easier to write. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30i386: handle an initrd in highmem (version 2)H. Peter Anvin
The boot protocol has until now required that the initrd be located in lowmem, which makes the lowmem/highmem boundary visible to the boot loader. This was exported to the bootloader via a compile-time field. Unfortunately, the vmalloc= command-line option breaks this part of the protocol; instead of adding yet another hack that affects the bootloader, have the kernel relocate the initrd down below the lowmem boundary inside the kernel itself. Note that this does not rely on HIGHMEM being enabled in the kernel. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: compile apm and voyager module only when selected in KconfigAndi Kleen
Previously the complete files were #ifdef'ed, but now handle that in the Makefile. May save a minor bit of compilation time. [ Stephen Rothwell <sfr@canb.auug.org.au>: build dependency fix ] Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: hlt on early crashIngo Molnar
H. Peter Anvin <hpa@zytor.com> wrote: > It probably should actually HLT, to avoid sucking power, and stressing > the thermal system. We're dead at this point, and the early 486's > which had problems with HLT will lock up - we don't care. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: unify arch/x86/boot/compressed/Makefile(s)Sam Ravnborg
Trivial unification of the two Makefiles. Tested doing a defconfig build for both 32 and 64 bit and no build changes occured. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: biarch support for 32 bit builds beautifiedSam Ravnborg
There were no reason to mess around with CC, AS and LD. Fixing this up avoided duplicated option for ld. A small fixlet were needed in boot/Makefile which assumed that CC were modified. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: tweak io_64.h for paravirt.Glauber de Oliveira Costa
We need something here because we can't call in and out instructions directly. However, we have to be careful, because no indirections are allowed in misc_64.c , and paravirt_ops is a kind of one. So just call it directly there Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86 vDSO: absolute relocsRoland McGrath
This updates the exceptions for absolute relocs for the new symbol name convention used for symbols extracted from the vDSO images. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: provide a DMI based port 0x80 I/O delay override.Rene Herman
x86: provide a DMI based port 0x80 I/O delay override. Certain (HP) laptops experience trouble from our port 0x80 I/O delay writes. This patch provides for a DMI based switch to the "alternate diagnostic port" 0xed (as used by some BIOSes as well) for these. David P. Reed confirmed that port 0xed works for him and provides a proper delay. The symptoms of _not_ working are a hanging machine, with "hwclock" use being a direct trigger. Earlier versions of this attempted to simply use udelay(2), with the 2 being a value tested to be a nicely conservative upper-bound with help from many on the linux-kernel mailinglist but that approach has two problems. First, pre-loops_per_jiffy calibration (which is post PIT init while some implementations of the PIT are actually one of the historically problematic devices that need the delay) udelay() isn't particularly well-defined. We could initialise loops_per_jiffy conservatively (and based on CPU family so as to not unduly delay old machines) which would sort of work, but... Second, delaying isn't the only effect that a write to port 0x80 has. It's also a PCI posting barrier which some devices may be explicitly or implicitly relying on. Alan Cox did a survey and found evidence that additionally some drivers may be racy on SMP without the bus locking outb. Switching to an inb() makes the timing too unpredictable and as such, this DMI based switch should be the safest approach for now. Any more invasive changes should get more rigid testing first. It's moreover only very few machines with the problem and a DMI based hack seems to fit that situation. This also introduces a command-line parameter "io_delay" to override the DMI based choice again: io_delay=<standard|alternate> where "standard" means using the standard port 0x80 and "alternate" port 0xed. This retains the udelay method as a config (CONFIG_UDELAY_IO_DELAY) and command-line ("io_delay=udelay") choice for testing purposes as well. This does not change the io_delay() in the boot code which is using the same port 0x80 I/O delay but those do not appear to be a problem as David P. Reed reported the problem was already gone after using the udelay version. He moreover reported that booting with "acpi=off" also fixed things and seeing as how ACPI isn't touched until after this DMI based I/O port switch I believe it's safe to leave the ones in the boot code be. The DMI strings from David's HP Pavilion dv9000z are in there already and we need to get/verify the DMI info from other machines with the problem, notably the HP Pavilion dv6000z. This patch is partly based on earlier patches from Pavel Machek and David P. Reed. Signed-off-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-11-28x86 setup: don't recalculate ss:esp unless really necessaryJens Rottmann
In order to work around old LILO versions providing an invalid ss register, the current setup code always sets up a new stack, immediately following .bss and the heap. But this breaks LOADLIN. This rewrite of the workaround checks for an invalid stack (ss!=ds) first, and leaves ss:sp alone otherwise (apart from aligning esp). [hpa note: LOADLIN has a number of arbitrary hard-coded limits that are being pushed up against. Without some major revision of LOADLIN itself it will not be sustainable keeping it alive. This gives it another brief lease on life, however. This patch also helps the cmdline truncation problem with old versions of SYSLINUX.] Signed-off-by: Jens Rottmann <JRottmann at LiPPERT-AT. de> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2007-11-12x86: do not use $(ARCH) when not neededSam Ravnborg
For x86 ARCH may say i386 or x86_64 and soon x86. Rely on CONFIG_X64_32 to select between 32/64 or just hardcode the value as appropriate. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com>
2007-11-12x86: arch/x86/Kconfig.cpu unificationSam Ravnborg
Move all CPU definitions to Kconfig.cpu Always define X86_MINIMUM_CPU_FAMILY and do the obvious code cleanup in boot/cpucheck.c Comments from: Adrian Bunk <bunk@kernel.org> incorporated. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Adrian Bunk <bunk@kernel.org> Cc: Brian Gerst <bgerst@didntduck.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com>
2007-11-04x86 setup: set %ebx == %ebp == %edi == 0 on protected mode entryH. Peter Anvin
In accordance with the newly formalized 32-bit boot protocol, set %ebx == %ebp == %edi == 0 in order to support future extensions to the protocol. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2007-11-04x86 setup: add a near jump to serialize %cr0 on 386/486H. Peter Anvin
The 386 and 486 needs a jump immediately after setting %cr0 in order to serialize the pipeline. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2007-10-27x86: Fix boot protocol KEEP_SEGMENTS check.Eric W. Biederman
The kernel only ever supports 1 version of the boot protocol so there is no need to check the boot protocol revision to see if a feature is supported. Both x86 and x86_64 support the same boot protocol so we need to implement the KEEP_SEGMENTS on x86_64 as well. It isn't just paravirt bootloaders that could use this functionality. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Vivek Goyal <vgoyal@in.ibm.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Zachary Amsden <zach@vmware.com> Cc: Andi Kleen <ak@suse.de> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-25x86 setup: sizeof() is unsigned, unbreak comparisonsH. Peter Anvin
We use signed values for limit checking since the values can go negative under certain circumstances. However, sizeof() is unsigned and forces the comparison to be unsigned, so move the comparison into the heap_free() macros so we can ensure it is a signed comparison. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2007-10-25x86 setup: handle boot loaders which set up the stack incorrectlyH. Peter Anvin
Apparently some specific versions of LILO enter the kernel with a stack pointer that doesn't match the rest of the segments. Make our best attempt at untangling the resulting mess. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2007-10-23x86: clean up setup.h and the boot codeH. Peter Anvin
Make <asm/setup.h> usable by the boot code. Clean up vestiges of the old command-line protocol from setup.h and head_32.S (it is still supported from the boot loader point of view, since it is converted to the new command-line protocol by the boot code.) Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23x86: ARRAY_SIZE cleanupAlejandro Martinez Ruiz
Signed-off-by: Alejandro Martinez Ruiz <alex@flawedcode.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-22i386: paravirt boot sequenceRusty Russell
This patch uses the updated boot protocol to do paravirtualized boot. If the boot version is >= 2.07, then it will do two things: 1. Check the bootparams loadflags to see if we should reload the segment registers and clear interrupts. This is appropriate for normal native boot and some paravirtualized environments, but inapproprate for others. 2. Check the hardware architecture, and dispatch to the appropriate kernel entrypoint. If the bootloader doesn't set this, then we simply do the normal boot sequence. Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: H. Peter Anvin <hpa@zytor.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Zachary Amsden <zach@vmware.com> Cc: Andi Kleen <ak@suse.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-20spelling fixes: arch/x86_64/Simon Arlott
Spelling fixes in arch/x86_64/. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-20spelling fixes: arch/i386/Simon Arlott
Spelling fixes in arch/i386/. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-16[x86] remove uses of magic macros for boot_params accessH. Peter Anvin
Instead of using magic macros for boot_params access, simply use the boot_params structure. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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