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* Merge branch 'x86-setup-for-linus' of ↵Linus Torvalds2010-02-283-10/+8
|\ | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-setup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, setup: Don't skip mode setting for the standard VGA modes x86-64, setup: Inhibit decompressor output if video info is invalid x86, setup: When restoring the screen, update boot_params.screen_info
| * x86, setup: Don't skip mode setting for the standard VGA modesH. Peter Anvin2010-02-191-8/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code for setting standard VGA modes probes for the current mode, and skips the mode setting if the mode is 3 (color text 80x25) or 7 (mono text 80x25). Unfortunately, there are BIOSes, including the VMware BIOS, which report the previous mode if function 0F is queried while the screen is in a VESA mode, and of course, nothing can help a mode poked directly into the hardware. As such, the safe option is to set the mode anyway, and only query to see if we should be using mode 7 rather than mode 3. People who don't want any mode setting at all should probably use vga=0x0f04 (VIDEO_CURRENT_MODE). It's possible that should be the kernel default. Reported-by Rene Arends <R.R.Arends@hro.nl> Signed-off-by: H. Peter Anvin <hpa@zytor.com> LKML-Reference: <tip-*@git.kernel.org>
| * x86-64, setup: Inhibit decompressor output if video info is invalidH. Peter Anvin2010-02-181-2/+0
| | | | | | | | | | | | | | | | | | Inhibit output from the kernel decompressor if the video information is invalid. This was already the case for 32 bits, make 64 bits match. Signed-off-by: H. Peter Anvin <hpa@zytor.com> LKML-Reference: <tip-*@git.kernel.org>
| * x86, setup: When restoring the screen, update boot_params.screen_infoH. Peter Anvin2010-02-171-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we restore the screen content after a mode change, we return the cursor to its former position. However, we need to also update boot_params.screen_info accordingly, so that the decompression code knows where on the screen the cursor is. Just in case the video BIOS does something extra screwy, read the cursor position back from the BIOS instead of relying on it doing the right thing. While we're at it, make sure we cap the cursor position to the new screen coordinates. Reported-by: Wim Osterholt <wim@djo.tudelft.nl> Bugzilla-Reference: http://bugzilla.kernel.org/show_bug.cgi?id=15329 Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | Merge branch 'x86-io-for-linus' of ↵Linus Torvalds2010-02-281-9/+4
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-io-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Merge io.h x86: Simplify flush_write_buffers() x86: Clean up mem*io functions. x86-64: Use BUILDIO in io_64.h x86-64: Reorganize io_64.h x86-32: Remove _local variants of in/out from io_32.h x86-32: Move XQUAD definitions to numaq.h
| * | x86: Clean up mem*io functions.Brian Gerst2010-02-051-9/+4
| |/ | | | | | | | | | | | | | | | | | | Iomem has no special significance on x86. Use the standard mem* functions instead of trying to call other versions. Some fixups are needed to match the function prototypes. Signed-off-by: Brian Gerst <brgerst@gmail.com> LKML-Reference: <1265380629-3212-6-git-send-email-brgerst@gmail.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* / x86: Remove trailing spaces in messagesFrans Pop2010-02-071-1/+1
|/ | | | | | | | | Signed-off-by: Frans Pop <elendil@planet.nl> Cc: Avi Kivity <avi@redhat.com> Cc: x86@kernel.org LKML-Reference: <1265478443-31072-10-git-send-email-elendil@planet.nl> [ Left out the KVM bits. ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: add support for LZO-compressed kernelsAlbin Tonnerre2010-01-112-1/+8
| | | | | | | | | | | | | | | | The necessary changes to the x86 Kconfig and boot/compressed to allow the use of this new compression method Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com> Acked-by: H. Peter Anvin <hpa@zytor.com> Tested-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Tested-by: Russell King <rmk@arm.linux.org.uk> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'iommu/fixes' of ↵Ingo Molnar2009-12-282-3/+3
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into x86/urgent
| * Merge branch 'for-33' of git://repo.or.cz/linux-kbuildLinus Torvalds2009-12-172-3/+3
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-33' of git://repo.or.cz/linux-kbuild: (29 commits) net: fix for utsrelease.h moving to generated gen_init_cpio: fixed fwrite warning kbuild: fix make clean after mismerge kbuild: generate modules.builtin genksyms: properly consider EXPORT_UNUSED_SYMBOL{,_GPL}() score: add asm/asm-offsets.h wrapper unifdef: update to upstream revision 1.190 kbuild: specify absolute paths for cscope kbuild: create include/generated in silentoldconfig scripts/package: deb-pkg: use fakeroot if available scripts/package: add KBUILD_PKG_ROOTCMD variable scripts/package: tar-pkg: use tar --owner=root Kbuild: clean up marker net: add net_tstamp.h to headers_install kbuild: move utsrelease.h to include/generated kbuild: move autoconf.h to include/generated drop explicit include of autoconf.h kbuild: move compile.h to include/generated kbuild: drop include/asm kbuild: do not check for include/asm-$ARCH ... Fixed non-conflicting clean merge of modpost.c as per comments from Stephen Rothwell (modpost.c had grown an include of linux/autoconf.h that needed to be changed to generated/autoconf.h)
| | * kbuild: move utsrelease.h to include/generatedSam Ravnborg2009-12-122-2/+2
| | | | | | | | | | | | | | | | | | | | | Fix up all users of utsrelease.h Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
| | * kbuild: move compile.h to include/generatedSam Ravnborg2009-12-121-1/+1
| | | | | | | | | | | | | | | Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
* | | x86, compress: Force i386 instructions for the decompressorH. Peter Anvin2009-12-251-0/+1
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | Recently, some distros have started shipping versions of gcc which default to -march=i686. This breaks building kernels for pre-i686 machines, even if they have been selected in Kconfig, due to the generation of CMOV instructions. There isn't enough benefit to try to preserve the generation of these instructions even when selected, so simply force -march=i386 for the decompressor when building a 32-bit kernel. Reported-and-tested-by: Chris Rankin <rankincj@yahoo.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> LKML-Reference: <219280.97558.qm@web52907.mail.re2.yahoo.com>
* / x86: Regex support and known-movable symbols for relocs, fix _endH. Peter Anvin2009-12-141-28/+59
|/ | | | | | | | | | | | | | | | | | | | | | | | This adds a new category of symbols to the relocs program: symbols which are known to be relative, even though the linker emits them as absolute; this is the case for symbols that live in the linker script, which currently applies to _end. Unfortunately the previous workaround of putting _end in its own empty section was defeated by newer binutils, which remove empty sections completely. This patch also changes the symbol matching to use regular expressions instead of hardcoded C for specific patterns. This is a decidedly non-minimal patch: a modified version of the relocs program is used as part of the Syslinux build, and this is basically a backport to Linux of some of those changes; they have thus been well tested. Signed-off-by: H. Peter Anvin <hpa@zytor.com> LKML-Reference: <4AF86211.3070103@zytor.com> Acked-by: Michal Marek <mmarek@suse.cz> Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
* Merge branch 'x86-setup-for-linus' of ↵Linus Torvalds2009-12-081-0/+6
|\ | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-setup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: vgacon: Add support for setting the default cursor state vc: Add support for hiding the cursor when creating VTs x86, setup: Store the boot cursor state
| * x86, setup: Store the boot cursor stateMatthew Garrett2009-11-131-0/+6
| | | | | | | | | | | | | | | | | | Add a field to store the boot cursor state and implement this for VGA on x86. This can then be used to set the default policy for the boot console. Signed-off-by: Matthew Garrett <mjg@redhat.com> LKML-Reference: <1258142222-16092-1-git-send-email-mjg@redhat.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | Merge branch 'x86-mm-for-linus' of ↵Linus Torvalds2009-12-082-3/+3
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (36 commits) x86, mm: Correct the implementation of is_untracked_pat_range() x86/pat: Trivial: don't create debugfs for memtype if pat is disabled x86, mtrr: Fix sorting of mtrr after subtracting x86: Move find_smp_config() earlier and avoid bootmem usage x86, platform: Change is_untracked_pat_range() to bool; cleanup init x86: Change is_ISA_range() into an inline function x86, mm: is_untracked_pat_range() takes a normal semiclosed range x86, mm: Call is_untracked_pat_range() rather than is_ISA_range() x86: UV SGI: Don't track GRU space in PAT x86: SGI UV: Fix BAU initialization x86, numa: Use near(er) online node instead of roundrobin for NUMA x86, numa, bootmem: Only free bootmem on NUMA failure path x86: Change crash kernel to reserve via reserve_early() x86: Eliminate redundant/contradicting cache line size config options x86: When cleaning MTRRs, do not fold WP into UC x86: remove "extern" from function prototypes in <asm/proto.h> x86, mm: Report state of NX protections during boot x86, mm: Clean up and simplify NX enablement x86, pageattr: Make set_memory_(x|nx) aware of NX support x86, sleep: Always save the value of EFER ... Fix up conflicts (added both iommu_shutdown and is_untracked_pat_range) to 'struct x86_platform_ops') in arch/x86/include/asm/x86_init.h arch/x86/kernel/x86_init.c
| * x86: Eliminate redundant/contradicting cache line size config optionsJan Beulich2009-11-191-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rather than having X86_L1_CACHE_BYTES and X86_L1_CACHE_SHIFT (with inconsistent defaults), just having the latter suffices as the former can be easily calculated from it. To be consistent, also change X86_INTERNODE_CACHE_BYTES to X86_INTERNODE_CACHE_SHIFT, and set it to 7 (128 bytes) for NUMA to account for last level cache line size (which here matters more than L1 cache line size). Finally, make sure the default value for X86_L1_CACHE_SHIFT, when X86_GENERIC is selected, is being seen before that for the individual CPU model options (other than on x86-64, where GENERIC_CPU is part of the choice construct, X86_GENERIC is a separate option on ix86). Signed-off-by: Jan Beulich <jbeulich@novell.com> Acked-by: Ravikiran Thirumalai <kiran@scalex86.org> Acked-by: Nick Piggin <npiggin@suse.de> LKML-Reference: <4AFD5710020000780001F8F0@vpn.id2.novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86, boot: Simplify setting of the PAE bitAlexander Potashev2009-10-241-2/+1
| | | | | | | | | | | | | | | | | | A single 'movl' is shorter than the 'xorl'-'orl' pair. No change in behaviour. Signed-off-by: Alexander Potashev <aspotashev@gmail.com> LKML-Reference: <1256341043-4928-1-git-send-email-aspotashev@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | x86: Document linker script ASSERT() quirkIngo Molnar2009-10-161-0/+3
|/ | | | | | | | | | | | | | | | | | | | | | | Older binutils breaks if ASSERT() is used without a sink for the output. For example 2.14.90.0.6 is known to be broken, the link fails with: LD .tmp_vmlinux1 ld:arch/x86/kernel/vmlinux.lds:678: parse error Document this quirk in all three files that use it. See: http://marc.info/?l=linux-kbuild&m=124930110427870&w=2 See[2]: d2ba8b2 ("x86: Fix assert syntax in vmlinux.lds.S") Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Roland McGrath <roland@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Sam Ravnborg <sam@ravnborg.org> LKML-Reference: <4AD6523D.5030909@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2009-09-263-4/+8
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Remove redundant non-NUMA topology functions x86: early_printk: Protect against using the same device twice x86: Reduce verbosity of "PAT enabled" kernel message x86: Reduce verbosity of "TSC is reliable" message x86: mce: Use safer ways to access MCE registers x86: mce, inject: Use real inject-msg in raise_local x86: mce: Fix thermal throttling message storm x86: mce: Clean up thermal throttling state tracking code x86: split NX setup into separate file to limit unstack-protected code xen: check EFER for NX before setting up GDT mapping x86: Cleanup linker script using new linker script macros. x86: Use section .data.page_aligned for the idt_table. x86: convert to use __HEAD and HEAD_TEXT macros. x86: convert compressed loader to use __HEAD and HEAD_TEXT macros. x86: fix fragile computation of vsyscall address
| * x86: convert compressed loader to use __HEAD and HEAD_TEXT macros.Tim Abbott2009-09-183-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This has the consequence of changing the section name use for head code from ".text.head" to ".head.text". Linus suggested that we merge the ".text.head" section with ".text" (presumably while preserving the fact that the head code starts at 0). When I tried this it caused the kernel to not boot. Signed-off-by: Tim Abbott <tabbott@ksplice.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | kbuild: use INSTALLKERNEL to select customized installkernel scriptSam Ravnborg2009-09-201-2/+2
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace the use of CROSS_COMPILE to select a customized installkernel script with the possibility to set INSTALLKERNEL to select a custom installkernel script when running make: make INSTALLKERNEL=arm-installkernel install With this patch we are now more consistent across different architectures - they did not all support use of CROSS_COMPILE. The use of CROSS_COMPILE was a hack as this really belongs to gcc/binutils and the installkernel script does not change just because we change toolchain. The use of CROSS_COMPILE caused troubles with an upcoming patch that saves CROSS_COMPILE when a kernel is built - it would no longer be installable. [Thanks to Peter Z. for this hint] This patch undos what Ian did in commit: 0f8e2d62fa04441cd12c08ce521e84e5bd3f8a46 ("use ${CROSS_COMPILE}installkernel in arch/*/boot/install.sh") The patch has been lightly tested on x86 only - but all changes looks obvious. Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Mike Frysinger <vapier@gentoo.org> [blackfin] Acked-by: Russell King <linux@arm.linux.org.uk> [arm] Acked-by: Paul Mundt <lethal@linux-sh.org> [sh] Acked-by: "H. Peter Anvin" <hpa@zytor.com> [x86] Cc: Ian Campbell <icampbell@arcom.com> Cc: Tony Luck <tony.luck@intel.com> [ia64] Cc: Fenghua Yu <fenghua.yu@intel.com> [ia64] Cc: Hirokazu Takata <takata@linux-m32r.org> [m32r] Cc: Geert Uytterhoeven <geert@linux-m68k.org> [m68k] Cc: Kyle McMartin <kyle@mcmartin.ca> [parisc] Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> [powerpc] Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> [s390] Cc: Thomas Gleixner <tglx@linutronix.de> [x86] Cc: Ingo Molnar <mingo@redhat.com> [x86] Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* Merge branch 'x86-setup-for-linus' of ↵Linus Torvalds2009-09-144-39/+3
|\ | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-setup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, e820: Guard against array overflowed in __e820_add_region() x86, setup: remove obsolete pre-Kconfig CONFIG_VIDEO_ variables
| * x86, setup: remove obsolete pre-Kconfig CONFIG_VIDEO_ variablesH. Peter Anvin2009-06-264-39/+3
| | | | | | | | | | | | | | | | | | | | | | There were a set of pre-Kconfig configuration variables defined in the video code. There is absolutely no evidence that they have been tweaked by anybody in modern history, so just get rid of them and hope nobody notices. If someone does complain, these should be made real Kconfig variables. Reported-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | x86: add vmlinux.lds to targets in arch/x86/boot/compressed/MakefileJan Beulich2009-08-201-1/+1
| | | | | | | | | | | | | | | | | | | | The absence of vmlinux.lds here keeps .vmlinux.lds.cmd from being included, which in turn leads to it and all its dependents always getting rebuilt independent of whether they are already up-to-date. Signed-off-by: Jan Beulich <jbeulich@novell.com> LKML-Reference: <4A8D84670200007800010D31@vpn.id2.novell.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | x86: fix usage of bios intcall()Akinobu Mita2009-07-042-4/+3
|/ | | | | | | | | | | Some intcall() misuses the input biosregs as output in cf06de7b9cdd3efee7a59dced1977b3c21d43732 This fixes the problem vga=ask boot option doesn't show enough modes. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> LKML-Reference: <20090701021307.GA3127@localhost.localdomain> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2009-06-201-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (45 commits) x86, mce: fix error path in mce_create_device() x86: use zalloc_cpumask_var for mce_dev_initialized x86: fix duplicated sysfs attribute x86: de-assembler-ize asm/desc.h i386: fix/simplify espfix stack switching, move it into assembly i386: fix return to 16-bit stack from NMI handler x86, ioapic: Don't call disconnect_bsp_APIC if no APIC present x86: Remove duplicated #include's x86: msr.h linux/types.h is only required for __KERNEL__ x86: nmi: Add Intel processor 0x6f4 to NMI perfctr1 workaround x86, mce: mce_intel.c needs <asm/apic.h> x86: apic/io_apic.c: dmar_msi_type should be static x86, io_apic.c: Work around compiler warning x86: mce: Don't touch THERMAL_APIC_VECTOR if no active APIC present x86: mce: Handle banks == 0 case in K7 quirk x86, boot: use .code16gcc instead of .code16 x86: correct the conversion of EFI memory types x86: cap iomem_resource to addressable physical memory x86, mce: rename _64.c files which are no longer 64-bit-specific x86, mce: mce.h cleanup ... Manually fix up trivial conflict in arch/x86/mm/fault.c
| * x86, boot: use .code16gcc instead of .code16H. Peter Anvin2009-06-161-1/+1
| | | | | | | | | | | | | | | | | | | | Use .code16gcc to compile arch/x86/boot/bioscall.S rather than .code16, since some older versions of binutils can't generate 32-bit addressing expressions (67 prefixes) in .code16 mode, only in .code16gcc mode. Reported-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | gcov: enable GCOV_PROFILE_ALL for x86_64Peter Oberparleiter2009-06-182-0/+2
|/ | | | | | | | | | | | | | | | | | | | | | | | | | Enable gcov profiling of the entire kernel on x86_64. Required changes include disabling profiling for: * arch/kernel/acpi/realmode and arch/kernel/boot/compressed: not linked to main kernel * arch/vdso, arch/kernel/vsyscall_64 and arch/kernel/hpet: profiling causes segfaults during boot (incompatible context) Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Huang Ying <ying.huang@intel.com> Cc: Li Wei <W.Li@Sun.COM> Cc: Michael Ellerman <michaele@au1.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Heiko Carstens <heicars2@linux.vnet.ibm.com> Cc: Martin Schwidefsky <mschwid2@linux.vnet.ibm.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: WANG Cong <xiyou.wangcong@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'x86-setup-for-linus' of ↵Linus Torvalds2009-06-1018-354/+486
|\ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-setup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, setup: fix comment in the "glove box" code x86, setup: "glove box" BIOS interrupts in the video code x86, setup: "glove box" BIOS interrupts in the MCA code x86, setup: "glove box" BIOS interrupts in the EDD code x86, setup: "glove box" BIOS interrupts in the APM code x86, setup: "glove box" BIOS interrupts in the core boot code x86, setup: "glove box" BIOS calls -- infrastructure
| * Merge branch 'x86/urgent' into x86/setupH. Peter Anvin2009-05-231-16/+13
| |\ | | | | | | | | | | | | | | | | | | Resolved conflicts: arch/x86/boot/memory.c Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | x86, setup: fix comment in the "glove box" codeH. Peter Anvin2009-04-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: Comment change only The glove box is about avoiding problems with *registers* being touched, not *memory*. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | x86, setup: "glove box" BIOS interrupts in the video codeH. Peter Anvin2009-04-095-164/+151
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: BIOS proofing "Glove box" off BIOS interrupts in the video code. LKML-Reference: <49DE7F79.4030106@zytor.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Rafael J. Wysocki <rjw@sisk.pl>
| * | x86, setup: "glove box" BIOS interrupts in the MCA codeH. Peter Anvin2009-04-091-15/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: BIOS proofing "Glove box" off BIOS interrupts in the MCA code. LKML-Reference: <49DE7F79.4030106@zytor.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
| * | x86, setup: "glove box" BIOS interrupts in the EDD codeH. Peter Anvin2009-04-091-40/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: BIOS proofing "Glove box" off BIOS interrupts in the EDD code. LKML-Reference: <49DE7F79.4030106@zytor.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| * | x86, setup: "glove box" BIOS interrupts in the APM codeH. Peter Anvin2009-04-091-47/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: BIOS proofing "Glove box" off BIOS interrupts in the APM code. LKML-Reference: <49DE7F79.4030106@zytor.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au>
| * | x86, setup: "glove box" BIOS interrupts in the core boot codeH. Peter Anvin2009-04-094-86/+95
| | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: BIOS proofing "Glove box" off BIOS interrupts in the core boot code. LKML-Reference: <49DE7F79.4030106@zytor.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| * | x86, setup: "glove box" BIOS calls -- infrastructureH. Peter Anvin2009-04-096-3/+169
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: new interfaces (not yet used) For all the platforms out there, there is an infinite number of buggy BIOSes. This adds infrastructure to treat BIOS interrupts more like toxic waste and "glove box" them -- we switch out the register set, perform the BIOS interrupt, and then restore the previous state. LKML-Reference: <49DE7F79.4030106@zytor.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Rafael J. Wysocki <rjw@sisk.pl>
* | | Merge branch 'x86-kbuild-for-linus' of ↵Linus Torvalds2009-06-1012-301/+364
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-kbuild-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (46 commits) x86, boot: add new generated files to the appropriate .gitignore files x86, boot: correct the calculation of ZO_INIT_SIZE x86-64: align __PHYSICAL_START, remove __KERNEL_ALIGN x86, boot: correct sanity checks in boot/compressed/misc.c x86: add extension fields for bootloader type and version x86, defconfig: update kernel position parameters x86, defconfig: update to current, no material changes x86: make CONFIG_RELOCATABLE the default x86: default CONFIG_PHYSICAL_START and CONFIG_PHYSICAL_ALIGN to 16 MB x86: document new bzImage fields x86, boot: make kernel_alignment adjustable; new bzImage fields x86, boot: remove dead code from boot/compressed/head_*.S x86, boot: use LOAD_PHYSICAL_ADDR on 64 bits x86, boot: make symbols from the main vmlinux available x86, boot: determine compressed code offset at compile time x86, boot: use appropriate rep string for move and clear x86, boot: zero EFLAGS on 32 bits x86, boot: set up the decompression stack as early as possible x86, boot: straighten out ranges to copy/zero in compressed/head*.S x86, boot: stylistic cleanups for boot/compressed/head_64.S ... Fixed trivial conflict in arch/x86/configs/x86_64_defconfig manually
| * | | x86, boot: add new generated files to the appropriate .gitignore filesMike Galbraith2009-06-022-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git status complains of untracked (generated) files in arch/x86/boot.. # Untracked files: # (use "git add <file>..." to include in what will be committed) # # ../../arch/x86/boot/compressed/mkpiggy # ../../arch/x86/boot/compressed/piggy.S # ../../arch/x86/boot/compressed/vmlinux.lds # ../../arch/x86/boot/voffset.h # ../../arch/x86/boot/zoffset.h ..so adjust .gitignore files accordingly. Signed-off-by: Mike Galbraith <efault@gmx.de> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | | x86, boot: correct the calculation of ZO_INIT_SIZEH. Peter Anvin2009-05-202-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Correct the calculation of ZO_INIT_SIZE (the amount of memory we need during decompression). One symbol (ZO_startup_32) was missing from zoffset.h, and another (ZO_z_extract_offset) was misspelled. [ Impact: build fix ] Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | | x86, boot: correct sanity checks in boot/compressed/misc.cH. Peter Anvin2009-05-121-7/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | arch/x86/boot/compressed/misc.c contains several sanity checks on the output address. Correct constraints that are no longer correct: - the alignment test should be MIN_KERNEL_ALIGN on both 32 and 64 bits. - the 64 bit maximum address was set to 2^40, which was the limit of one specific x86-64 implementation. Change the test to 2^46, the current Linux limit, and at least try to test the end rather than the beginning. - for non-relocatable kernels, test against LOAD_PHYSICAL_ADDR on both 32 and 64 bits. [ Impact: fix potential boot failure due to invalid tests ] Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | | x86: add extension fields for bootloader type and versionH. Peter Anvin2009-05-111-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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, boot: make kernel_alignment adjustable; new bzImage fieldsH. Peter Anvin2009-05-113-8/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the kernel_alignment field adjustable; this allows us to set it to a large value (intended to be 16 MB to avoid ZONE_DMA contention, memory holes and other weirdness) while a smart bootloader can still force a loading at a lesser alignment if absolutely necessary. Also export pref_address (preferred loading address, corresponding to the link-time address) and init_size, the total amount of linear memory the kernel will require during initialization. [ Impact: allows better kernel placement, gives bootloader more info ] Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | | x86, boot: remove dead code from boot/compressed/head_*.SH. Peter Anvin2009-05-112-12/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove a couple of lines of dead code from arch/x86/boot/compressed/head_*.S; all of these update registers that are dead in the current code. [ Impact: cleanup ] Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | | x86, boot: use LOAD_PHYSICAL_ADDR on 64 bitsH. Peter Anvin2009-05-111-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use LOAD_PHYSICAL_ADDR instead of CONFIG_PHYSICAL_START in the 64-bit decompression code, for equivalence with the 32-bit code. [ Impact: cleanup, increases code similarity ] Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | | x86, boot: make symbols from the main vmlinux availableH. Peter Anvin2009-05-112-11/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make symbols from the main vmlinux, as opposed to just compressed/vmlinux, available to header.S. Also, export a few additional symbols. This will be used in a subsequent patch to export the total memory footprint of the kernel. [ Impact: enable future enhancement ] Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | | x86, boot: determine compressed code offset at compile timeH. Peter Anvin2009-05-085-60/+123
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Determine the compressed code offset (from the kernel runtime address) at compile time. This allows some minor optimizations in arch/x86/boot/compressed/head_*.S, but more importantly it makes this value available to the build process, which will enable a future patch to export the necessary linear memory footprint into the bzImage header. [ Impact: cleanup, future patch enabling ] Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | | x86, boot: use appropriate rep string for move and clearH. Peter Anvin2009-05-082-18/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the pre-decompression code, use the appropriate largest possible rep movs and rep stos to move code and clear bss, respectively. For reverse copy, do note that the initial values are supposed to be the address of the first (highest) copy datum, not one byte beyond the end of the buffer. rep strings are not necessarily the fastest way to perform these operations on all current processors, but are likely to be in the future, and perhaps more importantly, we want to encourage the architecturally right thing to do here. This also fixes a couple of trivial inefficiencies on 64 bits. [ Impact: trivial performance enhancement, increase code similarity ] Signed-off-by: H. Peter Anvin <hpa@zytor.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 13:25:02 +0000