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* x86: prepare 64-bit architecture initialization for paravirtGlauber de Oliveira Costa2008-01-301-2/+7
| | | | | | | | | | | | | | | This patch prepares the x86_64 architecture initialization for paravirt. It requires a memory initialization step, which is done by implementing 64-bit version for machine_specific_memory_setup, and putting an ARCH_SETUP hook, for guest-dependent initialization. This last step is done akin to i386 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>
* x86: sanitize user specified e820 memmap valuesVladimir Berezniker2008-01-301-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sanitize user specified e820 memory ranges, using the same logic that is applied to the values returned by the BIOS. This ensures consistent handling regardless of the source of the memory mappings. Allows overriding portions of the memory map without specifying one in it's entirety (memmap=exactmap). E.g. marking a range of bad RAM as reserved with memmap=48M$528M BIOS supplied range BIOS-e820: 0000000000100000 - 000000007fe80000 (usable) becomes user: 0000000000100000 - 0000000021000000 (usable) user: 0000000021000000 - 0000000024000000 (reserved) user: 0000000024000000 - 000000007fe80000 (usable) Previously this did not work, as the original BIOS range was left untouched while the user defined range was appended to the end of the memory map. [ tglx: arch/x86 adaptation ] Signed-off-by: Vladimir Berezniker <vmpn@hitechman.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86: remove extern declarations for code, data, bss resourcesBernhard Walle2008-01-301-6/+5
| | | | | | | | | | | | | | | | | | | | | This patch removes the extern struct resource declarations for data_resource, code_resource and bss_resource on x86 and declares that three structures as static as done on other architectures like IA64. On i386, these structures are moved to setup_32.c (from e820_32.c) because that's code that is not specific to e820 and also required on EFI systems. That makes the "extern" reference superfluous. On x86_64, data_resource, code_resource and bss_resource are passed to e820_reserve_resources() as arguments just as done on i386 and IA64. That also avoids the "extern" reference and it's possible to make it static. Signed-off-by: Bernhard Walle <bwalle@suse.de> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@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>
* x86 e820_64.c: make 2 functions staticAdrian Bunk2008-01-301-2/+2
| | | | | | | | | | | | This patch makes the following needlessly global functions static: - e820_print_map() - early_panic() Signed-off-by: Adrian Bunk <bunk@kernel.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>
* x86: nuke a ton of unused exportsThomas Gleixner2008-01-301-1/+0
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: move debug related declarations to kdebug.hThomas Gleixner2008-01-301-0/+1
| | | | | | | Move them and fixup some users. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: clean up arch/x86/kernel/e820_64.cThomas Gleixner2008-01-301-128/+177
| | | | | | | White space and coding style cleanup. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* kexec: add BSS to resource treeBernhard Walle2007-10-221-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | Add the BSS to the resource tree just as kernel text and kernel data are in the resource tree. The main reason behind this is to avoid crashkernel reservation in that area. While it's not strictly necessary to have the BSS in the resource tree (the actual collision detection is done in the reserve_bootmem() function before), the usage of the BSS resource should be presented to the user in /proc/iomem just as Kernel data and Kernel code. Note: The patch currently is only implemented for x86 and ia64 (because efi_initialize_iomem_resources() has the same signature on i386 and ia64). [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Bernhard Walle <bwalle@suse.de> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Cc: <linux-arch@vger.kernel.org> 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>
* Intel IOMMU: Iommu Gfx workaroundKeshavamurthy, Anil S2007-10-221-0/+19
| | | | | | | | | | | | | | | | | | | | When we fix all the opensource gfx drivers to use the DMA api's, at that time we can yank this config options out. [jengelh@computergmbh.de: Kconfig fixes] Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: Andi Kleen <ak@suse.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Muli Ben-Yehuda <muli@il.ibm.com> Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Ashok Raj <ashok.raj@intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Christoph Lameter <clameter@sgi.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Use extended crashkernel command line on x86_64Bernhard Walle2007-10-191-1/+2
| | | | | | | | | | | | | | | | | | This patch removes the crashkernel parsing from arch/x86_64/kernel/machine_kexec.c and calls the generic function, introduced in the last patch, in setup_bootmem_allocator(). This is necessary because the amount of System RAM must be known in this function now because of the new syntax. Signed-off-by: Bernhard Walle <bwalle@suse.de> Cc: Andi Kleen <ak@suse.de> Cc: Vivek Goyal <vgoyal@in.ibm.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> 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>
* [x86] remove uses of magic macros for boot_params accessH. Peter Anvin2007-10-161-7/+12
| | | | | | | Instead of using magic macros for boot_params access, simply use the boot_params structure. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* x86_64: move kernelThomas Gleixner2007-10-111-0/+725
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>