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2008-07-24x86: fix up a comment in ack_APIC_irq()Maciej W. Rozycki1-3/+1
Adjust a comment in ack_APIC_irq() according to the recent removal of CONFIG_X86_GOOD_APIC. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-24x86: PIC, L-APIC and I/O APIC debug informationMaciej W. Rozycki1-1/+0
Dump all the PIC, local APIC and I/O APIC information at the fs_initcall() level, which is after ACPI (if used) has initialised PCI information, making the point of invocation consistent across MP-table and ACPI platforms. Remove explicit calls to print_IO_APIC() from elsewhere. Make the interface of all the functions involved consistent between 32-bit and 64-bit versions and make them all static by default by the means of a New-and-Improved(TM) __apicdebuginit() macro. Note that like print_IO_APIC() all these only output anything if "apic=debug" has been passed to the kernel through the command line. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: Chuck Ebbert <cebbert@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-24x86/paravirt/xen: properly fill out the ldt opsJeremy Fitzhardinge2-1/+22
LTP testing showed that Xen does not properly implement sys_modify_ldt(). This patch does the final little bits needed to make the ldt work properly. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-24Merge branch 'sched/for-linus' of ↵Linus Torvalds1-3/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: hrtick_enabled() should use cpu_active() sched, x86: clean up hrtick implementation sched: fix build error, provide partition_sched_domains() unconditionally sched: fix warning in inc_rt_tasks() to not declare variable 'rq' if it's not needed cpu hotplug: Make cpu_active_map synchronization dependency clear cpu hotplug, sched: Introduce cpu_active_map and redo sched domain managment (take 2) sched: rework of "prioritize non-migratable tasks over migratable ones" sched: reduce stack size in isolated_cpu_setup() Revert parts of "ftrace: do not trace scheduler functions" Fixed up conflicts in include/asm-x86/thread_info.h (due to the TIF_SINGLESTEP unification vs TIF_HRTICK_RESCHED removal) and kernel/sched_fair.c (due to cpu_active_map vs for_each_cpu_mask_nr() introduction).
2008-07-24Merge branch 'cpus4096-for-linus' of ↵Linus Torvalds2-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'cpus4096-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (31 commits) NR_CPUS: Replace NR_CPUS in speedstep-centrino.c cpumask: Provide a generic set of CPUMASK_ALLOC macros, FIXUP NR_CPUS: Replace NR_CPUS in cpufreq userspace routines NR_CPUS: Replace per_cpu(..., smp_processor_id()) with __get_cpu_var NR_CPUS: Replace NR_CPUS in arch/x86/kernel/genapic_flat_64.c NR_CPUS: Replace NR_CPUS in arch/x86/kernel/genx2apic_uv_x.c NR_CPUS: Replace NR_CPUS in arch/x86/kernel/cpu/proc.c NR_CPUS: Replace NR_CPUS in arch/x86/kernel/cpu/mcheck/mce_64.c cpumask: Optimize cpumask_of_cpu in lib/smp_processor_id.c, fix cpumask: Use optimized CPUMASK_ALLOC macros in the centrino_target cpumask: Provide a generic set of CPUMASK_ALLOC macros cpumask: Optimize cpumask_of_cpu in lib/smp_processor_id.c cpumask: Optimize cpumask_of_cpu in kernel/time/tick-common.c cpumask: Optimize cpumask_of_cpu in drivers/misc/sgi-xp/xpc_main.c cpumask: Optimize cpumask_of_cpu in arch/x86/kernel/ldt.c cpumask: Optimize cpumask_of_cpu in arch/x86/kernel/io_apic_64.c cpumask: Replace cpumask_of_cpu with cpumask_of_cpu_ptr Revert "cpumask: introduce new APIs" cpumask: make for_each_cpu_mask a bit smaller net: Pass reference to cpumask variable in net/sunrpc/svc.c ... Fix up trivial conflicts in drivers/cpufreq/cpufreq.c manually
2008-07-23x86: mm/pgtable_32.c declare set_pmd_pfn before they get usedJaswinder Singh1-0/+1
Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
2008-07-23x86: mm/pageattr.c declare arch_report_meminfo before they get usedJaswinder Singh1-0/+2
declared arch_report_meminfo() in asm-x86/pgtable.h as it will be also accessible by fs/proc/proc_misc.c Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
2008-07-23x86: mm/fault.c declare do_page_fault before they get usedJaswinder Singh1-0/+4
declared do_page_fault() in asm-x86/trap.h for both X86_32 and X86_64 removed do_invalid_op declaration from mm/fault.c as it is already declared in asm-x86/trap.h Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
2008-07-23x86: mm/init_XX.c declare functions before they get usedJaswinder Singh2-0/+2
included <asm/smp.h> in mm/init_32.c for zap_low_mappings() declared free_initmem() in asm-x86/page_XX.h Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
2008-07-23x86: vm86_32.c declare functions before they get usedJaswinder Singh1-1/+4
declared following syscalls in asm-x86/syscalls.h: sys_vm86old, sys_vm86 Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
2008-07-23x86: apic_XX.c declare functions before they get usedJaswinder Singh2-0/+15
declared following smp interrupts in asm-x86/hw_irq.h: smp_apic_timer_interrupt, smp_spurious_interrupt, smp_error_interrupt Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
2008-07-22x86: consolidate header guardsVegard Nossum2-6/+6
This patch consolidates the header guard names which are also used externally, i.e. in .c files. Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
2008-07-22x86: consolidate header guardsVegard Nossum282-846/+846
This patch is the result of an automatic script that consolidates the format of all the headers in include/asm-x86/. The format: 1. No leading underscore. Names with leading underscores are reserved. 2. Pathname components are separated by two underscores. So we can distinguish between mm_types.h and mm/types.h. 3. Everything except letters and numbers are turned into single underscores. Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
2008-07-22x86: fix spurious '#' in kvm headerVegard Nossum1-1/+1
Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
2008-07-22x64, apic: use generic apic_write() for ack_APIC_irq()Suresh Siddha1-4/+0
I tested tip/master and found an issue (patch attached) for x2apic support. This is not because of the recent merges we had, but because of something(where we still access memory based interface after enabling x2apic mode) that slipped through my earlier tests. Probably it is a good idea to unmap the memory mapped interface, once we switch to x2apic mode. That will catch the issues much earlier. I will post another patch for this. ack_APIC_irq() is used at too many generic places (and not just during irq_chip handling!) to use the native_apic_mem_write(). For ex, this will break x2apic based systems. Fix ack_APIC_irq() to use the generic apic_write() even for 64-bit. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: suresh.b.siddha@intel.com Cc: yong.y.wang@linux.intel.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-22x86: common.c declare idle_regs before they get usedJaswinder Singh1-0/+2
Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
2008-07-22x86: proc.c declare cpuinfo_op before they get usedJaswinder Singh1-0/+2
Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
2008-07-22x86: ptrace.c declare functions before they get usedJaswinder Singh1-0/+3
Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
2008-07-22x86: i387.c declare dump_fpu() before they get usedJaswinder Singh1-0/+1
Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
2008-07-22x86: pci-nommu.c declare nommu_dma_ops before they get usedJaswinder Singh1-0/+1
Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
2008-07-22x86: pci-dma.c declare iommu_bio_merge before they get usedJaswinder Singh2-1/+2
moved iommu_bio_merge from io_64.h to io.h because it is required for both. Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
2008-07-22x86: e820.c declare pci_mem_start before they get usedJaswinder Singh1-0/+1
Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
2008-07-22x86: setup.c declare saved_video_mode before they get usedJaswinder Singh1-0/+1
Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
2008-07-22x86: time_XX.c declare functions before they get usedJaswinder Singh2-1/+6
Declare time_init() in asm-x86/time.h Also did cleanup in asm-x86/timer.h : timer_ack is only required for X86_32 int recalibrate_cpu_khz(void) is for X86_32 Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
2008-07-22x86: signal_XX.c declare do_notify_resume before they get usedJaswinder Singh1-0/+3
Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
2008-07-22x86: process_32.c declare cpu_number before they get usedJaswinder Singh1-1/+3
Moved DECLARE_PER_CPU(int, cpu_number) from CONFIG_X86_32_SMP to CONFIG_X86_32 because cpu_number is required for both. And include asm/smp.h in process_32.c Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
2008-07-22x86: Introducing asm/syscalls.hJaswinder Singh1-0/+90
Declaring arch-dependent syscalls for x86 architecture Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
2008-07-22x86, cyrix: debugIngo Molnar1-0/+8
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-22x86: add PTE_FLAGS_MASKJeremy Fitzhardinge3-3/+6
PTE_PFN_MASK was getting lonely, so I made it a friend. Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-22x86: rename PTE_MASK to PTE_PFN_MASKJeremy Fitzhardinge7-18/+18
Rusty, in his peevish way, complained that macros defining constants should have a name which somewhat accurately reflects the actual purpose of the constant. Aside from the fact that PTE_MASK gives no clue as to what's actually being masked, and is misleadingly similar to the functionally entirely different PMD_MASK, PUD_MASK and PGD_MASK, I don't really see what the problem is. But if this patch silences the incessent noise, then it will have achieved its goal (TODO: write test-case). Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-22x86: fix pte_flags() to only return flags, fix lguest (updated)Rusty Russell2-1/+9
(Jeremy said: rusty: use PTE_MASK rusty: use PTE_MASK rusty: use PTE_MASK When I asked: jsgf: does that include the NX flag? He responded eloquently: rusty: use PTE_MASK rusty: use PTE_MASK yes, it's the official constant of masking flags out of ptes ) Change a15af1c9ea2750a9ff01e51615c45950bad8221b 'x86/paravirt: add pte_flags to just get pte flags' removed lguest's private pte_flags() in favor of a generic one. Unfortunately, the generic one doesn't filter out the non-flags bits: this results in lguest creating corrupt shadow page tables and blowing up host memory. Since noone is supposed to use the pfn part of pte_flags(), it seems safest to always do the filtering. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-and-morning-tea-spilled-by: Ingo Molnar <mingo@elte.hu>
2008-07-22x86: add apic probe for genapic 64bit, v2Yinghai Lu1-0/+1
introducing an APIC handling probing abstraction: static struct genapic *apic_probe[] __initdata = { &apic_x2apic_uv_x, &apic_x2apic_phys, &apic_x2apic_cluster, &apic_physflat, NULL, }; This way we can remove UV, x2apic specific code from genapic_64.c and move them to their specific genapic files. [ v2: fix compiling when CONFIG_ACPI is not set ] Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Jack Steiner <steiner@sgi.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-22Merge branch 'linus' into x86/x2apicIngo Molnar44-288/+1034
2008-07-21x86: convert Dprintk to pr_debugThomas Gleixner2-5/+3
There are a couple of places where (P)Dprintk is used which is an old compile time enabled printk wrapper. Convert it to the generic pr_debug(). Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-07-21Merge branch 'linus' into cpus4096-for-linusIngo Molnar3-24/+57
Conflicts: net/sunrpc/svc.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-21Merge branch 'x86/paravirt-spinlocks' into x86/for-linusIngo Molnar4-16/+148
2008-07-21Merge branches 'x86/urgent', 'x86/amd-iommu', 'x86/apic', 'x86/cleanups', ↵Ingo Molnar41-273/+907
'x86/core', 'x86/cpu', 'x86/fixmap', 'x86/gart', 'x86/kprobes', 'x86/memtest', 'x86/modules', 'x86/nmi', 'x86/pat', 'x86/reboot', 'x86/setup', 'x86/step', 'x86/unify-pci', 'x86/uv', 'x86/xen' and 'xen-64bit' into x86/for-linus
2008-07-21Merge branch 'linus' into xen-64bitIngo Molnar3-24/+57
2008-07-21Merge branch 'linus' into x86/paravirt-spinlocksIngo Molnar3-24/+57
2008-07-21KVM: fix exception entry / build bug, on 64-bitIngo Molnar1-3/+5
-tip testing found this build bug: arch/x86/kvm/built-in.o:(.text.fixup+0x1): relocation truncated to fit: R_X86_64_32 against `.text' arch/x86/kvm/built-in.o:(.text.fixup+0xb): relocation truncated to fit: R_X86_64_32 against `.text' arch/x86/kvm/built-in.o:(.text.fixup+0x15): relocation truncated to fit: R_X86_64_32 against `.text' arch/x86/kvm/built-in.o:(.text.fixup+0x1f): relocation truncated to fit: R_X86_64_32 against `.text' arch/x86/kvm/built-in.o:(.text.fixup+0x29): relocation truncated to fit: R_X86_64_32 against `.text' Introduced by commit 4ecac3fd. The problem is that 'push' will default to 32-bit, which is not wide enough as a fixup address. (and which would crash on any real fixup event even if it was wide enough) Introduce KVM_EX_PUSH to get the proper address push width on 64-bit too. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-21Merge branch 'linus' into x86/urgentIngo Molnar3-24/+57
2008-07-20KVM: Prefix some x86 low level function with kvm_, to avoid namespace issuesAvi Kivity1-14/+12
Fixes compilation with CONFIG_VMI enabled. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: lazily evaluate segment registersAvi Kivity1-7/+3
Instead of prefetching all segment bases before emulation, read them at the last moment. Since most of them are unneeded, we save some cycles on Intel machines where this is a bit expensive. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: simplify rip relative decodingAvi Kivity1-0/+1
rip relative decoding is relative to the instruction pointer of the next instruction; by moving address adjustment until after decoding is complete, we remove the need to determine the instruction size. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: Add coalesced MMIO support (x86 part)Laurent Vivier1-0/+1
This patch enables coalesced MMIO for x86 architecture. It defines KVM_MMIO_PAGE_OFFSET and KVM_CAP_COALESCED_MMIO. It enables the compilation of coalesced_mmio.c. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: Prefixes segment functions that will be exported with "kvm_"Guillaume Thouvenin1-0/+4
Prefixes functions that will be exported with kvm_. We also prefixed set_segment() even if it still static to be coherent. signed-off-by: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net> Signed-off-by: Laurent Vivier <laurent.vivier@bull.net> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: MTRR supportAvi Kivity1-0/+3
Add emulation for the memory type range registers, needed by VMware esx 3.5, and by pci device assignment. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: Order segment register constants in the same way as cpu operand encodingAvi Kivity1-2/+2
This can be used to simplify the x86 instruction decoder. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: VMX: Enable NMI with in-kernel irqchipSheng Yang1-0/+1
Signed-off-by: Sheng Yang <sheng.yang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: IOAPIC/LAPIC: Enable NMI supportSheng Yang1-0/+4
[avi: fix ia64 build breakage] Signed-off-by: Sheng Yang <sheng.yang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
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