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* Merge branch 'release' of ↵Linus Torvalds2008-07-2120-311/+968
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: (25 commits) mmtimer: Push BKL down into the ioctl handler [IA64] Remove experimental status of kdump [IA64] Update ia64 mmr list for SGI uv [IA64] Avoid overflowing ia64_cpu_to_sapicid in acpi_map_lsapic() [IA64] adding parameter check to module_free() [IA64] improper printk format in acpi-cpufreq [IA64] pv_ops: move some functions in ivt.S to avoid lack of space. [IA64] pvops: documentation on ia64/pv_ops [IA64] pvops: add to hooks, pv_time_ops, for steal time accounting. [IA64] pvops: add hooks, pv_irq_ops, to paravirtualized irq related operations. [IA64] pvops: add hooks, pv_iosapic_ops, to paravirtualize iosapic. [IA64] pvops: define initialization hooks, pv_init_ops, for paravirtualized environment. [IA64] pvops: paravirtualize NR_IRQS [IA64] pvops: paravirtualize entry.S [IA64] pvops: paravirtualize ivt.S [IA64] pvops: paravirtualize minstate.h. [IA64] pvops: define paravirtualized instructions for native. [IA64] pvops: preparation for paravirtulization of hand written assembly code. [IA64] pvops: introduce pv_cpu_ops to paravirtualize privileged instructions. [IA64] pvops: add an early setup hook for pv_ops. ...
| * [IA64] Remove experimental status of kdumpBernhard Walle2008-07-171-2/+2
| | | | | | | | | | | | | | | | This patch removes the experimental status of kdump on IA64. kdump is on IA64 now since more than one year and it has proven to be stable. Signed-off-by: Bernhard Walle <bwalle@suse.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] Avoid overflowing ia64_cpu_to_sapicid in acpi_map_lsapic()Alex Chiang2008-07-171-3/+2
| | | | | | | | | | | | | | | | | | | | acpi_map_lsapic tries to stuff a long into ia64_cpu_to_sapicid[], which can only hold ints, so let's fix that. We need to update the signature of acpi_map_cpu2node() too. Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] adding parameter check to module_free()Akiyama, Nobuyuki2008-07-171-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | module_free() refers the first parameter before checking. But it is called like below(in kernel/kprobes). The first parameter is always NULL. This happens when many probe points(>1024) are set by kprobes. I encountered this with using SystemTap. It can set many probes easily. static int __kprobes collect_one_slot(struct kprobe_insn_page *kip, int idx) { ... if (kip->nused == 0) { hlist_del(&kip->hlist); if (hlist_empty(&kprobe_insn_pages)) { ... } else { module_free(NULL, kip->insns); //<<< 1st param always NULL kfree(kip); } return 1; } return 0; } Signed-off-by: Akiyama, Nobuyuki <akiyama.nobuyuk@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] improper printk format in acpi-cpufreqDenis V. Lunev2008-07-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | When dprintk is enabled the following warnings are generated: arch/ia64/kernel/cpufreq/acpi-cpufreq.c: In function 'processor_set_pstate': arch/ia64/kernel/cpufreq/acpi-cpufreq.c:54: warning: format '%x' expects type 'unsigned int', but argumen t 3 has type 's64' arch/ia64/kernel/cpufreq/acpi-cpufreq.c: In function 'processor_get_pstate': arch/ia64/kernel/cpufreq/acpi-cpufreq.c:76: warning: format '%x' expects type 'unsigned int', but argumen t 2 has type 's64' Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * Pull pvops into release branchTony Luck2008-07-1716-303/+960
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| | * [IA64] pv_ops: move some functions in ivt.S to avoid lack of space.Isaku Yamahata2008-05-281-128/+133
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | move interrupt, page_fault, non_syscall, dispatch_unaligned_handler and dispatch_to_fault_handler to avoid lack of instructin space. The change set 4dcc29e1574d88f4465ba865ed82800032f76418 bloated SAVE_MIN_WITH_COVER, SAVE_MIN_WITH_COVER_R19 so that it bloated the functions which uses those macros. In the native case, only dispatch_illegal_op_fault had to be moved. When paravirtualized case the all functions which use the macros need to be moved to avoid the lack of space. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] pvops: add to hooks, pv_time_ops, for steal time accounting.Isaku Yamahata2008-05-272-0/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce pv_time_ops which adds hook to steal time accounting. On virtualized environment, cpus are shared by many guests and steal time is the time which is used for other guests. On virtualized environtment, streal time should be accounted. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] pvops: add hooks, pv_irq_ops, to paravirtualized irq related operations.Isaku Yamahata2008-05-272-5/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | introduce pv_irq_ops which adds hooks to paravirtualize irq related operations. On virtualized environment, interruption may be replaced by something virtualization friendly. So the irq related operation also may need paravirtualization. This patch adds necessary hooks to paravirtualize irq related operations. Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] pvops: add hooks, pv_iosapic_ops, to paravirtualize iosapic.Isaku Yamahata2008-05-272-16/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | add hooks to paravirtualize iosapic which is a real hardware resource. On virtualized environment it may be replaced something virtualized friendly. Define pv_iosapic_ops and add the hooks. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] pvops: define initialization hooks, pv_init_ops, for paravirtualized ↵Isaku Yamahata2008-05-273-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | environment. define pv_init_ops hooks which represents various initialization hooks for paravirtualized environment. and add hooks. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] pvops: paravirtualize NR_IRQSIsaku Yamahata2008-05-273-0/+63
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make NR_IRQ overridable by each pv instances. Pv instance may need each own number of irqs so that NR_IRQS should be the maximum number of nr_irqs each pv instances need. Cc: Jes Sorensen <jes@sgi.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] pvops: paravirtualize entry.SIsaku Yamahata2008-05-274-44/+152
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | paravirtualize ia64_swtich_to, ia64_leave_syscall and ia64_leave_kernel. They include sensitive or performance critical privileged instructions so that they need paravirtualization. To paravirtualize them by single source and multi compile they are converted into indirect jump. And define each pv instances. Cc: Keith Owens <kaos@ocs.com.au> Cc: "Dong, Eddie" <eddie.dong@intel.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] pvops: paravirtualize ivt.SIsaku Yamahata2008-05-271-127/+122
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | paravirtualize ivt.S which implements fault handler in hand written assembly code. They includes sensitive or performance critical privileged instructions. So they need paravirtualization. Cc: Keith Owens <kaos@ocs.com.au> Cc: tgingold@free.fr Cc: Akio Takebe <takebe_akio@jp.fujitsu.com> Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] pvops: paravirtualize minstate.h.Isaku Yamahata2008-05-272-6/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | paravirtualize minstate.h which are hand written assembly code. They include sensitive or performance critical privileged instructions. So that they are appropriate for paravirtualization. Cc: Keith Owens <kaos@ocs.com.au> Cc: Akio Takebe <takebe_akio@jp.fujitsu.com> Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] pvops: preparation for paravirtulization of hand written assembly code.Isaku Yamahata2008-05-271-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Preparation for paravirtualization of hand written assembly code. They are paravirtualized by single source code and compiled multi times. To tell those files for target (including native), add one defines. Cc: "Dong, Eddie" <eddie.dong@intel.com> Cc: Keith Owens <kaos@ocs.com.au> Cc: tgingold@free.fr Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] pvops: introduce pv_cpu_ops to paravirtualize privileged instructions.Isaku Yamahata2008-05-271-0/+247
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | introduce pv_cpu_ops to paravirtualize privleged instructions which are defined by ia64 intrinsics. make them indirect C function calls by introducing function tables, pv_cpu_ops. Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] pvops: add an early setup hook for pv_ops.Isaku Yamahata2008-05-271-0/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a setup hook in the very early boot sequence before start_kernel() to initialize paravirtualization stuff. The hook will be set by each pv loader code or by using multi entry point. Signed-off-by: Qing He <qing.he@intel.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] pvops: introduce pv_info which describes some random info.Isaku Yamahata2008-05-272-0/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | introduce pv_info which describes some randome info about underlying execution environment. Cc: Jes Sorensen <jes@sgi.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] pvops: preparation: move the constants, LOAD_OFFSET, to a header file.Isaku Yamahata2008-05-271-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the LOAD_OFFSET definition from vmlinux.lds.S into system.h. On paravirtualized environments, it is necessary to detect the execution environment. One of the solutions is the multi entry point. The multi entry point allows a boot loader to start the kernel execution from the entry point which is different from the ELF entry point. The non standard entry point will defined as the specialized elf note which contains the LMA of the entry point symbol. The constant, LOAD_OFFSET, is necessary to calculate the symbol's LMA. Move the definition into the public header file to make it available to the multi entry point support. Cc: "He, Qing" <qing.he@intel.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] pvops: preparation: remove extern in irq_ia64.cIsaku Yamahata2008-05-271-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | remove extern declaration of handle_IPI() in irq_ia64.c. Instead, declare it in asm-ia64/smp.h. Later handle_IPI() will be referenced from another file. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | Merge branch 'kvm-updates-2.6.27' of ↵Linus Torvalds2008-07-202-12/+11
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm * 'kvm-updates-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: (70 commits) KVM: Adjust smp_call_function_mask() callers to new requirements KVM: MMU: Fix potential race setting upper shadow ptes on nonpae hosts KVM: x86 emulator: emulate clflush KVM: MMU: improve invalid shadow root page handling KVM: MMU: nuke shadowed pgtable pages and ptes on memslot destruction KVM: Prefix some x86 low level function with kvm_, to avoid namespace issues KVM: check injected pic irq within valid pic irqs KVM: x86 emulator: Fix HLT instruction KVM: Apply the kernel sigmask to vcpus blocked due to being uninitialized KVM: VMX: Add ept_sync_context in flush_tlb KVM: mmu_shrink: kvm_mmu_zap_page requires slots_lock to be held x86: KVM guest: make kvm_smp_prepare_boot_cpu() static KVM: SVM: fix suspend/resume support KVM: s390: rename private structures KVM: s390: Set guest storage limit and offset to sane values KVM: Fix memory leak on guest exit KVM: s390: dont allocate dirty bitmap KVM: move slots_lock acquision down to vapic_exit KVM: VMX: Fake emulate Intel perfctr MSRs KVM: VMX: Fix a wrong usage of vmcs_config ...
| * | | KVM: MMU: nuke shadowed pgtable pages and ptes on memslot destructionMarcelo Tosatti2008-07-201-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Flush the shadow mmu before removing regions to avoid stale entries. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | KVM: Add coalesced MMIO support (ia64 part)Laurent Vivier2008-07-202-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch enables coalesced MMIO for ia64 architecture. It defines KVM_MMIO_PAGE_OFFSET and KVM_CAP_COALESCED_MMIO. It enables the compilation of coalesced_mmio.c. [akpm: fix compile error on ia64] Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | KVM: kvm_io_device: extend in_range() to manage len and write attributeLaurent Vivier2008-07-201-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Modify member in_range() of structure kvm_io_device to pass length and the type of the I/O (write or read). This modification allows to use kvm_io_device with coalesced MMIO. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | KVM: Remove decache_vcpus_on_cpu() and related callbacksAvi Kivity2008-07-201-8/+0
| |/ / | | | | | | | | | | | | | | | Obsoleted by the vmx-specific per-cpu list. Signed-off-by: Avi Kivity <avi@qumranet.com>
* | | simserial: Fix up for ldisc changesAlan Cox2008-07-201-43/+3
|/ / | | | | | | | | | | | | | | Noted by Tony Luck although I've done the patches differently and also removed some other bogus oddments. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | fix build error of arch/ia64/kvm/*Takashi Iwai2008-07-172-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix calls of smp_call_function*() in arch/ia64/kvm for recent API changes. CC [M] arch/ia64/kvm/kvm-ia64.o arch/ia64/kvm/kvm-ia64.c: In function 'handle_global_purge': arch/ia64/kvm/kvm-ia64.c:398: error: too many arguments to function 'smp_call_function_single' arch/ia64/kvm/kvm-ia64.c: In function 'kvm_vcpu_kick': arch/ia64/kvm/kvm-ia64.c:1696: error: too many arguments to function 'smp_call_function_single' Signed-off-by: Takashi Iwai <tiwai@suse.de> Acked-by Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | ACPI : Create "idle=nomwait" bootparamZhao Yakui2008-07-161-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "idle=nomwait" disables the use of the MWAIT instruction from both C1 (C1_FFH) and deeper (C2C3_FFH) C-states. When MWAIT is unavailable, the BIOS and OS generally negotiate to use the HALT instruction for C1, and use IO accesses for deeper C-states. This option is useful for power and performance comparisons, and also to work around BIOS bugs where broken MWAIT support is advertised. http://bugzilla.kernel.org/show_bug.cgi?id=10807 http://bugzilla.kernel.org/show_bug.cgi?id=10914 Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Li Shaohua <shaohua.li@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com>
* | ACPI: Create "idle=halt" bootparamZhao Yakui2008-07-161-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | "idle=halt" limits the idle loop to using the halt instruction. No MWAIT, no IO accesses, no C-states deeper than C1. If something is broken in the idle code, "idle=halt" is a less severe workaround than "idle=poll" which disables all power savings. Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com>
* | Merge branch 'generic-ipi-for-linus' of ↵Linus Torvalds2008-07-159-254/+30
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'generic-ipi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (22 commits) generic-ipi: more merge fallout generic-ipi: merge fix x86, visws: use mach-default/entry_arch.h x86, visws: fix generic-ipi build generic-ipi: fixlet generic-ipi: fix s390 build bug generic-ipi: fix linux-next tree build failure fix: "smp_call_function: get rid of the unused nonatomic/retry argument" fix: "smp_call_function: get rid of the unused nonatomic/retry argument" fix "smp_call_function: get rid of the unused nonatomic/retry argument" on_each_cpu(): kill unused 'retry' parameter smp_call_function: get rid of the unused nonatomic/retry argument sh: convert to generic helpers for IPI function calls parisc: convert to generic helpers for IPI function calls mips: convert to generic helpers for IPI function calls m32r: convert to generic helpers for IPI function calls arm: convert to generic helpers for IPI function calls alpha: convert to generic helpers for IPI function calls ia64: convert to generic helpers for IPI function calls powerpc: convert to generic helpers for IPI function calls ... Fix trivial conflicts due to rcu updates in kernel/rcupdate.c manually
| * \ Merge branch 'generic-ipi' into generic-ipi-for-linusIngo Molnar2008-07-159-254/+30
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/powerpc/Kconfig arch/s390/kernel/time.c arch/x86/kernel/apic_32.c arch/x86/kernel/cpu/perfctr-watchdog.c arch/x86/kernel/i8259_64.c arch/x86/kernel/ldt.c arch/x86/kernel/nmi_64.c arch/x86/kernel/smpboot.c arch/x86/xen/smp.c include/asm-x86/hw_irq_32.h include/asm-x86/hw_irq_64.h include/asm-x86/mach-default/irq_vectors.h include/asm-x86/mach-voyager/irq_vectors.h include/asm-x86/smp.h kernel/Makefile Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | on_each_cpu(): kill unused 'retry' parameterJens Axboe2008-06-263-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's not even passed on to smp_call_function() anymore, since that was removed. So kill it. Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| | * | smp_call_function: get rid of the unused nonatomic/retry argumentJens Axboe2008-06-267-9/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's never used and the comments refer to nonatomic and retry interchangably. So get rid of it. Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| | * | ia64: convert to generic helpers for IPI function callsJens Axboe2008-06-263-239/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This converts ia64 to use the new helpers for smp_call_function() and friends, and adds support for smp_call_function_single(). Cc: Tony Luck <tony.luck@intel.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | | | Merge branch 'linus' into core/rcuIngo Molnar2008-07-112-1/+3
|\ \ \ \ | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: include/linux/rculist.h kernel/rcupreempt.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | [IA64] export account_system_vtimeDoug Chapman2008-06-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The symbol account_system_vtime is used by the kvm module but not exported. This breaks building with CONFIG_VIRT_CPU_ACCOUNTING and CONFIG_KVM=m. Signed-off-by: Doug Chapman <doug.chapman@hp.com> Acked-by: Hidetosho Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | | [IA64] Bugfix for system with 32 cpusTony Luck2008-06-301-1/+2
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On a system where there are no hot pluggable cpus "additional_cpus" is still set to -1 at the point where we call per_cpu_scan_finalize(). If we didn't find an SRAT table and so pick the default "32" for the number of cpus, when we get to: high_cpu = min(high_cpu + reserve_cpus, NR_CPUS); we will end up initializing for just 31 cpus ... and so we will die horribly when bringing up cpu#32. Problem introduced by: 2c6e6db41f01b6b4eb98809350827c9678996698 "Minimize per_cpu reservations." Acked-by: Robin Holt <holt@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | Merge commit 'v2.6.26-rc8' into core/rcuIngo Molnar2008-06-263-5/+2
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| * | [IA64] Eliminate NULL test after alloc_bootmem in iosapic_alloc_rte()Julia Lawall2008-06-241-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | As noted by Akinobu Mita alloc_bootmem and related functions never return NULL and always return a zeroed region of memory. Thus a NULL test or memset after calls to these functions is unnecessary. Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | [IA64] Handle count==0 in sn2_ptc_proc_write()Cliff Wickman2008-06-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The fix applied in e0c6d97c65e0784aade7e97b9411f245a6c543e7 "security hole in sn2_ptc_proc_write" didn't take into account the case where count==0 (which results in a buffer underrun when adding the trailing '\0'). Thanks to Andi Kleen for pointing this out. Signed-off-by: Cliff Wickman <cpw@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | [IA64] Fix boot failure on ia64/sn2Jes Sorensen2008-06-241-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Call check_sal_cache_flush() after platform_setup() as check_sal_cache_flush() now relies on being able to call platform vector code. Problem was introduced by: 3463a93def55c309f3c0d0a8aaf216be3be42d64 "Update check_sal_cache_flush to use platform_send_ipi()" Signed-off-by: Jes Sorensen <jes@sgi.com> Tested-by: Alex Chiang: <achiang@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | Merge branch 'linus' into core/rcuIngo Molnar2008-06-235-9/+23
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| * | [IA64] SN2: security hole in sn2_ptc_proc_writeCliff Wickman2008-06-201-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | Security hole in sn2_ptc_proc_write It is possible to overrun a buffer with a write to this /proc file. Signed-off-by: Cliff Wickman <cpw@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | Merge branch 'release' of ↵Linus Torvalds2008-06-164-9/+21
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Fix CONFIG_IA64_SGI_UV build error [IA64] Update check_sal_cache_flush to use platform_send_ipi() [IA64] perfmon: fix async exit bug
| | * | [IA64] Fix CONFIG_IA64_SGI_UV build errorJack Steiner2008-06-162-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix build error in CONFIG_IA64_SGI_UV config. (GENERIC builds are ok). Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * | [IA64] Update check_sal_cache_flush to use platform_send_ipi()Alex Chiang2008-06-111-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | check_sal_cache_flush is used to detect broken firmware that drops pending interrupts. The old implementation schedules a timer interrupt for itself in the future by getting the current value of the Interval Timer Counter + 1000 cycles, waits for the interrupt to be pended, calls SAL_CACHE_FLUSH, and finally checks to see if the interrupt is still pending. This implementation can cause problems for virtual machine code if the process of scheduling the timer interrupt takes more than 1000 cycles; the virtual machine can end up sleeping for several hundred years while waiting for the ITC to wrap around. The fix is to use platform_send_ipi. The processor will still send an interrupt to itself, using the IA64_IPI_DM_INT delivery mode, which causes the IPI to look like an external interrupt. The rest of the SAL_CACHE_FLUSH + checking to see if the interrupt is still pending remains unchanged. This fix has been boot tested successfully on: - intel tiger2 - hp rx6600 - hp rx5670 The rx5670 has known buggy firmware, where SAL_CACHE_FLUSH drops pending interrupts. A boot test on this machine showed this message on the console: SAL: SAL_CACHE_FLUSH drops interrupts; PAL_CACHE_FLUSH will be used instead Which proves that the self-inflicted IPI approach is viable. And as expected, the other tested platforms correctly did not display the warning. Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * | [IA64] perfmon: fix async exit bugstephane eranian2008-06-111-5/+5
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | Move the cleanup of the async queue to the close callback from the flush callback. This avoids losing asynchronous overflow notifications when the file descriptor is shared by multiple processes and one terminates. Signed-off-by: Stephane Eranian <eranian@gmail.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | Merge branch 'linus' into core/rcuIngo Molnar2008-06-1611-52/+137
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| * | Merge branch 'release' of ↵Linus Torvalds2008-06-111-2/+7
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (23 commits) ACPICA: fix stray va_end() caused by mis-merge ACPI: Reject below-freezing temperatures as invalid critical temperatures ACPICA: Fix for access to deleted object <regression> ACPICA: Fix to make _SST method optional ACPICA: Fix for Load operator, load table at the namespace root ACPICA: Ignore ACPI table signature for Load() operator ACPICA: Fix to allow zero-length ASL field declarations ACPI: use memory_read_from_buffer() bay: exit if notify handler cannot be installed dock.c remove trailing printk whitespace proper prototype for acpi_processor_tstate_has_changed() ACPI: handle invalid ACPI SLIT table PNPACPI: use _CRS IRQ descriptor length for _SRS pnpacpi: fix shareable IRQ encode/decode pnpacpi: fix IRQ flag decoding MAINTAINERS: update ACPI homepage ACPI 2.6.26-rc2: Add missing newline to DSDT/SSDT warning message ACPI: EC: Use msleep instead of udelay while waiting for event. thinkpad-acpi: fix LED handling on older ThinkPads thinkpad-acpi: fix initialization error paths ...
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