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2008-11-09x86: move iomap.h to the new include locationArjan van de Ven1-30/+0
a new file was accidentally added to include/asm-x86; move it to the new arch/x86/include/asm location Signed-off-by: Arjan van de Ven <[email protected]>
2008-10-31x86: add iomap_atomic*()/iounmap_atomic() on 32-bit using fixmapsKeith Packard1-0/+30
Impact: introduce new APIs, separate kmap code from CONFIG_HIGHMEM This takes the code used for CONFIG_HIGHMEM memory mappings except that it's designed for dynamic IO resource mapping. These fixmaps are available even with CONFIG_HIGHMEM turned off. Signed-off-by: Keith Packard <[email protected]> Signed-off-by: Eric Anholt <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-10-22x86, um: ... and asm-x86 moveAl Viro333-38672/+0
Signed-off-by: Al Viro <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]>
2008-10-20Merge branch 'tracing-v28-for-linus' of ↵Linus Torvalds1-0/+10
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (131 commits) tracing/fastboot: improve help text tracing/stacktrace: improve help text tracing/fastboot: fix initcalls disposition in bootgraph.pl tracing/fastboot: fix bootgraph.pl initcall name regexp tracing/fastboot: fix issues and improve output of bootgraph.pl tracepoints: synchronize unregister static inline tracepoints: tracepoint_synchronize_unregister() ftrace: make ftrace_test_p6nop disassembler-friendly markers: fix synchronize marker unregister static inline tracing/fastboot: add better resolution to initcall debug/tracing trace: add build-time check to avoid overrunning hex buffer ftrace: fix hex output mode of ftrace tracing/fastboot: fix initcalls disposition in bootgraph.pl tracing/fastboot: fix printk format typo in boot tracer ftrace: return an error when setting a nonexistent tracer ftrace: make some tracers reentrant ring-buffer: make reentrant ring-buffer: move page indexes into page headers tracing/fastboot: only trace non-module initcalls ftrace: move pc counter in irqtrace ... Manually fix conflicts: - init/main.c: initcall tracing - kernel/module.c: verbose level vs tracepoints - scripts/bootgraph.pl: fallout from cherry-picking commits.
2008-10-20Merge branch 'genirq-v28-for-linus' of ↵Linus Torvalds18-126/+183
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip This merges branches irq/genirq, irq/sparseirq-v4, timers/hpet-percpu and x86/uv. The sparseirq branch is just preliminary groundwork: no sparse IRQs are actually implemented by this tree anymore - just the new APIs are added while keeping the old way intact as well (the new APIs map 1:1 to irq_desc[]). The 'real' sparse IRQ support will then be a relatively small patch ontop of this - with a v2.6.29 merge target. * 'genirq-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (178 commits) genirq: improve include files intr_remapping: fix typo io_apic: make irq_mis_count available on 64-bit too genirq: fix name space collisions of nr_irqs in arch/* genirq: fix name space collision of nr_irqs in autoprobe.c genirq: use iterators for irq_desc loops proc: fixup irq iterator genirq: add reverse iterator for irq_desc x86: move ack_bad_irq() to irq.c x86: unify show_interrupts() and proc helpers x86: cleanup show_interrupts genirq: cleanup the sparseirq modifications genirq: remove artifacts from sparseirq removal genirq: revert dynarray genirq: remove irq_to_desc_alloc genirq: remove sparse irq code genirq: use inline function for irq_to_desc genirq: consolidate nr_irqs and for_each_irq_desc() x86: remove sparse irq from Kconfig genirq: define nr_irqs for architectures with GENERIC_HARDIRQS=n ...
2008-10-16Merge branch 'kvm-updates/2.6.28' of ↵Linus Torvalds4-56/+52
git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm * 'kvm-updates/2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: (134 commits) KVM: ia64: Add intel iommu support for guests. KVM: ia64: add directed mmio range support for kvm guests KVM: ia64: Make pmt table be able to hold physical mmio entries. KVM: Move irqchip_in_kernel() from ioapic.h to irq.h KVM: Separate irq ack notification out of arch/x86/kvm/irq.c KVM: Change is_mmio_pfn to kvm_is_mmio_pfn, and make it common for all archs KVM: Move device assignment logic to common code KVM: Device Assignment: Move vtd.c from arch/x86/kvm/ to virt/kvm/ KVM: VMX: enable invlpg exiting if EPT is disabled KVM: x86: Silence various LAPIC-related host kernel messages KVM: Device Assignment: Map mmio pages into VT-d page table KVM: PIC: enhance IPI avoidance KVM: MMU: add "oos_shadow" parameter to disable oos KVM: MMU: speed up mmu_unsync_walk KVM: MMU: out of sync shadow core KVM: MMU: mmu_convert_notrap helper KVM: MMU: awareness of new kvm_mmu_zap_page behaviour KVM: MMU: mmu_parent_walk KVM: x86: trap invlpg KVM: MMU: sync roots on mmu reload ...
2008-10-16Merge branch 'core-v28-for-linus' of ↵Linus Torvalds3-5/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: do_generic_file_read: s/EINTR/EIO/ if lock_page_killable() fails softirq, warning fix: correct a format to avoid a warning softirqs, debug: preemption check x86, pci-hotplug, calgary / rio: fix EBDA ioremap() IO resources, x86: ioremap sanity check to catch mapping requests exceeding, fix IO resources, x86: ioremap sanity check to catch mapping requests exceeding the BAR sizes softlockup: Documentation/sysctl/kernel.txt: fix softlockup_thresh description dmi scan: warn about too early calls to dmi_check_system() generic: redefine resource_size_t as phys_addr_t generic: make PFN_PHYS explicitly return phys_addr_t generic: add phys_addr_t for holding physical addresses softirq: allocate less vectors IO resources: fix/remove printk printk: robustify printk, update comment printk: robustify printk, fix #2 printk: robustify printk, fix printk: robustify printk Fixed up conflicts in: arch/powerpc/include/asm/types.h arch/powerpc/platforms/Kconfig.cputype manually.
2008-10-16Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds1-1/+6
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: fix compat-vdso x86/mm: unify init task OOM handling x86/mm: do not trigger a kernel warning if user-space disables interrupts and generates a page fault
2008-10-16Merge branch 'personality' of git://git390.osdl.marist.edu/pub/scm/linux-2.6Linus Torvalds1-2/+2
* 'personality' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: [PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY
2008-10-16x86: rename iommu_num_pages function to iommu_nr_pagesJoerg Roedel1-1/+1
This series of patches re-introduces the iommu_num_pages function so that it can be used by each architecture specific IOMMU implementations. The series also changes IOMMU implementations for X86, Alpha, PowerPC and UltraSparc. The other implementations are not yet changed because the modifications required are not obvious and I can't test them on real hardware. This patch: This is a preparation patch for introducing a generic iommu_num_pages function. Signed-off-by: Joerg Roedel <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Richard Henderson <[email protected]> Cc: Ivan Kokshaysky <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: FUJITA Tomonori <[email protected]> Cc: Muli Ben-Yehuda <[email protected]> Cc: Dave Airlie <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2008-10-16include: replace __FUNCTION__ with __func__Harvey Harrison2-2/+2
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2008-10-16x86: Add sysfs entries for UV v4Russ Anderson1-0/+1
Create /sys/firmware/sgi_uv sysfs entries for partition_id and coherence_id. Signed-off-by: Russ Anderson <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-10-16x86: Add UV partition call v4Russ Anderson1-3/+19
Add a bios call to return partitioning related info. Signed-off-by: Russ Anderson <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-10-16x86: Add UV bios call infrastructure v4Russ Anderson2-32/+54
Add the EFI callback function and associated wrapper code. Initialize SAL system table entry info at boot time. Signed-off-by: Russ Anderson <[email protected]> Signed-off-by: Paul Jackson <[email protected]> Acked-by: Huang Ying <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-10-16x86, UV: add uv_setup_irq() and uv_teardown_irq() functions, v3Dean Nelson1-0/+36
Provide a means for UV interrupt MMRs to be setup with the message to be sent when an MSI is raised. Signed-off-by: Dean Nelson <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-10-16x86: HPET_MSI Basic HPET_MSI setup code[email protected]1-0/+21
Basic HPET MSI setup code. Routines to perform basic MSI read write in HPET memory map and setting up irq_chip for HPET MSI. Signed-off-by: Venkatesh Pallipadi <[email protected]> Signed-off-by: Shaohua Li <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-10-16x2apic: fix reserved APIC register accesses in print_local_APIC()Yinghai Lu1-0/+14
APIC_ARBPRI is a reserved register for XAPIC and beyond. APIC_RRR is a reserved register except for 82489DX, APIC for Pentium processors. APIC_EOI is a write only register. APIC_DFR is reserved in x2apic mode. Access to these registers in x2apic will result in #GP fault. Fix these apic register accesses. Signed-off-by: Yinghai Lu <[email protected]> Signed-off-by: Suresh Siddha <[email protected]> Cc: Maciej W. Rozycki <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-10-16x86: apic - unify smp_spurious/error_interrupt declarationCyrill Gorcunov1-5/+0
According to entry_64.S we do pass pt_regs pointer into interrupt handlers but don't use them. So we safely may merge the declarations. Signed-off-by: Cyrill Gorcunov <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-10-16x86: probe nr_irqs even only mptable is usedYinghai Lu2-1/+8
for !CONFIG_HAVE_SPARSE_IRQ fix: In file included from arch/x86/kernel/early-quirks.c:18: include/asm/io_apic.h: In function 'probe_nr_irqs': include/asm/io_apic.h:209: error: 'NR_IRQS' undeclared (first use in this function) include/asm/io_apic.h:209: error: (Each undeclared identifier is reported only once include/asm/io_apic.h:209: error: for each function it appears in.) v2: fix by Ingo Signed-off-by: Yinghai Lu <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-10-16x86: remove first_free_entry/pin_map_sizeYinghai Lu1-3/+0
no user now Signed-off-by: Yinghai Lu <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-10-16x86: irq: interrupt array size should be NR_VECTORSYinghai Lu1-1/+1
Signed-off-by: Yinghai Lu <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-10-16x86: remove ioapic_forceYinghai Lu1-2/+0
no user left. Signed-off-by: Yinghai Lu <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-10-16x86, io-apic: remove union about dest for log/phyYinghai Lu1-16/+0
let user decide the meaning of the bits. This unifies the 32-bit and 64-bit io-apic code a bit. Signed-off-by: Yinghai Lu <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-10-16x86: make 32bit support per_cpu vectorYinghai Lu10-31/+30
so we can merge io_apic_32.c and io_apic_64.c v2: Use cpu_online_map as target cpus for bigsmp, just like 64-bit is doing. Also remove some unused TARGET_CPUS macro. v3: need to check if desc is null in smp_irq_move_cleanup also migration needs to reset vector too, so copy __target_IO_APIC_irq from 64bit. (the duplication will go away once the two files are unified.) Signed-off-by: Yinghai Lu <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-10-16x86: remove nr_irq_vectorsYinghai Lu1-9/+0
remove unused defines derived from the (now obsolete) NR_IRQS define. Signed-off-by: Yinghai Lu <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-10-16x86, irq: get nr_irqs from madtYinghai Lu1-0/+1
Until now, NR_IRQS was derived from black magic defines that had to be "large enough" to both accomodate NR_CPUS and MAX_NR_IO_APICs. This resulted in a way too large irq_desc[] array on most x86 systems. Especially with larger CPU masks, the size of irq_desc can spiral out of control quickly. So be smarter about it and use precise allocation instead: determine the default maximum possible IRQ number from the ACPI MADT. Use a minimum limit of at least 32 IRQs for broken BIOSes. Signed-off-by: Yinghai Lu <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-10-16x86: use nr_irqsYinghai Lu1-0/+3
also add first_free_entry and pin_map_size, which were NR_IRQS derived constants. Signed-off-by: Yinghai Lu <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-10-16x86: remove irq_vectors_limitsYinghai Lu2-28/+0
there's no user left. Signed-off-by: Yinghai Lu <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-10-16[PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITYMartin Schwidefsky1-2/+2
The SET_PERSONALITY macro is always called with a second argument of 0. Remove the ibcs argument and the various tests to set the PER_SVR4 personality. Signed-off-by: Martin Schwidefsky <[email protected]>
2008-10-15x86: fix compat-vdsoSuresh Siddha1-1/+6
Jeff Chua reported that this patch: > -#define PTE_IDENT_ATTR 0x007 /* PRESENT+RW+USER */ > -#define PDE_IDENT_ATTR 0x067 /* PRESENT+RW+USER+DIRTY+ACCESSED */ > +#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */ > +#define PDE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */ broke kernels with CONFIG_COMPAT_VDSO set with this init segfault: init[1]: segfault at ffffe01c up b7f0dc28 sp bfc26628 error 5 in ld-2.7.90.so[b7f0b000+1c000] Include USER bit in the PDE_IDENT_ATTR only, as the protection bits are combined from the PDE and PTE entries. This will allow the high mapped VDSO page in the case of CONFIG_COMPAT_VDSO to be user readable. Reported-by: Jeff Chua <[email protected]> Signed-off-by: Suresh Siddha <[email protected]> Tested-by: Jeff Chua <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-10-15KVM: Separate irq ack notification out of arch/x86/kvm/irq.cXiantao Zhang1-0/+2
Moving irq ack notification logic as common, and make it shared with ia64 side. Signed-off-by: Xiantao Zhang <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2008-10-15KVM: Device Assignment: Map mmio pages into VT-d page tableWeidong Han1-2/+0
Assigned device could DMA to mmio pages, so also need to map mmio pages into VT-d page table. Signed-off-by: Weidong Han <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2008-10-15KVM: MMU: speed up mmu_unsync_walkMarcelo Tosatti1-0/+1
Cache the unsynced children information in a per-page bitmap. Signed-off-by: Marcelo Tosatti <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2008-10-15KVM: MMU: out of sync shadow coreMarcelo Tosatti1-0/+3
Allow guest pagetables to go out of sync. Instead of emulating write accesses to guest pagetables, or unshadowing them, we un-write-protect the page table and allow the guest to modify it at will. We rely on invlpg executions to synchronize individual ptes, and will synchronize the entire pagetable on tlb flushes. Signed-off-by: Marcelo Tosatti <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2008-10-15KVM: x86: trap invlpgMarcelo Tosatti1-0/+2
With pages out of sync invlpg needs to be trapped. For now simply nuke the entry. Untested on AMD. Signed-off-by: Marcelo Tosatti <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2008-10-15KVM: MMU: sync roots on mmu reloadMarcelo Tosatti1-0/+1
Signed-off-by: Marcelo Tosatti <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2008-10-15KVM: MMU: mode specific sync_pageMarcelo Tosatti1-0/+2
Examine guest pagetable and bring the shadow back in sync. Caller is responsible for local TLB flush before re-entering guest mode. Signed-off-by: Marcelo Tosatti <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2008-10-15KVM: Device Assignment with VT-dBen-Ami Yassour1-20/+3
Based on a patch by: Kay, Allen M <[email protected]> This patch enables PCI device assignment based on VT-d support. When a device is assigned to the guest, the guest memory is pinned and the mapping is updated in the VT-d IOMMU. [Amit: Expose KVM_CAP_IOMMU so we can check if an IOMMU is present and also control enable/disable from userspace] Signed-off-by: Kay, Allen M <[email protected]> Signed-off-by: Weidong Han <[email protected]> Signed-off-by: Ben-Ami Yassour <[email protected]> Signed-off-by: Amit Shah <[email protected]> Acked-by: Mark Gross <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2008-10-15Merge branches 'core/softlockup', 'core/softirq', 'core/resources', ↵Ingo Molnar3-5/+2
'core/printk' and 'core/misc' into core-v28-for-linus
2008-10-15x86: Move FEATURE_CONTROL bits to msr-index.hSheng Yang1-0/+3
For MSR_IA32_FEATURE_CONTROL is already there. Signed-off-by: Sheng Yang <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2008-10-15KVM: Add statistics for guest irq injectionsAvi Kivity1-0/+1
These can help show whether a guest is making progress or not. Signed-off-by: Avi Kivity <[email protected]>
2008-10-15KVM: Simplify exception entries by using __ASM_SIZE and _ASM_PTRAvi Kivity1-11/+2
Signed-off-by: Avi Kivity <[email protected]>
2008-10-15KVM: remove unused field from the assigned dev structBen-Ami Yassour1-1/+0
Remove unused field: struct kvm_assigned_pci_dev assigned_dev from struct: struct kvm_assigned_dev_kernel Signed-off-by: Ben-Ami Yassour <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2008-10-15KVM: Reduce stack usage in kvm_pv_mmu_op()Dave Hansen1-0/+10
We're in a hot path. We can't use kmalloc() because it might impact performance. So, we just stick the buffer that we need into the kvm_vcpu_arch structure. This is used very often, so it is not really a waste. We also have to move the buffer structure's definition to the arch-specific x86 kvm header. Signed-off-by: Dave Hansen <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2008-10-15KVM: pci device assignmentBen-Ami Yassour1-0/+16
Based on a patch from: Amit Shah <[email protected]> This patch adds support for handling PCI devices that are assigned to the guest. The device to be assigned to the guest is registered in the host kernel and interrupt delivery is handled. If a device is already assigned, or the device driver for it is still loaded on the host, the device assignment is failed by conveying a -EBUSY reply to the userspace. Devices that share their interrupt line are not supported at the moment. By itself, this patch will not make devices work within the guest. The VT-d extension is required to enable the device to perform DMA. Another alternative is PVDMA. Signed-off-by: Amit Shah <[email protected]> Signed-off-by: Ben-Ami Yassour <[email protected]> Signed-off-by: Weidong Han <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2008-10-15x86: paravirt: factor out cpu_khz to common codeGlauber Costa1-0/+1
KVM intends to use paravirt code to calibrate khz. Xen current code will do just fine. So as a first step, factor out code to pvclock.c. Signed-off-by: Glauber Costa <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2008-10-15KVM: Add irq ack notifier listAvi Kivity1-0/+7
This can be used by kvm subsystems that are interested in when interrupts are acked, for example time drift compensation. Signed-off-by: Avi Kivity <[email protected]>
2008-10-15KVM: VMX: Reinject real mode exceptionJan Kiszka1-0/+4
As we execute real mode guests in VM86 mode, exception have to be reinjected appropriately when the guest triggered them. For this purpose the patch adopts the real-mode injection pattern used in vmx_inject_irq to vmx_queue_exception, additionally taking care that the IP is set correctly for #BP exceptions. Furthermore it extends handle_rmode_exception to reinject all those exceptions that can be raised in real mode. This fixes the execution of himem.exe from FreeDOS and also makes its debug.com work properly. Note that guest debugging in real mode is broken now. This has to be fixed by the scheduled debugging infrastructure rework (will be done once base patches for QEMU have been accepted). Signed-off-by: Jan Kiszka <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2008-10-15KVM: Consolidate XX_VECTOR definesJan Kiszka1-0/+1
Signed-off-by: Jan Kiszka <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2008-10-15KVM: Add a pending interrupt queueAvi Kivity1-0/+5
Similar to the exception queue, this hold interrupts that have been accepted by the virtual processor core but not yet injected. Not yet used. Signed-off-by: Avi Kivity <[email protected]>
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