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Subject[GIT PULL][RESEND]KVM updates for 2.6.32-rc1
Linus, please pull from

git:// kvm-updates/2.6.32

to receive the KVM updates for this cycle. Changes include

- support for injecting MCEs into guests
- irqfd/ioeventfd, an eventfd-based mechanism to connect user- and
kernel- based components to guests
- "unrestricted guests" on Intel, which improves real-mode support
- nested svm improvements
- event traces supplant the old KVM-private trace implementation
- syscall/sysenter emulation for cross-vendor migration
- 1GB pages on AMD
- x2apic, which improves SMP performance

as well as the usual fixes and performance and scaling improvements.

Note that Marcelo is joining me as co-maintainer, so you may get KVM
updates from him in the future.


Akinobu Mita (2):
KVM: x86: use get_desc_base() and get_desc_limit()
KVM: x86: use kvm_get_gdt() and kvm_read_ldt()

Alexander Graf (4):
x86: Add definition for IGNNE MSR
KVM: Implement MSRs used by Hyper-V
KVM: SVM: Improve nested interrupt injection

Amit Shah (2):
KVM: ignore reads to perfctr msrs
Documentation: Update KVM list email address

Andre Przywara (15):
KVM: SVM: use explicit 64bit storage for sysenter values
KVM: Move performance counter MSR access interception to generic
x86 path
KVM: Allow emulation of syscalls instructions on #UD
KVM: x86 emulator: Add missing EFLAGS bit definitions
KVM: x86 emulator: Prepare for emulation of syscall instructions
KVM: x86 emulator: add syscall emulation
KVM: x86 emulator: Add sysenter emulation
KVM: x86 emulator: Add sysexit emulation
KVM: ignore AMDs HWCR register access to set the FFDIS bit
KVM: ignore reads from AMDs C1E enabled MSR
KVM: introduce module parameter for ignoring unknown MSRs accesses
KVM: Ignore PCI ECS I/O enablement
KVM: handle AMD microcode MSR
KVM: add module parameters documentation

Anthony Liguori (1):
KVM: When switching to a vm8086 task, load segments as 16-bit

Avi Kivity (37):
KVM: x86 emulator: Implement zero-extended immediate decoding
KVM: x86 emulator: fix jmp far decoding (opcode 0xea)
KVM: Move common KVM Kconfig items to new file virt/kvm/Kconfig
KVM: SVM: Fold kvm_svm.h info svm.c
KVM: VMX: Avoid duplicate ept tlb flush when setting cr3
KVM: VMX: Simplify pdptr and cr3 management
KVM: Cache pdptrs
KVM: VMX: Fix reporting of unhandled EPT violations
KVM: Calculate available entries in coalesced mmio ring
KVM: Reorder ioctls in kvm.h
KVM: VMX: Move rmode structure to vmx-specific code
KVM: MMU: Fix is_dirty_pte()
KVM: MMU: Adjust pte accessors to explicitly indicate guest or
shadow pte
KVM: MMU: s/shadow_pte/spte/
KVM: Return to userspace on emulation failure
KVM: VMX: Only reload guest cr2 if different from host cr2
KVM: SVM: Don't save/restore host cr2
KVM: Trace irq level and source id
KVM: Trace mmio
KVM: Trace apic registers using their symbolic names
KVM: MMU: Trace guest pagetable walker
KVM: Document basic API
KVM: Trace shadow page lifecycle
KVM: VMX: Optimize vmx_get_cpl()
x86: Export kmap_atomic_to_page()
KVM: SVM: Drop tlb flush workaround in npt
KVM: Move #endif KVM_CAP_IRQ_ROUTING to correct place
KVM: VMX: Adjust rflags if in real mode emulation
KVM: Rename x86_emulate.c to emulate.c
KVM: Add __KERNEL__ guards to exported headers
KVM: Add missing #include
KVM: Protect update_cr8_intercept() when running without an apic
KVM: Optimize kvm_mmu_unprotect_page_virt() for tdp
KVM: Use thread debug register storage instead of kvm specific data
KVM: VMX: Conditionally reload debug register 6
KVM: VMX: Check cpl before emulating debug register access

Bartlomiej Zolnierkiewicz (1):
KVM: remove superfluous NULL pointer check in

Beth Kon (1):
KVM: PIT support for HPET legacy mode

Christian Borntraeger (1):
KVM: s390: Fix memslot initialization for userspace_addr != 0

Christian Ehrhardt (4):
KVM: s390: infrastructure to kick vcpus out of guest state
KVM: s390: fix signal handling
KVM: s390: streamline memslot handling
KVM: remove redundant declarations

Christoph Hellwig (1):
KVM: cleanup arch/x86/kvm/Makefile

Glauber Costa (1):
KVM guest: fix bogus wallclock physical address calculation

Gleb Natapov (28):
KVM: VMX: Properly handle software interrupt re-injection in real
KVM: Drop interrupt shadow when single stepping should be done
only on VMX
KVM: Introduce kvm_vcpu_is_bsp() function.
KVM: Use pointer to vcpu instead of vcpu_id in timer code.
KVM: Break dependency between vcpu index in vcpus array and vcpu_id.
KVM: Use macro to iterate over vcpus.
KVM: Replace pending exception by PF if it happens serially
KVM: Optimize searching for highest IRR
KVM: Add Directed EOI support to APIC emulation
KVM: x2apic interface to lapic
KVM: Use temporary variable to shorten lines.
KVM: Add trace points in irqchip code
KVM: No need to kick cpu if not in a guest mode
KVM: Always report x2apic as supported feature
KVM: Move exception handling to the same place as other events
KVM: Move kvm_cpu_get_interrupt() declaration to x86 code
KVM: Reduce runnability interface with arch support code
KVM: silence lapic kernel messages that can be triggered by a guest
KVM: s390: remove unused structs
KVM: PIT: Unregister ack notifier callback when freeing
KVM: Call kvm_vcpu_kick() inside pic spinlock
KVM: Call ack notifiers from PIC when guest OS acks an IRQ.
KVM: Replace pic_lock()/pic_unlock() with direct call to spinlock
KVM: Update cr8 intercept when APIC TPR is changed by userspace
KVM: VMX: Fix cr8 exiting control clobbering by EPT
KVM: Fix coalesced interrupt reporting in IOAPIC
KVM: VMX: call vmx_load_host_state() only if msr is cached
KVM: fix misreporting of coalesced interrupts by kvm tracer

Gregory Haskins (6):
KVM: irqfd
KVM: Clean up coalesced_mmio destruction
KVM: cleanup io_device code
KVM: do not register i8254 PIO regions until we are initialized
KVM: make io_bus interface more robust
KVM: add ioeventfd support

Heiko Carstens (1):
KVM: fix compile warnings on s390

Huang Ying (1):
KVM: Add MCE support

Izik Eidus (1):
KVM: MMU: make __kvm_mmu_free_some_pages handle empty list

Jan Kiszka (8):
KVM: Allow PIT emulation without speaker port
KVM: Cleanup LAPIC interface
KVM: Fix racy event propagation in timer
KVM: Drop useless atomic test from timer function
Revert "KVM: x86: check for cr3 validity in ioctl_set_sregs"
KVM: Drop obsolete cpu_get/put in make_all_cpus_request
KVM: VMX: Avoid to return ENOTSUPP to userland
KVM: x86: Disallow hypercalls for guest callers in rings > 0
Jaswinder Singh Rajput (2):
KVM: Use MSR names in place of address

Jes Sorensen (1):
KVM: ia64: Correct itc_offset calculations

Jiri Slaby (1):
KVM: fix lock imbalance

Joerg Roedel (31):
hugetlbfs: export vma_kernel_pagsize to modules
KVM: Prepare memslot data structures for multiple hugepage sizes
KVM: MMU: Fix MMU_DEBUG compile breakage
KVM: MMU: make rmap code aware of mapping levels
KVM: MMU: rename is_largepage_backed to mapping_level
KVM: MMU: make direct mapping paths aware of mapping levels
KVM: MMU: make page walker aware of mapping levels
KVM: MMU: shadow support for 1gb pages
KVM: MMU: enable gbpages by increasing nr of pagesizes
KVM: report 1GB page support to userspace
KVM: SVM: add helper functions for global interrupt flag
KVM: SVM: optimize nested #vmexit
KVM: SVM: optimize nested vmrun
KVM: SVM: copy only necessary parts of the control area on
KVM: SVM: complete interrupts after handling nested exits
KVM: SVM: move nested svm state into seperate struct
KVM: SVM: cache nested intercepts
KVM: SVM: consolidate nested_svm_exit_handled
KVM: SVM: do nested vmexit in nested_svm_exit_handled
KVM: SVM: simplify nested_svm_check_exception
KVM: SVM: get rid of nested_svm_vmexit_real
KVM: SVM: clean up nested_svm_exit_handled_msr
KVM: SVM: clean up nestec vmload/vmsave paths
KVM: SVM: clean up nested vmrun path
KVM: SVM: remove nested_svm_do and helper functions
KVM: SVM: handle errors in vmrun emulation path appropriatly
KVM: SVM: move special nested exit handling to separate function
KVM: SVM: remove unnecessary is_nested check from svm_cpu_run
KVM: SVM: move nested_svm_intr main logic out of if-clause
KVM: SVM: check for nested VINTR flag in svm_interrupt_allowed
KVM: SVM: enable nested svm by default

Julia Lawall (1):
KVM: correct error-handling code

Liu Yu (3):
KVM: ppc: e500: Move to Book-3e MMU definitions
KVM: ppc: e500: Directly pass pvr to guest
KVM: ppc: e500: Add MMUCFG and PVR emulation

Marcelo Tosatti (26):
KVM: Grab pic lock in kvm_pic_clear_isr_ack
KVM: move coalesced_mmio locking to its own device
KVM: introduce irq_lock, use it to protect ioapic
KVM: switch irq injection/acking data structures to irq_lock
KVM: MMU: introduce is_last_spte helper
KVM: MMU audit: update count_writable_mappings / count_rmaps
KVM: MMU audit: update audit_write_protection
KVM: MMU audit: nontrapping ptes in nonleaf level
KVM: MMU audit: audit_mappings tweaks
KVM: MMU audit: largepage handling
KVM: VMX: more MSR_IA32_VMX_EPT_VPID_CAP capability bits
KVM: MMU: make for_each_shadow_entry aware of largepages
KVM: MMU: add kvm_mmu_get_spte_hierarchy helper
KVM: VMX: EPT misconfiguration handler
KVM: VMX: conditionally disable 2M pages
KVM: convert custom marker based tracing to event traces
KVM: x86: missing locking in PIT/IRQCHIP/SET_BSP_CPU ioctl paths
KVM: powerpc: convert marker probes to event trace
KVM: remove old KVMTRACE support code
KVM: use vcpu_id instead of bsp_vcpu pointer in kvm_vcpu_is_bsp
KVM: MMU: fix missing locking in alloc_mmu_pages
KVM: limit lapic periodic timer frequency
KVM: MMU: fix bogus alloc_mmu_pages assignment
KVM guest: do not batch pte updates from interrupt context
KVM: x86: drop duplicate kvm_flush_remote_tlb calls
MAINTAINERS: update KVM entry

Mark McLoughlin (1):
KVM: fix cpuid E2BIG handling for extended request types

Michael S. Tsirkin (8):
KVM: document locking for kvm_io_device_ops
KVM: switch coalesced mmio changes to slots_lock
KVM: switch pit creation to slots_lock
KVM: convert bus to slots_lock
KVM: remove in_range from io devices
KVM: document lock nesting rule
KVM: ignore msi request if !level
KVM: export kvm_para.h

Mikhail Ershov (2):
KVM: Align cr8 threshold when userspace changes cr8
KVM: Use kvm_{read,write}_guest_virt() to read and write segment
Mohammed Gamal (1):
KVM: x86 emulator: Add adc and sbb missing decoder flags

Nitin A Kamble (1):
KVM: VMX: Support Unrestricted Guest feature

Roel Kluin (1):
KVM: fix EFER read buffer overflow

Sheng Yang (6):
KVM: Downsize max support MSI-X entry to 256
KVM: No disable_irq for MSI/MSI-X interrupt on device assignment
KVM: Fix apic_mmio_write return for unaligned write
KVM: Discard unnecessary kvm_mmu_flush_tlb() in kvm_mmu_load()
KVM: VMX: Fix EPT with WP bit change during paging

Stephen Rothwell (1):
KVM: powerpc: fix some init/exit annotations

Xiao Guangrong (1):
KVM: fix kvm_init() error handling

Documentation/ioctl/ioctl-number.txt | 2 +-
Documentation/kernel-parameters.txt | 39 +
Documentation/kvm/api.txt | 759
arch/ia64/include/asm/kvm_host.h | 4 +-
arch/ia64/include/asm/kvm_para.h | 4 +
arch/ia64/kvm/Kconfig | 11 +-
arch/ia64/kvm/kvm-ia64.c | 85 +--
arch/ia64/kvm/vcpu.c | 4 +-
arch/powerpc/include/asm/kvm_host.h | 4 +-
arch/powerpc/kvm/44x.c | 4 +-
arch/powerpc/kvm/44x_tlb.c | 11 +-
arch/powerpc/kvm/Kconfig | 14 +-
arch/powerpc/kvm/Makefile | 4 +-
arch/powerpc/kvm/booke.c | 2 +-
arch/powerpc/kvm/e500.c | 7 +-
arch/powerpc/kvm/e500_emulate.c | 3 +
arch/powerpc/kvm/e500_tlb.c | 26 +-
arch/powerpc/kvm/e500_tlb.h | 6 +-
arch/powerpc/kvm/emulate.c | 7 +-
arch/powerpc/kvm/powerpc.c | 32 +-
arch/powerpc/kvm/trace.h | 104 +++
arch/s390/include/asm/kvm.h | 9 -
arch/s390/include/asm/kvm_host.h | 15 +-
arch/s390/include/asm/kvm_para.h | 4 +
arch/s390/kvm/Kconfig | 9 +-
arch/s390/kvm/gaccess.h | 23 +-
arch/s390/kvm/intercept.c | 18 +-
arch/s390/kvm/interrupt.c | 8 +-
arch/s390/kvm/kvm-s390.c | 78 +-
arch/s390/kvm/kvm-s390.h | 32 +-
arch/s390/kvm/sigp.c | 60 +-
arch/x86/include/asm/apicdef.h | 2 +
arch/x86/include/asm/kvm.h | 10 +
.../asm/{kvm_x86_emulate.h => kvm_emulate.h} | 0
arch/x86/include/asm/kvm_host.h | 60 +-
arch/x86/include/asm/kvm_para.h | 2 +
arch/x86/include/asm/msr-index.h | 1 +
arch/x86/include/asm/vmx.h | 8 +
arch/x86/kernel/kvm.c | 7 +-
arch/x86/kernel/kvmclock.c | 4 +-
arch/x86/kvm/Kconfig | 21 +-
arch/x86/kvm/Makefile | 35 +-
arch/x86/kvm/{x86_emulate.c => emulate.c} | 265 ++++++-
arch/x86/kvm/i8254.c | 160 +++--
arch/x86/kvm/i8254.h | 5 +-
arch/x86/kvm/i8259.c | 116 ++--
arch/x86/kvm/irq.h | 1 -
arch/x86/kvm/kvm_cache_regs.h | 9 +
arch/x86/kvm/kvm_svm.h | 51 --
arch/x86/kvm/kvm_timer.h | 2 +-
arch/x86/kvm/lapic.c | 334 ++++++--
arch/x86/kvm/lapic.h | 4 +
arch/x86/kvm/mmu.c | 587 +++++++++-----
arch/x86/kvm/mmu.h | 4 +-
arch/x86/kvm/mmutrace.h | 220 +++++
arch/x86/kvm/paging_tmpl.h | 141 ++--
arch/x86/kvm/svm.c | 889
arch/x86/kvm/timer.c | 16 +-
arch/x86/kvm/trace.h | 355 ++++++++
arch/x86/kvm/vmx.c | 497 ++++++++---
arch/x86/kvm/x86.c | 815
arch/x86/kvm/x86.h | 4 +
arch/x86/mm/highmem_32.c | 1 +
include/asm-generic/Kbuild.asm | 5 +
include/linux/Kbuild | 4 +
include/linux/kvm.h | 127 ++-
include/linux/kvm_host.h | 114 ++-
include/linux/kvm_para.h | 1 +
include/trace/events/kvm.h | 151 ++++
mm/hugetlb.c | 1 +
virt/kvm/Kconfig | 14 +
virt/kvm/coalesced_mmio.c | 74 +-
virt/kvm/coalesced_mmio.h | 1 +
virt/kvm/eventfd.c | 578 +++++++++++++
virt/kvm/ioapic.c | 78 ++-
virt/kvm/iodev.h | 55 +-
virt/kvm/irq_comm.c | 51 +-
virt/kvm/kvm_main.c | 298 +++++--
virt/kvm/kvm_trace.c | 285 -------
80 files changed, 5692 insertions(+), 2160 deletions(-)
create mode 100644 Documentation/kvm/api.txt
create mode 100644 arch/powerpc/kvm/trace.h
rename arch/x86/include/asm/{kvm_x86_emulate.h => kvm_emulate.h} (100%)
rename arch/x86/kvm/{x86_emulate.c => emulate.c} (90%)
delete mode 100644 arch/x86/kvm/kvm_svm.h
create mode 100644 arch/x86/kvm/mmutrace.h
create mode 100644 arch/x86/kvm/trace.h
create mode 100644 include/trace/events/kvm.h
create mode 100644 virt/kvm/Kconfig
create mode 100644 virt/kvm/eventfd.c
delete mode 100644 virt/kvm/kvm_trace.c
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.

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