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Date: Fri, 1 Apr 2022 11:32:56 -0400
From: Paolo Bonzini <pbonzini@...hat.com>
To: torvalds@...ux-foundation.org
Cc: linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: [GIT PULL] Second batch of KVM changes for Linux 5.18
Linus,
The following changes since commit c9b8fecddb5bb4b67e351bbaeaa648a6f7456912:
KVM: use kvcalloc for array allocations (2022-03-21 09:28:41 -0400)
are available in the Git repository at:
https://git.kernel.org/pub/scm/virt/kvm/kvm.git tags/for-linus
for you to fetch changes up to d1fb6a1ca3e535f89628193ab94203533b264c8c:
KVM: x86: fix sending PV IPI (2022-04-01 11:15:52 -0400)
----------------------------------------------------------------
The larger change here is support for in-kernel delivery of Xen events
and timers, but there are also several other smaller features and fixes,
consisting of 1-2 patches each.
* New ioctls to get/set TSC frequency for a whole VM
* Only do MSR filtering for MSRs accessed by rdmsr/wrmsr
* Allow userspace to opt out of hypercall patching
* Documentation improvements
Nested virtualization improvements for AMD:
* Support for "nested nested" optimizations (nested vVMLOAD/VMSAVE,
nested vGIF)
* Allow AVIC to co-exist with a nested guest running
* Fixes for LBR virtualizations when a nested guest is running,
and nested LBR virtualization support
* PAUSE filtering for nested hypervisors
Bugfixes:
* Prevent module exit until all VMs are freed
* PMU Virtualization fixes
* Fix for kvm_irq_delivery_to_apic_fast() NULL-pointer dereferences
* Other miscellaneous bugfixes
Guest support:
* Decoupling of vcpu_is_preempted from PV spinlocks
----------------------------------------------------------------
Boris Ostrovsky (1):
KVM: x86/xen: handle PV spinlocks slowpath
Dan Carpenter (1):
KVM: MMU: fix an IS_ERR() vs NULL bug
David Matlack (2):
KVM: Prevent module exit until all VMs are freed
Revert "KVM: set owner of cpu and vm file operations"
David Woodhouse (16):
KVM: avoid double put_page with gfn-to-pfn cache
KVM: Remove dirty handling from gfn_to_pfn_cache completely
KVM: x86/xen: Use gfn_to_pfn_cache for runstate area
KVM: x86: Use gfn_to_pfn_cache for pv_time
KVM: x86/xen: Use gfn_to_pfn_cache for vcpu_info
KVM: x86/xen: Use gfn_to_pfn_cache for vcpu_time_info
KVM: x86/xen: Make kvm_xen_set_evtchn() reusable from other places
KVM: x86/xen: Support direct injection of event channel events
KVM: x86/xen: Add KVM_XEN_VCPU_ATTR_TYPE_VCPU_ID
KVM: x86/xen: Kernel acceleration for XENVER_version
KVM: x86/xen: Support per-vCPU event channel upcall via local APIC
KVM: x86/xen: Advertise and document KVM_XEN_HVM_CONFIG_EVTCHN_SEND
KVM: x86/xen: Add self tests for KVM_XEN_HVM_CONFIG_EVTCHN_SEND
KVM: x86/xen: Update self test for Xen PV timers
KVM: x86: Accept KVM_[GS]ET_TSC_KHZ as a VM ioctl.
KVM: x86: Test case for TSC scaling and offset sync
Hou Wenlong (3):
KVM: x86/emulator: Emulate RDPID only if it is enabled in guest
KVM: x86: Only do MSR filtering when access MSR by rdmsr/wrmsr
KVM: x86/mmu: Don't rebuild page when the page is synced and no tlb flushing is required
Jim Mattson (2):
KVM: x86/pmu: Use different raw event masks for AMD and Intel
KVM: x86/svm: Clear reserved bits written to PerfEvtSeln MSRs
Joao Martins (3):
KVM: x86/xen: intercept EVTCHNOP_send from guests
KVM: x86/xen: handle PV IPI vcpu yield
KVM: x86/xen: handle PV timers oneshot mode
Jon Kohler (1):
KVM: x86: optimize PKU branching in kvm_load_{guest|host}_xsave_state
Lai Jiangshan (4):
KVM: X86: Change the type of access u32 to u64
KVM: X86: Fix comments in update_permission_bitmask
KVM: X86: Rename variable smap to not_smap in permission_fault()
KVM: X86: Handle implicit supervisor access with SMAP
Li RongQing (2):
KVM: x86: Support the vCPU preemption check with nopvspin and realtime hint
KVM: x86: fix sending PV IPI
Like Xu (2):
KVM: x86/i8259: Remove a dead store of irq in a conditional block
KVM: x86/pmu: Fix and isolate TSX-specific performance event logic
Maxim Levitsky (17):
KVM: x86: nSVM: implement nested VMLOAD/VMSAVE
KVM: x86: SVM: allow to force AVIC to be enabled
KVM: x86: mark synthetic SMM vmexit as SVM_EXIT_SW
KVM: x86: mmu: trace kvm_mmu_set_spte after the new SPTE was set
KVM: x86: SVM: use vmcb01 in init_vmcb
kvm: x86: SVM: use vmcb* instead of svm->vmcb where it makes sense
KVM: x86: SVM: fix avic spec based definitions again
KVM: x86: SVM: move tsc ratio definitions to svm.h
kvm: x86: SVM: remove unused defines
KVM: x86: SVM: fix tsc scaling when the host doesn't support it
KVM: x86: SVM: remove vgif_enabled()
KVM: x86: nSVM: correctly virtualize LBR msrs when L2 is running
KVM: x86: nSVM: implement nested LBR virtualization
KVM: x86: nSVM: support PAUSE filtering when L0 doesn't intercept PAUSE
KVM: x86: nSVM: implement nested vGIF
KVM: x86: allow per cpu apicv inhibit reasons
KVM: x86: SVM: allow AVIC to co-exist with a nested guest running
Nathan Chancellor (1):
KVM: x86: Fix clang -Wimplicit-fallthrough in do_host_cpuid()
Oliver Upton (2):
KVM: x86: Allow userspace to opt out of hypercall patching
selftests: KVM: Test KVM_X86_QUIRK_FIX_HYPERCALL_INSN
Paolo Bonzini (10):
Documentation: kvm: fixes for locking.rst
Documentation: kvm: include new locks
Documentation: KVM: add separate directories for architecture-specific documentation
Documentation: KVM: add virtual CPU errata documentation
Documentation: KVM: add API issues section
KVM: MMU: propagate alloc_workqueue failure
KVM: x86: document limitations of MSR filtering
KVM: MIPS: remove reference to trap&emulate virtualization
x86, kvm: fix compilation for !CONFIG_PARAVIRT_SPINLOCKS or !CONFIG_SMP
KVM: x86/mmu: do compare-and-exchange of gPTE via the user address
Peter Gonda (1):
KVM: SVM: Fix kvm_cache_regs.h inclusions for is_guest_mode()
Sean Christopherson (7):
KVM: x86/mmu: Zap only TDP MMU leafs in zap range and mmu_notifier unmap
KVM: Don't actually set a request when evicting vCPUs for GFN cache invd
KVM: Use enum to track if cached PFN will be used in guest and/or host
KVM: x86: Make APICv inhibit reasons an enum and cleanup naming
KVM: x86: Add wrappers for setting/clearing APICv inhibits
KVM: x86: Trace all APICv inhibit changes and capture overall status
KVM: x86: Don't snapshot "max" TSC if host TSC is constant
Vitaly Kuznetsov (3):
KVM: x86: Check lapic_in_kernel() before attempting to set a SynIC irq
KVM: x86: Avoid theoretical NULL pointer dereference in kvm_irq_delivery_to_apic_fast()
KVM: x86: Forbid VMM to set SYNIC/STIMER MSRs when SynIC wasn't activated
Yi Wang (1):
KVM: SVM: fix panic on out-of-bounds guest IRQ
Zeng Guang (1):
KVM: VMX: Prepare VMCS setting for posted interrupt enabling when APICv is available
Zhenzhong Duan (2):
KVM: x86: cleanup enter_rmode()
KVM: x86: Remove redundant vm_entry_controls_clearbit() call
Documentation/virt/kvm/api.rst | 210 +++-
Documentation/virt/kvm/index.rst | 26 +-
Documentation/virt/kvm/locking.rst | 43 +-
Documentation/virt/kvm/s390/index.rst | 12 +
Documentation/virt/kvm/{ => s390}/s390-diag.rst | 0
Documentation/virt/kvm/{ => s390}/s390-pv-boot.rst | 0
Documentation/virt/kvm/{ => s390}/s390-pv.rst | 0
Documentation/virt/kvm/vcpu-requests.rst | 10 +
.../virt/kvm/{ => x86}/amd-memory-encryption.rst | 0
Documentation/virt/kvm/{ => x86}/cpuid.rst | 0
Documentation/virt/kvm/x86/errata.rst | 39 +
Documentation/virt/kvm/{ => x86}/halt-polling.rst | 0
Documentation/virt/kvm/{ => x86}/hypercalls.rst | 0
Documentation/virt/kvm/x86/index.rst | 19 +
Documentation/virt/kvm/{ => x86}/mmu.rst | 0
Documentation/virt/kvm/{ => x86}/msr.rst | 0
Documentation/virt/kvm/{ => x86}/nested-vmx.rst | 0
.../virt/kvm/{ => x86}/running-nested-guests.rst | 0
Documentation/virt/kvm/{ => x86}/timekeeping.rst | 0
arch/s390/kvm/kvm-s390.c | 2 +-
arch/x86/include/asm/kvm-x86-ops.h | 1 +
arch/x86/include/asm/kvm_host.h | 80 +-
arch/x86/include/asm/svm.h | 14 +-
arch/x86/include/uapi/asm/kvm.h | 11 +-
arch/x86/kernel/asm-offsets_64.c | 4 +-
arch/x86/kernel/kvm.c | 77 +-
arch/x86/kvm/cpuid.c | 1 +
arch/x86/kvm/emulate.c | 8 +-
arch/x86/kvm/hyperv.c | 22 +-
arch/x86/kvm/i8254.c | 6 +-
arch/x86/kvm/i8259.c | 1 -
arch/x86/kvm/irq.c | 10 +-
arch/x86/kvm/irq_comm.c | 2 +-
arch/x86/kvm/kvm_emulate.h | 3 +
arch/x86/kvm/lapic.c | 4 +
arch/x86/kvm/mmu.h | 32 +-
arch/x86/kvm/mmu/mmu.c | 45 +-
arch/x86/kvm/mmu/paging_tmpl.h | 82 +-
arch/x86/kvm/mmu/tdp_mmu.c | 72 +-
arch/x86/kvm/mmu/tdp_mmu.h | 12 +-
arch/x86/kvm/pmu.c | 18 +-
arch/x86/kvm/svm/avic.c | 24 +-
arch/x86/kvm/svm/nested.c | 297 +++--
arch/x86/kvm/svm/pmu.c | 9 +-
arch/x86/kvm/svm/svm.c | 239 ++--
arch/x86/kvm/svm/svm.h | 68 +-
arch/x86/kvm/svm/svm_onhyperv.c | 1 -
arch/x86/kvm/trace.h | 22 +-
arch/x86/kvm/vmx/pmu_intel.c | 14 +-
arch/x86/kvm/vmx/vmx.c | 28 +-
arch/x86/kvm/x86.c | 372 +++---
arch/x86/kvm/xen.c | 1253 ++++++++++++++++----
arch/x86/kvm/xen.h | 62 +-
include/linux/kvm_host.h | 63 +-
include/linux/kvm_types.h | 11 +-
include/uapi/linux/kvm.h | 48 +-
tools/testing/selftests/kvm/.gitignore | 1 +
tools/testing/selftests/kvm/Makefile | 2 +
.../selftests/kvm/x86_64/fix_hypercall_test.c | 170 +++
.../selftests/kvm/x86_64/tsc_scaling_sync.c | 119 ++
.../testing/selftests/kvm/x86_64/xen_shinfo_test.c | 366 +++++-
virt/kvm/kvm_main.c | 22 +-
virt/kvm/pfncache.c | 72 +-
63 files changed, 3157 insertions(+), 972 deletions(-)
create mode 100644 Documentation/virt/kvm/s390/index.rst
rename Documentation/virt/kvm/{ => s390}/s390-diag.rst (100%)
rename Documentation/virt/kvm/{ => s390}/s390-pv-boot.rst (100%)
rename Documentation/virt/kvm/{ => s390}/s390-pv.rst (100%)
rename Documentation/virt/kvm/{ => x86}/amd-memory-encryption.rst (100%)
rename Documentation/virt/kvm/{ => x86}/cpuid.rst (100%)
create mode 100644 Documentation/virt/kvm/x86/errata.rst
rename Documentation/virt/kvm/{ => x86}/halt-polling.rst (100%)
rename Documentation/virt/kvm/{ => x86}/hypercalls.rst (100%)
create mode 100644 Documentation/virt/kvm/x86/index.rst
rename Documentation/virt/kvm/{ => x86}/mmu.rst (100%)
rename Documentation/virt/kvm/{ => x86}/msr.rst (100%)
rename Documentation/virt/kvm/{ => x86}/nested-vmx.rst (100%)
rename Documentation/virt/kvm/{ => x86}/running-nested-guests.rst (100%)
rename Documentation/virt/kvm/{ => x86}/timekeeping.rst (100%)
create mode 100644 tools/testing/selftests/kvm/x86_64/fix_hypercall_test.c
create mode 100644 tools/testing/selftests/kvm/x86_64/tsc_scaling_sync.c
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