Re: [GIT PULL] KVM, AMD PSP and ARM CoreSight changes for 5.13 merge window
From: Paolo Bonzini
Date: Sat May 01 2021 - 04:00:36 EST
On 29/04/21 01:05, Paolo Bonzini wrote:
Linus,
The following changes since commit 523caed9efbb049339706b124185c9358c1b6477:
x86/sgx: Mark sgx_vepc_vm_ops static (2021-04-12 19:48:32 +0200)
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 3bf0fcd754345d7ea63e1446015ba65ece6788ca:
KVM: selftests: Speed up set_memory_region_test (2021-04-26 12:21:27 -0400)
Hi Linus,
is there anything wrong with this pull request? (I saw that in the
meanwhile you did the MIPS pull, so the conflict on
arch/mips/kvm/trap_emul.c will happen when you pull from me).
Mathieu, can you confirm that your coresight branch will *not* be sent
by the ARM maintainers as well? (Typically they are sent to both
upstream maintainers, in this case that would be ARM and KVM/ARM->KVM;
this is also why I waited until Thursday to send my pull request, as I
would have preferred if all the topic branches had been merged already).
Thanks,
Paolo
It's a fairly large pull request for KVM standards. There were quite
a few common topic branches and crossover series with other trees,
especially within KVM ARM, which I need to mention explicitly.
In particular:
- the coresight/next-ETE-TRBE branch from the KVM ARM tree hasn't yet
reached you, so I am CCing the maintainer. Since he sent the patches
as a pull request to Marc Zyngier (the KVM ARM maintainer) at
https://lore.kernel.org/kvmarm/20210406224437.330939-1-mathieu.poirier@xxxxxxxxxx/T/#u,
I actually suspect that from his point of view he's done.
- Herbert Xu and Tom Lendacky asked to include AMD PSP driver changes
in this pull request
- the KVM ARM tree also brought in a handful of "Get rid of oprofile
leftovers" patches for other architectures, but they all have maintainer
acks and are just cleanups, so I am a bit less worried there.
I hope all this is okay.
Despite the juggling of topic branches, a couple conflicts escaped:
- the worst is with the tip rework of x86 TLB flushes. Basically, tip
renamed kvm_flush_tlb_others to kvm_flush_tlb_multi, added a comment and
moved it to a different position. KVM moved it somewhere else, so after
merging you'll have both kvm_flush_tlb_multi and kvm_flush_tlb_others.
You need to take kvm_flush_tlb_multi and paste it in place of
kvm_flush_tlb_others. For everything else the KVM code is the correct
one, again except for s/kvm_flush_tlb_others/kvm_flush_tlb_multi/.
I have placed the relevant hunks of the "diff --combined" output at the
end of this message.
- arch/mips/kvm/trap_emul.c has been deleted in the MIPS tree, which
will cause a modify/delete conflict either now or when merging the
MIPS tree. The conflict is of course solved just by deleting the file.
For the future, Thomas Bogendorfer will either not take KVM patches or
ensure that we have a common topic branch.
Thanks,
Paolo
----------------------------------------------------------------
ARM:
- Stage-2 isolation for the host kernel when running in protected mode
- Guest SVE support when running in nVHE mode
- Force W^X hypervisor mappings in nVHE mode
- ITS save/restore for guests using direct injection with GICv4.1
- nVHE panics now produce readable backtraces
- Guest support for PTP using the ptp_kvm driver
- Performance improvements in the S2 fault handler
x86:
- Optimizations and cleanup of nested SVM code
- AMD: Support for virtual SPEC_CTRL
- Optimizations of the new MMU code: fast invalidation,
zap under read lock, enable/disably dirty page logging under
read lock
- /dev/kvm API for AMD SEV live migration (guest API coming soon)
- support SEV virtual machines sharing the same encryption context
- support SGX in virtual machines
- add a few more statistics
- improved directed yield heuristics
- Lots and lots of cleanups
Generic:
- Rework of MMU notifier interface, simplifying and optimizing
the architecture-specific code
- Some selftests improvements
----------------------------------------------------------------
Alexandru Elisei (4):
Documentation: KVM: Document KVM_GUESTDBG_USE_HW control flag for arm64
KVM: arm64: Initialize VCPU mdcr_el2 before loading it
KVM: arm64: Don't print warning when trapping SPE registers
KVM: arm64: Don't advertise FEAT_SPE to guests
Andrew Scull (5):
bug: Remove redundant condition check in report_bug
bug: Factor out a getter for a bug's file line
bug: Assign values once in bug_get_file_line()
KVM: arm64: Use BUG and BUG_ON in nVHE hyp
KVM: arm64: Log source when panicking from nVHE hyp
Anshuman Khandual (5):
arm64: Add TRBE definitions
coresight: core: Add support for dedicated percpu sinks
coresight: sink: Add TRBE driver
Documentation: coresight: trbe: Sysfs ABI description
Documentation: trace: Add documentation for TRBE
Babu Moger (2):
x86/cpufeatures: Add the Virtual SPEC_CTRL feature
KVM: SVM: Add support for Virtual SPEC_CTRL
Ben Gardon (13):
KVM: x86/mmu: Re-add const qualifier in kvm_tdp_mmu_zap_collapsible_sptes
KVM: x86/mmu: Move kvm_mmu_(get|put)_root to TDP MMU
KVM: x86/mmu: use tdp_mmu_free_sp to free roots
KVM: x86/mmu: Merge TDP MMU put and free root
KVM: x86/mmu: Refactor yield safe root iterator
KVM: x86/mmu: Make TDP MMU root refcount atomic
KVM: x86/mmu: handle cmpxchg failure in kvm_tdp_mmu_get_root
KVM: x86/mmu: Protect the tdp_mmu_roots list with RCU
KVM: x86/mmu: Allow zap gfn range to operate under the mmu read lock
KVM: x86/mmu: Allow zapping collapsible SPTEs to use MMU read lock
KVM: x86/mmu: Allow enabling/disabling dirty logging under MMU read lock
KVM: x86/mmu: Fast invalidation for TDP MMU
KVM: x86/mmu: Tear down roots before kvm_mmu_zap_all_fast returns
Bhaskar Chowdhury (1):
KVM: s390: Fix comment spelling in kvm_s390_vcpu_start()
Brijesh Singh (6):
KVM: SVM: Add KVM_SEV SEND_START command
KVM: SVM: Add KVM_SEND_UPDATE_DATA command
KVM: SVM: Add KVM_SEV_SEND_FINISH command
KVM: SVM: Add support for KVM_SEV_RECEIVE_START command
KVM: SVM: Add KVM_SEV_RECEIVE_UPDATE_DATA command
KVM: SVM: Add KVM_SEV_RECEIVE_FINISH command
Cathy Avery (4):
KVM: SVM: Use a separate vmcb for the nested L2 guest
KVM: nSVM: Track the physical cpu of the vmcb vmrun through the vmcb
KVM: nSVM: Track the ASID generation of the vmcb vmrun through the vmcb
KVM: nSVM: Optimize vmcb12 to vmcb02 save area copies
Claudio Imbrenda (5):
KVM: s390: split kvm_s390_logical_to_effective
KVM: s390: extend kvm_s390_shadow_fault to return entry pointer
KVM: s390: VSIE: correctly handle MVPG when in VSIE
KVM: s390: split kvm_s390_real_to_abs
KVM: s390: VSIE: fix MVPG handling for prefixing and MSO
Daniel Kiss (1):
KVM: arm64: Enable SVE support for nVHE
David Brazdil (1):
KVM: arm64: Support PREL/PLT relocs in EL2 code
David Edmondson (5):
KVM: x86: dump_vmcs should not assume GUEST_IA32_EFER is valid
KVM: x86: dump_vmcs should not conflate EFER and PAT presence in VMCS
KVM: x86: dump_vmcs should consider only the load controls of EFER/PAT
KVM: x86: dump_vmcs should show the effective EFER
KVM: x86: dump_vmcs should include the autoload/autostore MSR lists
Dongli Zhang (1):
KVM: x86: to track if L1 is running L2 VM
Emanuele Giuseppe Esposito (1):
doc/virt/kvm: move KVM_CAP_PPC_MULTITCE in section 8
Eric Auger (11):
KVM: arm64: vgic-v3: Fix some error codes when setting RDIST base
KVM: arm64: Fix KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION read
KVM: arm64: vgic-v3: Fix error handling in vgic_v3_set_redist_base()
KVM: arm/arm64: vgic: Reset base address on kvm_vgic_dist_destroy()
docs: kvm: devices/arm-vgic-v3: enhance KVM_DEV_ARM_VGIC_CTRL_INIT doc
KVM: arm64: Simplify argument passing to vgic_uaccess_[read|write]
kvm: arm64: vgic-v3: Introduce vgic_v3_free_redist_region()
KVM: arm64: vgic-v3: Expose GICR_TYPER.Last for userspace
KVM: selftests: aarch64/vgic-v3 init sequence tests
KVM: selftests: vgic_init kvm selftests fixup
KVM: arm/arm64: Fix KVM_VGIC_V3_ADDR_TYPE_REDIST read
Gavin Shan (3):
KVM: arm64: Hide kvm_mmu_wp_memory_region()
KVM: arm64: Use find_vma_intersection()
KVM: arm64: Don't retrieve memory slot again in page fault handler
Haiwei Li (2):
KVM: vmx: add mismatched size assertions in vmcs_check32()
KVM: x86: Take advantage of kvm_arch_dy_has_pending_interrupt()
Heiko Carstens (1):
KVM: s390: fix guarded storage control register handling
Isaku Yamahata (1):
KVM: VMX: use EPT_VIOLATION_GVA_TRANSLATED instead of 0x100
Jianyong Wu (4):
ptp: Reorganize ptp_kvm.c to make it arch-independent
clocksource: Add clocksource id for arm arch counter
KVM: arm64: Add support for the KVM PTP service
ptp: arm/arm64: Enable ptp_kvm for arm/arm64
Jon Hunter (1):
ptp: Don't print an error if ptp_kvm is not supported
Keqian Zhu (1):
KVM: x86: Remove unused function declaration
Krish Sadhukhan (4):
KVM: nSVM: Add missing checks for reserved bits to svm_set_nested_state()
KVM: nSVM: If VMRUN is single-stepped, queue the #DB intercept in nested_svm_vmexit()
KVM: SVM: Define actual size of IOPM and MSRPM tables
nSVM: Check addresses of MSR and IO permission maps
Marc Zyngier (47):
KVM: arm64: Provide KVM's own save/restore SVE primitives
KVM: arm64: Use {read,write}_sysreg_el1 to access ZCR_EL1
KVM: arm64: Let vcpu_sve_pffr() handle HYP VAs
KVM: arm64: Introduce vcpu_sve_vq() helper
arm64: sve: Provide a conditional update accessor for ZCR_ELx
KVM: arm64: Rework SVE host-save/guest-restore
KVM: arm64: Map SVE context at EL2 when available
KVM: arm64: Save guest's ZCR_EL1 before saving the FPSIMD state
KVM: arm64: Trap host SVE accesses when the FPSIMD state is dirty
KVM: arm64: Save/restore SVE state for nVHE
arm64: Use INIT_SCTLR_EL1_MMU_OFF to disable the MMU on CPU restart
KVM: arm64: Use INIT_SCTLR_EL2_MMU_OFF to disable the MMU on KVM teardown
KVM: arm64: Turn SCTLR_ELx_FLAGS into INIT_SCTLR_EL2_MMU_ON
KVM: arm64: Force SCTLR_EL2.WXN when running nVHE
KVM: arm64: Fix host's ZCR_EL2 restore on nVHE
Merge tag 'v5.12-rc3' into kvm-arm64/host-stage2
irqchip/gic-v3-its: Add a cache invalidation right after vPE unmapping
KVM: arm64: Generate final CTR_EL0 value when running in Protected mode
KVM: arm64: Drop the CPU_FTR_REG_HYP_COPY infrastructure
KVM: arm64: Elect Alexandru as a replacement for Julien as a reviewer
KVM: arm64: Mark the kvmarm ML as moderated for non-subscribers
KVM: arm64: Fix table format for PTP documentation
Merge remote-tracking branch 'coresight/next-ETE-TRBE' into kvmarm-master/next
KVM: arm64: Clarify vcpu reset behaviour
KVM: arm64: Fully zero the vcpu state on reset
Merge branch 'kvm-arm64/debug-5.13' into kvmarm-master/next
Merge branch 'kvm-arm64/host-stage2' into kvmarm-master/next
Merge branch 'kvm-arm64/memslot-fixes' into kvmarm-master/next
Merge branch 'kvm-arm64/misc-5.13' into kvmarm-master/next
Merge branch 'kvm-arm64/nvhe-panic-info' into kvmarm-master/next
Merge branch 'kvm-arm64/nvhe-sve' into kvmarm-master/next
Merge branch 'kvm-arm64/nvhe-wxn' into kvmarm-master/next
Merge branch 'kvm-arm64/ptp' into kvmarm-master/next
Merge branch 'kvm-arm64/vgic-5.13' into kvmarm-master/next
Merge branch 'kvm-arm64/vlpi-save-restore' into kvmarm-master/next
Merge remote-tracking branch 'arm64/for-next/vhe-only' into kvmarm-master/next
Merge remote-tracking branch 'arm64/for-next/neon-softirqs-disabled' into kvmarm-master/next
Merge remote-tracking branch 'coresight/next-ETE-TRBE' into kvmarm-master/next
bug: Provide dummy version of bug_get_file_line() when !GENERIC_BUG
Merge branch 'kvm-arm64/nvhe-panic-info' into kvmarm-master/next
Merge branch 'kvm-arm64/ptp' into kvmarm-master/next
KVM: arm64: Divorce the perf code from oprofile helpers
arm64: Get rid of oprofile leftovers
s390: Get rid of oprofile leftovers
sh: Get rid of oprofile leftovers
perf: Get rid of oprofile leftovers
Merge branch 'kvm-arm64/kill_oprofile_dependency' into kvmarm-master/next
Maxim Levitsky (10):
KVM: nSVM: always use vmcb01 to for vmsave/vmload of guest state
KVM: x86: determine if an exception has an error code only when injecting it.
KVM: x86: mmu: initialize fault.async_page_fault in walk_addr_generic
KVM: x86: add guest_cpuid_is_intel
KVM: nSVM: improve SYSENTER emulation on AMD
KVM: nSVM: call nested_svm_load_cr3 on nested state load
KVM: x86: pending exceptions must not be blocked by an injected event
KVM: x86: implement KVM_CAP_SET_GUEST_DEBUG2
KVM: aarch64: implement KVM_CAP_SET_GUEST_DEBUG2
KVM: s390x: implement KVM_CAP_SET_GUEST_DEBUG2
Nathan Tempelman (1):
KVM: x86: Support KVM VMs sharing SEV context
Paolo Bonzini (27):
KVM: nSVM: rename functions and variables according to vmcbXY nomenclature
KVM: nSVM: do not copy vmcb01->control blindly to vmcb02->control
KVM: nSVM: do not mark all VMCB01 fields dirty on nested vmexit
KVM: nSVM: do not mark all VMCB02 fields dirty on nested vmexit
KVM: nSVM: only copy L1 non-VMLOAD/VMSAVE data in svm_set_nested_state()
KVM: SVM: merge update_cr0_intercept into svm_set_cr0
KVM: SVM: Pass struct kvm_vcpu to exit handlers (and many, many other places)
KVM: SVM: move VMLOAD/VMSAVE to C code
Merge branch 'kvm-fix-svm-races' into HEAD
Merge branch 'kvm-tdp-fix-flushes' into HEAD
Merge branch 'kvm-tdp-fix-rcu' into HEAD
Merge tag 'kvm-s390-next-5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
Merge tag 'kvm-s390-next-5.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
Merge remote-tracking branch 'tip/x86/sgx' into kvm-next
KVM: MMU: load PDPTRs outside mmu_lock
KVM: introduce KVM_CAP_SET_GUEST_DEBUG2
KVM: MMU: protect TDP MMU pages only down to required level
KVM: constify kvm_arch_flush_remote_tlbs_memslot
KVM: MIPS: rework flush_shadow_* callbacks into one that prepares the flush
KVM: MIPS: let generic code call prepare_flush_shadow
KVM: MIPS: defer flush to generic MMU notifier code
KVM: selftests: Always run vCPU thread with blocked SIG_IPI
KVM: x86: document behavior of measurement ioctls with len==0
Merge branch 'kvm-sev-cgroup' into HEAD
Merge tag 'kvmarm-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM: documentation: fix sphinx warnings
KVM: SEV: Mask CPUID[0x8000001F].eax according to supported features
Peter Xu (1):
KVM: selftests: Sync data verify of dirty logging with guest sync
Pierre Morel (1):
KVM: s390: diag9c (directed yield) forwarding
Quentin Perret (35):
KVM: arm64: Initialize kvm_nvhe_init_params early
KVM: arm64: Avoid free_page() in page-table allocator
KVM: arm64: Factor memory allocation out of pgtable.c
KVM: arm64: Introduce a BSS section for use at Hyp
KVM: arm64: Make kvm_call_hyp() a function call at Hyp
KVM: arm64: Allow using kvm_nvhe_sym() in hyp code
KVM: arm64: Introduce an early Hyp page allocator
KVM: arm64: Stub CONFIG_DEBUG_LIST at Hyp
KVM: arm64: Introduce a Hyp buddy page allocator
KVM: arm64: Enable access to sanitized CPU features at EL2
KVM: arm64: Provide __flush_dcache_area at EL2
KVM: arm64: Factor out vector address calculation
arm64: asm: Provide set_sctlr_el2 macro
KVM: arm64: Prepare the creation of s1 mappings at EL2
KVM: arm64: Elevate hypervisor mappings creation at EL2
KVM: arm64: Use kvm_arch for stage 2 pgtable
KVM: arm64: Use kvm_arch in kvm_s2_mmu
KVM: arm64: Set host stage 2 using kvm_nvhe_init_params
KVM: arm64: Refactor kvm_arm_setup_stage2()
KVM: arm64: Refactor __load_guest_stage2()
KVM: arm64: Refactor __populate_fault_info()
KVM: arm64: Make memcache anonymous in pgtable allocator
KVM: arm64: Reserve memory for host stage 2
KVM: arm64: Sort the hypervisor memblocks
KVM: arm64: Always zero invalid PTEs
KVM: arm64: Use page-table to track page ownership
KVM: arm64: Refactor the *_map_set_prot_attr() helpers
KVM: arm64: Add kvm_pgtable_stage2_find_range()
KVM: arm64: Introduce KVM_PGTABLE_S2_NOFWB stage 2 flag
KVM: arm64: Introduce KVM_PGTABLE_S2_IDMAP stage 2 flag
KVM: arm64: Provide sanitized mmfr* registers at EL2
KVM: arm64: Wrap the host with a stage 2
KVM: arm64: Page-align the .hyp sections
KVM: arm64: Disable PMU support in protected mode
KVM: arm64: Protect the .hyp sections from the host
Ricardo Koller (1):
KVM: x86: Move reverse CPUID helpers to separate header file
Sean Christopherson (147):
KVM: x86/mmu: Alloc page for PDPTEs when shadowing 32-bit NPT with 64-bit
KVM: x86/mmu: Capture 'mmu' in a local variable when allocating roots
KVM: x86/mmu: Allocate the lm_root before allocating PAE roots
KVM: x86/mmu: Allocate pae_root and lm_root pages in dedicated helper
KVM: x86/mmu: Ensure MMU pages are available when allocating roots
KVM: x86/mmu: Check PDPTRs before allocating PAE roots
KVM: x86/mmu: Fix and unconditionally enable WARNs to detect PAE leaks
KVM: x86/mmu: Set the C-bit in the PDPTRs and LM pseudo-PDPTRs
KVM: nVMX: Defer the MMU reload to the normal path on an EPTP switch
KVM: x86: Defer the MMU unload to the normal path on an global INVPCID
KVM: x86/mmu: Unexport MMU load/unload functions
KVM: x86/mmu: Sync roots after MMU load iff load as successful
KVM: x86/mmu: WARN on NULL pae_root or lm_root, or bad shadow root level
KVM: SVM: Don't strip the C-bit from CR2 on #PF interception
KVM: nSVM: Set the shadow root level to the TDP level for nested NPT
KVM: x86: Move nVMX's consistency check macro to common code
KVM: nSVM: Trace VM-Enter consistency check failures
KVM: x86: Handle triple fault in L2 without killing L1
KVM: nSVM: Add helper to synthesize nested VM-Exit without collateral
KVM: nSVM: Add VMLOAD/VMSAVE helper to deduplicate code
KVM: x86: Move XSETBV emulation to common code
KVM: x86: Move trivial instruction-based exit handlers to common code
KVM: x86: Move RDPMC emulation to common code
KVM: SVM: Don't manually emulate RDPMC if nrips=0
KVM: SVM: Skip intercepted PAUSE instructions after emulation
KVM: x86/mmu: Remove spurious TLB flush from TDP MMU's change_pte() hook
KVM: x86/mmu: WARN if TDP MMU's set_tdp_spte() sees multiple GFNs
KVM: x86/mmu: Use 'end' param in TDP MMU's test_age_gfn()
KVM: x86/mmu: Add typedefs for rmap/iter handlers
KVM: x86/mmu: Add convenience wrapper for acting on single hva in TDP MMU
KVM: x86/mmu: Check for shadow-present SPTE before querying A/D status
KVM: x86/mmu: Bail from fast_page_fault() if SPTE is not shadow-present
KVM: x86/mmu: Disable MMIO caching if MMIO value collides with L1TF
KVM: x86/mmu: Retry page faults that hit an invalid memslot
KVM: x86/mmu: Don't install bogus MMIO SPTEs if MMIO caching is disabled
KVM: x86/mmu: Handle MMIO SPTEs directly in mmu_set_spte()
KVM: x86/mmu: Drop redundant trace_kvm_mmu_set_spte() in the TDP MMU
KVM: x86/mmu: Rename 'mask' to 'spte' in MMIO SPTE helpers
KVM: x86/mmu: Stop using software available bits to denote MMIO SPTEs
KVM: x86/mmu: Add module param to disable MMIO caching (for testing)
KVM: x86/mmu: Rename and document A/D scheme for TDP SPTEs
KVM: x86/mmu: Use MMIO SPTE bits 53 and 52 for the MMIO generation
KVM: x86/mmu: Document dependency bewteen TDP A/D type and saved bits
KVM: x86/mmu: Move initial kvm_mmu_set_mask_ptes() call into MMU proper
KVM: x86/mmu: Co-locate code for setting various SPTE masks
KVM: x86/mmu: Move logic for setting SPTE masks for EPT into the MMU proper
KVM: x86/mmu: Make Host-writable and MMU-writable bit locations dynamic
KVM: x86/mmu: Use high bits for host/mmu writable masks for EPT SPTEs
KVM: x86/mmu: Use a dedicated bit to track shadow/MMU-present SPTEs
KVM: x86/mmu: Tweak auditing WARN for A/D bits to !PRESENT (was MMIO)
KVM: x86/mmu: Use is_removed_spte() instead of open coded equivalents
KVM: x86/mmu: Use low available bits for removed SPTEs
KVM: x86/mmu: Dump reserved bits if they're detected on non-MMIO SPTE
KVM: x86: Get active PCID only when writing a CR3 value
KVM: VMX: Track common EPTP for Hyper-V's paravirt TLB flush
KVM: VMX: Stash kvm_vmx in a local variable for Hyper-V paravirt TLB flush
KVM: VMX: Fold Hyper-V EPTP checking into it's only caller
KVM: VMX: Do Hyper-V TLB flush iff vCPU's EPTP hasn't been flushed
KVM: VMX: Invalidate hv_tlb_eptp to denote an EPTP mismatch
KVM: VMX: Don't invalidate hv_tlb_eptp if the new EPTP matches
KVM: VMX: Explicitly check for hv_remote_flush_tlb when loading pgd
KVM: VMX: Define Hyper-V paravirt TLB flush fields iff Hyper-V is enabled
KVM: VMX: Skip additional Hyper-V TLB EPTP flushes if one fails
KVM: VMX: Track root HPA instead of EPTP for paravirt Hyper-V TLB flush
KVM: x86/mmu: Use '0' as the one and only value for an invalid PAE root
KVM: x86/mmu: Mark the PAE roots as decrypted for shadow paging
KVM: x86/mmu: Coalesce TDP MMU TLB flushes when zapping collapsible SPTEs
KVM: x86/mmu: Move flushing for "slot" handlers to caller for legacy MMU
KVM: x86/mmu: Coalesce TLB flushes when zapping collapsible SPTEs
KVM: x86/mmu: Coalesce TLB flushes across address spaces for gfn range zap
KVM: x86/mmu: Pass address space ID to __kvm_tdp_mmu_zap_gfn_range()
KVM: x86/mmu: Pass address space ID to TDP MMU root walkers
KVM: x86/mmu: Use leaf-only loop for walking TDP SPTEs when changing SPTE
KVM: Move prototypes for MMU notifier callbacks to generic code
KVM: Move arm64's MMU notifier trace events to generic code
KVM: x86/mmu: Drop trace_kvm_age_page() tracepoint
KVM: x86/mmu: Remove spurious clearing of dirty bit from TDP MMU SPTE
KVM: x86/mmu: Simplify code for aging SPTEs in TDP MMU
KVM: SVM: Use online_vcpus, not created_vcpus, to iterate over vCPUs
KVM: SVM: Do not set sev->es_active until KVM_SEV_ES_INIT completes
KVM: SVM: Do not allow SEV/SEV-ES initialization after vCPUs are created
KVM: x86: Account a variety of miscellaneous allocations
KVM: Explicitly use GFP_KERNEL_ACCOUNT for 'struct kvm_vcpu' allocations
KVM: Assert that notifier count is elevated in .change_pte()
KVM: Move x86's MMU notifier memslot walkers to generic code
KVM: arm64: Convert to the gfn-based MMU notifier callbacks
KVM: MIPS/MMU: Convert to the gfn-based MMU notifier callbacks
KVM: PPC: Convert to the gfn-based MMU notifier callbacks
KVM: Kill off the old hva-based MMU notifier callbacks
KVM: Move MMU notifier's mmu_lock acquisition into common helper
KVM: Take mmu_lock when handling MMU notifier iff the hva hits a memslot
KVM: x86/mmu: Allow yielding during MMU notifier unmap/zap, if possible
KVM: SVM: Don't set current_vmcb->cpu when switching vmcb
KVM: SVM: Drop vcpu_svm.vmcb_pa
KVM: SVM: Add a comment to clarify what vcpu_svm.vmcb points at
KVM: SVM: Enhance and clean up the vmcb tracking comment in pre_svm_run()
KVM: Destroy I/O bus devices on unregister failure _after_ sync'ing SRCU
KVM: Stop looking for coalesced MMIO zones if the bus is destroyed
KVM: Add proper lockdep assertion in I/O bus unregister
KVM: x86: Export kvm_mmu_gva_to_gpa_{read,write}() for SGX (VMX)
KVM: x86: Define new #PF SGX error code bit
KVM: x86: Add support for reverse CPUID lookup of scattered features
KVM: x86: Add reverse-CPUID lookup support for scattered SGX features
KVM: VMX: Add basic handling of VM-Exit from SGX enclave
KVM: VMX: Frame in ENCLS handler for SGX virtualization
KVM: VMX: Add SGX ENCLS[ECREATE] handler to enforce CPUID restrictions
KVM: VMX: Add emulation of SGX Launch Control LE hash MSRs
KVM: VMX: Add ENCLS[EINIT] handler to support SGX Launch Control (LC)
KVM: VMX: Enable SGX virtualization for SGX1, SGX2 and LC
KVM: x86: Add capability to grant VM access to privileged SGX attribute
crypto: ccp: Free SEV device if SEV init fails
crypto: ccp: Detect and reject "invalid" addresses destined for PSP
crypto: ccp: Reject SEV commands with mismatching command buffer
crypto: ccp: Play nice with vmalloc'd memory for SEV command structs
crypto: ccp: Use the stack for small SEV command buffers
crypto: ccp: Use the stack and common buffer for status commands
crypto: ccp: Use the stack and common buffer for INIT command
KVM: SVM: Allocate SEV command structures on local stack
KVM: x86: Fix implicit enum conversion goof in scattered reverse CPUID code
KVM: VMX: Invert the inlining of MSR interception helpers
KVM: SVM: Inject #GP on guest MSR_TSC_AUX accesses if RDTSCP unsupported
KVM: SVM: Clear MSR_TSC_AUX[63:32] on write
KVM: SVM: Delay restoration of host MSR_TSC_AUX until return to userspace
KVM: VMX: Intercept FS/GS_BASE MSR accesses for 32-bit KVM
KVM: x86: Remove emulator's broken checks on CR0/CR3/CR4 loads
KVM: x86: Check CR3 GPA for validity regardless of vCPU mode
KVM: SVM: Truncate GPR value for DR and CR accesses in !64-bit mode
KVM: VMX: Truncate GPR value for DR and CR reads in !64-bit mode
KVM: nVMX: Truncate bits 63:32 of VMCS field on nested check in !64-bit
KVM: nVMX: Truncate base/index GPR value on address calc in !64-bit
KVM: x86/xen: Drop RAX[63:32] when processing hypercall
KVM: SVM: Use default rAX size for INVLPGA emulation
KVM: x86: Rename GPR accessors to make mode-aware variants the defaults
x86/sev: Drop redundant and potentially misleading 'sev_enabled'
KVM: SVM: Zero out the VMCB array used to track SEV ASID association
KVM: SVM: Free sev_asid_bitmap during init if SEV setup fails
KVM: SVM: Disable SEV/SEV-ES if NPT is disabled
KVM: SVM: Move SEV module params/variables to sev.c
KVM: SVM: Append "_enabled" to module-scoped SEV/SEV-ES control variables
KVM: SVM: Condition sev_enabled and sev_es_enabled on CONFIG_KVM_AMD_SEV=y
KVM: SVM: Enable SEV/SEV-ES functionality by default (when supported)
KVM: SVM: Unconditionally invoke sev_hardware_teardown()
KVM: SVM: Explicitly check max SEV ASID during sev_hardware_setup()
KVM: SVM: Move SEV VMCB tracking allocation to sev.c
KVM: SVM: Drop redundant svm_sev_enabled() helper
KVM: SVM: Remove an unnecessary prototype declaration of sev_flush_asids()
KVM: SVM: Skip SEV cache flush if no ASIDs have been used
Shenming Lu (4):
irqchip/gic-v3-its: Drop the setting of PTZ altogether
KVM: arm64: GICv4.1: Add function to get VLPI state
KVM: arm64: GICv4.1: Try to save VLPI state in save_pending_tables
KVM: arm64: GICv4.1: Give a chance to save VLPI state
Steve Rutherford (1):
KVM: SVM: Add support for KVM_SEV_SEND_CANCEL command
Suzuki K Poulose (15):
perf: aux: Add flags for the buffer format
perf: aux: Add CoreSight PMU buffer formats
arm64: Add support for trace synchronization barrier
KVM: arm64: Handle access to TRFCR_EL1
KVM: arm64: Move SPE availability check to VCPU load
arm64: KVM: Enable access to TRBE support for host
coresight: etm4x: Move ETM to prohibited region for disable
coresight: etm-perf: Allow an event to use different sinks
coresight: Do not scan for graph if none is present
coresight: etm4x: Add support for PE OS lock
coresight: ete: Add support for ETE sysreg access
coresight: ete: Add support for ETE tracing
dts: bindings: Document device tree bindings for ETE
coresight: etm-perf: Handle stale output handles
dts: bindings: Document device tree bindings for Arm TRBE
Thomas Gleixner (1):
time: Add mechanism to recognize clocksource in time_get_snapshot
Tom Lendacky (1):
KVM: SVM: Make sure GHCB is mapped before updating
Uros Bizjak (1):
KVM/SVM: Move vmenter.S exception fixups out of line
Vitaly Kuznetsov (3):
KVM: x86/vPMU: Forbid reading from MSR_F15H_PERF MSRs when guest doesn't have X86_FEATURE_PERFCTR_CORE
KVM: x86: Properly handle APF vs disabled LAPIC situation
KVM: selftests: Speed up set_memory_region_test
Wang Wensheng (1):
KVM: arm64: Fix error return code in init_hyp_mode()
Wanpeng Li (5):
x86/kvm: Don't bother __pv_cpu_mask when !CONFIG_SMP
KVM: X86: Count attempted/successful directed yield
KVM: X86: Do not yield to self
KVM: Boost vCPU candidate in user mode which is delivering interrupt
KVM: X86: Fix failure to boost kernel lock holder candidate in SEV-ES guests
Wei Yongjun (2):
coresight: core: Make symbol 'csdev_sink' static
coresight: trbe: Fix return value check in arm_trbe_register_coresight_cpu()
Will Deacon (5):
arm64: lib: Annotate {clear, copy}_page() as position-independent
KVM: arm64: Link position-independent string routines into .hyp.text
arm64: kvm: Add standalone ticket spinlock implementation for use at hyp
arm/arm64: Probe for the presence of KVM hypervisor
KVM: arm64: Advertise KVM UID to guests via SMCCC
Xiaofei Tan (1):
arm64: sve: Provide sve_cond_update_zcr_vq fallback when !ARM64_SVE
Xu Jia (1):
KVM: arm64: Make symbol '_kvm_host_prot_finalize' static
Yanan Wang (8):
tools/headers: sync headers of asm-generic/hugetlb_encode.h
KVM: selftests: Print the errno besides error-string in TEST_ASSERT
KVM: selftests: Make a generic helper to get vm guest mode strings
KVM: selftests: Add a helper to get system configured THP page size
KVM: selftests: Add a helper to get system default hugetlb page size
KVM: selftests: List all hugetlb src types specified with page sizes
KVM: selftests: Adapt vm_userspace_mem_region_add to new helpers
KVM: selftests: Add a test for kvm page table code
Yang Yingliang (1):
KVM: selftests: remove redundant semi-colon
Zenghui Yu (2):
KVM: arm64: GICv4.1: Restore VLPI pending state to physical side
KVM: arm64: Fix Function ID typo for PTP_KVM service
Zhenzhong Duan (1):
selftests: kvm: Fix the check of return value
.../ABI/testing/sysfs-bus-coresight-devices-trbe | 14 +
Documentation/devicetree/bindings/arm/ete.yaml | 75 ++
Documentation/devicetree/bindings/arm/trbe.yaml | 49 +
Documentation/trace/coresight/coresight-trbe.rst | 38 +
Documentation/virt/kvm/amd-memory-encryption.rst | 143 +++
Documentation/virt/kvm/api.rst | 214 +++-
Documentation/virt/kvm/arm/index.rst | 1 +
Documentation/virt/kvm/arm/ptp_kvm.rst | 25 +
Documentation/virt/kvm/devices/arm-vgic-its.rst | 2 +-
Documentation/virt/kvm/devices/arm-vgic-v3.rst | 2 +-
Documentation/virt/kvm/locking.rst | 49 +-
Documentation/virt/kvm/s390-diag.rst | 33 +
MAINTAINERS | 6 +-
arch/arm/include/asm/hypervisor.h | 3 +
arch/arm64/include/asm/assembler.h | 27 +-
arch/arm64/include/asm/barrier.h | 1 +
arch/arm64/include/asm/el2_setup.h | 13 +
arch/arm64/include/asm/fpsimd.h | 11 +
arch/arm64/include/asm/fpsimdmacros.h | 10 +-
arch/arm64/include/asm/hyp_image.h | 7 +
arch/arm64/include/asm/hypervisor.h | 3 +
arch/arm64/include/asm/kvm_arm.h | 2 +
arch/arm64/include/asm/kvm_asm.h | 9 +
arch/arm64/include/asm/kvm_host.h | 55 +-
arch/arm64/include/asm/kvm_hyp.h | 14 +-
arch/arm64/include/asm/kvm_mmu.h | 25 +-
arch/arm64/include/asm/kvm_pgtable.h | 164 ++-
arch/arm64/include/asm/pgtable-prot.h | 4 +-
arch/arm64/include/asm/sections.h | 1 +
arch/arm64/include/asm/sysreg.h | 59 +-
arch/arm64/kernel/asm-offsets.c | 3 +
arch/arm64/kernel/cpu-reset.S | 5 +-
arch/arm64/kernel/hyp-stub.S | 3 +-
arch/arm64/kernel/image-vars.h | 34 +-
arch/arm64/kernel/vmlinux.lds.S | 74 +-
arch/arm64/kvm/arm.c | 220 +++-
arch/arm64/kvm/debug.c | 118 +-
arch/arm64/kvm/fpsimd.c | 26 +-
arch/arm64/kvm/guest.c | 11 +-
arch/arm64/kvm/handle_exit.c | 45 +
arch/arm64/kvm/hyp/Makefile | 2 +-
arch/arm64/kvm/hyp/fpsimd.S | 10 +
arch/arm64/kvm/hyp/include/hyp/switch.h | 107 +-
arch/arm64/kvm/hyp/include/nvhe/early_alloc.h | 14 +
arch/arm64/kvm/hyp/include/nvhe/gfp.h | 68 ++
arch/arm64/kvm/hyp/include/nvhe/mem_protect.h | 36 +
arch/arm64/kvm/hyp/include/nvhe/memory.h | 51 +
arch/arm64/kvm/hyp/include/nvhe/mm.h | 96 ++
arch/arm64/kvm/hyp/include/nvhe/spinlock.h | 92 ++
arch/arm64/kvm/hyp/nvhe/Makefile | 9 +-
arch/arm64/kvm/hyp/nvhe/cache.S | 13 +
arch/arm64/kvm/hyp/nvhe/debug-sr.c | 56 +-
arch/arm64/kvm/hyp/nvhe/early_alloc.c | 54 +
arch/arm64/kvm/hyp/nvhe/gen-hyprel.c | 18 +
arch/arm64/kvm/hyp/nvhe/host.S | 18 +-
arch/arm64/kvm/hyp/nvhe/hyp-init.S | 54 +-
arch/arm64/kvm/hyp/nvhe/hyp-main.c | 75 +-
arch/arm64/kvm/hyp/nvhe/hyp-smp.c | 6 +-
arch/arm64/kvm/hyp/nvhe/hyp.lds.S | 1 +
arch/arm64/kvm/hyp/nvhe/mem_protect.c | 279 +++++
arch/arm64/kvm/hyp/nvhe/mm.c | 173 +++
arch/arm64/kvm/hyp/nvhe/page_alloc.c | 195 ++++
arch/arm64/kvm/hyp/nvhe/psci-relay.c | 4 +-
arch/arm64/kvm/hyp/nvhe/setup.c | 214 ++++
arch/arm64/kvm/hyp/nvhe/stub.c | 22 +
arch/arm64/kvm/hyp/nvhe/switch.c | 26 +-
arch/arm64/kvm/hyp/nvhe/tlb.c | 4 +-
arch/arm64/kvm/hyp/pgtable.c | 410 +++++--
arch/arm64/kvm/hyp/reserved_mem.c | 113 ++
arch/arm64/kvm/hyp/vhe/switch.c | 4 +-
arch/arm64/kvm/hypercalls.c | 80 +-
arch/arm64/kvm/mmu.c | 254 +++--
arch/arm64/kvm/perf.c | 7 +-
arch/arm64/kvm/pmu-emul.c | 2 +-
arch/arm64/kvm/pmu.c | 8 +-
arch/arm64/kvm/reset.c | 51 +-
arch/arm64/kvm/sys_regs.c | 16 +
arch/arm64/kvm/trace_arm.h | 66 --
arch/arm64/kvm/va_layout.c | 7 +
arch/arm64/kvm/vgic/vgic-init.c | 12 +-
arch/arm64/kvm/vgic/vgic-its.c | 6 +-
arch/arm64/kvm/vgic/vgic-kvm-device.c | 7 +-
arch/arm64/kvm/vgic/vgic-mmio-v3.c | 81 +-
arch/arm64/kvm/vgic/vgic-mmio.c | 10 +-
arch/arm64/kvm/vgic/vgic-v3.c | 66 +-
arch/arm64/kvm/vgic/vgic-v4.c | 38 +
arch/arm64/kvm/vgic/vgic.h | 2 +
arch/arm64/lib/clear_page.S | 4 +-
arch/arm64/lib/copy_page.S | 4 +-
arch/arm64/mm/init.c | 3 +
arch/mips/include/asm/kvm_host.h | 17 +-
arch/mips/kvm/mips.c | 21 +-
arch/mips/kvm/mmu.c | 100 +-
arch/mips/kvm/trap_emul.c | 13 +-
arch/mips/kvm/vz.c | 19 +-
arch/powerpc/include/asm/kvm_book3s.h | 12 +-
arch/powerpc/include/asm/kvm_host.h | 7 -
arch/powerpc/include/asm/kvm_ppc.h | 9 +-
arch/powerpc/kvm/book3s.c | 18 +-
arch/powerpc/kvm/book3s.h | 10 +-
arch/powerpc/kvm/book3s_64_mmu_hv.c | 98 +-
arch/powerpc/kvm/book3s_64_mmu_radix.c | 25 +-
arch/powerpc/kvm/book3s_hv.c | 12 +-
arch/powerpc/kvm/book3s_pr.c | 56 +-
arch/powerpc/kvm/e500_mmu_host.c | 29 +-
arch/powerpc/kvm/trace_booke.h | 15 -
arch/s390/include/asm/kvm_host.h | 5 +
arch/s390/include/asm/smp.h | 1 +
arch/s390/kernel/smp.c | 1 +
arch/s390/kvm/diag.c | 31 +-
arch/s390/kvm/gaccess.c | 30 +-
arch/s390/kvm/gaccess.h | 60 +-
arch/s390/kvm/kvm-s390.c | 15 +-
arch/s390/kvm/kvm-s390.h | 8 +
arch/s390/kvm/vsie.c | 109 +-
arch/sh/kernel/perf_event.c | 18 -
arch/x86/include/asm/cpufeatures.h | 1 +
arch/x86/include/asm/kvm_host.h | 67 +-
arch/x86/include/asm/mem_encrypt.h | 1 -
arch/x86/include/asm/svm.h | 4 +-
arch/x86/include/asm/vmx.h | 1 +
arch/x86/include/uapi/asm/vmx.h | 1 +
arch/x86/kernel/kvm.c | 118 +-
arch/x86/kvm/Makefile | 2 +
arch/x86/kvm/cpuid.c | 98 +-
arch/x86/kvm/cpuid.h | 155 +--
arch/x86/kvm/emulate.c | 80 +-
arch/x86/kvm/kvm_cache_regs.h | 19 +-
arch/x86/kvm/lapic.c | 8 +-
arch/x86/kvm/mmu.h | 23 +-
arch/x86/kvm/mmu/mmu.c | 637 ++++++-----
arch/x86/kvm/mmu/mmu_audit.c | 2 +-
arch/x86/kvm/mmu/mmu_internal.h | 44 +-
arch/x86/kvm/mmu/paging_tmpl.h | 3 +-
arch/x86/kvm/mmu/spte.c | 159 ++-
arch/x86/kvm/mmu/spte.h | 141 ++-
arch/x86/kvm/mmu/tdp_mmu.c | 740 +++++++------
arch/x86/kvm/mmu/tdp_mmu.h | 51 +-
arch/x86/kvm/reverse_cpuid.h | 186 ++++
arch/x86/kvm/svm/avic.c | 24 +-
arch/x86/kvm/svm/nested.c | 573 ++++++----
arch/x86/kvm/svm/sev.c | 922 ++++++++++++----
arch/x86/kvm/svm/svm.c | 1107 +++++++++----------
arch/x86/kvm/svm/svm.h | 91 +-
arch/x86/kvm/svm/vmenter.S | 47 +-
arch/x86/kvm/vmx/nested.c | 83 +-
arch/x86/kvm/vmx/nested.h | 5 +
arch/x86/kvm/vmx/sgx.c | 502 +++++++++
arch/x86/kvm/vmx/sgx.h | 34 +
arch/x86/kvm/vmx/vmcs12.c | 1 +
arch/x86/kvm/vmx/vmcs12.h | 4 +-
arch/x86/kvm/vmx/vmx.c | 432 ++++----
arch/x86/kvm/vmx/vmx.h | 39 +-
arch/x86/kvm/vmx/vmx_ops.h | 4 +
arch/x86/kvm/x86.c | 214 +++-
arch/x86/kvm/x86.h | 18 +-
arch/x86/mm/mem_encrypt.c | 10 +-
arch/x86/mm/mem_encrypt_identity.c | 1 -
drivers/clocksource/arm_arch_timer.c | 36 +
drivers/crypto/ccp/sev-dev.c | 193 ++--
drivers/crypto/ccp/sev-dev.h | 4 +-
drivers/firmware/psci/psci.c | 2 +
drivers/firmware/smccc/Makefile | 2 +-
drivers/firmware/smccc/kvm_guest.c | 50 +
drivers/firmware/smccc/smccc.c | 1 +
drivers/hwtracing/coresight/Kconfig | 24 +-
drivers/hwtracing/coresight/Makefile | 1 +
drivers/hwtracing/coresight/coresight-core.c | 29 +-
drivers/hwtracing/coresight/coresight-etm-perf.c | 119 +-
drivers/hwtracing/coresight/coresight-etm4x-core.c | 161 ++-
.../hwtracing/coresight/coresight-etm4x-sysfs.c | 19 +-
drivers/hwtracing/coresight/coresight-etm4x.h | 83 +-
drivers/hwtracing/coresight/coresight-platform.c | 6 +
drivers/hwtracing/coresight/coresight-priv.h | 3 +
drivers/hwtracing/coresight/coresight-trbe.c | 1157 ++++++++++++++++++++
drivers/hwtracing/coresight/coresight-trbe.h | 152 +++
drivers/irqchip/irq-gic-v3-its.c | 18 +-
drivers/perf/arm_pmu.c | 30 -
drivers/ptp/Kconfig | 2 +-
drivers/ptp/Makefile | 2 +
drivers/ptp/ptp_kvm_arm.c | 28 +
drivers/ptp/{ptp_kvm.c => ptp_kvm_common.c} | 85 +-
drivers/ptp/ptp_kvm_x86.c | 97 ++
include/kvm/arm_pmu.h | 4 +
include/kvm/arm_vgic.h | 1 +
include/linux/arm-smccc.h | 41 +
include/linux/bug.h | 10 +
include/linux/clocksource.h | 6 +
include/linux/clocksource_ids.h | 12 +
include/linux/coresight.h | 13 +
include/linux/kvm_host.h | 24 +-
include/linux/perf_event.h | 2 -
include/linux/psp-sev.h | 18 +-
include/linux/ptp_kvm.h | 19 +
include/linux/timekeeping.h | 12 +-
include/trace/events/kvm.h | 90 +-
include/uapi/linux/kvm.h | 45 +
include/uapi/linux/perf_event.h | 13 +-
kernel/events/core.c | 5 -
kernel/time/clocksource.c | 2 +
kernel/time/timekeeping.c | 1 +
lib/bug.c | 54 +-
tools/include/asm-generic/hugetlb_encode.h | 3 +
tools/testing/selftests/kvm/.gitignore | 2 +
tools/testing/selftests/kvm/Makefile | 4 +
tools/testing/selftests/kvm/aarch64/vgic_init.c | 551 ++++++++++
tools/testing/selftests/kvm/dirty_log_test.c | 69 +-
tools/testing/selftests/kvm/include/kvm_util.h | 13 +-
tools/testing/selftests/kvm/include/test_util.h | 21 +-
tools/testing/selftests/kvm/kvm_page_table_test.c | 506 +++++++++
tools/testing/selftests/kvm/lib/assert.c | 4 +-
tools/testing/selftests/kvm/lib/kvm_util.c | 138 ++-
tools/testing/selftests/kvm/lib/test_util.c | 163 ++-
.../testing/selftests/kvm/set_memory_region_test.c | 61 +-
.../testing/selftests/kvm/x86_64/xen_shinfo_test.c | 2 +-
virt/kvm/coalesced_mmio.c | 19 +-
virt/kvm/kvm_main.c | 303 +++--
217 files changed, 12444 insertions(+), 4028 deletions(-)
diff --combined arch/x86/kernel/kvm.c
index 5d32fa477a62,bd01a6131edf..000000000000
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@@ -574,6 -574,49 +574,54 @@@ static void kvm_smp_send_call_func_ipi(
}
}
-static void kvm_flush_tlb_others(const struct cpumask *cpumask,
++static void kvm_flush_tlb_multi(const struct cpumask *cpumask,
+ const struct flush_tlb_info *info)
+ {
+ u8 state;
+ int cpu;
+ struct kvm_steal_time *src;
+ struct cpumask *flushmask = this_cpu_cpumask_var_ptr(__pv_cpu_mask);
+
+ cpumask_copy(flushmask, cpumask);
+ /*
+ * We have to call flush only on online vCPUs. And
+ * queue flush_on_enter for pre-empted vCPUs
+ */
+ for_each_cpu(cpu, flushmask) {
++ /*
++ * The local vCPU is never preempted, so we do not explicitly
++ * skip check for local vCPU - it will never be cleared from
++ * flushmask.
++ */
+ src = &per_cpu(steal_time, cpu);
+ state = READ_ONCE(src->preempted);
+ if ((state & KVM_VCPU_PREEMPTED)) {
+ if (try_cmpxchg(&src->preempted, &state,
+ state | KVM_VCPU_FLUSH_TLB))
+ __cpumask_clear_cpu(cpu, flushmask);
+ }
+ }
+
- native_flush_tlb_others(flushmask, info);
++ native_flush_tlb_multi(flushmask, info);
+ }
+
+ static __init int kvm_alloc_cpumask(void)
+ {
+ int cpu;
+
+ if (!kvm_para_available() || nopv)
+ return 0;
+
+ if (pv_tlb_flush_supported() || pv_ipi_supported())
+ for_each_possible_cpu(cpu) {
+ zalloc_cpumask_var_node(per_cpu_ptr(&__pv_cpu_mask, cpu),
+ GFP_KERNEL, cpu_to_node(cpu));
+ }
+
+ return 0;
+ }
+ arch_initcall(kvm_alloc_cpumask);
+
static void __init kvm_smp_prepare_boot_cpu(void)
{
/*
@@@ -611,38 -654,8 +659,8 @@@ static int kvm_cpu_down_prepare(unsigne
local_irq_enable();
return 0;
}
- #endif
-
- static void kvm_flush_tlb_multi(const struct cpumask *cpumask,
- const struct flush_tlb_info *info)
- {
- u8 state;
- int cpu;
- struct kvm_steal_time *src;
- struct cpumask *flushmask = this_cpu_cpumask_var_ptr(__pv_cpu_mask);
-
- cpumask_copy(flushmask, cpumask);
- /*
- * We have to call flush only on online vCPUs. And
- * queue flush_on_enter for pre-empted vCPUs
- */
- for_each_cpu(cpu, flushmask) {
- /*
- * The local vCPU is never preempted, so we do not explicitly
- * skip check for local vCPU - it will never be cleared from
- * flushmask.
- */
- src = &per_cpu(steal_time, cpu);
- state = READ_ONCE(src->preempted);
- if ((state & KVM_VCPU_PREEMPTED)) {
- if (try_cmpxchg(&src->preempted, &state,
- state | KVM_VCPU_FLUSH_TLB))
- __cpumask_clear_cpu(cpu, flushmask);
- }
- }
- native_flush_tlb_multi(flushmask, info);
- }
+ #endif
static void __init kvm_guest_init(void)
{
@@@ -655,15 -668,9 +673,9 @@@
if (kvm_para_has_feature(KVM_FEATURE_STEAL_TIME)) {
has_steal_clock = 1;
- pv_ops.time.steal_clock = kvm_steal_clock;
+ static_call_update(pv_steal_clock, kvm_steal_clock);
}
- if (pv_tlb_flush_supported()) {
- pv_ops.mmu.flush_tlb_multi = kvm_flush_tlb_multi;
- pv_ops.mmu.tlb_remove_table = tlb_remove_table;
- pr_info("KVM setup pv remote TLB flush\n");
- }
-
if (kvm_para_has_feature(KVM_FEATURE_PV_EOI))
apic_set_eoi_write(kvm_guest_apic_eoi_write);
@@@ -673,6 -680,12 +685,12 @@@
}
#ifdef CONFIG_SMP
+ if (pv_tlb_flush_supported()) {
- pv_ops.mmu.flush_tlb_others = kvm_flush_tlb_others;
++ pv_ops.mmu.flush_tlb_multi = kvm_flush_tlb_multi;
+ pv_ops.mmu.tlb_remove_table = tlb_remove_table;
+ pr_info("KVM setup pv remote TLB flush\n");
+ }
+
smp_ops.smp_prepare_boot_cpu = kvm_smp_prepare_boot_cpu;
if (pv_sched_yield_supported()) {
smp_ops.send_call_func_ipi = kvm_smp_send_call_func_ipi;