* [GIT PULL] First batch of KVM changes for Linux 5.16
@ 2021-11-02 16:53 Paolo Bonzini
2021-11-02 18:37 ` pr-tracker-bot
2021-11-08 13:48 ` Christian Borntraeger
0 siblings, 2 replies; 4+ messages in thread
From: Paolo Bonzini @ 2021-11-02 16:53 UTC (permalink / raw)
To: torvalds; +Cc: linux-kernel, kvm
Linus,
The following changes since commit 8228c77d8b56e3f735baf71fefb1b548c23691a7:
KVM: x86: switch pvclock_gtod_sync_lock to a raw spinlock (2021-10-25 08:14:38 -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 52cf891d8dbd7592261fa30f373410b97f22b76c:
Merge tag 'kvm-riscv-5.16-2' of https://github.com/kvm-riscv/linux into HEAD (2021-11-02 09:15:31 -0400)
----------------------------------------------------------------
ARM:
* More progress on the protected VM front, now with the full
fixed feature set as well as the limitation of some hypercalls
after initialisation.
* Cleanup of the RAZ/WI sysreg handling, which was pointlessly
complicated
* Fixes for the vgic placement in the IPA space, together with a
bunch of selftests
* More memcg accounting of the memory allocated on behalf of a guest
* Timer and vgic selftests
* Workarounds for the Apple M1 broken vgic implementation
* KConfig cleanups
* New kvmarm.mode=none option, for those who really dislike us
RISC-V:
* New KVM port.
x86:
* New API to control TSC offset from userspace
* TSC scaling for nested hypervisors on SVM
* Switch masterclock protection from raw_spin_lock to seqcount
* Clean up function prototypes in the page fault code and avoid
repeated memslot lookups
* Convey the exit reason to userspace on emulation failure
* Configure time between NX page recovery iterations
* Expose Predictive Store Forwarding Disable CPUID leaf
* Allocate page tracking data structures lazily (if the i915
KVM-GT functionality is not compiled in)
* Cleanups, fixes and optimizations for the shadow MMU code
s390:
* SIGP Fixes
* initial preparations for lazy destroy of secure VMs
* storage key improvements/fixes
* Log the guest CPNC
Starting from this release, KVM-PPC patches will come from
Michael Ellerman's PPC tree.
----------------------------------------------------------------
There is a trivial Kconfig conflict in arch/riscv, and a slightly
less trivial conflict with Thomas's x86 FPU rework. The latter is
due to fx_init going away in my tree (long before Thomas started his
work, or I would have synchronized better). The conflict resolution
is at the bottom of this email.
Alexandru Elisei (4):
KVM: arm64: Return early from read_id_reg() if register is RAZ
KVM: arm64: Use get_raz_reg() for userspace reads of PMSWINC_EL0
KVM: arm64: Replace get_raz_id_reg() with get_raz_reg()
Documentation: admin-guide: Document side effects when pKVM is enabled
Andrei Vagin (1):
KVM: x86/mmu: kvm_faultin_pfn has to return false if pfh is returned
Anup Patel (15):
RISC-V: Add hypervisor extension related CSR defines
RISC-V: Add initial skeletal KVM support
RISC-V: KVM: Implement VCPU create, init and destroy functions
RISC-V: KVM: Implement VCPU interrupts and requests handling
RISC-V: KVM: Implement KVM_GET_ONE_REG/KVM_SET_ONE_REG ioctls
RISC-V: KVM: Implement VCPU world-switch
RISC-V: KVM: Handle MMIO exits for VCPU
RISC-V: KVM: Handle WFI exits for VCPU
RISC-V: KVM: Implement VMID allocator
RISC-V: KVM: Implement stage2 page table programming
RISC-V: KVM: Implement MMU notifiers
RISC-V: KVM: Document RISC-V specific parts of KVM API
RISC-V: KVM: Add MAINTAINERS entry
RISC-V: KVM: Factor-out FP virtualization into separate sources
RISC-V: KVM: Fix GPA passed to __kvm_riscv_hfence_gvma_xyz() functions
Atish Patra (4):
RISC-V: KVM: Add timer functionality
RISC-V: KVM: FP lazy save/restore
RISC-V: KVM: Implement ONE REG interface for FP registers
RISC-V: KVM: Add SBI v0.1 support
Babu Moger (1):
KVM: x86: Expose Predictive Store Forwarding Disable
Bixuan Cui (1):
RISC-V: KVM: fix boolreturn.cocci warnings
Claudio Imbrenda (5):
KVM: s390: pv: add macros for UVC CC values
KVM: s390: pv: avoid double free of sida page
KVM: s390: pv: avoid stalls for kvm_s390_pv_init_vm
KVM: s390: pv: avoid stalls when making pages secure
KVM: s390: pv: properly handle page flags for protected guests
Colin Ian King (1):
kvm: selftests: Fix spelling mistake "missmatch" -> "mismatch"
Collin Walling (1):
KVM: s390: add debug statement for diag 318 CPNC data
David Edmondson (4):
KVM: x86: Clarify the kvm_run.emulation_failure structure layout
KVM: x86: Get exit_reason as part of kvm_x86_ops.get_exit_info
KVM: x86: On emulation failure, convey the exit reason, etc. to userspace
KVM: x86: SGX must obey the KVM_INTERNAL_ERROR_EMULATION protocol
David Hildenbrand (8):
s390/gmap: validate VMA in __gmap_zap()
s390/gmap: don't unconditionally call pte_unmap_unlock() in __gmap_zap()
s390/mm: validate VMA in PGSTE manipulation functions
s390/mm: fix VMA and page table handling code in storage key handling functions
s390/uv: fully validate the VMA before calling follow_page()
s390/mm: no need for pte_alloc_map_lock() if we know the pmd is present
s390/mm: optimize set_guest_storage_key()
s390/mm: optimize reset_guest_reference_bit()
David Matlack (6):
KVM: x86/mmu: Fold rmap_recycle into rmap_add
KVM: x86/mmu: Pass the memslot around via struct kvm_page_fault
KVM: x86/mmu: Avoid memslot lookup in page_fault_handle_page_track
KVM: x86/mmu: Avoid memslot lookup in rmap_add
KVM: x86/mmu: Avoid memslot lookup in make_spte and mmu_try_to_unsync_pages
KVM: x86/mmu: Rename slot_handle_leaf to slot_handle_level_4k
David Stevens (3):
KVM: x86: add config for non-kvm users of page tracking
KVM: x86: only allocate gfn_track when necessary
KVM: cleanup allocation of rmaps and page tracking data
Eric Farman (2):
KVM: s390: Simplify SIGP Set Arch handling
KVM: s390: Add a routine for setting userspace CPU state
Fuad Tabba (8):
KVM: arm64: Pass struct kvm to per-EC handlers
KVM: arm64: Add missing field descriptor for MDCR_EL2
KVM: arm64: Simplify masking out MTE in feature id reg
KVM: arm64: Add handlers for protected VM System Registers
KVM: arm64: Initialize trap registers for protected VMs
KVM: arm64: Move sanitized copies of CPU features
KVM: arm64: Trap access to pVM restricted features
KVM: arm64: Handle protected guests at 32 bits
Janis Schoetterl-Glausch (1):
KVM: s390: Fix handle_sske page fault handling
Jia He (2):
KVM: arm64: vgic: Add memcg accounting to vgic allocations
KVM: arm64: Add memcg accounting to KVM allocations
Jim Mattson (2):
kvm: x86: Remove stale declaration of kvm_no_apic_vcpu
KVM: selftests: Fix nested SVM tests when built with clang
Juergen Gross (3):
Revert "x86/kvm: fix vcpu-id indexed array sizes"
kvm: rename KVM_MAX_VCPU_ID to KVM_MAX_VCPU_IDS
kvm: use kvfree() in kvm_arch_free_vm()
Junaid Shahid (1):
kvm: x86: mmu: Make NX huge page recovery period configurable
Krish Sadhukhan (1):
nSVM: Check for reserved encodings of TLB_CONTROL in nested VMCB
Lai Jiangshan (14):
KVM: X86: Don't flush current tlb on shadow page modification
KVM: X86: Remove kvm_mmu_flush_or_zap()
KVM: X86: Change kvm_sync_page() to return true when remote flush is needed
KVM: X86: Zap the invalid list after remote tlb flushing
KVM: X86: Remove FNAME(update_pte)
KVM: X86: Don't unsync pagetables when speculative
KVM: X86: Don't check unsync if the original spte is writible
KVM: X86: Move PTE present check from loop body to __shadow_walk_next()
KVM: X86: Don't reset mmu context when X86_CR4_PCIDE 1->0
KVM: X86: Don't reset mmu context when toggling X86_CR4_PGE
KVM: X86: Fix tlb flush for tdp in kvm_invalidate_pcid()
KVM: X86: Cache CR3 in prev_roots when PCID is disabled
KVM: X86: pair smp_wmb() of mmu_try_to_unsync_pages() with smp_rmb()
KVM: X86: Don't unload MMU in kvm_vcpu_flush_tlb_guest()
Longpeng(Mike) (1):
kvm: irqfd: avoid update unmodified entries of the routing
Lukas Bulwahn (1):
riscv: do not select non-existing config ANON_INODES
Marc Zyngier (33):
KVM: arm64: Turn __KVM_HOST_SMCCC_FUNC_* into an enum (mostly)
Merge branch kvm-arm64/pkvm/restrict-hypercalls into kvmarm-master/next
Merge branch kvm-arm64/vgic-ipa-checks into kvmarm-master/next
KVM: arm64: Allow KVM to be disabled from the command line
Merge branch kvm-arm64/misc-5.16 into kvmarm-master/next
Merge branch kvm-arm64/raz-sysregs into kvmarm-master/next
KVM: arm64: Move __get_fault_info() and co into their own include file
KVM: arm64: Don't include switch.h into nvhe/kvm-main.c
KVM: arm64: Move early handlers to per-EC handlers
Merge branch kvm-arm64/pkvm/restrict-hypercalls into kvmarm-master/next
KVM: arm64: Fix reporting of endianess when the access originates at EL0
Merge branch kvm-arm64/misc-5.16 into kvmarm-master/next
KVM: arm64: Force ID_AA64PFR0_EL1.GIC=1 when exposing a virtual GICv3
KVM: arm64: vgic-v3: Work around GICv3 locally generated SErrors
KVM: arm64: vgic-v3: Reduce common group trapping to ICV_DIR_EL1 when possible
KVM: arm64: vgic-v3: Don't advertise ICC_CTLR_EL1.SEIS
KVM: arm64: vgic-v3: Align emulated cpuif LPI state machine with the pseudocode
Merge branch kvm-arm64/vgic-fixes-5.16 into kvmarm-master/next
Merge branch kvm-arm64/selftest/timer into kvmarm-master/next
Merge branch kvm-arm64/memory-accounting into kvmarm-master/next
KVM: arm64: Fix early exit ptrauth handling
KVM: arm64: pkvm: Use a single function to expose all id-regs
KVM: arm64: pkvm: Make the ERR/ERX*_EL1 registers RAZ/WI
KVM: arm64: pkvm: Drop AArch32-specific registers
KVM: arm64: pkvm: Drop sysregs that should never be routed to the host
KVM: arm64: pkvm: Handle GICv3 traps as required
KVM: arm64: pkvm: Preserve pending SError on exit from AArch32
KVM: arm64: pkvm: Consolidate include files
KVM: arm64: pkvm: Move kvm_handle_pvm_restricted around
KVM: arm64: pkvm: Pass vpcu instead of kvm to kvm_get_exit_handler_array()
KVM: arm64: pkvm: Give priority to standard traps over pvm handling
Merge branch kvm-arm64/pkvm/fixed-features into kvmarm-master/next
Merge branch kvm/selftests/memslot into kvmarm-master/next
Maxim Levitsky (4):
KVM: x86: nSVM: don't copy pause related settings
KVM: x86: SVM: add module param to control LBR virtualization
KVM: x86: SVM: add module param to control TSC scaling
KVM: x86: nSVM: implement nested TSC scaling
Michael Roth (1):
KVM: selftests: set CPUID before setting sregs in vcpu creation
Oliver Upton (9):
KVM: x86: Fix potential race in KVM_GET_CLOCK
KVM: x86: Report host tsc and realtime values in KVM_GET_CLOCK
KVM: x86: Refactor tsc synchronization code
KVM: x86: Expose TSC offset controls to userspace
tools: arch: x86: pull in pvclock headers
selftests: KVM: Add test for KVM_{GET,SET}_CLOCK
selftests: KVM: Fix kvm device helper ioctl assertions
selftests: KVM: Add helpers for vCPU device attributes
selftests: KVM: Introduce system counter offset test
Paolo Bonzini (36):
KVM: x86: SVM: don't set VMLOAD/VMSAVE intercepts on vCPU reset
kvm: x86: abstract locking around pvclock_update_vm_gtod_copy
KVM: x86: extract KVM_GET_CLOCK/KVM_SET_CLOCK to separate functions
KVM: MMU: pass unadulterated gpa to direct_page_fault
KVM: MMU: Introduce struct kvm_page_fault
KVM: MMU: change mmu->page_fault() arguments to kvm_page_fault
KVM: MMU: change direct_page_fault() arguments to kvm_page_fault
KVM: MMU: change page_fault_handle_page_track() arguments to kvm_page_fault
KVM: MMU: change kvm_faultin_pfn() arguments to kvm_page_fault
KVM: MMU: change handle_abnormal_pfn() arguments to kvm_page_fault
KVM: MMU: change __direct_map() arguments to kvm_page_fault
KVM: MMU: change FNAME(fetch)() arguments to kvm_page_fault
KVM: MMU: change kvm_tdp_mmu_map() arguments to kvm_page_fault
KVM: MMU: change tdp_mmu_map_handle_target_level() arguments to kvm_page_fault
KVM: MMU: change fast_page_fault() arguments to kvm_page_fault
KVM: MMU: change kvm_mmu_hugepage_adjust() arguments to kvm_page_fault
KVM: MMU: change disallowed_hugepage_adjust() arguments to kvm_page_fault
KVM: MMU: change tracepoints arguments to kvm_page_fault
KVM: MMU: mark page dirty in make_spte
KVM: MMU: unify tdp_mmu_map_set_spte_atomic and tdp_mmu_set_spte_atomic_no_dirty_log
KVM: MMU: inline set_spte in mmu_set_spte
KVM: MMU: inline set_spte in FNAME(sync_page)
KVM: MMU: clean up make_spte return value
KVM: MMU: remove unnecessary argument to mmu_set_spte
KVM: MMU: set ad_disabled in TDP MMU role
KVM: MMU: pass kvm_mmu_page struct to make_spte
KVM: MMU: pass struct kvm_page_fault to mmu_set_spte
Merge tag 'kvm-riscv-5.16-1' of git://github.com/kvm-riscv/linux into HEAD
Merge commit 'kvm-pagedata-alloc-fixes' into HEAD
KVM: x86: avoid warning with -Wbitwise-instead-of-logical
kvm: x86: protect masterclock with a seqcount
KVM: x86/mmu: clean up prefetch/prefault/speculative naming
Merge branch 'kvm-pvclock-raw-spinlock' into HEAD
Merge tag 'kvmarm-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
Merge tag 'kvm-s390-next-5.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
Merge tag 'kvm-riscv-5.16-2' of https://github.com/kvm-riscv/linux into HEAD
Raghavendra Rao Ananta (14):
KVM: arm64: selftests: Add MMIO readl/writel support
tools: arm64: Import sysreg.h
KVM: arm64: selftests: Introduce ARM64_SYS_KVM_REG
KVM: arm64: selftests: Add support for cpu_relax
KVM: arm64: selftests: Add basic support for arch_timers
KVM: arm64: selftests: Add basic support to generate delays
KVM: arm64: selftests: Add support to disable and enable local IRQs
KVM: arm64: selftests: Maintain consistency for vcpuid type
KVM: arm64: selftests: Add guest support to get the vcpuid
KVM: arm64: selftests: Add light-weight spinlock support
KVM: arm64: selftests: Add basic GICv3 support
KVM: arm64: selftests: Add host support for vGIC
KVM: arm64: selftests: Add arch_timer test
KVM: arm64: selftests: arch_timer: Support vCPU migration
Ricardo Koller (13):
kvm: arm64: vgic: Introduce vgic_check_iorange
KVM: arm64: vgic-v3: Check redist region is not above the VM IPA size
KVM: arm64: vgic-v2: Check cpu interface region is not above the VM IPA size
KVM: arm64: vgic-v3: Check ITS region is not above the VM IPA size
KVM: arm64: vgic: Drop vgic_check_ioaddr()
KVM: arm64: selftests: Make vgic_init gic version agnostic
KVM: arm64: selftests: Make vgic_init/vm_gic_create version agnostic
KVM: arm64: selftests: Add some tests for GICv2 in vgic_init
KVM: arm64: selftests: Add tests for GIC redist/cpuif partially above IPA range
KVM: arm64: selftests: Add test for legacy GICv3 REDIST base partially above IPA range
KVM: arm64: selftests: Add init ITS device test
KVM: selftests: Make memslot_perf_test arch independent
KVM: selftests: Build the memslot tests for arm64
Sean Christopherson (23):
KVM: x86: Subsume nested GPA read helper into load_pdptrs()
KVM: x86: Simplify retrieving the page offset when loading PDTPRs
KVM: x86: Do not mark all registers as avail/dirty during RESET/INIT
KVM: x86: Remove defunct setting of CR0.ET for guests during vCPU create
KVM: x86: Remove defunct setting of XCR0 for guest during vCPU create
KVM: x86: Fold fx_init() into kvm_arch_vcpu_create()
KVM: VMX: Drop explicit zeroing of MSR guest values at vCPU creation
KVM: VMX: Move RESET emulation to vmx_vcpu_reset()
KVM: SVM: Move RESET emulation to svm_vcpu_reset()
KVM: x86: WARN on non-zero CRs at RESET to detect improper initalization
KVM: x86: Manually retrieve CPUID.0x1 when getting FMS for RESET/INIT
KVM: x86/mmu: Complete prefetch for trailing SPTEs for direct, legacy MMU
KVM: x86/mmu: Verify shadow walk doesn't terminate early in page faults
KVM: arm64: Unconditionally include generic KVM's Kconfig
KVM: arm64: Depend on HAVE_KVM instead of OF
KVM: x86: Add vendor name to kvm_x86_ops, use it for error messages
KVM: x86/mmu: Drop a redundant, broken remote TLB flush
KVM: x86/mmu: Drop a redundant remote TLB flush in kvm_zap_gfn_range()
KVM: x86/mmu: Extract zapping of rmaps for gfn range to separate helper
KVM: x86: Move SVM's APICv sanity check to common x86
KVM: x86: Use rw_semaphore for APICv lock to allow vCPU parallelism
x86/irq: Ensure PI wakeup handler is unregistered before module unload
KVM: VMX: Unregister posted interrupt wakeup handler on hardware unsetup
Thomas Huth (1):
KVM: selftests: Fix kvm_vm_free() in cr4_cpuid_sync and vmx_tsc_adjust tests
Vitaly Kuznetsov (6):
KVM: nVMX: Reset vmxon_ptr upon VMXOFF emulation.
KVM: x86: hyper-v: Avoid calling kvm_make_vcpus_request_mask() with vcpu_mask==NULL
KVM: Optimize kvm_make_vcpus_request_mask() a bit
KVM: Drop 'except' parameter from kvm_make_vcpus_request_mask()
KVM: Pre-allocate cpumasks for kvm_make_all_cpus_request_except()
KVM: Make kvm_make_vcpus_request_mask() use pre-allocated cpu_kick_mask
Wanpeng Li (2):
KVM: vPMU: Fill get_msr MSR_CORE_PERF_GLOBAL_OVF_CTRL w/ 0
KVM: emulate: Comment on difference between RDPMC implementation and manual
Will Deacon (5):
arm64: Prevent kexec and hibernation if is_protected_kvm_enabled()
KVM: arm64: Reject stub hypercalls after pKVM has been initialised
KVM: arm64: Propagate errors from __pkvm_prot_finalize hypercall
KVM: arm64: Prevent re-finalisation of pKVM for a given CPU
KVM: arm64: Disable privileged hypercalls after pKVM finalisation
Xiaoyao Li (4):
KVM: VMX: Restore host's MSR_IA32_RTIT_CTL when it's not zero
KVM: VMX: Use precomputed vmx->pt_desc.addr_range
KVM: VMX: Rename pt_desc.addr_range to pt_desc.num_address_ranges
KVM: VMX: RTIT_CTL_BRANCH_EN has no dependency on other CPUID bit
Yang Li (1):
KVM: use vma_pages() helper
Yu Zhang (1):
KVM: nVMX: Use INVALID_GPA for pointers used in nVMX.
ran jianping (1):
RISC-V: KVM: remove unneeded semicolon
Documentation/admin-guide/kernel-parameters.txt | 15 +-
Documentation/virt/kvm/api.rst | 241 +++-
Documentation/virt/kvm/devices/vcpu.rst | 70 ++
Documentation/virt/kvm/devices/xics.rst | 2 +-
Documentation/virt/kvm/devices/xive.rst | 2 +-
MAINTAINERS | 12 +
arch/arm64/Kconfig | 1 +
arch/arm64/include/asm/kvm_arm.h | 1 +
arch/arm64/include/asm/kvm_asm.h | 48 +-
arch/arm64/include/asm/kvm_emulate.h | 5 +-
arch/arm64/include/asm/kvm_host.h | 4 +-
arch/arm64/include/asm/kvm_hyp.h | 5 +
arch/arm64/include/asm/sysreg.h | 3 +
arch/arm64/kernel/smp.c | 3 +-
arch/arm64/kvm/Kconfig | 10 +-
arch/arm64/kvm/arm.c | 102 +-
arch/arm64/kvm/hyp/include/hyp/fault.h | 75 ++
arch/arm64/kvm/hyp/include/hyp/switch.h | 235 ++--
arch/arm64/kvm/hyp/include/nvhe/fixed_config.h | 200 +++
arch/arm64/kvm/hyp/include/nvhe/trap_handler.h | 2 +
arch/arm64/kvm/hyp/nvhe/Makefile | 2 +-
arch/arm64/kvm/hyp/nvhe/host.S | 26 +-
arch/arm64/kvm/hyp/nvhe/hyp-main.c | 48 +-
arch/arm64/kvm/hyp/nvhe/mem_protect.c | 11 +-
arch/arm64/kvm/hyp/nvhe/pkvm.c | 185 +++
arch/arm64/kvm/hyp/nvhe/setup.c | 3 +
arch/arm64/kvm/hyp/nvhe/switch.c | 99 ++
arch/arm64/kvm/hyp/nvhe/sys_regs.c | 487 ++++++++
arch/arm64/kvm/hyp/vgic-v3-sr.c | 22 +-
arch/arm64/kvm/hyp/vhe/switch.c | 16 +
arch/arm64/kvm/mmu.c | 2 +-
arch/arm64/kvm/pmu-emul.c | 2 +-
arch/arm64/kvm/reset.c | 2 +-
arch/arm64/kvm/sys_regs.c | 41 +-
arch/arm64/kvm/vgic/vgic-init.c | 2 +-
arch/arm64/kvm/vgic/vgic-irqfd.c | 2 +-
arch/arm64/kvm/vgic/vgic-its.c | 18 +-
arch/arm64/kvm/vgic/vgic-kvm-device.c | 25 +-
arch/arm64/kvm/vgic/vgic-mmio-v3.c | 8 +-
arch/arm64/kvm/vgic/vgic-v3.c | 27 +-
arch/arm64/kvm/vgic/vgic-v4.c | 2 +-
arch/arm64/kvm/vgic/vgic.h | 5 +-
arch/mips/kvm/mips.c | 2 +-
arch/powerpc/include/asm/kvm_book3s.h | 2 +-
arch/powerpc/include/asm/kvm_host.h | 4 +-
arch/powerpc/kvm/book3s_xive.c | 2 +-
arch/powerpc/kvm/powerpc.c | 2 +-
arch/riscv/Kconfig | 2 +
arch/riscv/Makefile | 1 +
arch/riscv/include/asm/csr.h | 87 ++
arch/riscv/include/asm/kvm_host.h | 264 ++++
arch/riscv/include/asm/kvm_types.h | 7 +
arch/riscv/include/asm/kvm_vcpu_fp.h | 59 +
arch/riscv/include/asm/kvm_vcpu_timer.h | 44 +
arch/riscv/include/uapi/asm/kvm.h | 128 ++
arch/riscv/kernel/asm-offsets.c | 156 +++
arch/riscv/kvm/Kconfig | 35 +
arch/riscv/kvm/Makefile | 26 +
arch/riscv/kvm/main.c | 118 ++
arch/riscv/kvm/mmu.c | 802 ++++++++++++
arch/riscv/kvm/tlb.S | 74 ++
arch/riscv/kvm/vcpu.c | 825 +++++++++++++
arch/riscv/kvm/vcpu_exit.c | 701 +++++++++++
arch/riscv/kvm/vcpu_fp.c | 167 +++
arch/riscv/kvm/vcpu_sbi.c | 185 +++
arch/riscv/kvm/vcpu_switch.S | 400 ++++++
arch/riscv/kvm/vcpu_timer.c | 225 ++++
arch/riscv/kvm/vm.c | 97 ++
arch/riscv/kvm/vmid.c | 120 ++
arch/s390/include/asm/pgtable.h | 9 +-
arch/s390/include/asm/uv.h | 15 +-
arch/s390/kernel/uv.c | 65 +-
arch/s390/kvm/intercept.c | 5 +
arch/s390/kvm/kvm-s390.c | 7 +-
arch/s390/kvm/kvm-s390.h | 9 +
arch/s390/kvm/priv.c | 2 +
arch/s390/kvm/pv.c | 21 +-
arch/s390/kvm/sigp.c | 14 +-
arch/s390/mm/gmap.c | 15 +-
arch/s390/mm/pgtable.c | 109 +-
arch/x86/include/asm/kvm_host.h | 48 +-
arch/x86/include/asm/kvm_page_track.h | 11 +-
arch/x86/include/uapi/asm/kvm.h | 4 +
arch/x86/kernel/irq.c | 4 +-
arch/x86/kvm/Kconfig | 3 +
arch/x86/kvm/cpuid.c | 10 +-
arch/x86/kvm/emulate.c | 5 +
arch/x86/kvm/hyperv.c | 22 +-
arch/x86/kvm/ioapic.c | 2 +-
arch/x86/kvm/ioapic.h | 4 +-
arch/x86/kvm/mmu.h | 114 +-
arch/x86/kvm/mmu/mmu.c | 702 ++++++-----
arch/x86/kvm/mmu/mmu_internal.h | 21 +-
arch/x86/kvm/mmu/mmutrace.h | 18 +-
arch/x86/kvm/mmu/page_track.c | 49 +-
arch/x86/kvm/mmu/paging_tmpl.h | 168 ++-
arch/x86/kvm/mmu/spte.c | 34 +-
arch/x86/kvm/mmu/spte.h | 21 +-
arch/x86/kvm/mmu/tdp_mmu.c | 119 +-
arch/x86/kvm/mmu/tdp_mmu.h | 6 +-
arch/x86/kvm/svm/nested.c | 52 +-
arch/x86/kvm/svm/sev.c | 6 +-
arch/x86/kvm/svm/svm.c | 168 ++-
arch/x86/kvm/svm/svm.h | 9 +-
arch/x86/kvm/trace.h | 9 +-
arch/x86/kvm/vmx/nested.c | 63 +-
arch/x86/kvm/vmx/pmu_intel.c | 6 +-
arch/x86/kvm/vmx/sgx.c | 16 +-
arch/x86/kvm/vmx/vmx.c | 136 +-
arch/x86/kvm/vmx/vmx.h | 2 +-
arch/x86/kvm/x86.c | 800 +++++++-----
arch/x86/kvm/x86.h | 2 -
drivers/clocksource/timer-riscv.c | 9 +
drivers/gpu/drm/i915/Kconfig | 1 +
include/clocksource/timer-riscv.h | 16 +
include/linux/kvm_host.h | 18 +-
include/uapi/linux/kvm.h | 29 +-
tools/arch/arm64/include/asm/sysreg.h | 1296 ++++++++++++++++++++
tools/arch/x86/include/asm/pvclock-abi.h | 48 +
tools/arch/x86/include/asm/pvclock.h | 103 ++
tools/testing/selftests/kvm/.gitignore | 3 +
tools/testing/selftests/kvm/Makefile | 7 +-
tools/testing/selftests/kvm/aarch64/arch_timer.c | 479 ++++++++
.../selftests/kvm/aarch64/debug-exceptions.c | 30 +-
.../selftests/kvm/aarch64/psci_cpu_on_test.c | 2 +-
tools/testing/selftests/kvm/aarch64/vgic_init.c | 369 ++++--
.../selftests/kvm/include/aarch64/arch_timer.h | 142 +++
.../testing/selftests/kvm/include/aarch64/delay.h | 25 +
tools/testing/selftests/kvm/include/aarch64/gic.h | 21 +
.../selftests/kvm/include/aarch64/processor.h | 90 +-
.../selftests/kvm/include/aarch64/spinlock.h | 13 +
tools/testing/selftests/kvm/include/aarch64/vgic.h | 20 +
tools/testing/selftests/kvm/include/kvm_util.h | 13 +
tools/testing/selftests/kvm/kvm_create_max_vcpus.c | 2 +-
tools/testing/selftests/kvm/lib/aarch64/gic.c | 95 ++
.../selftests/kvm/lib/aarch64/gic_private.h | 21 +
tools/testing/selftests/kvm/lib/aarch64/gic_v3.c | 240 ++++
tools/testing/selftests/kvm/lib/aarch64/gic_v3.h | 70 ++
.../testing/selftests/kvm/lib/aarch64/processor.c | 24 +-
tools/testing/selftests/kvm/lib/aarch64/spinlock.c | 27 +
tools/testing/selftests/kvm/lib/aarch64/vgic.c | 70 ++
tools/testing/selftests/kvm/lib/kvm_util.c | 46 +-
tools/testing/selftests/kvm/lib/sparsebit.c | 2 +-
tools/testing/selftests/kvm/lib/x86_64/processor.c | 4 +-
tools/testing/selftests/kvm/lib/x86_64/svm.c | 14 +-
tools/testing/selftests/kvm/memslot_perf_test.c | 56 +-
.../selftests/kvm/system_counter_offset_test.c | 132 ++
.../selftests/kvm/x86_64/cr4_cpuid_sync_test.c | 3 +-
.../testing/selftests/kvm/x86_64/kvm_clock_test.c | 203 +++
.../selftests/kvm/x86_64/vmx_tsc_adjust_test.c | 2 +-
virt/kvm/eventfd.c | 15 +-
virt/kvm/kvm_main.c | 127 +-
152 files changed, 11646 insertions(+), 1752 deletions(-)
diff --cc arch/riscv/Kconfig
index c28b743eba57,f5fe8a7f0e24..000000000000
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@@ -566,3 -561,6 +566,5 @@@ menu "Power management options
source "kernel/power/Kconfig"
endmenu
+
+ source "arch/riscv/kvm/Kconfig"
-source "drivers/firmware/Kconfig"
diff --cc arch/x86/kvm/x86.c
index 2686f2edb47c,ac83d873d65b..000000000000
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@@ -10485,16 -10869,15 +10730,6 @@@ static int sync_regs(struct kvm_vcpu *v
return 0;
}
- static void fx_init(struct kvm_vcpu *vcpu)
-void kvm_free_guest_fpu(struct kvm_vcpu *vcpu)
--{
- /*
- * Ensure guest xcr0 is valid for loading
- */
- vcpu->arch.xcr0 = XFEATURE_MASK_FP;
-
- vcpu->arch.cr0 |= X86_CR0_ET;
- if (vcpu->arch.guest_fpu) {
- kmem_cache_free(x86_fpu_cache, vcpu->arch.guest_fpu);
- vcpu->arch.guest_fpu = NULL;
- }
--}
-EXPORT_SYMBOL_GPL(kvm_free_guest_fpu);
--
int kvm_arch_vcpu_precreate(struct kvm *kvm, unsigned int id)
{
if (kvm_check_tsc_unstable() && atomic_read(&kvm->online_vcpus) != 0)
@@@ -10551,13 -10934,24 +10786,11 @@@ int kvm_arch_vcpu_create(struct kvm_vcp
if (!alloc_emulate_ctxt(vcpu))
goto free_wbinvd_dirty_mask;
- vcpu->arch.user_fpu = kmem_cache_zalloc(x86_fpu_cache,
- GFP_KERNEL_ACCOUNT);
- if (!vcpu->arch.user_fpu) {
- pr_err("kvm: failed to allocate userspace's fpu\n");
- goto free_emulate_ctxt;
- }
-
- vcpu->arch.guest_fpu = kmem_cache_zalloc(x86_fpu_cache,
- GFP_KERNEL_ACCOUNT);
- if (!vcpu->arch.guest_fpu) {
+ if (!fpu_alloc_guest_fpstate(&vcpu->arch.guest_fpu)) {
pr_err("kvm: failed to allocate vcpu's fpu\n");
- goto free_user_fpu;
+ goto free_emulate_ctxt;
}
- fpstate_init(&vcpu->arch.guest_fpu->state);
- if (boot_cpu_has(X86_FEATURE_XSAVES))
- vcpu->arch.guest_fpu->state.xsave.header.xcomp_bv =
- host_xcr0 | XSTATE_COMPACTION_ENABLED;
- fx_init(vcpu);
-
vcpu->arch.maxphyaddr = cpuid_query_maxphyaddr(vcpu);
vcpu->arch.reserved_gpa_bits = kvm_vcpu_reserved_gpa_bits_raw(vcpu);
diff --cc arch/riscv/Kconfig
index c28b743eba57,f5fe8a7f0e24..000000000000
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@@ -566,3 -561,6 +566,5 @@@ menu "Power management options
source "kernel/power/Kconfig"
endmenu
+
+ source "arch/riscv/kvm/Kconfig"
-source "drivers/firmware/Kconfig"
diff --cc arch/x86/kvm/x86.c
index 2686f2edb47c,ac83d873d65b..000000000000
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@@ -10485,16 -10869,15 +10730,6 @@@ static int sync_regs(struct kvm_vcpu *v
return 0;
}
- static void fx_init(struct kvm_vcpu *vcpu)
-void kvm_free_guest_fpu(struct kvm_vcpu *vcpu)
--{
- /*
- * Ensure guest xcr0 is valid for loading
- */
- vcpu->arch.xcr0 = XFEATURE_MASK_FP;
-
- vcpu->arch.cr0 |= X86_CR0_ET;
- if (vcpu->arch.guest_fpu) {
- kmem_cache_free(x86_fpu_cache, vcpu->arch.guest_fpu);
- vcpu->arch.guest_fpu = NULL;
- }
--}
-EXPORT_SYMBOL_GPL(kvm_free_guest_fpu);
--
int kvm_arch_vcpu_precreate(struct kvm *kvm, unsigned int id)
{
if (kvm_check_tsc_unstable() && atomic_read(&kvm->online_vcpus) != 0)
@@@ -10551,13 -10934,24 +10786,11 @@@ int kvm_arch_vcpu_create(struct kvm_vcp
if (!alloc_emulate_ctxt(vcpu))
goto free_wbinvd_dirty_mask;
- vcpu->arch.user_fpu = kmem_cache_zalloc(x86_fpu_cache,
- GFP_KERNEL_ACCOUNT);
- if (!vcpu->arch.user_fpu) {
- pr_err("kvm: failed to allocate userspace's fpu\n");
- goto free_emulate_ctxt;
- }
-
- vcpu->arch.guest_fpu = kmem_cache_zalloc(x86_fpu_cache,
- GFP_KERNEL_ACCOUNT);
- if (!vcpu->arch.guest_fpu) {
+ if (!fpu_alloc_guest_fpstate(&vcpu->arch.guest_fpu)) {
pr_err("kvm: failed to allocate vcpu's fpu\n");
- goto free_user_fpu;
+ goto free_emulate_ctxt;
}
- fpstate_init(&vcpu->arch.guest_fpu->state);
- if (boot_cpu_has(X86_FEATURE_XSAVES))
- vcpu->arch.guest_fpu->state.xsave.header.xcomp_bv =
- host_xcr0 | XSTATE_COMPACTION_ENABLED;
- fx_init(vcpu);
-
vcpu->arch.maxphyaddr = cpuid_query_maxphyaddr(vcpu);
vcpu->arch.reserved_gpa_bits = kvm_vcpu_reserved_gpa_bits_raw(vcpu);
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [GIT PULL] First batch of KVM changes for Linux 5.16
2021-11-02 16:53 [GIT PULL] First batch of KVM changes for Linux 5.16 Paolo Bonzini
@ 2021-11-02 18:37 ` pr-tracker-bot
2021-11-08 13:48 ` Christian Borntraeger
1 sibling, 0 replies; 4+ messages in thread
From: pr-tracker-bot @ 2021-11-02 18:37 UTC (permalink / raw)
To: Paolo Bonzini; +Cc: torvalds, linux-kernel, kvm
The pull request you sent on Tue, 2 Nov 2021 12:53:31 -0400:
> https://git.kernel.org/pub/scm/virt/kvm/kvm.git tags/for-linus
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/d7e0a795bf37a13554c80cfc5ba97abedf53f391
Thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/prtracker.html
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [GIT PULL] First batch of KVM changes for Linux 5.16
2021-11-02 16:53 [GIT PULL] First batch of KVM changes for Linux 5.16 Paolo Bonzini
2021-11-02 18:37 ` pr-tracker-bot
@ 2021-11-08 13:48 ` Christian Borntraeger
2021-11-08 14:03 ` Paolo Bonzini
1 sibling, 1 reply; 4+ messages in thread
From: Christian Borntraeger @ 2021-11-08 13:48 UTC (permalink / raw)
To: Paolo Bonzini, torvalds; +Cc: linux-kernel, kvm
Am 02.11.21 um 17:53 schrieb Paolo Bonzini:
> Linus,
>
> The following changes since commit 8228c77d8b56e3f735baf71fefb1b548c23691a7:
>
> KVM: x86: switch pvclock_gtod_sync_lock to a raw spinlock (2021-10-25 08:14:38 -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 52cf891d8dbd7592261fa30f373410b97f22b76c:
>
> Merge tag 'kvm-riscv-5.16-2' of https://github.com/kvm-riscv/linux into HEAD (2021-11-02 09:15:31 -0400)
It seems that this was not yet merged, correct?
>
> ----------------------------------------------------------------
> ARM:
> * More progress on the protected VM front, now with the full
> fixed feature set as well as the limitation of some hypercalls
> after initialisation.
>
> * Cleanup of the RAZ/WI sysreg handling, which was pointlessly
> complicated
>
> * Fixes for the vgic placement in the IPA space, together with a
> bunch of selftests
>
> * More memcg accounting of the memory allocated on behalf of a guest
>
> * Timer and vgic selftests
>
> * Workarounds for the Apple M1 broken vgic implementation
>
> * KConfig cleanups
>
> * New kvmarm.mode=none option, for those who really dislike us
>
> RISC-V:
> * New KVM port.
>
> x86:
> * New API to control TSC offset from userspace
>
> * TSC scaling for nested hypervisors on SVM
>
> * Switch masterclock protection from raw_spin_lock to seqcount
>
> * Clean up function prototypes in the page fault code and avoid
> repeated memslot lookups
>
> * Convey the exit reason to userspace on emulation failure
>
> * Configure time between NX page recovery iterations
>
> * Expose Predictive Store Forwarding Disable CPUID leaf
>
> * Allocate page tracking data structures lazily (if the i915
> KVM-GT functionality is not compiled in)
>
> * Cleanups, fixes and optimizations for the shadow MMU code
>
> s390:
> * SIGP Fixes
>
> * initial preparations for lazy destroy of secure VMs
>
> * storage key improvements/fixes
>
> * Log the guest CPNC
>
> Starting from this release, KVM-PPC patches will come from
> Michael Ellerman's PPC tree.
>
> ----------------------------------------------------------------
> There is a trivial Kconfig conflict in arch/riscv, and a slightly
> less trivial conflict with Thomas's x86 FPU rework. The latter is
> due to fx_init going away in my tree (long before Thomas started his
> work, or I would have synchronized better). The conflict resolution
> is at the bottom of this email.
>
> Alexandru Elisei (4):
> KVM: arm64: Return early from read_id_reg() if register is RAZ
> KVM: arm64: Use get_raz_reg() for userspace reads of PMSWINC_EL0
> KVM: arm64: Replace get_raz_id_reg() with get_raz_reg()
> Documentation: admin-guide: Document side effects when pKVM is enabled
>
> Andrei Vagin (1):
> KVM: x86/mmu: kvm_faultin_pfn has to return false if pfh is returned
>
> Anup Patel (15):
> RISC-V: Add hypervisor extension related CSR defines
> RISC-V: Add initial skeletal KVM support
> RISC-V: KVM: Implement VCPU create, init and destroy functions
> RISC-V: KVM: Implement VCPU interrupts and requests handling
> RISC-V: KVM: Implement KVM_GET_ONE_REG/KVM_SET_ONE_REG ioctls
> RISC-V: KVM: Implement VCPU world-switch
> RISC-V: KVM: Handle MMIO exits for VCPU
> RISC-V: KVM: Handle WFI exits for VCPU
> RISC-V: KVM: Implement VMID allocator
> RISC-V: KVM: Implement stage2 page table programming
> RISC-V: KVM: Implement MMU notifiers
> RISC-V: KVM: Document RISC-V specific parts of KVM API
> RISC-V: KVM: Add MAINTAINERS entry
> RISC-V: KVM: Factor-out FP virtualization into separate sources
> RISC-V: KVM: Fix GPA passed to __kvm_riscv_hfence_gvma_xyz() functions
>
> Atish Patra (4):
> RISC-V: KVM: Add timer functionality
> RISC-V: KVM: FP lazy save/restore
> RISC-V: KVM: Implement ONE REG interface for FP registers
> RISC-V: KVM: Add SBI v0.1 support
>
> Babu Moger (1):
> KVM: x86: Expose Predictive Store Forwarding Disable
>
> Bixuan Cui (1):
> RISC-V: KVM: fix boolreturn.cocci warnings
>
> Claudio Imbrenda (5):
> KVM: s390: pv: add macros for UVC CC values
> KVM: s390: pv: avoid double free of sida page
> KVM: s390: pv: avoid stalls for kvm_s390_pv_init_vm
> KVM: s390: pv: avoid stalls when making pages secure
> KVM: s390: pv: properly handle page flags for protected guests
>
> Colin Ian King (1):
> kvm: selftests: Fix spelling mistake "missmatch" -> "mismatch"
>
> Collin Walling (1):
> KVM: s390: add debug statement for diag 318 CPNC data
>
> David Edmondson (4):
> KVM: x86: Clarify the kvm_run.emulation_failure structure layout
> KVM: x86: Get exit_reason as part of kvm_x86_ops.get_exit_info
> KVM: x86: On emulation failure, convey the exit reason, etc. to userspace
> KVM: x86: SGX must obey the KVM_INTERNAL_ERROR_EMULATION protocol
>
> David Hildenbrand (8):
> s390/gmap: validate VMA in __gmap_zap()
> s390/gmap: don't unconditionally call pte_unmap_unlock() in __gmap_zap()
> s390/mm: validate VMA in PGSTE manipulation functions
> s390/mm: fix VMA and page table handling code in storage key handling functions
> s390/uv: fully validate the VMA before calling follow_page()
> s390/mm: no need for pte_alloc_map_lock() if we know the pmd is present
> s390/mm: optimize set_guest_storage_key()
> s390/mm: optimize reset_guest_reference_bit()
>
> David Matlack (6):
> KVM: x86/mmu: Fold rmap_recycle into rmap_add
> KVM: x86/mmu: Pass the memslot around via struct kvm_page_fault
> KVM: x86/mmu: Avoid memslot lookup in page_fault_handle_page_track
> KVM: x86/mmu: Avoid memslot lookup in rmap_add
> KVM: x86/mmu: Avoid memslot lookup in make_spte and mmu_try_to_unsync_pages
> KVM: x86/mmu: Rename slot_handle_leaf to slot_handle_level_4k
>
> David Stevens (3):
> KVM: x86: add config for non-kvm users of page tracking
> KVM: x86: only allocate gfn_track when necessary
> KVM: cleanup allocation of rmaps and page tracking data
>
> Eric Farman (2):
> KVM: s390: Simplify SIGP Set Arch handling
> KVM: s390: Add a routine for setting userspace CPU state
>
> Fuad Tabba (8):
> KVM: arm64: Pass struct kvm to per-EC handlers
> KVM: arm64: Add missing field descriptor for MDCR_EL2
> KVM: arm64: Simplify masking out MTE in feature id reg
> KVM: arm64: Add handlers for protected VM System Registers
> KVM: arm64: Initialize trap registers for protected VMs
> KVM: arm64: Move sanitized copies of CPU features
> KVM: arm64: Trap access to pVM restricted features
> KVM: arm64: Handle protected guests at 32 bits
>
> Janis Schoetterl-Glausch (1):
> KVM: s390: Fix handle_sske page fault handling
>
> Jia He (2):
> KVM: arm64: vgic: Add memcg accounting to vgic allocations
> KVM: arm64: Add memcg accounting to KVM allocations
>
> Jim Mattson (2):
> kvm: x86: Remove stale declaration of kvm_no_apic_vcpu
> KVM: selftests: Fix nested SVM tests when built with clang
>
> Juergen Gross (3):
> Revert "x86/kvm: fix vcpu-id indexed array sizes"
> kvm: rename KVM_MAX_VCPU_ID to KVM_MAX_VCPU_IDS
> kvm: use kvfree() in kvm_arch_free_vm()
>
> Junaid Shahid (1):
> kvm: x86: mmu: Make NX huge page recovery period configurable
>
> Krish Sadhukhan (1):
> nSVM: Check for reserved encodings of TLB_CONTROL in nested VMCB
>
> Lai Jiangshan (14):
> KVM: X86: Don't flush current tlb on shadow page modification
> KVM: X86: Remove kvm_mmu_flush_or_zap()
> KVM: X86: Change kvm_sync_page() to return true when remote flush is needed
> KVM: X86: Zap the invalid list after remote tlb flushing
> KVM: X86: Remove FNAME(update_pte)
> KVM: X86: Don't unsync pagetables when speculative
> KVM: X86: Don't check unsync if the original spte is writible
> KVM: X86: Move PTE present check from loop body to __shadow_walk_next()
> KVM: X86: Don't reset mmu context when X86_CR4_PCIDE 1->0
> KVM: X86: Don't reset mmu context when toggling X86_CR4_PGE
> KVM: X86: Fix tlb flush for tdp in kvm_invalidate_pcid()
> KVM: X86: Cache CR3 in prev_roots when PCID is disabled
> KVM: X86: pair smp_wmb() of mmu_try_to_unsync_pages() with smp_rmb()
> KVM: X86: Don't unload MMU in kvm_vcpu_flush_tlb_guest()
>
> Longpeng(Mike) (1):
> kvm: irqfd: avoid update unmodified entries of the routing
>
> Lukas Bulwahn (1):
> riscv: do not select non-existing config ANON_INODES
>
> Marc Zyngier (33):
> KVM: arm64: Turn __KVM_HOST_SMCCC_FUNC_* into an enum (mostly)
> Merge branch kvm-arm64/pkvm/restrict-hypercalls into kvmarm-master/next
> Merge branch kvm-arm64/vgic-ipa-checks into kvmarm-master/next
> KVM: arm64: Allow KVM to be disabled from the command line
> Merge branch kvm-arm64/misc-5.16 into kvmarm-master/next
> Merge branch kvm-arm64/raz-sysregs into kvmarm-master/next
> KVM: arm64: Move __get_fault_info() and co into their own include file
> KVM: arm64: Don't include switch.h into nvhe/kvm-main.c
> KVM: arm64: Move early handlers to per-EC handlers
> Merge branch kvm-arm64/pkvm/restrict-hypercalls into kvmarm-master/next
> KVM: arm64: Fix reporting of endianess when the access originates at EL0
> Merge branch kvm-arm64/misc-5.16 into kvmarm-master/next
> KVM: arm64: Force ID_AA64PFR0_EL1.GIC=1 when exposing a virtual GICv3
> KVM: arm64: vgic-v3: Work around GICv3 locally generated SErrors
> KVM: arm64: vgic-v3: Reduce common group trapping to ICV_DIR_EL1 when possible
> KVM: arm64: vgic-v3: Don't advertise ICC_CTLR_EL1.SEIS
> KVM: arm64: vgic-v3: Align emulated cpuif LPI state machine with the pseudocode
> Merge branch kvm-arm64/vgic-fixes-5.16 into kvmarm-master/next
> Merge branch kvm-arm64/selftest/timer into kvmarm-master/next
> Merge branch kvm-arm64/memory-accounting into kvmarm-master/next
> KVM: arm64: Fix early exit ptrauth handling
> KVM: arm64: pkvm: Use a single function to expose all id-regs
> KVM: arm64: pkvm: Make the ERR/ERX*_EL1 registers RAZ/WI
> KVM: arm64: pkvm: Drop AArch32-specific registers
> KVM: arm64: pkvm: Drop sysregs that should never be routed to the host
> KVM: arm64: pkvm: Handle GICv3 traps as required
> KVM: arm64: pkvm: Preserve pending SError on exit from AArch32
> KVM: arm64: pkvm: Consolidate include files
> KVM: arm64: pkvm: Move kvm_handle_pvm_restricted around
> KVM: arm64: pkvm: Pass vpcu instead of kvm to kvm_get_exit_handler_array()
> KVM: arm64: pkvm: Give priority to standard traps over pvm handling
> Merge branch kvm-arm64/pkvm/fixed-features into kvmarm-master/next
> Merge branch kvm/selftests/memslot into kvmarm-master/next
>
> Maxim Levitsky (4):
> KVM: x86: nSVM: don't copy pause related settings
> KVM: x86: SVM: add module param to control LBR virtualization
> KVM: x86: SVM: add module param to control TSC scaling
> KVM: x86: nSVM: implement nested TSC scaling
>
> Michael Roth (1):
> KVM: selftests: set CPUID before setting sregs in vcpu creation
>
> Oliver Upton (9):
> KVM: x86: Fix potential race in KVM_GET_CLOCK
> KVM: x86: Report host tsc and realtime values in KVM_GET_CLOCK
> KVM: x86: Refactor tsc synchronization code
> KVM: x86: Expose TSC offset controls to userspace
> tools: arch: x86: pull in pvclock headers
> selftests: KVM: Add test for KVM_{GET,SET}_CLOCK
> selftests: KVM: Fix kvm device helper ioctl assertions
> selftests: KVM: Add helpers for vCPU device attributes
> selftests: KVM: Introduce system counter offset test
>
> Paolo Bonzini (36):
> KVM: x86: SVM: don't set VMLOAD/VMSAVE intercepts on vCPU reset
> kvm: x86: abstract locking around pvclock_update_vm_gtod_copy
> KVM: x86: extract KVM_GET_CLOCK/KVM_SET_CLOCK to separate functions
> KVM: MMU: pass unadulterated gpa to direct_page_fault
> KVM: MMU: Introduce struct kvm_page_fault
> KVM: MMU: change mmu->page_fault() arguments to kvm_page_fault
> KVM: MMU: change direct_page_fault() arguments to kvm_page_fault
> KVM: MMU: change page_fault_handle_page_track() arguments to kvm_page_fault
> KVM: MMU: change kvm_faultin_pfn() arguments to kvm_page_fault
> KVM: MMU: change handle_abnormal_pfn() arguments to kvm_page_fault
> KVM: MMU: change __direct_map() arguments to kvm_page_fault
> KVM: MMU: change FNAME(fetch)() arguments to kvm_page_fault
> KVM: MMU: change kvm_tdp_mmu_map() arguments to kvm_page_fault
> KVM: MMU: change tdp_mmu_map_handle_target_level() arguments to kvm_page_fault
> KVM: MMU: change fast_page_fault() arguments to kvm_page_fault
> KVM: MMU: change kvm_mmu_hugepage_adjust() arguments to kvm_page_fault
> KVM: MMU: change disallowed_hugepage_adjust() arguments to kvm_page_fault
> KVM: MMU: change tracepoints arguments to kvm_page_fault
> KVM: MMU: mark page dirty in make_spte
> KVM: MMU: unify tdp_mmu_map_set_spte_atomic and tdp_mmu_set_spte_atomic_no_dirty_log
> KVM: MMU: inline set_spte in mmu_set_spte
> KVM: MMU: inline set_spte in FNAME(sync_page)
> KVM: MMU: clean up make_spte return value
> KVM: MMU: remove unnecessary argument to mmu_set_spte
> KVM: MMU: set ad_disabled in TDP MMU role
> KVM: MMU: pass kvm_mmu_page struct to make_spte
> KVM: MMU: pass struct kvm_page_fault to mmu_set_spte
> Merge tag 'kvm-riscv-5.16-1' of git://github.com/kvm-riscv/linux into HEAD
> Merge commit 'kvm-pagedata-alloc-fixes' into HEAD
> KVM: x86: avoid warning with -Wbitwise-instead-of-logical
> kvm: x86: protect masterclock with a seqcount
> KVM: x86/mmu: clean up prefetch/prefault/speculative naming
> Merge branch 'kvm-pvclock-raw-spinlock' into HEAD
> Merge tag 'kvmarm-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
> Merge tag 'kvm-s390-next-5.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
> Merge tag 'kvm-riscv-5.16-2' of https://github.com/kvm-riscv/linux into HEAD
>
> Raghavendra Rao Ananta (14):
> KVM: arm64: selftests: Add MMIO readl/writel support
> tools: arm64: Import sysreg.h
> KVM: arm64: selftests: Introduce ARM64_SYS_KVM_REG
> KVM: arm64: selftests: Add support for cpu_relax
> KVM: arm64: selftests: Add basic support for arch_timers
> KVM: arm64: selftests: Add basic support to generate delays
> KVM: arm64: selftests: Add support to disable and enable local IRQs
> KVM: arm64: selftests: Maintain consistency for vcpuid type
> KVM: arm64: selftests: Add guest support to get the vcpuid
> KVM: arm64: selftests: Add light-weight spinlock support
> KVM: arm64: selftests: Add basic GICv3 support
> KVM: arm64: selftests: Add host support for vGIC
> KVM: arm64: selftests: Add arch_timer test
> KVM: arm64: selftests: arch_timer: Support vCPU migration
>
> Ricardo Koller (13):
> kvm: arm64: vgic: Introduce vgic_check_iorange
> KVM: arm64: vgic-v3: Check redist region is not above the VM IPA size
> KVM: arm64: vgic-v2: Check cpu interface region is not above the VM IPA size
> KVM: arm64: vgic-v3: Check ITS region is not above the VM IPA size
> KVM: arm64: vgic: Drop vgic_check_ioaddr()
> KVM: arm64: selftests: Make vgic_init gic version agnostic
> KVM: arm64: selftests: Make vgic_init/vm_gic_create version agnostic
> KVM: arm64: selftests: Add some tests for GICv2 in vgic_init
> KVM: arm64: selftests: Add tests for GIC redist/cpuif partially above IPA range
> KVM: arm64: selftests: Add test for legacy GICv3 REDIST base partially above IPA range
> KVM: arm64: selftests: Add init ITS device test
> KVM: selftests: Make memslot_perf_test arch independent
> KVM: selftests: Build the memslot tests for arm64
>
> Sean Christopherson (23):
> KVM: x86: Subsume nested GPA read helper into load_pdptrs()
> KVM: x86: Simplify retrieving the page offset when loading PDTPRs
> KVM: x86: Do not mark all registers as avail/dirty during RESET/INIT
> KVM: x86: Remove defunct setting of CR0.ET for guests during vCPU create
> KVM: x86: Remove defunct setting of XCR0 for guest during vCPU create
> KVM: x86: Fold fx_init() into kvm_arch_vcpu_create()
> KVM: VMX: Drop explicit zeroing of MSR guest values at vCPU creation
> KVM: VMX: Move RESET emulation to vmx_vcpu_reset()
> KVM: SVM: Move RESET emulation to svm_vcpu_reset()
> KVM: x86: WARN on non-zero CRs at RESET to detect improper initalization
> KVM: x86: Manually retrieve CPUID.0x1 when getting FMS for RESET/INIT
> KVM: x86/mmu: Complete prefetch for trailing SPTEs for direct, legacy MMU
> KVM: x86/mmu: Verify shadow walk doesn't terminate early in page faults
> KVM: arm64: Unconditionally include generic KVM's Kconfig
> KVM: arm64: Depend on HAVE_KVM instead of OF
> KVM: x86: Add vendor name to kvm_x86_ops, use it for error messages
> KVM: x86/mmu: Drop a redundant, broken remote TLB flush
> KVM: x86/mmu: Drop a redundant remote TLB flush in kvm_zap_gfn_range()
> KVM: x86/mmu: Extract zapping of rmaps for gfn range to separate helper
> KVM: x86: Move SVM's APICv sanity check to common x86
> KVM: x86: Use rw_semaphore for APICv lock to allow vCPU parallelism
> x86/irq: Ensure PI wakeup handler is unregistered before module unload
> KVM: VMX: Unregister posted interrupt wakeup handler on hardware unsetup
>
> Thomas Huth (1):
> KVM: selftests: Fix kvm_vm_free() in cr4_cpuid_sync and vmx_tsc_adjust tests
>
> Vitaly Kuznetsov (6):
> KVM: nVMX: Reset vmxon_ptr upon VMXOFF emulation.
> KVM: x86: hyper-v: Avoid calling kvm_make_vcpus_request_mask() with vcpu_mask==NULL
> KVM: Optimize kvm_make_vcpus_request_mask() a bit
> KVM: Drop 'except' parameter from kvm_make_vcpus_request_mask()
> KVM: Pre-allocate cpumasks for kvm_make_all_cpus_request_except()
> KVM: Make kvm_make_vcpus_request_mask() use pre-allocated cpu_kick_mask
>
> Wanpeng Li (2):
> KVM: vPMU: Fill get_msr MSR_CORE_PERF_GLOBAL_OVF_CTRL w/ 0
> KVM: emulate: Comment on difference between RDPMC implementation and manual
>
> Will Deacon (5):
> arm64: Prevent kexec and hibernation if is_protected_kvm_enabled()
> KVM: arm64: Reject stub hypercalls after pKVM has been initialised
> KVM: arm64: Propagate errors from __pkvm_prot_finalize hypercall
> KVM: arm64: Prevent re-finalisation of pKVM for a given CPU
> KVM: arm64: Disable privileged hypercalls after pKVM finalisation
>
> Xiaoyao Li (4):
> KVM: VMX: Restore host's MSR_IA32_RTIT_CTL when it's not zero
> KVM: VMX: Use precomputed vmx->pt_desc.addr_range
> KVM: VMX: Rename pt_desc.addr_range to pt_desc.num_address_ranges
> KVM: VMX: RTIT_CTL_BRANCH_EN has no dependency on other CPUID bit
>
> Yang Li (1):
> KVM: use vma_pages() helper
>
> Yu Zhang (1):
> KVM: nVMX: Use INVALID_GPA for pointers used in nVMX.
>
> ran jianping (1):
> RISC-V: KVM: remove unneeded semicolon
>
> Documentation/admin-guide/kernel-parameters.txt | 15 +-
> Documentation/virt/kvm/api.rst | 241 +++-
> Documentation/virt/kvm/devices/vcpu.rst | 70 ++
> Documentation/virt/kvm/devices/xics.rst | 2 +-
> Documentation/virt/kvm/devices/xive.rst | 2 +-
> MAINTAINERS | 12 +
> arch/arm64/Kconfig | 1 +
> arch/arm64/include/asm/kvm_arm.h | 1 +
> arch/arm64/include/asm/kvm_asm.h | 48 +-
> arch/arm64/include/asm/kvm_emulate.h | 5 +-
> arch/arm64/include/asm/kvm_host.h | 4 +-
> arch/arm64/include/asm/kvm_hyp.h | 5 +
> arch/arm64/include/asm/sysreg.h | 3 +
> arch/arm64/kernel/smp.c | 3 +-
> arch/arm64/kvm/Kconfig | 10 +-
> arch/arm64/kvm/arm.c | 102 +-
> arch/arm64/kvm/hyp/include/hyp/fault.h | 75 ++
> arch/arm64/kvm/hyp/include/hyp/switch.h | 235 ++--
> arch/arm64/kvm/hyp/include/nvhe/fixed_config.h | 200 +++
> arch/arm64/kvm/hyp/include/nvhe/trap_handler.h | 2 +
> arch/arm64/kvm/hyp/nvhe/Makefile | 2 +-
> arch/arm64/kvm/hyp/nvhe/host.S | 26 +-
> arch/arm64/kvm/hyp/nvhe/hyp-main.c | 48 +-
> arch/arm64/kvm/hyp/nvhe/mem_protect.c | 11 +-
> arch/arm64/kvm/hyp/nvhe/pkvm.c | 185 +++
> arch/arm64/kvm/hyp/nvhe/setup.c | 3 +
> arch/arm64/kvm/hyp/nvhe/switch.c | 99 ++
> arch/arm64/kvm/hyp/nvhe/sys_regs.c | 487 ++++++++
> arch/arm64/kvm/hyp/vgic-v3-sr.c | 22 +-
> arch/arm64/kvm/hyp/vhe/switch.c | 16 +
> arch/arm64/kvm/mmu.c | 2 +-
> arch/arm64/kvm/pmu-emul.c | 2 +-
> arch/arm64/kvm/reset.c | 2 +-
> arch/arm64/kvm/sys_regs.c | 41 +-
> arch/arm64/kvm/vgic/vgic-init.c | 2 +-
> arch/arm64/kvm/vgic/vgic-irqfd.c | 2 +-
> arch/arm64/kvm/vgic/vgic-its.c | 18 +-
> arch/arm64/kvm/vgic/vgic-kvm-device.c | 25 +-
> arch/arm64/kvm/vgic/vgic-mmio-v3.c | 8 +-
> arch/arm64/kvm/vgic/vgic-v3.c | 27 +-
> arch/arm64/kvm/vgic/vgic-v4.c | 2 +-
> arch/arm64/kvm/vgic/vgic.h | 5 +-
> arch/mips/kvm/mips.c | 2 +-
> arch/powerpc/include/asm/kvm_book3s.h | 2 +-
> arch/powerpc/include/asm/kvm_host.h | 4 +-
> arch/powerpc/kvm/book3s_xive.c | 2 +-
> arch/powerpc/kvm/powerpc.c | 2 +-
> arch/riscv/Kconfig | 2 +
> arch/riscv/Makefile | 1 +
> arch/riscv/include/asm/csr.h | 87 ++
> arch/riscv/include/asm/kvm_host.h | 264 ++++
> arch/riscv/include/asm/kvm_types.h | 7 +
> arch/riscv/include/asm/kvm_vcpu_fp.h | 59 +
> arch/riscv/include/asm/kvm_vcpu_timer.h | 44 +
> arch/riscv/include/uapi/asm/kvm.h | 128 ++
> arch/riscv/kernel/asm-offsets.c | 156 +++
> arch/riscv/kvm/Kconfig | 35 +
> arch/riscv/kvm/Makefile | 26 +
> arch/riscv/kvm/main.c | 118 ++
> arch/riscv/kvm/mmu.c | 802 ++++++++++++
> arch/riscv/kvm/tlb.S | 74 ++
> arch/riscv/kvm/vcpu.c | 825 +++++++++++++
> arch/riscv/kvm/vcpu_exit.c | 701 +++++++++++
> arch/riscv/kvm/vcpu_fp.c | 167 +++
> arch/riscv/kvm/vcpu_sbi.c | 185 +++
> arch/riscv/kvm/vcpu_switch.S | 400 ++++++
> arch/riscv/kvm/vcpu_timer.c | 225 ++++
> arch/riscv/kvm/vm.c | 97 ++
> arch/riscv/kvm/vmid.c | 120 ++
> arch/s390/include/asm/pgtable.h | 9 +-
> arch/s390/include/asm/uv.h | 15 +-
> arch/s390/kernel/uv.c | 65 +-
> arch/s390/kvm/intercept.c | 5 +
> arch/s390/kvm/kvm-s390.c | 7 +-
> arch/s390/kvm/kvm-s390.h | 9 +
> arch/s390/kvm/priv.c | 2 +
> arch/s390/kvm/pv.c | 21 +-
> arch/s390/kvm/sigp.c | 14 +-
> arch/s390/mm/gmap.c | 15 +-
> arch/s390/mm/pgtable.c | 109 +-
> arch/x86/include/asm/kvm_host.h | 48 +-
> arch/x86/include/asm/kvm_page_track.h | 11 +-
> arch/x86/include/uapi/asm/kvm.h | 4 +
> arch/x86/kernel/irq.c | 4 +-
> arch/x86/kvm/Kconfig | 3 +
> arch/x86/kvm/cpuid.c | 10 +-
> arch/x86/kvm/emulate.c | 5 +
> arch/x86/kvm/hyperv.c | 22 +-
> arch/x86/kvm/ioapic.c | 2 +-
> arch/x86/kvm/ioapic.h | 4 +-
> arch/x86/kvm/mmu.h | 114 +-
> arch/x86/kvm/mmu/mmu.c | 702 ++++++-----
> arch/x86/kvm/mmu/mmu_internal.h | 21 +-
> arch/x86/kvm/mmu/mmutrace.h | 18 +-
> arch/x86/kvm/mmu/page_track.c | 49 +-
> arch/x86/kvm/mmu/paging_tmpl.h | 168 ++-
> arch/x86/kvm/mmu/spte.c | 34 +-
> arch/x86/kvm/mmu/spte.h | 21 +-
> arch/x86/kvm/mmu/tdp_mmu.c | 119 +-
> arch/x86/kvm/mmu/tdp_mmu.h | 6 +-
> arch/x86/kvm/svm/nested.c | 52 +-
> arch/x86/kvm/svm/sev.c | 6 +-
> arch/x86/kvm/svm/svm.c | 168 ++-
> arch/x86/kvm/svm/svm.h | 9 +-
> arch/x86/kvm/trace.h | 9 +-
> arch/x86/kvm/vmx/nested.c | 63 +-
> arch/x86/kvm/vmx/pmu_intel.c | 6 +-
> arch/x86/kvm/vmx/sgx.c | 16 +-
> arch/x86/kvm/vmx/vmx.c | 136 +-
> arch/x86/kvm/vmx/vmx.h | 2 +-
> arch/x86/kvm/x86.c | 800 +++++++-----
> arch/x86/kvm/x86.h | 2 -
> drivers/clocksource/timer-riscv.c | 9 +
> drivers/gpu/drm/i915/Kconfig | 1 +
> include/clocksource/timer-riscv.h | 16 +
> include/linux/kvm_host.h | 18 +-
> include/uapi/linux/kvm.h | 29 +-
> tools/arch/arm64/include/asm/sysreg.h | 1296 ++++++++++++++++++++
> tools/arch/x86/include/asm/pvclock-abi.h | 48 +
> tools/arch/x86/include/asm/pvclock.h | 103 ++
> tools/testing/selftests/kvm/.gitignore | 3 +
> tools/testing/selftests/kvm/Makefile | 7 +-
> tools/testing/selftests/kvm/aarch64/arch_timer.c | 479 ++++++++
> .../selftests/kvm/aarch64/debug-exceptions.c | 30 +-
> .../selftests/kvm/aarch64/psci_cpu_on_test.c | 2 +-
> tools/testing/selftests/kvm/aarch64/vgic_init.c | 369 ++++--
> .../selftests/kvm/include/aarch64/arch_timer.h | 142 +++
> .../testing/selftests/kvm/include/aarch64/delay.h | 25 +
> tools/testing/selftests/kvm/include/aarch64/gic.h | 21 +
> .../selftests/kvm/include/aarch64/processor.h | 90 +-
> .../selftests/kvm/include/aarch64/spinlock.h | 13 +
> tools/testing/selftests/kvm/include/aarch64/vgic.h | 20 +
> tools/testing/selftests/kvm/include/kvm_util.h | 13 +
> tools/testing/selftests/kvm/kvm_create_max_vcpus.c | 2 +-
> tools/testing/selftests/kvm/lib/aarch64/gic.c | 95 ++
> .../selftests/kvm/lib/aarch64/gic_private.h | 21 +
> tools/testing/selftests/kvm/lib/aarch64/gic_v3.c | 240 ++++
> tools/testing/selftests/kvm/lib/aarch64/gic_v3.h | 70 ++
> .../testing/selftests/kvm/lib/aarch64/processor.c | 24 +-
> tools/testing/selftests/kvm/lib/aarch64/spinlock.c | 27 +
> tools/testing/selftests/kvm/lib/aarch64/vgic.c | 70 ++
> tools/testing/selftests/kvm/lib/kvm_util.c | 46 +-
> tools/testing/selftests/kvm/lib/sparsebit.c | 2 +-
> tools/testing/selftests/kvm/lib/x86_64/processor.c | 4 +-
> tools/testing/selftests/kvm/lib/x86_64/svm.c | 14 +-
> tools/testing/selftests/kvm/memslot_perf_test.c | 56 +-
> .../selftests/kvm/system_counter_offset_test.c | 132 ++
> .../selftests/kvm/x86_64/cr4_cpuid_sync_test.c | 3 +-
> .../testing/selftests/kvm/x86_64/kvm_clock_test.c | 203 +++
> .../selftests/kvm/x86_64/vmx_tsc_adjust_test.c | 2 +-
> virt/kvm/eventfd.c | 15 +-
> virt/kvm/kvm_main.c | 127 +-
> 152 files changed, 11646 insertions(+), 1752 deletions(-)
>
>
> diff --cc arch/riscv/Kconfig
> index c28b743eba57,f5fe8a7f0e24..000000000000
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@@ -566,3 -561,6 +566,5 @@@ menu "Power management options
> source "kernel/power/Kconfig"
>
> endmenu
> +
> + source "arch/riscv/kvm/Kconfig"
> -source "drivers/firmware/Kconfig"
> diff --cc arch/x86/kvm/x86.c
> index 2686f2edb47c,ac83d873d65b..000000000000
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@@ -10485,16 -10869,15 +10730,6 @@@ static int sync_regs(struct kvm_vcpu *v
> return 0;
> }
>
> - static void fx_init(struct kvm_vcpu *vcpu)
> -void kvm_free_guest_fpu(struct kvm_vcpu *vcpu)
> --{
> - /*
> - * Ensure guest xcr0 is valid for loading
> - */
> - vcpu->arch.xcr0 = XFEATURE_MASK_FP;
> -
> - vcpu->arch.cr0 |= X86_CR0_ET;
> - if (vcpu->arch.guest_fpu) {
> - kmem_cache_free(x86_fpu_cache, vcpu->arch.guest_fpu);
> - vcpu->arch.guest_fpu = NULL;
> - }
> --}
> -EXPORT_SYMBOL_GPL(kvm_free_guest_fpu);
> --
> int kvm_arch_vcpu_precreate(struct kvm *kvm, unsigned int id)
> {
> if (kvm_check_tsc_unstable() && atomic_read(&kvm->online_vcpus) != 0)
> @@@ -10551,13 -10934,24 +10786,11 @@@ int kvm_arch_vcpu_create(struct kvm_vcp
> if (!alloc_emulate_ctxt(vcpu))
> goto free_wbinvd_dirty_mask;
>
> - vcpu->arch.user_fpu = kmem_cache_zalloc(x86_fpu_cache,
> - GFP_KERNEL_ACCOUNT);
> - if (!vcpu->arch.user_fpu) {
> - pr_err("kvm: failed to allocate userspace's fpu\n");
> - goto free_emulate_ctxt;
> - }
> -
> - vcpu->arch.guest_fpu = kmem_cache_zalloc(x86_fpu_cache,
> - GFP_KERNEL_ACCOUNT);
> - if (!vcpu->arch.guest_fpu) {
> + if (!fpu_alloc_guest_fpstate(&vcpu->arch.guest_fpu)) {
> pr_err("kvm: failed to allocate vcpu's fpu\n");
> - goto free_user_fpu;
> + goto free_emulate_ctxt;
> }
> - fpstate_init(&vcpu->arch.guest_fpu->state);
> - if (boot_cpu_has(X86_FEATURE_XSAVES))
> - vcpu->arch.guest_fpu->state.xsave.header.xcomp_bv =
> - host_xcr0 | XSTATE_COMPACTION_ENABLED;
>
> - fx_init(vcpu);
> -
> vcpu->arch.maxphyaddr = cpuid_query_maxphyaddr(vcpu);
> vcpu->arch.reserved_gpa_bits = kvm_vcpu_reserved_gpa_bits_raw(vcpu);
>
> diff --cc arch/riscv/Kconfig
> index c28b743eba57,f5fe8a7f0e24..000000000000
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@@ -566,3 -561,6 +566,5 @@@ menu "Power management options
> source "kernel/power/Kconfig"
>
> endmenu
> +
> + source "arch/riscv/kvm/Kconfig"
> -source "drivers/firmware/Kconfig"
> diff --cc arch/x86/kvm/x86.c
> index 2686f2edb47c,ac83d873d65b..000000000000
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@@ -10485,16 -10869,15 +10730,6 @@@ static int sync_regs(struct kvm_vcpu *v
> return 0;
> }
>
> - static void fx_init(struct kvm_vcpu *vcpu)
> -void kvm_free_guest_fpu(struct kvm_vcpu *vcpu)
> --{
> - /*
> - * Ensure guest xcr0 is valid for loading
> - */
> - vcpu->arch.xcr0 = XFEATURE_MASK_FP;
> -
> - vcpu->arch.cr0 |= X86_CR0_ET;
> - if (vcpu->arch.guest_fpu) {
> - kmem_cache_free(x86_fpu_cache, vcpu->arch.guest_fpu);
> - vcpu->arch.guest_fpu = NULL;
> - }
> --}
> -EXPORT_SYMBOL_GPL(kvm_free_guest_fpu);
> --
> int kvm_arch_vcpu_precreate(struct kvm *kvm, unsigned int id)
> {
> if (kvm_check_tsc_unstable() && atomic_read(&kvm->online_vcpus) != 0)
> @@@ -10551,13 -10934,24 +10786,11 @@@ int kvm_arch_vcpu_create(struct kvm_vcp
> if (!alloc_emulate_ctxt(vcpu))
> goto free_wbinvd_dirty_mask;
>
> - vcpu->arch.user_fpu = kmem_cache_zalloc(x86_fpu_cache,
> - GFP_KERNEL_ACCOUNT);
> - if (!vcpu->arch.user_fpu) {
> - pr_err("kvm: failed to allocate userspace's fpu\n");
> - goto free_emulate_ctxt;
> - }
> -
> - vcpu->arch.guest_fpu = kmem_cache_zalloc(x86_fpu_cache,
> - GFP_KERNEL_ACCOUNT);
> - if (!vcpu->arch.guest_fpu) {
> + if (!fpu_alloc_guest_fpstate(&vcpu->arch.guest_fpu)) {
> pr_err("kvm: failed to allocate vcpu's fpu\n");
> - goto free_user_fpu;
> + goto free_emulate_ctxt;
> }
> - fpstate_init(&vcpu->arch.guest_fpu->state);
> - if (boot_cpu_has(X86_FEATURE_XSAVES))
> - vcpu->arch.guest_fpu->state.xsave.header.xcomp_bv =
> - host_xcr0 | XSTATE_COMPACTION_ENABLED;
>
> - fx_init(vcpu);
> -
> vcpu->arch.maxphyaddr = cpuid_query_maxphyaddr(vcpu);
> vcpu->arch.reserved_gpa_bits = kvm_vcpu_reserved_gpa_bits_raw(vcpu);
>
>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [GIT PULL] First batch of KVM changes for Linux 5.16
2021-11-08 13:48 ` Christian Borntraeger
@ 2021-11-08 14:03 ` Paolo Bonzini
0 siblings, 0 replies; 4+ messages in thread
From: Paolo Bonzini @ 2021-11-08 14:03 UTC (permalink / raw)
To: Christian Borntraeger, torvalds; +Cc: linux-kernel, kvm
On 11/8/21 14:48, Christian Borntraeger wrote:
>
>> Linus,
>>
>> The following changes since commit
>> 8228c77d8b56e3f735baf71fefb1b548c23691a7:
>>
>> KVM: x86: switch pvclock_gtod_sync_lock to a raw spinlock
>> (2021-10-25 08:14:38 -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 52cf891d8dbd7592261fa30f373410b97f22b76c:
>>
>> Merge tag 'kvm-riscv-5.16-2' of https://github.com/kvm-riscv/linux
>> into HEAD (2021-11-02 09:15:31 -0400)
>
> It seems that this was not yet merged, correct?
It was:
commit d7e0a795bf37a13554c80cfc5ba97abedf53f391
Merge: 44261f8e287d 52cf891d8dbd
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Tue Nov 2 11:24:14 2021 -0700
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
...
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
(227 commits)
...
KVM: s390: add debug statement for diag 318 CPNC data
KVM: s390: pv: properly handle page flags for protected guests
KVM: s390: Fix handle_sske page fault handling
...
Paolo
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2021-11-08 14:04 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2021-11-02 16:53 [GIT PULL] First batch of KVM changes for Linux 5.16 Paolo Bonzini
2021-11-02 18:37 ` pr-tracker-bot
2021-11-08 13:48 ` Christian Borntraeger
2021-11-08 14:03 ` Paolo Bonzini
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