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Fri, 13 Feb 2026 08:21:02 -0800 (PST) X-Received: by 2002:a05:6000:230b:b0:435:fb84:1c87 with SMTP id ffacd0b85a97d-43797942c1emr4548816f8f.61.1770999661470; Fri, 13 Feb 2026 08:21:01 -0800 (PST) Received: from [192.168.10.48] ([151.61.26.160]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-43796abd259sm6504938f8f.24.2026.02.13.08.21.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Feb 2026 08:21:00 -0800 (PST) From: Paolo Bonzini To: torvalds@linux-foundation.org Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org Subject: [GIT PULL] KVM changes for Linux 7.0 Date: Fri, 13 Feb 2026 17:20:58 +0100 Message-ID: <20260213162059.22230-1-pbonzini@redhat.com> X-Mailer: git-send-email 2.52.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Linus, The following changes since commit 05f7e89ab9731565d8a62e3b5d1ec206485eeb0b: Linux 6.19 (2026-02-08 13:03:27 -0800) 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 b1195183ed42f1522fae3fe44ebee3af437aa000: Merge tag 'kvm-s390-next-7.0-1' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD (2026-02-11 18:52:27 +0100) ---------------------------------------------------------------- Loongarch: - Add more CPUCFG mask bits. - Improve feature detection. - Add lazy load support for FPU and binary translation (LBT) register state. - Fix return value for memory reads from and writes to in-kernel devices. - Add support for detecting preemption from within a guest. - Add KVM steal time test case to tools/selftests. ARM: - Add support for FEAT_IDST, allowing ID registers that are not implemented to be reported as a normal trap rather than as an UNDEF exception. - Add sanitisation of the VTCR_EL2 register, fixing a number of UXN/PXN/XN bugs in the process. - Full handling of RESx bits, instead of only RES0, and resulting in SCTLR_EL2 being added to the list of sanitised registers. - More pKVM fixes for features that are not supposed to be exposed to guests. - Make sure that MTE being disabled on the pKVM host doesn't give it the ability to attack the hypervisor. - Allow pKVM's host stage-2 mappings to use the Force Write Back version of the memory attributes by using the "pass-through' encoding. - Fix trapping of ICC_DIR_EL1 on GICv5 hosts emulating GICv3 for the guest. - Preliminary work for guest GICv5 support. - A bunch of debugfs fixes, removing pointless custom iterators stored in guest data structures. - A small set of FPSIMD cleanups. - Selftest fixes addressing the incorrect alignment of page allocation. - Other assorted low-impact fixes and spelling fixes. RISC-V: - Fixes for issues discoverd by KVM API fuzzing in kvm_riscv_aia_imsic_has_attr(), kvm_riscv_aia_imsic_rw_attr(), and kvm_riscv_vcpu_aia_imsic_update() - Allow Zalasr, Zilsd and Zclsd extensions for Guest/VM - Transparent huge page support for hypervisor page tables - Adjust the number of available guest irq files based on MMIO register sizes found in the device tree or the ACPI tables - Add RISC-V specific paging modes to KVM selftests - Detect paging mode at runtime for selftests s390: - Performance improvement for vSIE (aka nested virtualization) - Completely new memory management. s390 was a special snowflake that enlisted help from the architecture's page table management to build hypervisor page tables, in particular enabling sharing the last level of page tables. This however was a lot of code (~3K lines) in order to support KVM, and also blocked several features. The biggest advantages is that the page size of userspace is completely independent of the page size used by the guest: userspace can mix normal pages, THPs and hugetlbfs as it sees fit, and in fact transparent hugepages were not possible before. It's also now possible to have nested guests and guests with huge pages running on the same host. - Maintainership change for s390 vfio-pci - Small quality of life improvement for protected guests x86: - Add support for giving the guest full ownership of PMU hardware (contexted switched around the fastpath run loop) and allowing direct access to data MSRs and PMCs (restricted by the vPMU model). KVM still intercepts access to control registers, e.g. to enforce event filtering and to prevent the guest from profiling sensitive host state. This is more accurate, since it has no risk of contention and thus dropped events, and also has significantly less overhead. For more information, see the commit message for merge commit bf2c3138ae36 ("Merge tag 'kvm-x86-pmu-6.20' of https://github.com/kvm-x86/linux into HEAD"). - Disallow changing the virtual CPU model if L2 is active, for all the same reasons KVM disallows change the model after the first KVM_RUN. - Fix a bug where KVM would incorrectly reject host accesses to PV MSRs when running with KVM_CAP_ENFORCE_PV_FEATURE_CPUID enabled, even if those were advertised as supported to userspace, - Fix a bug with protected guest state (SEV-ES/SNP and TDX) VMs, where KVM would attempt to read CR3 configuring an async #PF entry. - Fail the build if EXPORT_SYMBOL_GPL or EXPORT_SYMBOL is used in KVM (for x86 only) to enforce usage of EXPORT_SYMBOL_FOR_KVM_INTERNAL. Only a few exports that are intended for external usage, and those are allowed explicitly. - When checking nested events after a vCPU is unblocked, ignore -EBUSY instead of WARNing. Userspace can sometimes put the vCPU into what should be an impossible state, and spurious exit to userspace on -EBUSY does not really do anything to solve the issue. - Also throw in the towel and drop the WARN on INIT/SIPI being blocked when vCPU is in Wait-For-SIPI, which also resulted in playing whack-a-mole with syzkaller stuffing architecturally impossible states into KVM. - Add support for new Intel instructions that don't require anything beyond enumerating feature flags to userspace. - Grab SRCU when reading PDPTRs in KVM_GET_SREGS2. - Add WARNs to guard against modifying KVM's CPU caps outside of the intended setup flow, as nested VMX in particular is sensitive to unexpected changes in KVM's golden configuration. - Add a quirk to allow userspace to opt-in to actually suppress EOI broadcasts when the suppression feature is enabled by the guest (currently limited to split IRQCHIP, i.e. userspace I/O APIC). Sadly, simply fixing KVM to honor Suppress EOI Broadcasts isn't an option as some userspaces have come to rely on KVM's buggy behavior (KVM advertises Supress EOI Broadcast irrespective of whether or not userspace I/O APIC supports Directed EOIs). - Clean up KVM's handling of marking mapped vCPU pages dirty. - Drop a pile of *ancient* sanity checks hidden behind in KVM's unused ASSERT() macro, most of which could be trivially triggered by the guest and/or user, and all of which were useless. - Fold "struct dest_map" into its sole user, "struct rtc_status", to make it more obvious what the weird parameter is used for, and to allow fropping these RTC shenanigans if CONFIG_KVM_IOAPIC=n. - Bury all of ioapic.h, i8254.h and related ioctls (including KVM_CREATE_IRQCHIP) behind CONFIG_KVM_IOAPIC=y. - Add a regression test for recent APICv update fixes. - Handle "hardware APIC ISR", a.k.a. SVI, updates in kvm_apic_update_apicv() to consolidate the updates, and to co-locate SVI updates with the updates for KVM's own cache of ISR information. - Drop a dead function declaration. - Minor cleanups. x86 (Intel): - Rework KVM's handling of VMCS updates while L2 is active to temporarily switch to vmcs01 instead of deferring the update until the next nested VM-Exit. The deferred updates approach directly contributed to several bugs, was proving to be a maintenance burden due to the difficulty in auditing the correctness of deferred updates, and was polluting "struct nested_vmx" with a growing pile of booleans. - Fix an SGX bug where KVM would incorrectly try to handle EPCM page faults, and instead always reflect them into the guest. Since KVM doesn't shadow EPCM entries, EPCM violations cannot be due to KVM interference and can't be resolved by KVM. - Fix a bug where KVM would register its posted interrupt wakeup handler even if loading kvm-intel.ko ultimately failed. - Disallow access to vmcb12 fields that aren't fully supported, mostly to avoid weirdness and complexity for FRED and other features, where KVM wants enable VMCS shadowing for fields that conditionally exist. - Print out the "bad" offsets and values if kvm-intel.ko refuses to load (or refuses to online a CPU) due to a VMCS config mismatch. x86 (AMD): - Drop a user-triggerable WARN on nested_svm_load_cr3() failure. - Add support for virtualizing ERAPS. Note, correct virtualization of ERAPS relies on an upcoming, publicly announced change in the APM to reduce the set of conditions where hardware (i.e. KVM) *must* flush the RAP. - Ignore nSVM intercepts for instructions that are not supported according to L1's virtual CPU model. - Add support for expedited writes to the fast MMIO bus, a la VMX's fastpath for EPT Misconfig. - Don't set GIF when clearing EFER.SVME, as GIF exists independently of SVM, and allow userspace to restore nested state with GIF=0. - Treat exit_code as an unsigned 64-bit value through all of KVM. - Add support for fetching SNP certificates from userspace. - Fix a bug where KVM would use vmcb02 instead of vmcb01 when emulating VMLOAD or VMSAVE on behalf of L2. - Misc fixes and cleanups. x86 selftests: - Add a regression test for TPR<=>CR8 synchronization and IRQ masking. - Overhaul selftest's MMU infrastructure to genericize stage-2 MMU support, and extend x86's infrastructure to support EPT and NPT (for L2 guests). - Extend several nested VMX tests to also cover nested SVM. - Add a selftest for nested VMLOAD/VMSAVE. - Rework the nested dirty log test, originally added as a regression test for PML where KVM logged L2 GPAs instead of L1 GPAs, to improve test coverage and to hopefully make the test easier to understand and maintain. guest_memfd: - Remove kvm_gmem_populate()'s preparation tracking and half-baked hugepage handling. SEV/SNP was the only user of the tracking and it can do it via the RMP. - Retroactively document and enforce (for SNP) that KVM_SEV_SNP_LAUNCH_UPDATE and KVM_TDX_INIT_MEM_REGION require the source page to be 4KiB aligned, to avoid non-trivial complexity for something that no known VMM seems to be doing and to avoid an API special case for in-place conversion, which simply can't support unaligned sources. - When populating guest_memfd memory, GUP the source page in common code and pass the refcounted page to the vendor callback, instead of letting vendor code do the heavy lifting. Doing so avoids a looming deadlock bug with in-place due an AB-BA conflict betwee mmap_lock and guest_memfd's filemap invalidate lock. Generic: - Fix a bug where KVM would ignore the vCPU's selected address space when creating a vCPU-specific mapping of guest memory. Actually this bug could not be hit even on x86, the only architecture with multiple address spaces, but it's a bug nevertheless. ---------------------------------------------------------------- Amit Shah (1): KVM: SVM: Virtualize and advertise support for ERAPS Arnd Bergmann (1): KVM: s390: Add explicit padding to struct kvm_s390_keyop Ben Dooks (1): KVM: arm64: Fix missing include Bibo Mao (13): LoongArch: KVM: Add more CPUCFG mask bits LoongArch: KVM: Move feature detection in kvm_vm_init_features() LoongArch: KVM: Add msgint registers in kvm_init_gcsr_flag() LoongArch: KVM: Check VM msgint feature during interrupt handling LoongArch: KVM: Handle LOONGARCH_CSR_IPR during vCPU context switch LoongArch: KVM: Move LSX capability check in exception handler LoongArch: KVM: Move LASX capability check in exception handler LoongArch: KVM: Move LBT capability check in exception handler LoongArch: KVM: Add FPU/LBT delay load support LoongArch: KVM: Set default return value in KVM IO bus ops LoongArch: KVM: Add paravirt preempt feature in hypervisor side LoongArch: KVM: Add paravirt vcpu_is_preempted() support in guest side KVM: LoongArch: selftests: Add steal time test case Binbin Wu (1): KVM: VMX: Remove declaration of nested_mark_vmcs12_pages_dirty() Claudio Imbrenda (32): KVM: s390: Refactor pgste lock and unlock functions KVM: s390: Add P bit in table entry bitfields, move union vaddress s390: Make UV folio operations work on whole folio s390: Move sske_frame() to a header KVM: s390: Add gmap_helper_set_unused() KVM: s390: Introduce import_lock KVM: s390: Export two functions s390/mm: Warn if uv_convert_from_secure_pte() fails KVM: s390: vsie: Pass gmap explicitly as parameter KVM: s390: Enable KVM_GENERIC_MMU_NOTIFIER KVM: s390: Rename some functions in gaccess.c KVM: s390: KVM-specific bitfields and helper functions KVM: s390: KVM page table management functions: allocation KVM: s390: KVM page table management functions: clear and replace KVM: s390: KVM page table management functions: walks KVM: s390: KVM page table management functions: storage keys KVM: s390: KVM page table management functions: lifecycle management KVM: s390: KVM page table management functions: CMMA KVM: s390: New gmap code KVM: s390: Add helper functions for fault handling KVM: s390: Add some helper functions needed for vSIE KVM: s390: Stop using CONFIG_PGSTE KVM: s390: Storage key functions refactoring KVM: s390: Switch to new gmap KVM: s390: Remove gmap from s390/mm KVM: S390: Remove PGSTE code from linux/s390 mm KVM: s390: Enable 1M pages for gmap KVM: s390: Storage key manipulation IOCTL KVM: s390: selftests: Add selftest for the KVM_S390_KEYOP ioctl KVM: s390: Use guest address to mark guest page dirty KVM: s390: vsie: Fix race in walk_guest_tables() KVM: s390: vsie: Fix race in acquire_gmap_shadow() Dapeng Mi (11): KVM: x86/pmu: Start stubbing in mediated PMU support KVM: x86/pmu: Implement Intel mediated PMU requirements and constraints KVM: x86/pmu: Disable RDPMC interception for compatible mediated vPMU KVM: x86/pmu: Load/save GLOBAL_CTRL via entry/exit fields for mediated PMU KVM: x86/pmu: Disable interception of select PMU MSRs for mediated vPMUs KVM: x86/pmu: Bypass perf checks when emulating mediated PMU counter accesses KVM: x86/pmu: Reprogram mediated PMU event selectors on event filter updates KVM: x86/pmu: Load/put mediated PMU context when entering/exiting guest KVM: x86/pmu: Handle emulated instruction for mediated vPMU KVM: nVMX: Add macros to simplify nested MSR interception setting KVM: x86/pmu: Expose enable_mediated_pmu parameter to user space Eric Farman (2): KVM: s390: vsie: retry SIE when unable to get vsie_page MAINTAINERS: Replace backup for s390 vfio-pci Fred Griffoul (1): KVM: nVMX: Mark APIC access page dirty when syncing vmcs12 pages Fuad Tabba (22): KVM: arm64: selftests: Disable unused TTBR1_EL1 translations KVM: arm64: selftests: Fix incorrect rounding in page_align() KVM: riscv: selftests: Fix incorrect rounding in page_align() KVM: selftests: Move page_align() to shared header KVM: selftests: Fix typos and stale comments in kvm_util KVM: arm64: Fix Trace Buffer trapping for protected VMs KVM: arm64: Fix Trace Buffer trap polarity for protected VMs KVM: arm64: Fix MTE flag initialization for protected VMs KVM: arm64: Introduce helper to calculate fault IPA offset KVM: arm64: Include VM type when checking VM capabilities in pKVM KVM: arm64: Do not allow KVM_CAP_ARM_MTE for any guest in pKVM KVM: arm64: Track KVM IOCTLs and their associated KVM caps KVM: arm64: Check whether a VM IOCTL is allowed in pKVM KVM: arm64: Prevent host from managing timer offsets for protected VMs KVM: arm64: Remove dead code resetting HCR_EL2 for pKVM KVM: arm64: Trap MTE access and discovery when MTE is disabled KVM: arm64: Inject UNDEF when accessing MTE sysregs with MTE disabled KVM: arm64: Use kvm_has_mte() in pKVM trap initialization KVM: arm64: Use standard seq_file iterator for idregs debugfs KVM: arm64: Reimplement vgic-debug XArray iteration KVM: arm64: Use standard seq_file iterator for vgic-debug debugfs KVM: arm64: nv: Avoid NV stage-2 code when NV is not supported Hou Wenlong (1): KVM: VMX: Don't register posted interrupt wakeup handler if alloc_kvm_area() fails Jessica Liu (1): RISC-V: KVM: Transparent huge page support Jiakai Xu (3): RISC-V: KVM: Fix null pointer dereference in kvm_riscv_aia_imsic_has_attr() RISC-V: KVM: Fix null pointer dereference in kvm_riscv_aia_imsic_rw_attr() RISC-V: KVM: Skip IMSIC update if vCPU IMSIC state is not initialized Jim Mattson (2): KVM: SVM: Don't set GIF when clearing EFER.SVME KVM: SVM: Allow KVM_SET_NESTED_STATE to clear GIF when SVME==0 Jun Miao (1): KVM: x86: align the code with kvm_x86_call() Kevin Cheng (1): KVM: SVM: Don't allow L1 intercepts for instructions not advertised Khushit Shah (1): KVM: x86: Add x2APIC "features" to control EOI broadcast suppression Kornel Dulęba (1): KVM: arm64: Fix error checking for FFA_VERSION MJ Pooladkhay (1): KVM: selftests: Fix sign extension bug in get_desc64_base() Maciej S. Szmigiero (1): KVM: selftests: Test TPR / CR8 sync and interrupt masking Marc Zyngier (53): Merge branch kvmarm-fixes-6.19-1 into kvm-arm64/vtcr arm64: Convert ID_AA64MMFR0_EL1.TGRAN{4,16,64}_2 to UnsignedEnum arm64: Convert VTCR_EL2 to sysreg infratructure KVM: arm64: Account for RES1 bits in DECLARE_FEAT_MAP() and co KVM: arm64: Convert VTCR_EL2 to config-driven sanitisation KVM: arm64: Honor UX/PX attributes for EL2 S1 mappings arm64: Repaint ID_AA64MMFR2_EL1.IDS description KVM: arm64: Add trap routing for GMID_EL1 KVM: arm64: Add a generic synchronous exception injection primitive KVM: arm64: Handle FEAT_IDST for sysregs without specific handlers KVM: arm64: Handle CSSIDR2_EL1 and SMIDR_EL1 in a generic way KVM: arm64: Force trap of GMID_EL1 when the guest doesn't have MTE KVM: arm64: pkvm: Add a generic synchronous exception injection primitive KVM: arm64: pkvm: Report optional ID register traps with a 0x18 syndrome KVM: arm64: selftests: Add a test for FEAT_IDST KVM: arm64: Always populate FGT masks at boot time Merge branch arm64/for-next/cpufeature into kvmarm-master/next Merge branch kvm-arm64/vtcr into kvmarm-master/next Merge branch kvm-arm64/selftests-6.20 into kvmarm-master/next Merge branch kvm-arm64/feat_idst into kvmarm-master/next Merge branch kvm-arm64/pkvm-features-6.20 into kvmarm-master/next arm64: Add MT_S2{,_FWB}_AS_S1 encodings KVM: arm64: Add KVM_PGTABLE_S2_AS_S1 flag KVM: arm64: Switch pKVM host S2 over to KVM_PGTABLE_S2_AS_S1 KVM: arm64: Kill KVM_PGTABLE_S2_NOFWB KVM: arm64: Simplify PAGE_S2_MEMATTR arm64: Convert SCTLR_EL2 to sysreg infrastructure KVM: arm64: Remove duplicate configuration for SCTLR_EL1.{EE,E0E} KVM: arm64: Introduce standalone FGU computing primitive KVM: arm64: Introduce data structure tracking both RES0 and RES1 bits KVM: arm64: Extend unified RESx handling to runtime sanitisation KVM: arm64: Inherit RESx bits from FGT register descriptors KVM: arm64: Allow RES1 bits to be inferred from configuration KVM: arm64: Correctly handle SCTLR_EL1 RES1 bits for unsupported features KVM: arm64: Convert HCR_EL2.RW to AS_RES1 KVM: arm64: Simplify FIXED_VALUE handling KVM: arm64: Add REQUIRES_E2H1 constraint as configuration flags KVM: arm64: Add RES1_WHEN_E2Hx constraints as configuration flags KVM: arm64: Move RESx into individual register descriptors KVM: arm64: Simplify handling of HCR_EL2.E2H RESx KVM: arm64: Get rid of FIXED_VALUE altogether KVM: arm64: Simplify handling of full register invalid constraint KVM: arm64: Remove all traces of FEAT_TME KVM: arm64: Remove all traces of HCR_EL2.MIOCNCE KVM: arm64: Add sanitisation to SCTLR_EL2 KVM: arm64: Add debugfs file dumping computed RESx values Merge branch kvm-arm64/pkvm-no-mte into kvmarm-master/next Merge branch kvm-arm64/fwb-for-all into kvmarm-master/next Merge branch kvm-arm64/gicv3-tdir-fixes into kvmarm-master/next Merge branch kvm-arm64/gicv5-prologue into kvmarm-master/next Merge branch kvm-arm64/debugfs-fixes into kvmarm-master/next Merge branch kvm-arm64/resx into kvmarm-master/next Merge branch kvm-arm64/misc-6.20 into kvmarm-master/next Mark Rutland (3): KVM: arm64: Fix comment in fpsimd_lazy_switch_to_host() KVM: arm64: Shuffle KVM_HOST_DATA_FLAG_* indices KVM: arm64: Remove ISB after writing FPEXC32_EL2 Michael Roth (7): KVM: guest_memfd: Remove partial hugepage handling from kvm_gmem_populate() KVM: guest_memfd: Remove preparation tracking KVM: SEV: Document/enforce page-alignment for KVM_SEV_SNP_LAUNCH_UPDATE KVM: TDX: Document alignment requirements for KVM_TDX_INIT_MEM_REGION KVM: guest_memfd: GUP source pages prior to populating guest memory KVM: Introduce KVM_EXIT_SNP_REQ_CERTS for SNP certificate-fetching KVM: SEV: Add KVM_SEV_SNP_ENABLE_REQ_CERTS command Mingwei Zhang (2): KVM: x86/pmu: Introduce eventsel_hw to prepare for pmu event filtering KVM: nVMX: Disable PMU MSR interception as appropriate while running L2 Paolo Bonzini (11): Merge tag 'loongarch-kvm-6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson into HEAD Merge tag 'kvmarm-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD Merge tag 'kvm-x86-selftests-6.20' of https://github.com/kvm-x86/linux into HEAD Merge tag 'kvm-x86-vmx-6.20' of https://github.com/kvm-x86/linux into HEAD Merge tag 'kvm-x86-svm-6.20' of https://github.com/kvm-x86/linux into HEAD Merge tag 'kvm-x86-misc-6.20' of https://github.com/kvm-x86/linux into HEAD Merge tag 'kvm-riscv-6.20-1' of https://github.com/kvm-riscv/linux into HEAD Merge tag 'kvm-x86-gmem-6.20' of https://github.com/kvm-x86/linux into HEAD Merge tag 'kvm-x86-apic-6.20' of https://github.com/kvm-x86/linux into HEAD Merge tag 'kvm-x86-pmu-6.20' of https://github.com/kvm-x86/linux into HEAD Merge tag 'kvm-s390-next-7.0-1' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD Petteri Kangaslampi (1): KVM: arm64: Calculate hyp VA size only once Pincheng Wang (2): riscv: KVM: allow Zilsd and Zclsd extensions for Guest/VM KVM: riscv: selftests: add Zilsd and Zclsd extension to get-reg-list test Qiang Ma (1): RISC-V: KVM: Remove unnecessary 'ret' assignment Sandipan Das (1): KVM: x86/pmu: Always stuff GuestOnly=1,HostOnly=0 for mediated PMCs on AMD Sascha Bischoff (6): KVM: arm64: gic: Enable GICv3 CPUIF trapping on GICv5 hosts if required KVM: arm64: Correct test for ICH_HCR_EL2_TDIR cap for GICv5 hosts KVM: arm64: gic-v3: Switch vGIC-v3 to use generated ICH_VMCR_EL2 arm64/sysreg: Drop ICH_HFGRTR_EL2.ICC_HAPR_EL1 and make RES1 KVM: arm64: gic: Set vgic_model before initing private IRQs irqchip/gic-v5: Check if impl is virt capable Sean Christopherson (69): KVM: x86: Disallow setting CPUID and/or feature MSRs if L2 is active KVM: VMX: Always reflect SGX EPCM #PFs back into the guest KVM: Add a simplified wrapper for registering perf callbacks KVM: x86/pmu: Implement AMD mediated PMU requirements KVM: x86/pmu: Disallow emulation in the fastpath if mediated PMCs are active KVM: nSVM: Disable PMU MSR interception as appropriate while running L2 KVM: x86/pmu: Elide WRMSRs when loading guest PMCs if values already match KVM: VMX: Drop intermediate "guest" field from msr_autostore KVM: nVMX: Don't update msr_autostore count when saving TSC for vmcs12 KVM: VMX: Dedup code for removing MSR from VMCS's auto-load list KVM: VMX: Drop unused @entry_only param from add_atomic_switch_msr() KVM: VMX: Bug the VM if either MSR auto-load list is full KVM: VMX: Set MSR index auto-load entry if and only if entry is "new" KVM: VMX: Compartmentalize adding MSRs to host vs. guest auto-load list KVM: VMX: Dedup code for adding MSR to VMCS's auto list KVM: VMX: Initialize vmcs01.VM_EXIT_MSR_STORE_ADDR with list address KVM: VMX: Add mediated PMU support for CPUs without "save perf global ctrl" KVM: Use vCPU specific memslots in __kvm_vcpu_map() KVM: x86: Mark vmcs12 pages as dirty if and only if they're mapped KVM: nVMX: Precisely mark vAPIC and PID maps dirty when delivering nested PI KVM: VMX: Move nested_mark_vmcs12_pages_dirty() to vmx.c, and rename KVM: x86: Return "unsupported" instead of "invalid" on access to unsupported PV MSR KVM: selftests: Add "struct kvm_mmu" to track a given MMU instance KVM: selftests: Plumb "struct kvm_mmu" into x86's MMU APIs KVM: selftests: Add a "struct kvm_mmu_arch arch" member to kvm_mmu KVM: selftests: Add a stage-2 MMU instance to kvm_vm KVM: selftests: Move TDP mapping functions outside of vmx.c KVM: selftests: Rename vm_get_page_table_entry() to vm_get_pte() KVM: nSVM: Remove a user-triggerable WARN on nested_svm_load_cr3() succeeding KVM: SVM: Rename "fault_address" to "gpa" in npf_interception() KVM: SVM: Add support for expedited writes to the fast MMIO bus KVM: x86: Enforce use of EXPORT_SYMBOL_FOR_KVM_INTERNAL KVM: x86: Drop ASSERT()s on APIC/vCPU being non-NULL KVM: x86: Drop guest/user-triggerable asserts on IRR/ISR vectors KVM: x86: Drop ASSERT() on I/O APIC EOIs being only for LEVEL_to WARN_ON_ONCE KVM: x86: Drop guest-triggerable ASSERT()s on I/O APIC access alignment KVM: x86: Drop MAX_NR_RESERVED_IOAPIC_PINS, use KVM_MAX_IRQ_ROUTES directly KVM: x86: Add a wrapper to handle common case of IRQ delivery without dest_map KVM: x86: Fold "struct dest_map" into "struct rtc_status" KVM: x86: Bury ioapic.h definitions behind CONFIG_KVM_IOAPIC KVM: x86: Hide KVM_IRQCHIP_KERNEL behind CONFIG_KVM_IOAPIC=y KVM: selftests: Add a test to verify APICv updates (while L2 is active) KVM: nVMX: Switch to vmcs01 to update PML controls on-demand if L2 is active KVM: nVMX: Switch to vmcs01 to update TPR threshold on-demand if L2 is active KVM: nVMX: Switch to vmcs01 to update SVI on-demand if L2 is active KVM: nVMX: Switch to vmcs01 to refresh APICv controls on-demand if L2 is active KVM: nVMX: Switch to vmcs01 to update APIC page on-demand if L2 is active KVM: nVMX: Switch to vmcs01 to set virtual APICv mode on-demand if L2 is active KVM: x86: Update APICv ISR (a.k.a. SVI) as part of kvm_apic_update_apicv() KVM: SVM: Drop the module param to control SEV-ES DebugSwap KVM: SVM: Tag sev_supported_vmsa_features as read-only after init KVM: x86: Ignore -EBUSY when checking nested events from vcpu_block() KVM: SVM: Add a helper to detect VMRUN failures KVM: SVM: Open code handling of unexpected exits in svm_invoke_exit_handler() KVM: SVM: Check for an unexpected VM-Exit after RETPOLINE "fast" handling KVM: SVM: Filter out 64-bit exit codes when invoking exit handlers on bare metal KVM: SVM: Treat exit_code as an unsigned 64-bit value through all of KVM KVM: SVM: Limit incorrect check on SVM_EXIT_ERR to running as a VM KVM: SVM: Harden exit_code against being used in Spectre-like attacks KVM: SVM: Assert that Hyper-V's HV_SVM_EXITCODE_ENL == SVM_EXIT_SW KVM: SVM: Fix an off-by-one typo in the comment for enabling AVIC by default KVM: nVMX: Setup VMX MSRs on loading CPU during nested_vmx_hardware_setup() KVM: VMX: Add a wrapper around ROL16() to get a vmcs12 from a field encoding KVM: selftests: Test READ=>WRITE dirty logging behavior for shadow MMU KVM: x86: Drop WARN on INIT/SIPI being blocked when vCPU is in Wait-For-SIPI KVM: nVMX: Disallow access to vmcs12 fields that aren't supported by "hardware" KVM: nVMX: Remove explicit filtering of GUEST_INTR_STATUS from shadow VMCS fields KVM: VMX: Print out "bad" offsets+value on VMCS config mismatch KVM: x86: Harden against unexpected adjustments to kvm_cpu_caps Steffen Eiden (1): KVM: s390: Increase permitted SE header size to 1 MiB Vasiliy Kovalev (1): KVM: x86: Add SRCU protection for reading PDPTRs in __get_sregs2() Wu Fei (1): KVM: riscv: selftests: Add riscv vm satp modes Xiaoyao Li (1): KVM: x86: Don't read guest CR3 when doing async pf while the MMU is direct Xiong Zhang (1): KVM: x86/pmu: Register PMI handler for mediated vPMU Xu Lu (3): RISC-V: KVM: Allow Zalasr extensions for Guest/VM RISC-V: KVM: selftests: Add Zalasr extensions to get-reg-list test irqchip/riscv-imsic: Adjust the number of available guest irq files Yan Zhao (1): KVM: SVM: Fix a missing kunmap_local() in sev_gmem_post_populate() Yosry Ahmed (21): KVM: selftests: Make __vm_get_page_table_entry() static KVM: selftests: Stop passing a memslot to nested_map_memslot() KVM: selftests: Rename nested TDP mapping functions KVM: selftests: Kill eptPageTablePointer KVM: selftests: Stop setting A/D bits when creating EPT PTEs KVM: selftests: Move PTE bitmasks to kvm_mmu KVM: selftests: Use a TDP MMU to share EPT page tables between vCPUs KVM: selftests: Stop passing VMX metadata to TDP mapping functions KVM: selftests: Reuse virt mapping functions for nested EPTs KVM: selftests: Allow kvm_cpu_has_ept() to be called on AMD CPUs KVM: selftests: Add support for nested NPTs KVM: selftests: Set the user bit on nested NPT PTEs KVM: selftests: Extend vmx_dirty_log_test to cover SVM KVM: selftests: Extend memstress to run on nested SVM KVM: selftests: Use TEST_ASSERT_EQ() in test_vmx_nested_state() KVM: selftests: Extend vmx_set_nested_state_test to cover SVM KVM: selftests: Slightly simplify memstress_setup_nested() KVM: nSVM: Drop redundant/wrong comment in nested_vmcb02_prepare_save() KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation KVM: SVM: Stop toggling virtual VMSAVE/VMLOAD on intercept recalc KVM: selftests: Add a selftests for nested VMLOAD/VMSAVE Zenghui Yu (Huawei) (3): KVM: arm64: nv: Return correct RES0 bits for FGT registers KVM: arm64: nv: Add trap config for DBGWCR<15>_EL1 KVM: arm64: Fix various comments Zhao Liu (4): KVM: x86: Advertise MOVRS CPUID to userspace KVM: x86: Advertise AMX CPUIDs in subleaf 0x1E.0x1 to userspace KVM: x86: Advertise AVX10.2 CPUID to userspace KVM: x86: Advertise AVX10_VNNI_INT CPUID to userspace Documentation/admin-guide/kernel-parameters.txt | 49 + Documentation/virt/kvm/api.rst | 114 +- .../virt/kvm/x86/amd-memory-encryption.rst | 54 +- Documentation/virt/kvm/x86/intel-tdx.rst | 2 +- MAINTAINERS | 5 +- arch/arm64/include/asm/el2_setup.h | 1 - arch/arm64/include/asm/kvm_arm.h | 56 +- arch/arm64/include/asm/kvm_asm.h | 2 - arch/arm64/include/asm/kvm_emulate.h | 1 + arch/arm64/include/asm/kvm_host.h | 58 +- arch/arm64/include/asm/kvm_mmu.h | 3 +- arch/arm64/include/asm/kvm_pgtable.h | 19 +- arch/arm64/include/asm/kvm_pkvm.h | 32 +- arch/arm64/include/asm/memory.h | 11 +- arch/arm64/include/asm/pgtable-prot.h | 4 +- arch/arm64/include/asm/sysreg.h | 29 - arch/arm64/kernel/cpufeature.c | 8 +- arch/arm64/kernel/head.S | 2 +- arch/arm64/kernel/image-vars.h | 1 - arch/arm64/kvm/arch_timer.c | 18 +- arch/arm64/kvm/arm.c | 65 +- arch/arm64/kvm/config.c | 511 ++-- arch/arm64/kvm/emulate-nested.c | 103 +- arch/arm64/kvm/hyp/include/hyp/switch.h | 6 +- arch/arm64/kvm/hyp/nvhe/ffa.c | 4 +- arch/arm64/kvm/hyp/nvhe/hyp-init.S | 5 - arch/arm64/kvm/hyp/nvhe/hyp-main.c | 67 + arch/arm64/kvm/hyp/nvhe/mem_protect.c | 4 +- arch/arm64/kvm/hyp/nvhe/pkvm.c | 20 +- arch/arm64/kvm/hyp/nvhe/sys_regs.c | 39 +- arch/arm64/kvm/hyp/pgtable.c | 58 +- arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c | 2 +- arch/arm64/kvm/hyp/vgic-v3-sr.c | 69 +- arch/arm64/kvm/hyp/vhe/sysreg-sr.c | 2 +- arch/arm64/kvm/inject_fault.c | 12 +- arch/arm64/kvm/mmu.c | 32 +- arch/arm64/kvm/nested.c | 172 +- arch/arm64/kvm/sys_regs.c | 122 +- arch/arm64/kvm/sys_regs.h | 10 + arch/arm64/kvm/va_layout.c | 61 +- arch/arm64/kvm/vgic/vgic-debug.c | 108 +- arch/arm64/kvm/vgic/vgic-init.c | 8 +- arch/arm64/kvm/vgic/vgic-v3-nested.c | 10 +- arch/arm64/kvm/vgic/vgic-v3.c | 73 +- arch/arm64/kvm/vgic/vgic-v5.c | 2 + arch/arm64/kvm/vgic/vgic.h | 1 + arch/arm64/tools/sysreg | 154 +- arch/loongarch/include/asm/kvm_host.h | 9 + arch/loongarch/include/asm/kvm_para.h | 4 +- arch/loongarch/include/asm/loongarch.h | 1 + arch/loongarch/include/asm/qspinlock.h | 4 + arch/loongarch/include/uapi/asm/kvm.h | 1 + arch/loongarch/include/uapi/asm/kvm_para.h | 1 + arch/loongarch/kernel/paravirt.c | 21 +- arch/loongarch/kvm/exit.c | 21 +- arch/loongarch/kvm/intc/eiointc.c | 43 +- arch/loongarch/kvm/intc/ipi.c | 26 +- arch/loongarch/kvm/intc/pch_pic.c | 31 +- arch/loongarch/kvm/interrupt.c | 4 +- arch/loongarch/kvm/main.c | 10 +- arch/loongarch/kvm/vcpu.c | 125 +- arch/loongarch/kvm/vm.c | 39 +- arch/riscv/include/uapi/asm/kvm.h | 3 + arch/riscv/kvm/aia.c | 2 +- arch/riscv/kvm/aia_imsic.c | 13 +- arch/riscv/kvm/main.c | 2 +- arch/riscv/kvm/mmu.c | 140 ++ arch/riscv/kvm/vcpu_onereg.c | 4 + arch/riscv/kvm/vcpu_pmu.c | 5 +- arch/riscv/mm/pgtable.c | 2 + arch/s390/Kconfig | 3 - arch/s390/include/asm/dat-bits.h | 32 +- arch/s390/include/asm/gmap.h | 174 -- arch/s390/include/asm/gmap_helpers.h | 1 + arch/s390/include/asm/hugetlb.h | 6 - arch/s390/include/asm/kvm_host.h | 7 + arch/s390/include/asm/mmu.h | 13 - arch/s390/include/asm/mmu_context.h | 6 +- arch/s390/include/asm/page.h | 4 - arch/s390/include/asm/pgalloc.h | 4 - arch/s390/include/asm/pgtable.h | 171 +- arch/s390/include/asm/tlb.h | 3 - arch/s390/include/asm/uaccess.h | 70 +- arch/s390/include/asm/uv.h | 3 +- arch/s390/kernel/uv.c | 142 +- arch/s390/kvm/Kconfig | 2 + arch/s390/kvm/Makefile | 3 +- arch/s390/kvm/dat.c | 1391 +++++++++++ arch/s390/kvm/dat.h | 970 ++++++++ arch/s390/kvm/diag.c | 2 +- arch/s390/kvm/faultin.c | 148 ++ arch/s390/kvm/faultin.h | 92 + arch/s390/kvm/gaccess.c | 973 ++++---- arch/s390/kvm/gaccess.h | 20 +- arch/s390/kvm/gmap-vsie.c | 141 -- arch/s390/kvm/gmap.c | 1244 ++++++++++ arch/s390/kvm/gmap.h | 244 ++ arch/s390/kvm/intercept.c | 15 +- arch/s390/kvm/interrupt.c | 12 +- arch/s390/kvm/kvm-s390.c | 966 +++----- arch/s390/kvm/kvm-s390.h | 27 +- arch/s390/kvm/priv.c | 213 +- arch/s390/kvm/pv.c | 177 +- arch/s390/kvm/vsie.c | 202 +- arch/s390/lib/uaccess.c | 184 +- arch/s390/mm/Makefile | 1 - arch/s390/mm/fault.c | 4 +- arch/s390/mm/gmap.c | 2436 -------------------- arch/s390/mm/gmap_helpers.c | 96 +- arch/s390/mm/hugetlbpage.c | 24 - arch/s390/mm/page-states.c | 1 + arch/s390/mm/pageattr.c | 7 - arch/s390/mm/pgalloc.c | 24 - arch/s390/mm/pgtable.c | 814 +------ arch/x86/include/asm/cpufeatures.h | 2 + arch/x86/include/asm/kvm-x86-pmu-ops.h | 4 + arch/x86/include/asm/kvm_host.h | 22 + arch/x86/include/asm/msr-index.h | 1 + arch/x86/include/asm/svm.h | 9 +- arch/x86/include/asm/vmx.h | 1 + arch/x86/include/uapi/asm/kvm.h | 8 +- arch/x86/include/uapi/asm/svm.h | 32 +- arch/x86/kvm/Makefile | 49 + arch/x86/kvm/cpuid.c | 84 +- arch/x86/kvm/cpuid.h | 12 +- arch/x86/kvm/hyperv.c | 2 +- arch/x86/kvm/ioapic.c | 45 +- arch/x86/kvm/ioapic.h | 38 +- arch/x86/kvm/irq.c | 4 +- arch/x86/kvm/lapic.c | 174 +- arch/x86/kvm/lapic.h | 23 +- arch/x86/kvm/mmu/mmu.c | 11 +- arch/x86/kvm/pmu.c | 271 ++- arch/x86/kvm/pmu.h | 37 +- arch/x86/kvm/reverse_cpuid.h | 19 + arch/x86/kvm/svm/avic.c | 4 +- arch/x86/kvm/svm/hyperv.c | 7 +- arch/x86/kvm/svm/nested.c | 100 +- arch/x86/kvm/svm/pmu.c | 44 + arch/x86/kvm/svm/sev.c | 243 +- arch/x86/kvm/svm/svm.c | 170 +- arch/x86/kvm/svm/svm.h | 49 +- arch/x86/kvm/trace.h | 6 +- arch/x86/kvm/vmx/capabilities.h | 9 +- arch/x86/kvm/vmx/hyperv_evmcs.c | 2 +- arch/x86/kvm/vmx/hyperv_evmcs.h | 2 +- arch/x86/kvm/vmx/nested.c | 229 +- arch/x86/kvm/vmx/nested.h | 1 - arch/x86/kvm/vmx/pmu_intel.c | 92 +- arch/x86/kvm/vmx/pmu_intel.h | 15 + arch/x86/kvm/vmx/tdx.c | 16 +- arch/x86/kvm/vmx/vmcs.h | 9 + arch/x86/kvm/vmx/vmcs12.c | 74 +- arch/x86/kvm/vmx/vmcs12.h | 8 +- arch/x86/kvm/vmx/vmx.c | 409 +++- arch/x86/kvm/vmx/vmx.h | 18 +- arch/x86/kvm/x86.c | 158 +- arch/x86/kvm/x86.h | 16 +- arch/x86/kvm/xen.c | 2 +- drivers/irqchip/irq-gic-v5-irs.c | 2 + drivers/irqchip/irq-gic-v5.c | 10 + drivers/irqchip/irq-riscv-imsic-state.c | 12 +- include/hyperv/hvgdk.h | 2 +- include/kvm/arm_vgic.h | 4 - include/linux/irqchip/arm-gic-v5.h | 4 + include/linux/irqchip/riscv-imsic.h | 3 + include/linux/kvm_host.h | 26 +- include/uapi/linux/kvm.h | 21 + mm/khugepaged.c | 9 - tools/arch/arm64/include/asm/sysreg.h | 6 - tools/perf/Documentation/perf-arm-spe.txt | 1 - tools/testing/selftests/kvm/Makefile.kvm | 10 +- tools/testing/selftests/kvm/arm64/idreg-idst.c | 117 + tools/testing/selftests/kvm/arm64/set_id_regs.c | 1 - .../selftests/kvm/include/arm64/kvm_util_arch.h | 2 + .../selftests/kvm/include/arm64/processor.h | 4 + tools/testing/selftests/kvm/include/kvm_util.h | 44 +- .../kvm/include/loongarch/kvm_util_arch.h | 1 + .../selftests/kvm/include/riscv/kvm_util_arch.h | 1 + .../selftests/kvm/include/riscv/processor.h | 2 + .../selftests/kvm/include/s390/kvm_util_arch.h | 1 + tools/testing/selftests/kvm/include/x86/apic.h | 7 + .../selftests/kvm/include/x86/kvm_util_arch.h | 22 + .../testing/selftests/kvm/include/x86/processor.h | 65 +- tools/testing/selftests/kvm/include/x86/svm.h | 3 +- tools/testing/selftests/kvm/include/x86/svm_util.h | 9 + tools/testing/selftests/kvm/include/x86/vmx.h | 16 +- tools/testing/selftests/kvm/lib/arm64/processor.c | 47 +- tools/testing/selftests/kvm/lib/guest_modes.c | 41 +- tools/testing/selftests/kvm/lib/kvm_util.c | 63 +- .../selftests/kvm/lib/loongarch/processor.c | 28 +- tools/testing/selftests/kvm/lib/riscv/processor.c | 101 +- tools/testing/selftests/kvm/lib/s390/processor.c | 16 +- tools/testing/selftests/kvm/lib/x86/memstress.c | 65 +- tools/testing/selftests/kvm/lib/x86/processor.c | 233 +- tools/testing/selftests/kvm/lib/x86/svm.c | 27 + tools/testing/selftests/kvm/lib/x86/vmx.c | 251 +- tools/testing/selftests/kvm/riscv/get-reg-list.c | 12 + tools/testing/selftests/kvm/s390/keyop.c | 299 +++ tools/testing/selftests/kvm/steal_time.c | 96 + tools/testing/selftests/kvm/x86/hyperv_tlb_flush.c | 2 +- .../selftests/kvm/x86/nested_dirty_log_test.c | 293 +++ ...nested_state_test.c => nested_set_state_test.c} | 128 +- .../selftests/kvm/x86/nested_vmsave_vmload_test.c | 197 ++ .../kvm/x86/smaller_maxphyaddr_emulation_test.c | 4 +- .../kvm/x86/svm_nested_soft_inject_test.c | 4 +- .../selftests/kvm/x86/vmx_apicv_updates_test.c | 155 ++ .../testing/selftests/kvm/x86/vmx_dirty_log_test.c | 179 -- .../selftests/kvm/x86/vmx_nested_la57_state_test.c | 2 +- tools/testing/selftests/kvm/x86/xapic_tpr_test.c | 276 +++ virt/kvm/guest_memfd.c | 141 +- virt/kvm/kvm_main.c | 7 +- 212 files changed, 11541 insertions(+), 7834 deletions(-) delete mode 100644 arch/s390/include/asm/gmap.h create mode 100644 arch/s390/kvm/dat.c create mode 100644 arch/s390/kvm/dat.h create mode 100644 arch/s390/kvm/faultin.c create mode 100644 arch/s390/kvm/faultin.h delete mode 100644 arch/s390/kvm/gmap-vsie.c create mode 100644 arch/s390/kvm/gmap.c create mode 100644 arch/s390/kvm/gmap.h delete mode 100644 arch/s390/mm/gmap.c create mode 100644 tools/testing/selftests/kvm/arm64/idreg-idst.c create mode 100644 tools/testing/selftests/kvm/s390/keyop.c create mode 100644 tools/testing/selftests/kvm/x86/nested_dirty_log_test.c rename tools/testing/selftests/kvm/x86/{vmx_set_nested_state_test.c => nested_set_state_test.c} (70%) create mode 100644 tools/testing/selftests/kvm/x86/nested_vmsave_vmload_test.c create mode 100644 tools/testing/selftests/kvm/x86/vmx_apicv_updates_test.c delete mode 100644 tools/testing/selftests/kvm/x86/vmx_dirty_log_test.c create mode 100644 tools/testing/selftests/kvm/x86/xapic_tpr_test.c