Changes in svm_util.h

06bc7ff0a1e0f2b0102e1314e3527a7ec0997851 - Merge tag 'asoc-fix-v7.1-rc2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

Wed, 06 May 2026 16:10:00 +0200

Merge tag 'asoc-fix-v7.1-rc2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linusASoC: Fixes for v7.1Another batch of fixes, plus a couple of quirks (mostly AMD ones, as hasbeen the case recently). All driver changes, including fixes for theKUnit tests for the Cirrus drivers that could cause memory corruption. List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h

57b8e2d666a31fa201432d58f5fe3469a0dd83ba - Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Wed, 29 Apr 2026 15:56:50 +0200

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmPull kvm updates from Paolo Bonzini: "On top of a lot of Arm fixes, this includes a massive rename of types and variables in tools/testing/selftests/kvm - these were unnecessarily different from what the kernel uses, so they're being made consistent. arm64: - Allow tracing for non-pKVM, which was accidentally disabled when the series was merged - Rationalise the way the pKVM hypercall ranges are defined by using the same mechanism as already used for the vcpu_sysreg enum - Enforce that SMCCC function numbers relayed by the pKVM proxy are actually compliant with the specification - Fix a couple of feature to idreg mappings which resulted in the wrong sanitisation being applied - Fix the GICD_IIDR revision number field that could never been written correctly by userspace - Make kvm_vcpu_initialized() correctly use its parameter instead of relying on the surrounding context - Enforce correct ordering in __pkvm_init_vcpu(), plugging a potential pin leak at the same time - Move __pkvm_init_finalise() to a less dangerous spot, avoiding future problems - Restore functional userspace irqchip support after a four year breakage (last functional kernel was 5.18...) - Spelling fixes Selftests: - Rename types across all KVM selftests to more closely align with types used in the kernel: vm_vaddr_t -> gva_t vm_paddr_t -> gpa_t uint64_t -> u64 uint32_t -> u32 uint16_t -> u16 uint8_t -> u8 int64_t -> s64 int32_t -> s32 int16_t -> s16 int8_t -> s8 - Fix Loongarch compilation"* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (31 commits) KVM: selftests: Add check_steal_time_uapi() implementation for LoongArch KVM: arm64: Wake-up from WFI when iqrchip is in userspace KVM: arm64: Fix initialisation order in __pkvm_init_finalise() KVM: arm64: Fix pin leak and publication ordering in __pkvm_init_vcpu() KVM: arm64: Fix kvm_vcpu_initialized() macro parameter KVM: arm64: Fix FEAT_SPE_FnE to use PMSIDR_EL1.FnE, not PMSVer KVM: arm64: Fix typo in feature check comments KVM: arm64: Fix FEAT_Debugv8p9 to check DebugVer, not PMUVer KVM: arm64: Reject non compliant SMCCC function calls in pKVM KVM: arm64: vgic: Fix IIDR revision field extracted from wrong value KVM: selftests: Replace "paddr" with "gpa" throughout KVM: selftests: Replace "u64 nested_paddr" with "gpa_t l2_gpa" KVM: selftests: Replace "u64 gpa" with "gpa_t" throughout KVM: selftests: Replace "vaddr" with "gva" throughout KVM: selftests: Clarify that arm64's inject_uer() takes a host PA, not a guest PA KVM: selftests: Rename translate_to_host_paddr() => translate_hva_to_hpa() KVM: selftests: Rename vm_vaddr_populate_bitmap() => vm_populate_gva_bitmap() KVM: selftests: Rename vm_vaddr_unused_gap() => vm_unused_gva_gap() KVM: selftests: Drop "vaddr_" from APIs that allocate memory for a given VM KVM: selftests: Use u8 instead of uint8_t ... List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h

39f1c201b93f4ff71631bac72cff6eb155f976a4 - Merge tag 'kvm-x86-selftests_kernel_types-7.1' of https://github.com/kvm-x86/linux into HEAD

Mon, 27 Apr 2026 10:24:41 +0200

Merge tag 'kvm-x86-selftests_kernel_types-7.1' of https://github.com/kvm-x86/linux into HEADKVM selftests type renames for 7.1Renames types across all KVM selftests to more closely align with types usedin the kernel: vm_vaddr_t -> gva_t vm_paddr_t -> gpa_t uint64_t -> u64 uint32_t -> u32 uint16_t -> u16 uint8_t -> u8 int64_t -> s64 int32_t -> s32 int16_t -> s16 int8_t -> s8Using the kernel's preferred types eliminates a source of friction for manycontributors, as the majority of KVM selftests contributions come from kerneldevelopers. The kernel names are also shorter, which allows for more concisecode, and in any many cases eliminates newlines thanks to shorter types andparameter names.Rename variables and parameters as well as types, e.g. gpa instead of paddr,to again align with the kernel, and in a few cases to remove ambiguity, e.g.where paddr is used to refer to a _host_ physical address. List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h

26f8453288d4c1fb8c96802eae15ddc988f5e068 - KVM: selftests: Use u64 instead of uint64_t

Mon, 20 Apr 2026 23:19:49 +0200

KVM: selftests: Use u64 instead of uint64_tUse u64 instead of uint64_t to make the KVM selftests code more conciseand more similar to the kernel (since selftests are primarily developedby kernel developers).This commit was generated with the following command: git ls-files tools/testing/selftests/kvm | xargs sed -i 's/uint64_t/u64/g'Then by manually adjusting whitespace to make checkpatch.pl happy.Include in include/kvm_util_types.h, iinclude/test_util.h,and include/x86/pmu.h to pick up the tools-defined u64. Arguably, allheaders (especially kvm_util_types.h) should have already been includingstdint.h to get uint64_t from the libc headers, but the missing dependencyonly rears its head once KVM uses u64 instead of uint64_t.No functional change intended.Signed-off-by: David Matlack [sean: rename pread_uint64() => pread_u64, expand on types.h include]Link: https://patch.msgid.link/20260420212004.3938325-5-seanjc@google.comSigned-off-by: Sean Christopherson List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h

5567fc9dcd7ed46678cd68e6ca0662331d42f0ac - KVM: selftests: Use gva_t instead of vm_vaddr_t

Mon, 20 Apr 2026 23:19:46 +0200

KVM: selftests: Use gva_t instead of vm_vaddr_tReplace all occurrences of vm_vaddr_t with gva_t to align with KVM codeand with the conversion helpers (e.g. addr_gva2hva()).This commit was generated with the following command: git ls-files tools/testing/selftests/kvm | xargs sed -i 's/vm_vaddr_/gva_/g'Then by manually adjusting whitespace to make checkpatch.pl happy, anddropping renames of functions that allocate memory within a given VM.No functional change intended.Signed-off-by: David Matlack [sean: drop renames of allocator APIs]Link: https://patch.msgid.link/20260420212004.3938325-2-seanjc@google.comSigned-off-by: Sean Christopherson List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h

f4b369c6fe0ceaba2da2daff8c9eb415f85926dd - Merge branch 'next' into for-linus

Mon, 20 Apr 2026 03:28:57 +0200

Merge branch 'next' into for-linusPrepare input updates for 7.1 merge window. List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h

0421ccdfad0d92713a812a5aeb7d07b0ea7213c8 - Merge tag 'v7.0-rc3' into next

Thu, 12 Mar 2026 18:44:42 +0100

Merge tag 'v7.0-rc3' into nextSync up with the mainline to brig up the latest changes, specificallychanges to ALPS driver. List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h

3e9e952bb3139ad1e08f3e1960239c2988ab90c9 - Merge branch 'for-7.1-printf-kunit-build' into for-linus

Mon, 20 Apr 2026 13:41:28 +0200

Merge branch 'for-7.1-printf-kunit-build' into for-linus List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h

42d3b66d4cdbacfc9d120d2301b8de89cc29a914 - Merge drm/drm-next into drm-xe-next

Thu, 12 Mar 2026 15:17:56 +0100

Merge drm/drm-next into drm-xe-nextBackmerging to bring in 7.00-rc3. Important ahead GPU SVM merging THPsupport.Signed-off-by: Matthew Brost List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h

f09812b85fa6f41058bcc46e70ac406bf9b0493a - Merge drm/drm-next into drm-intel-next

Wed, 25 Feb 2026 12:23:04 +0100

Merge drm/drm-next into drm-intel-nextSync with v7.0-rc1 which contains a few treewide changes affecting i915.Signed-off-by: Jani Nikula List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h

8b85987d3cf50178f67618122d9f3bb202f62f42 - Merge drm/drm-next into drm-misc-next

Mon, 23 Feb 2026 11:48:20 +0100

Merge drm/drm-next into drm-misc-nextLet's merge 7.0-rc1 to start the new drm-misc-next windowSigned-off-by: Maxime Ripard List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h

c17ee635fd3a482b2ad2bf5e269755c2eae5f25e - Merge drm/drm-fixes into drm-misc-fixes

Mon, 23 Feb 2026 10:09:45 +0100

Merge drm/drm-fixes into drm-misc-fixes7.0-rc1 was just released, let's merge it to kick the new release cycle.Signed-off-by: Maxime Ripard List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h

cb5573868ea85ddbc74dd9a917acd1e434d21390 - Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Fri, 13 Feb 2026 20:31:15 +0100

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmPull KVM updates from Paolo Bonzini: "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' ...") - 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"* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (267 commits) KVM: s390: Increase permitted SE header size to 1 MiB MAINTAINERS: Replace backup for s390 vfio-pci KVM: s390: vsie: Fix race in acquire_gmap_shadow() KVM: s390: vsie: Fix race in walk_guest_tables() KVM: s390: Use guest address to mark guest page dirty irqchip/riscv-imsic: Adjust the number of available guest irq files RISC-V: KVM: Transparent huge page support RISC-V: KVM: selftests: Add Zalasr extensions to get-reg-list test RISC-V: KVM: Allow Zalasr extensions for Guest/VM KVM: riscv: selftests: Add riscv vm satp modes KVM: riscv: selftests: add Zilsd and Zclsd extension to get-reg-list test riscv: KVM: allow Zilsd and Zclsd extensions for Guest/VM RISC-V: KVM: Skip IMSIC update if vCPU IMSIC state is not initialized RISC-V: KVM: Fix null pointer dereference in kvm_riscv_aia_imsic_rw_attr() RISC-V: KVM: Fix null pointer dereference in kvm_riscv_aia_imsic_has_attr() RISC-V: KVM: Remove unnecessary 'ret' assignment KVM: s390: Add explicit padding to struct kvm_s390_keyop KVM: LoongArch: selftests: Add steal time test case LoongArch: KVM: Add paravirt vcpu_is_preempted() support in guest side LoongArch: KVM: Add paravirt preempt feature in hypervisor side ... List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h

a0c468eda4386c67082973d21d811fd777a798ed - Merge tag 'kvm-x86-selftests-6.20' of https://github.com/kvm-x86/linux into HEAD

Mon, 09 Feb 2026 18:38:54 +0100

Merge tag 'kvm-x86-selftests-6.20' of https://github.com/kvm-x86/linux into HEADKVM selftests changes for 6.20 - 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. List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h

753c0d5a507b939d6efc60c7b437d5330880cce3 - KVM: selftests: Add support for nested NPTs

Wed, 31 Dec 2025 00:01:45 +0100

KVM: selftests: Add support for nested NPTsImplement nCR3 and NPT initialization functions, similar to the EPTequivalents, and create common TDP helpers for enablement checking andinitialization. Enable NPT for nested guests by default if the TDP MMUwas initialized, similar to VMX.Reuse the PTE masks from the main MMU in the NPT MMU, except for the Cand S bits related to confidential VMs.Signed-off-by: Yosry Ahmed Link: https://patch.msgid.link/20251230230150.4150236-17-seanjc@google.com[sean: apply Yosry's fixup for ncr3_gpa]Signed-off-by: Sean Christopherson List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h

1260ed77798502de9c98020040d2995008de10cc - Merge drm/drm-fixes into drm-misc-fixes

Tue, 08 Apr 2025 10:15:47 +0200

Merge drm/drm-fixes into drm-misc-fixesBackmerging to get updates from v6.15-rc1.Signed-off-by: Thomas Zimmermann List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h

946661e3bef8efa11ba8079d4ebafe6fc3b0aaad - Merge branch 'next' into for-linus

Sat, 05 Apr 2025 08:04:35 +0200

Merge branch 'next' into for-linusPrepare input updates for 6.15 merge window. List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h

0b119045b79a672bc6d8f18641c60fc8ce1b4585 - Merge tag 'v6.14-rc4' into next

Wed, 26 Feb 2025 01:03:25 +0100

Merge tag 'v6.14-rc4' into nextSync up with the mainline. List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h

9e676a024fa1fa2bd8150c2d2ba85478280353bc - Merge tag 'v6.14-rc1' into perf-tools-next

Wed, 05 Feb 2025 23:57:18 +0100

Merge tag 'v6.14-rc1' into perf-tools-nextTo get the various fixes in the current master.Signed-off-by: Namhyung Kim List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h

0410c6121529409b08e81a77ae3ee58c657e2243 - Merge drm/drm-next into drm-xe-next

Fri, 28 Feb 2025 15:54:14 +0100

Merge drm/drm-next into drm-xe-nextSync to fix conlicts between drm-xe-next and drm-intel-next.Signed-off-by: Lucas De Marchi List of files: /linux/tools/testing/selftests/kvm/include/x86/svm_util.h