kernel/linux.git/tools/testing/selftests/kvm/Makefile.kvm, branch v7.2-rc5

Merge tag 'kvmarm-fixes-7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

2026-07-15T10:13:30+00:00

KVM/arm64 fixes for 7.2, take #2 - Move locking for kvm_io_bus_get_dev() into the caller, ensuring race-free checks that the returned object is of the correct type - Fix initialisation of the page-table walk level when relaxing permissions - Correctly update the XN attribute when relaxing permissions - Fix the sign extension of loads from emulated MMIO regions - Assorted collection of fixes for pKVM's FFA proxy, together with a couple of FFA driver adjustments

KVM: arm64: selftests: Add MMIO sign-extending load test

2026-07-06T16:18:34+00:00

Add a test for sign-extending MMIO loads (LDRSB, LDRSH, LDRSW) into Xt and Wt destinations, with and without the sign bit set. The host supplies the MMIO data and checks the guest register holds the sign-extended value. Repeat the loads big-endian on a mixed-endian implementation. Issue those at EL0: SCTLR_EL1.EE would make an EL1 load big-endian but also walk the little-endian page tables big-endian, whereas SCTLR_EL1.E0E selects only EL0 data endianness and leaves the walk little-endian. Signed-off-by: Fuad Tabba Link: https://patch.msgid.link/20260706115522.954913-3-fuad.tabba@linux.dev Signed-off-by: Marc Zyngier

Merge tag 'kvm-s390-next-7.2-1' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD

2026-06-15T13:36:43+00:00

KVM: s390: New features for 7.2 New features for 7.2 for KVM/s390: * KVM_PRE_FAULT_MEMORY support * Support for 2G hugepages * Support for the ASTFLEIE 2 facility * kvm_arch_set_irq_inatomic Fast Inject * Fix potential leak of uninitialized bytes

Merge tag 'kvm-x86-svm-7.2' of https://github.com/kvm-x86/linux into HEAD

2026-06-12T08:16:59+00:00

KVM SVM changes for 7.2 - Add support for virtualizing gPAT (KVM previously just used L1's PAT when running L2). - Fix goofs where KVM mishandles side effects (e.g. single-step and PMC updates) when emulating VMRUN. - Fix a variety of bugs in AVIC's handling of x2APIC MSR interception, most notably where KVM didn't disable interception of IRR, ISR, and TMR regs. - Add support for virtualizing Host-Only/Guest-Only bits in the mediated PMU.

Merge tag 'kvm-x86-sev-7.2' of https://github.com/kvm-x86/linux into HEAD

2026-06-12T08:13:03+00:00

KVM SEV changes for 7.2 - Don't advertise support for unusuable VM types, and account for VM types that are disabled by firmware, e.g. to mitigate security vulnerabilities. - Rewrite the SEV {en,de}crypt debug ioctls as they were riddle with bugs and unnecessarily complicated, and add comprehensive tests. - Clean up and deduplicate the SEV page pinning code. - Fix minor goofs related to writing back CPUID information after firmware rejects a CPUID page for an SNP vCPU.

KVM: selftests: Add a test for gPAT handling in L2

2026-06-03T12:42:35+00:00

When KVM_X86_QUIRK_NESTED_SVM_SHARED_PAT is disabled, verify that KVM correctly virtualizes the host PAT MSR and the guest PAT register for nested SVM guests. With nested NPT disabled: * L1 and L2 share the same PAT * The vmcb12.g_pat is ignored With nested NPT enabled: * An invalid g_pat in vmcb12 causes VMEXIT_INVALID * RDMSR(IA32_PAT) from L2 returns the value of the guest PAT register * WRMSR(IA32_PAT) from L2 is reflected in vmcb12's g_pat on VMEXIT * RDMSR(IA32_PAT) from L1 returns the value of the host PAT MSR Verify that save/restore with the vCPU in guest mode behaves as expected in both cases, e.g. preserves both hPAT and gPAT when NPT is enabled. Originally-by: Jim Mattson Signed-off-by: Yosry Ahmed [sean: use even fancier macro shenanigans] Link: https://patch.msgid.link/20260528231052.404737-1-seanjc@google.com [sean: avoid use of goto, print skips] Signed-off-by: Sean Christopherson

KVM: selftests: Enable pre_fault_memory_test for s390

2026-05-28T11:05:53+00:00

Enable the pre_fault_memory_test to run on s390. Reviewed-by: Steffen Eiden Signed-off-by: Claudio Imbrenda Message-ID: <20260527144358.186359-6-imbrenda@linux.ibm.com>

KVM: selftests: Add nested page fault injection test

2026-05-26T21:54:21+00:00

Add a test that exercises nested page fault injection during L2 execution. L2 executes I/O string instructions (OUTSB/INSB) that access memory restricted in L1's nested page tables (NPT/EPT), triggering a nested page fault that L0 must inject to L1. The test supports both AMD SVM (NPF) and Intel VMX (EPT violation) and verifies that: - The exit reason is an NPF/EPT violation - The access type and permission bits are correct - The faulting GPA is correct Three test cases are implemented: - Unmap the final data page (final translation fault, OUTSB read) - Unmap a PT page (page walk fault, OUTSB read) - Write-protect the final data page (protection violation, INSB write) - Write-protect a PT page (protection violation on A/D update, OUTSB read) Signed-off-by: Kevin Cheng [sean: name it nested_tdp_fault_test, consolidate asserts] Link: https://patch.msgid.link/20260522232701.3671446-6-seanjc@google.com Signed-off-by: Sean Christopherson

KVM: selftests: Add a test to verify SEV {en,de}crypt debug ioctls

2026-05-13T22:03:16+00:00

Add a selftest to verify KVM's handling of {de,en}crypt debug ioctls, specifically focusing on edge cases around the chunk (16 bytes) and page (4096) sizes, where KVM had multiple bugs. E.g. KVM would fail to handle small sizes that aren't naturally aligned and sized, would buffer overflow if the destination was unaligned but the source was not, etc. Attempt to strike a balance between an exhaustive test and a reasonable runtime. On a system with both SEV and SEV-ES support, the current runtime is under 45 seconds. Which isn't great, but it's tolerable, and it's not obvious which of the combinations are "better" than the others. Link: https://patch.msgid.link/20260501203537.2120074-3-seanjc@google.com Signed-off-by: Sean Christopherson

Merge tag 'kvm-s390-next-7.1-1' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD

2026-04-13T17:01:15+00:00

- ESA nesting support - 4k memslots - LPSW/E fix