kernel/linux.git/tools/testing/selftests/kvm/include, branch v7.2-rc1

Merge tag 'kvm-s390-next-7.2-2' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD

2026-06-24T11:41:41+00:00

* Fix S390_USER_OPEREXEC so it can now be enabled regardless of other unrelated capabilities * Fix handling of the _PAGE_UNUSED pte bit that could lead to guest memory corruption in some scenarios * A bunch of misc gmap fixes (locking, behaviour under memory pressure) * Fix CMMA dirty tracking

KVM: s390: selftests: Extended user_operexec tests

2026-06-24T08:01:56+00:00

There is a possibility that the user_operexec capability only works if facility bit 74 is enabled. This is now fixed, but add a selftest to demonstrate that. Signed-off-by: Eric Farman Acked-by: Janosch Frank Reviewed-by: Claudio Imbrenda Signed-off-by: Claudio Imbrenda Message-ID: <20260507200836.3500368-3-farman@linux.ibm.com>

KVM: selftests: access_tracking_perf_test: bump number of NUMA nodes to 32

2026-06-12T20:17:51+00:00

It's rare to find a system that has more than 4 sockets, but a system can have more than 4 NUMA nodes if each socket exposes its chiplets as separate NUMA nodes. In particular, our CI caught a failure in this test on a system with two sockets, each containing an 'AMD EPYC 7601 32-Core Processor'. Bump the limit to 32, just in case. Signed-off-by: Maxim Levitsky Message-ID: <20260612150038.1277394-1-mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini

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.

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

2026-06-12T08:12:22+00:00

KVM selftests changes for 7.2 - Randomize the dirty log test's delay when reaping the bitmap on the first pass, as always waiting only 1ms hid a KVM RISC-V bug as the test reaped the bitmap before KVM could build up enough state to hit the bug. - A pile of one-off fixes and cleanups.

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

2026-06-12T08:11:09+00:00

KVM misc x86 changes for 7.2 - Handle EXIT_FASTPATH_EXIT_USERSPACE in vendor code to ensure vendor code gets a chance to handle things like reaping the PML buffer. - Ensure KVM's copy of CR0 and CR3 are up-to-date on SVM prior to invoking fastpath handlers. - Update KVM's view of PV async enabling if and only if the MSR write fully succeeds. - Fix a variety of issues where the emulator doesn't honor guest-debug state, and clean up related code along the way. - Synthesize EPT Violation and #NPF "error code" bits when injecting faults into L1 that didn't originate in hardware (in which case the VMCS/VMCB doesn't hold relevant information). - Add support for virtualizing (well, emulating) AMD's flavor of CPL>0 CPUID faulting. - Clean up the GPR APIs so that KVM's use of "raw" is consistent, and fix a variety of minor bugs along the way. - Fix an OOB memory access due to not checking the VP ID when handling a Hyper-V PV TLB flush for L2. - Fix a bug in the mediated PMU's handling of fixed counters that allowed the guest to bypass the PMU event filter. - Allow userspace to return EAGAIN when handling SNP and TDX hypercalls, so the KVM can forward a "retry" status code to the guest, and reserve all unused error codes for future usage. - Misc fixes and cleanups.

KVM: selftests: Update hwcr_msr_test for CPUID faulting bit

2026-05-27T18:21:41+00:00

Add BIT_ULL(35) (CpuidUserDis) to the valid mask in hwcr_msr_test, now that KVM accepts writes to this bit when the guest CPUID advertises CpuidUserDis. Signed-off-by: Jim Mattson Link: https://patch.msgid.link/20260527174347.2356165-6-jmattson@google.com Signed-off-by: Sean Christopherson

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 and use kvm_free_fd() to harden against fd goofs

2026-05-26T19:24:13+00:00

Add a kvm_free_fd() macro to close and invalidate a file descriptor, and use it through the core infrastructure to harden against goofs where a selftest attempts to reuse a closed file descriptor. Cc: Bibo Mao Cc: Fuad Tabba Cc: Ackerley Tng Reviewed-by: Ackerley Tng Link: https://patch.msgid.link/20260522171535.3525890-3-seanjc@google.com Signed-off-by: Sean Christopherson

KVM: selftests: Fix vcpu_get_stats_fd() ioctl name

2026-05-22T14:08:21+00:00

vcpu_get_stats_fd() invokes KVM_GET_STATS_FD, but its assertion reports KVM_CHECK_EXTENSION if the ioctl fails. Use KVM_GET_STATS_FD in the assertion so failures point at the ioctl that actually failed. Fixes: 1b78d474ce4e ("KVM: selftests: Add logic to detect if ioctl() failed because VM was killed") Signed-off-by: Zongyao Chen Link: https://patch.msgid.link/20260518071008.2091335-1-ZongYao.Chen@linux.alibaba.com Signed-off-by: Sean Christopherson