linux-dev/tools/testing/selftests/kvm/.gitignore, branch master

Merge tag 'kvmarm-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

2022-10-03T19:33:32Z

KVM/arm64 updates for v6.1 - Fixes for single-stepping in the presence of an async exception as well as the preservation of PSTATE.SS - Better handling of AArch32 ID registers on AArch64-only systems - Fixes for the dirty-ring API, allowing it to work on architectures with relaxed memory ordering - Advertise the new kvmarm mailing list - Various minor cleanups and spelling fixes

KVM: selftests: Add an x86-only test to verify nested exception queueing

2022-09-26T16:03:12Z

Add a test to verify that KVM_{G,S}ET_EVENTS play nice with pending vs. injected exceptions when an exception is being queued for L2, and that KVM correctly handles L1's exception intercept wants. Signed-off-by: Sean Christopherson Reviewed-by: Maxim Levitsky Link: https://lore.kernel.org/r/20220830231614.3580124-27-seanjc@google.com Signed-off-by: Paolo Bonzini

KVM: selftests: Add test for AArch32 ID registers

2022-09-14T10:36:16Z

Add a test to assert that KVM handles the AArch64 views of the AArch32 ID registers as RAZ/WI (writable only from userspace). For registers that were already hidden or unallocated, expect RAZ + invariant behavior. Signed-off-by: Oliver Upton Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20220913094441.3957645-8-oliver.upton@linux.dev

KVM: selftests: Verify VMX MSRs can be restored to KVM-supported values

2022-07-28T17:25:24Z

Verify that KVM allows toggling VMX MSR bits to be "more" restrictive, and also allows restoring each MSR to KVM's original, less restrictive value. Signed-off-by: Sean Christopherson Message-Id: <20220607213604.3346000-16-seanjc@google.com> Signed-off-by: Paolo Bonzini

KVM: selftests: Remove the obsolete/dead MMU role test

2022-07-14T01:14:13Z

Remove the MMU role test, which was made obsolete by KVM commit feb627e8d6f6 ("KVM: x86: Forbid KVM_SET_CPUID{,2} after KVM_RUN"). The ongoing costs of keeping the test updated far outweigh any benefits, e.g. the test _might_ be useful as an example or for documentation purposes, but otherwise the test is dead weight. Signed-off-by: Sean Christopherson Link: https://lore.kernel.org/r/20220614200707.3315957-14-seanjc@google.com

KVM: selftests: Add a self test for CMCI and UCNA emulations.

2022-06-24T08:52:04Z

This patch add a self test that verifies user space can inject UnCorrectable No Action required (UCNA) memory errors to the guest. It also verifies that incorrectly configured MSRs for Corrected Machine Check Interrupt (CMCI) emulation will result in #GP. Signed-off-by: Jue Wang Signed-off-by: Paolo Bonzini Message-Id: <20220610171134.772566-9-juew@google.com> Signed-off-by: Paolo Bonzini

KVM: selftests: Add NX huge pages test

2022-06-24T08:51:50Z

There's currently no test coverage of NX hugepages in KVM selftests, so add a basic test to ensure that the feature works as intended. The test creates a VM with a data slot backed with huge pages. The memory in the data slot is filled with op-codes for the return instruction. The guest then executes a series of accesses on the memory, some reads, some instruction fetches. After each operation, the guest exits and the test performs some checks on the backing page counts to ensure that NX page splitting an reclaim work as expected. Reviewed-by: David Matlack Signed-off-by: Ben Gardon Message-Id: <20220613212523.3436117-7-bgardon@google.com> Signed-off-by: Paolo Bonzini

KVM: selftests: Add MONITOR/MWAIT quirk test

2022-06-22T19:14:20Z

Add a test to verify the "MONITOR/MWAIT never fault" quirk, and as a bonus, also verify the related "MISC_ENABLES ignores ENABLE_MWAIT" quirk. If the "never fault" quirk is enabled, MONITOR/MWAIT should always be emulated as NOPs, even if they're reported as disabled in guest CPUID. Use the MISC_ENABLES quirk to coerce KVM into toggling the MWAIT CPUID enable, as KVM now disallows manually toggling CPUID bits after running the vCPU. Signed-off-by: Sean Christopherson Message-Id: <20220608224516.3788274-6-seanjc@google.com> Signed-off-by: Paolo Bonzini

KVM: selftests: Add a test to get/set triple fault event

2022-06-08T09:21:13Z

Add a selftest for triple fault event: - launch the L2 and exit to userspace via I/O. - using KVM_SET_VCPU_EVENTS to pend a triple fault event. - with the immediate_exit, check the triple fault is pending. - run for real with pending triple fault and L1 can see the triple fault. Suggested-by: Sean Christopherson Signed-off-by: Chenyi Qiang Message-Id: <20220524135624.22988-3-chenyi.qiang@intel.com> Signed-off-by: Paolo Bonzini

kvm: selftests: Add KVM_CAP_MAX_VCPU_ID cap test

2022-06-08T08:47:34Z

Basic test coverage of KVM_CAP_MAX_VCPU_ID cap. This capability can be enabled before vCPU creation and only allowed to set once. if assigned vcpu id is beyond KVM_CAP_MAX_VCPU_ID capability, vCPU creation will fail. Signed-off-by: Zeng Guang Message-Id: <20220422134456.26655-1-guang.zeng@intel.com> Signed-off-by: Paolo Bonzini