linux-dev/tools/testing/selftests/kvm/x86_64/hyperv_features.c, branch linus/master

KVM: selftests: Avoid KVM_SET_CPUID2 after KVM_RUN in hyperv_features test

2021-11-26T13:14:19Z

hyperv_features's sole purpose is to test access to various Hyper-V MSRs and hypercalls with different CPUID data. As KVM_SET_CPUID2 after KVM_RUN is deprecated and soon-to-be forbidden, avoid it by re-creating test VM for each sub-test. Signed-off-by: Vitaly Kuznetsov Message-Id: <20211122175818.608220-2-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini

KVM: selftests: Test access to XMM fast hypercalls

2021-08-03T10:16:40Z

Check that #UD is raised if bit 16 is clear in HYPERV_CPUID_FEATURES.EDX and an 'XMM fast' hypercall is issued. Signed-off-by: Vitaly Kuznetsov Reviewed-by: Siddharth Chandrasekaran Signed-off-by: Paolo Bonzini Message-Id: <20210730122625.112848-5-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini

KVM: selftests: x86: Address missing vm_install_exception_handler conversions

2021-07-14T16:15:05Z

Commit b78f4a59669 ("KVM: selftests: Rename vm_handle_exception") raced with a couple of new x86 tests, missing two vm_handle_exception to vm_install_exception_handler conversions. Help the two broken tests to catch up with the new world. Cc: Andrew Jones CC: Ricardo Koller Cc: Paolo Bonzini Signed-off-by: Marc Zyngier Message-Id: <20210701071928.2971053-1-maz@kernel.org> Reviewed-by: Andrew Jones Reviewed-by: Ricardo Koller Signed-off-by: Paolo Bonzini

KVM: selftests: Add helpers to allocate N pages of virtual memory

2021-06-24T08:31:18Z

Add wrappers to allocate 1 and N pages of memory using de facto standard values as the defaults for minimum virtual address, data memslot, and page table memslot. Convert all compatible users. No functional change intended. Signed-off-by: Sean Christopherson Message-Id: <20210622200529.3650424-7-seanjc@google.com> Signed-off-by: Paolo Bonzini

KVM: selftests: Use "standard" min virtual address for Hyper-V pages

2021-06-24T08:31:18Z

Use the de facto standard minimum virtual address for Hyper-V's hcall params page. It's the allocator's job to not double-allocate memory, i.e. there's no reason to force different regions for the params vs. hcall page. This will allow adding a page allocation helper with a "standard" minimum address. Signed-off-by: Sean Christopherson Message-Id: <20210622200529.3650424-6-seanjc@google.com> Signed-off-by: Paolo Bonzini

KVM: selftests: Zero out the correct page in the Hyper-V features test

2021-06-24T08:31:17Z

Fix an apparent copy-paste goof in hyperv_features where hcall_page (which is two pages, so technically just the first page) gets zeroed twice, and hcall_params gets zeroed none times. Signed-off-by: Sean Christopherson Message-Id: <20210622200529.3650424-3-seanjc@google.com> Signed-off-by: Paolo Bonzini

KVM: selftests: Introduce hyperv_features test

2021-06-17T17:09:46Z

The initial implementation of the test only tests that access to Hyper-V MSRs and hypercalls is in compliance with guest visible CPUID feature bits. Signed-off-by: Vitaly Kuznetsov Signed-off-by: Paolo Bonzini Message-Id: <20210521095204.2161214-31-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini