kernel.git/tools/testing/selftests/kvm/lib/kvm_util.c, branch linux-5.10.y

KVM: selftests: Fix kvm_check_cap() assertion

2021-06-30T12:47:22Z

[ Upstream commit d8ac05ea13d789d5491a5920d70a05659015441d ] KVM_CHECK_EXTENSION ioctl can return any negative value on error, and not necessarily -1. Change the assertion to reflect that. Signed-off-by: Fuad Tabba Message-Id: <20210615150443.1183365-1-tabba@google.com> Signed-off-by: Paolo Bonzini Signed-off-by: Sasha Levin

KVM: selftests: Drop pointless vm_create wrapper

2020-11-08T11:03:36Z

Signed-off-by: Andrew Jones Message-Id: <20201104212357.171559-3-drjones@redhat.com> Signed-off-by: Paolo Bonzini

KVM: selftests: Add aarch64 get-reg-list test

2020-11-08T11:02:45Z

Check for KVM_GET_REG_LIST regressions. The blessed list was created by running on v4.15 with the --core-reg-fixup option. The following script was also used in order to annotate system registers with their names when possible. When new system registers are added the names can just be added manually using the same grep. while read reg; do if [[ ! $reg =~ ARM64_SYS_REG ]]; then printf "\t$reg\n" continue fi encoding=$(echo "$reg" | sed "s/ARM64_SYS_REG(//;s/),//") if ! name=$(grep "$encoding" ../../../../arch/arm64/include/asm/sysreg.h); then printf "\t$reg\n" continue fi name=$(echo "$name" | sed "s/.*SYS_//;s/[\t ]*sys_reg($encoding)$//") printf "\t$reg\t/* $name */\n" done < <(aarch64/get-reg-list --core-reg-fixup --list) Signed-off-by: Andrew Jones Message-Id: <20201029201703.102716-3-drjones@redhat.com> Signed-off-by: Paolo Bonzini

selftests: kvm: test enforcement of paravirtual cpuid features

2020-11-08T11:02:16Z

Add a set of tests that ensure the guest cannot access paravirtual msrs and hypercalls that have been disabled in the KVM_CPUID_FEATURES leaf. Expect a #GP in the case of msr accesses and -KVM_ENOSYS from hypercalls. Cc: Jim Mattson Signed-off-by: Oliver Upton Reviewed-by: Peter Shier Reviewed-by: Aaron Lewis Message-Id: <20201027231044.655110-7-oupton@google.com> Signed-off-by: Paolo Bonzini

selftests: kvm: Add exception handling to selftests

2020-11-08T11:02:15Z

Add the infrastructure needed to enable exception handling in selftests. This allows any of the exception and interrupt vectors to be overridden in the guest. Signed-off-by: Aaron Lewis Reviewed-by: Alexander Graf Message-Id: <20201012194716.3950330-4-aaronlewis@google.com> Signed-off-by: Paolo Bonzini

KVM: selftests: Don't require THP to run tests

2020-10-31T14:35:50Z

Unless we want to test with THP, then we shouldn't require it to be configured by the host kernel. Unfortunately, even advising with MADV_NOHUGEPAGE does require it, so check for THP first in order to avoid madvise failing with EINVAL. Signed-off-by: Andrew Jones Message-Id: <20201029201703.102716-2-drjones@redhat.com> Signed-off-by: Paolo Bonzini

KVM: selftests: Ignore KVM 5-level paging support for VM_MODE_PXXV48_4K

2020-06-09T09:54:50Z

Explicitly set the VA width to 48 bits for the x86_64-only PXXV48_4K VM mode instead of asserting the guest VA width is 48 bits. The fact that KVM supports 5-level paging is irrelevant unless the selftests opt-in to 5-level paging by setting CR4.LA57 for the guest. The overzealous assert prevents running the selftests on a kernel with 5-level paging enabled. Incorporate LA57 into the assert instead of removing the assert entirely as a sanity check of KVM's CPUID output. Fixes: 567a9f1e9deb ("KVM: selftests: Introduce VM_MODE_PXXV48_4K") Reported-by: Sergio Perez Gonzalez Cc: Adriana Cervantes Jimenez Cc: Peter Xu Signed-off-by: Sean Christopherson Message-Id: <20200528021530.28091-1-sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini

Merge branch 'kvm-amd-fixes' into HEAD

2020-05-13T16:14:05Z

KVM: selftests: Add KVM_SET_GUEST_DEBUG test

2020-05-07T10:13:42Z

Covers fundamental tests for KVM_SET_GUEST_DEBUG. It is very close to the debug test in kvm-unit-test, but doing it from outside the guest. Signed-off-by: Peter Xu Message-Id: <20200505205000.188252-4-peterx@redhat.com> Signed-off-by: Paolo Bonzini

selftests: kvm: Add vm_get_fd() in kvm_util

2020-04-15T16:08:44Z

Introduces the vm_get_fd() function in kvm_util which returns the VM file descriptor. Reviewed-by: Andrew Jones Signed-off-by: Wainer dos Santos Moschetta Signed-off-by: Sean Christopherson Message-Id: <20200410231707.7128-8-sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini