BMC/Intel-BMC/linux.git/tools/testing/selftests/kvm/aarch64, branch dev-5.15-intel

selftests: KVM: Introduce psci_cpu_on_test

2021-08-19T08:08:57+00:00

Introduce a test for aarch64 that ensures CPU resets induced by PSCI are reflected in the target vCPU's state, even if the target is never run again. This is a regression test for a race between vCPU migration and PSCI. Reviewed-by: Andrew Jones Signed-off-by: Oliver Upton Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20210818202133.1106786-5-oupton@google.com

KVM: arm64: selftests: get-reg-list: actually enable pmu regs in pmu sublist

2021-07-14T10:55:18+00:00

We reworked get-reg-list to make it easier to enable optional register sublists by parametrizing their vcpu feature flags as well as making other generalizations. That was all to make sure we enable the PMU registers when we want to test them. Somehow we forgot to actually include the PMU feature flag in the PMU sublist description though! Do that now. Fixes: 313673bad871 ("KVM: arm64: selftests: get-reg-list: Split base and pmu registers") Signed-off-by: Andrew Jones Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20210713203742.29680-3-drjones@redhat.com

Merge branch kvm-arm64/selftest/sysreg-list-fix into kvmarm-master/next

2021-06-22T07:53:56+00:00

Selftest updates from Andrew Jones, fixing the sysgreg list expectations by dealing with multiple configurations, such as with or without a PMU. * kvm-arm64/selftest/sysreg-list-fix: KVM: arm64: Update MAINTAINERS to include selftests KVM: arm64: selftests: get-reg-list: Split base and pmu registers KVM: arm64: selftests: get-reg-list: Remove get-reg-list-sve KVM: arm64: selftests: get-reg-list: Provide config selection option KVM: arm64: selftests: get-reg-list: Prepare to run multiple configs at once KVM: arm64: selftests: get-reg-list: Introduce vcpu configs

KVM: arm64: selftests: get-reg-list: Split base and pmu registers

2021-06-22T07:51:29+00:00

Since KVM commit 11663111cd49 ("KVM: arm64: Hide PMU registers from userspace when not available") the get-reg-list* tests have been failing with ... ... There are 74 missing registers. The following lines are missing registers: ... where the 74 missing registers are all PMU registers. This isn't a bug in KVM that the selftest found, even though it's true that a KVM userspace that wasn't setting the KVM_ARM_VCPU_PMU_V3 VCPU flag, but still expecting the PMU registers to be in the reg-list, would suddenly no longer have their expectations met. In that case, the expectations were wrong, though, so that KVM userspace needs to be fixed, and so does this selftest. The fix for this selftest is to pull the PMU registers out of the base register sublist into their own sublist and then create new, pmu-enabled vcpu configs which can be tested. Signed-off-by: Andrew Jones Reviewed-by: Ricardo Koller Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20210531103344.29325-6-drjones@redhat.com

KVM: arm64: selftests: get-reg-list: Remove get-reg-list-sve

2021-06-22T07:51:28+00:00

Now that we can easily run the test for multiple vcpu configs, let's merge get-reg-list and get-reg-list-sve into just get-reg-list. We also add a final change to make it more possible to run multiple tests, which is to fork the test, rather than directly run it. That allows a test to fail, but subsequent tests can still run. Signed-off-by: Andrew Jones Reviewed-by: Ricardo Koller Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20210531103344.29325-5-drjones@redhat.com

KVM: arm64: selftests: get-reg-list: Provide config selection option

2021-06-22T07:51:28+00:00

Add a new command line option that allows the user to select a specific configuration, e.g. --config=sve will give the sve config. Also provide help text and the --help/-h options. Signed-off-by: Andrew Jones Reviewed-by: Ricardo Koller Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20210531103344.29325-4-drjones@redhat.com

KVM: arm64: selftests: get-reg-list: Prepare to run multiple configs at once

2021-06-22T07:51:28+00:00

We don't want to have to create a new binary for each vcpu config, so prepare to run the test for multiple vcpu configs in a single binary. We do this by factoring out the test from main() and then looping over configs. When given '--list' we still never print more than a single reg-list for a single vcpu config though, because it would be confusing otherwise. No functional change intended. Signed-off-by: Andrew Jones Reviewed-by: Ricardo Koller Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20210531103344.29325-3-drjones@redhat.com

KVM: arm64: selftests: get-reg-list: Introduce vcpu configs

2021-06-22T07:51:28+00:00

We already break register lists into sublists that get selected based on vcpu config. However, since we only had two configs (vregs and sve), we didn't structure the code very well to manage them. Restructure it now to more cleanly handle register sublists that are dependent on the vcpu config. This patch has no intended functional change (except for the vcpu config name now being prepended to all output). Signed-off-by: Andrew Jones Reviewed-by: Ricardo Koller Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20210531103344.29325-2-drjones@redhat.com

KVM: selftests: Add aarch64/debug-exceptions test

2021-06-14T08:06:23+00:00

Covers fundamental tests for debug exceptions. The guest installs and handle its debug exceptions itself, without KVM_SET_GUEST_DEBUG. Signed-off-by: Ricardo Koller Reviewed-by: Andrew Jones Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20210611011020.3420067-7-ricarkol@google.com

KVM: selftests: vgic_init kvm selftests fixup

2021-04-07T14:50:50+00:00

Bring some improvements/rationalization over the first version of the vgic_init selftests: - ucall_init is moved in run_cpu() - vcpu_args_set is not called as not needed - whenever a helper is supposed to succeed, call the non "_" version - helpers do not return -errno, instead errno is checked by the caller - vm_gic struct is used whenever possible, as well as vm_gic_destroy - _kvm_create_device takes an addition fd parameter Signed-off-by: Eric Auger Suggested-by: Andrew Jones Reviewed-by: Andrew Jones Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20210407135937.533141-1-eric.auger@redhat.com