linux.git/tools/testing/selftests/kvm, branch v5.17

Merge tag 'kvmarm-fixes-5.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

2022-02-25T14:49:30+00:00

KVM/arm64 fixes for 5.17, take #4

- Correctly synchronise PMR and co on PSCI CPU_SUSPEND

- Skip tests that depend on GICv3 when the HW isn't available

KVM: selftests: aarch64: Skip tests if we can't create a vgic-v3

2022-02-25T13:02:28+00:00

The arch_timer and vgic_irq kselftests assume that they can create a
vgic-v3, using the library function vgic_v3_setup() which aborts with a
test failure if it is not possible to do so. Since vgic-v3 can only be
instantiated on systems where the host has GICv3 this leads to false
positives on older systems where that is not the case.

Fix this by changing vgic_v3_setup() to return an error if the vgic can't
be instantiated and have the callers skip if this happens. We could also
exit flagging a skip in vgic_v3_setup() but this would prevent future test
cases conditionally deciding which GIC to use or generally doing more
complex output.

Signed-off-by: Mark Brown 
Reviewed-by: Andrew Jones 
Tested-by: Ricardo Koller 
Signed-off-by: Marc Zyngier 
Link: https://lore.kernel.org/r/20220223131624.1830351-1-broonie@kernel.org

selftests: kvm: Remove absent target file

2022-02-11T17:53:01+00:00

There is no vmx_pi_mmio_test file. Remove it to get rid of error while
creation of selftest archive:

rsync: [sender] link_stat "/kselftest/kvm/x86_64/vmx_pi_mmio_test" failed: No such file or directory (2)
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1333) [sender=3.2.3]

Fixes: 6a58150859fd ("selftest: KVM: Add intra host migration tests")
Reported-by: "kernelci.org bot" 
Signed-off-by: Muhammad Usama Anjum 
Message-Id: <20220210172352.1317554-1-usama.anjum@collabora.com>
Signed-off-by: Paolo Bonzini

selftests: kvm: check dynamic bits against KVM_X86_XCOMP_GUEST_SUPP

2022-01-28T12:38:25+00:00

Provide coverage for the new API.

Signed-off-by: Paolo Bonzini

selftests: kvm: move vm_xsave_req_perm call to amx_test

2022-01-26T17:45:20+00:00

There is no need for tests other than amx_test to enable dynamic xsave
states.  Remove the call to vm_xsave_req_perm from generic code,
and move it inside the test.  While at it, allow customizing the bit
that is requested, so that future tests can use it differently.

Signed-off-by: Paolo Bonzini

KVM: selftests: Don't skip L2's VMCALL in SMM test for SVM guest

2022-01-26T17:15:04+00:00

Don't skip the vmcall() in l2_guest_code() prior to re-entering L2, doing
so will result in L2 running to completion, popping '0' off the stack for
RET, jumping to address '0', and ultimately dying with a triple fault
shutdown.

It's not at all obvious why the test re-enters L2 and re-executes VMCALL,
but presumably it serves a purpose.  The VMX path doesn't skip vmcall(),
and the test can't possibly have passed on SVM, so just do what VMX does.

Fixes: d951b2210c1a ("KVM: selftests: smm_test: Test SMM enter from L2")
Cc: Maxim Levitsky 
Signed-off-by: Sean Christopherson 
Message-Id: <20220125221725.2101126-1-seanjc@google.com>
Reviewed-by: Vitaly Kuznetsov 
Tested-by: Vitaly Kuznetsov 
Signed-off-by: Paolo Bonzini

KVM: selftests: Re-enable access_tracking_perf_test

2022-01-25T14:40:20+00:00

This selftest was accidentally removed by commit 6a58150859fd
("selftest: KVM: Add intra host migration tests"). Add it back.

Fixes: 6a58150859fd ("selftest: KVM: Add intra host migration tests")
Signed-off-by: David Matlack 
Message-Id: <20220120003826.2805036-1-dmatlack@google.com>
Signed-off-by: Paolo Bonzini

selftests: kvm/x86: Fix the warning in lib/x86_64/processor.c

2022-01-20T17:12:47+00:00

The following warning appears when executing
make -C tools/testing/selftests/kvm

include/x86_64/processor.h:290:2: warning: 'ecx' may be used uninitialized in this
function [-Wmaybe-uninitialized]
  asm volatile("cpuid"
  ^~~
lib/x86_64/processor.c:1523:21: note: 'ecx' was declared here
  uint32_t eax, ebx, ecx, edx, max_ext_leaf;

Just initialize ecx to remove this warning.

Fixes: c8cc43c1eae2 ("selftests: KVM: avoid failures due to reserved HyperTransport region")
Signed-off-by: Jinrong Liang 
Message-Id: <20220119140325.59369-1-cloudliang@tencent.com>
Signed-off-by: Paolo Bonzini

selftests: kvm/x86: Fix the warning in pmu_event_filter_test.c

2022-01-20T17:12:30+00:00

The following warning appears when executing
make -C tools/testing/selftests/kvm

x86_64/pmu_event_filter_test.c: In function 'vcpu_supports_intel_br_retired':
x86_64/pmu_event_filter_test.c:241:28: warning: variable 'cpuid' set but not used [-Wunused-but-set-variable]
  241 |         struct kvm_cpuid2 *cpuid;
      |                            ^~~~~
x86_64/pmu_event_filter_test.c: In function 'vcpu_supports_amd_zen_br_retired':
x86_64/pmu_event_filter_test.c:258:28: warning: variable 'cpuid' set but not used [-Wunused-but-set-variable]
  258 |         struct kvm_cpuid2 *cpuid;
      |                            ^~~~~

Just delete the unused variables to stay away from warnings.

Fixes: dc7e75b3b3ee ("selftests: kvm/x86: Add test for KVM_SET_PMU_EVENT_FILTER")
Signed-off-by: Jinrong Liang 
Message-Id: <20220119133910.56285-1-cloudliang@tencent.com>
Signed-off-by: Paolo Bonzini

kvm: selftests: Do not indent with spaces

2022-01-19T18:34:30+00:00

Some indentation with spaces crept in, likely due to terminal-based
cut and paste.  Clean it up.

Signed-off-by: Paolo Bonzini