linux.git/tools/testing/selftests/kvm/include, branch v5.7-rc2

KVM: selftests: Rework timespec functions and usage

2020-03-18T13:08:56+00:00

The steal_time test's timespec stop condition was wrong and should have
used the timespec functions instead to avoid being wrong, but
timespec_diff had a strange interface. Rework all the timespec API and
its use.

Signed-off-by: Andrew Jones 
Signed-off-by: Paolo Bonzini

KVM: selftests: define and use EVMCS_VERSION

2020-03-16T17:19:31+00:00

KVM allows to use revision_id from MSR_IA32_VMX_BASIC as eVMCS revision_id
to workaround a bug in genuine Hyper-V (see the comment in
nested_vmx_handle_enlightened_vmptrld()), this shouldn't be used by
default. Switch to using KVM_EVMCS_VERSION(1).

Signed-off-by: Vitaly Kuznetsov 
Signed-off-by: Paolo Bonzini

selftests: kvm: Introduce the TEST_FAIL macro

2020-03-16T16:59:10+00:00

Some tests/utilities use the TEST_ASSERT(false, ...) pattern to
indicate a failure and stop execution.

This change introduces the TEST_FAIL macro which is a wrap around
TEST_ASSERT(false, ...) and so provides a direct alternative for
failing a test.

Signed-off-by: Wainer dos Santos Moschetta 
Signed-off-by: Paolo Bonzini

KVM: selftests: Introduce steal-time test

2020-03-16T16:59:07+00:00

The steal-time test confirms what is reported to the guest as stolen
time is consistent with the run_delay reported for the VCPU thread
on the host. Both x86_64 and AArch64 have the concept of steal/stolen
time so this test is introduced for both architectures.

While adding the test we ensure .gitignore has all tests listed
(it was missing s390x/resets) and that the Makefile has all tests
listed in alphabetical order (not really necessary, but it almost
was already...). We also extend the common API with a new num-guest-
pages call and a new timespec call.

Signed-off-by: Andrew Jones 
Signed-off-by: Paolo Bonzini

KVM: selftests: virt_map should take npages, not size

2020-03-16T16:59:06+00:00

Also correct the comment and prototype for vm_create_default(),
as it takes a number of pages, not a size.

Signed-off-by: Andrew Jones 
Signed-off-by: Paolo Bonzini

KVM: selftests: Use consistent message for test skipping

2020-03-16T16:59:05+00:00

Signed-off-by: Andrew Jones 
Signed-off-by: Paolo Bonzini

KVM: selftests: Enable printf format warnings for TEST_ASSERT

2020-03-16T16:59:04+00:00

Use the format attribute to enable printf format warnings, and
then fix them all.

Signed-off-by: Andrew Jones 
Signed-off-by: Paolo Bonzini

KVM: selftests: Share common API documentation

2020-03-16T16:59:02+00:00

Move function documentation comment blocks to the header files in
order to avoid duplicating them for each architecture. While at
it clean up and fix up the comment blocks.

Signed-off-by: Andrew Jones 
Signed-off-by: Paolo Bonzini

KVM: selftests: s390x: Provide additional num-guest-pages adjustment

2020-03-16T16:58:57+00:00

s390 requires 1M aligned guest sizes. Embedding the rounding in
vm_adjust_num_guest_pages() allows us to remove it from a few
other places.

Signed-off-by: Andrew Jones 
Signed-off-by: Paolo Bonzini

KVM: selftests: Add test for KVM_SET_USER_MEMORY_REGION

2020-03-16T16:57:27+00:00

Add a KVM selftest to test moving the base gfn of a userspace memory
region.  Although the basic concept of moving memory regions is not x86
specific, the assumptions regarding large pages and MMIO shenanigans
used to verify the correctness make this x86_64 only for the time being.

Reviewed-by: Peter Xu 
Signed-off-by: Sean Christopherson 
Signed-off-by: Paolo Bonzini