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author | Andrew Jones <drjones@redhat.com> | 2020-03-13 16:56:44 +0100 |
---|---|---|
committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-03-16 17:59:07 +0100 |
commit | 94c4b76b88d40f9062dc32ff2fff551ae1791c1e (patch) | |
tree | 74487c65682932b2d52df3e1ec5de6684d1a01d8 /tools/testing/selftests/kvm/lib | |
parent | KVM: selftests: virt_map should take npages, not size (diff) | |
download | linux-dev-94c4b76b88d40f9062dc32ff2fff551ae1791c1e.tar.xz linux-dev-94c4b76b88d40f9062dc32ff2fff551ae1791c1e.zip |
KVM: selftests: Introduce steal-time test
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 <drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/testing/selftests/kvm/lib')
-rw-r--r-- | tools/testing/selftests/kvm/lib/kvm_util.c | 7 | ||||
-rw-r--r-- | tools/testing/selftests/kvm/lib/test_util.c | 15 |
2 files changed, 22 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c index e26917ba25bc..35bd42370c21 100644 --- a/tools/testing/selftests/kvm/lib/kvm_util.c +++ b/tools/testing/selftests/kvm/lib/kvm_util.c @@ -1769,3 +1769,10 @@ vm_num_guest_pages(enum vm_guest_mode mode, unsigned int num_host_pages) return vm_calc_num_pages(num_host_pages, getpageshift(), vm_guest_mode_params[mode].page_shift, false); } + +unsigned int vm_calc_num_guest_pages(enum vm_guest_mode mode, size_t size) +{ + unsigned int n; + n = DIV_ROUND_UP(size, vm_guest_mode_params[mode].page_size); + return vm_adjust_num_guest_pages(mode, n); +} diff --git a/tools/testing/selftests/kvm/lib/test_util.c b/tools/testing/selftests/kvm/lib/test_util.c index 26fb3d73dc74..ee12c4b9ae05 100644 --- a/tools/testing/selftests/kvm/lib/test_util.c +++ b/tools/testing/selftests/kvm/lib/test_util.c @@ -71,6 +71,21 @@ struct timespec timespec_diff(struct timespec start, struct timespec end) return temp; } +struct timespec timespec_add_ns(struct timespec ts, int64_t ns) +{ + struct timespec res; + + res.tv_sec = ts.tv_sec; + res.tv_nsec = ts.tv_nsec + ns; + + if (res.tv_nsec > 1000000000UL) { + res.tv_sec += 1; + res.tv_nsec -= 1000000000UL; + } + + return res; +} + void print_skip(const char *fmt, ...) { va_list ap; |