Commit 94c4b76b authored by Andrew Jones's avatar Andrew Jones Committed by Paolo Bonzini
Browse files

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: default avatarAndrew Jones <drjones@redhat.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent beca5470

tools/testing/selftests/kvm/.gitignore

+2 −0
Original line number Diff line number Diff line 
/s390x/memop

/s390x/resets

/s390x/sync_regs_test

/x86_64/cr4_cpuid_sync_test

/x86_64/evmcs_test
@@ -20,3 +21,4 @@ 
/demand_paging_test

/dirty_log_test

/kvm_create_max_vcpus

/steal_time

tools/testing/selftests/kvm/Makefile

+7 −5
Original line number Diff line number Diff line
@@ -21,28 +21,30 @@ TEST_GEN_PROGS_x86_64 += x86_64/set_memory_region_test 
TEST_GEN_PROGS_x86_64 += x86_64/set_sregs_test

TEST_GEN_PROGS_x86_64 += x86_64/smm_test

TEST_GEN_PROGS_x86_64 += x86_64/state_test

TEST_GEN_PROGS_x86_64 += x86_64/svm_vmcall_test

TEST_GEN_PROGS_x86_64 += x86_64/sync_regs_test

TEST_GEN_PROGS_x86_64 += x86_64/vmx_close_while_nested_test

TEST_GEN_PROGS_x86_64 += x86_64/vmx_dirty_log_test

TEST_GEN_PROGS_x86_64 += x86_64/vmx_set_nested_state_test

TEST_GEN_PROGS_x86_64 += x86_64/vmx_tsc_adjust_test

TEST_GEN_PROGS_x86_64 += x86_64/xss_msr_test

TEST_GEN_PROGS_x86_64 += x86_64/svm_vmcall_test

TEST_GEN_PROGS_x86_64 += clear_dirty_log_test

TEST_GEN_PROGS_x86_64 += dirty_log_test

TEST_GEN_PROGS_x86_64 += demand_paging_test

TEST_GEN_PROGS_x86_64 += dirty_log_test

TEST_GEN_PROGS_x86_64 += kvm_create_max_vcpus

TEST_GEN_PROGS_x86_64 += steal_time



TEST_GEN_PROGS_aarch64 += clear_dirty_log_test

TEST_GEN_PROGS_aarch64 += dirty_log_test

TEST_GEN_PROGS_aarch64 += demand_paging_test

TEST_GEN_PROGS_aarch64 += dirty_log_test

TEST_GEN_PROGS_aarch64 += kvm_create_max_vcpus

TEST_GEN_PROGS_aarch64 += steal_time



TEST_GEN_PROGS_s390x = s390x/memop

TEST_GEN_PROGS_s390x += s390x/sync_regs_test

TEST_GEN_PROGS_s390x += s390x/resets

TEST_GEN_PROGS_s390x += dirty_log_test

TEST_GEN_PROGS_s390x += s390x/sync_regs_test

TEST_GEN_PROGS_s390x += demand_paging_test

TEST_GEN_PROGS_s390x += dirty_log_test

TEST_GEN_PROGS_s390x += kvm_create_max_vcpus



TEST_GEN_PROGS += $(TEST_GEN_PROGS_$(UNAME_M))

tools/testing/selftests/kvm/include/kvm_util.h

+1 −0
Original line number Diff line number Diff line
@@ -255,6 +255,7 @@ unsigned int vm_get_page_size(struct kvm_vm *vm); 
unsigned int vm_get_page_shift(struct kvm_vm *vm);

unsigned int vm_get_max_gfn(struct kvm_vm *vm);



unsigned int vm_calc_num_guest_pages(enum vm_guest_mode mode, size_t size);

unsigned int vm_num_host_pages(enum vm_guest_mode mode, unsigned int num_guest_pages);

unsigned int vm_num_guest_pages(enum vm_guest_mode mode, unsigned int num_host_pages);

static inline unsigned int

tools/testing/selftests/kvm/include/test_util.h

+1 −0
Original line number Diff line number Diff line
@@ -59,5 +59,6 @@ size_t parse_size(const char *size); 


int64_t timespec_to_ns(struct timespec ts);

struct timespec timespec_diff(struct timespec start, struct timespec end);

struct timespec timespec_add_ns(struct timespec ts, int64_t ns);



#endif /* SELFTEST_KVM_TEST_UTIL_H */

tools/testing/selftests/kvm/lib/kvm_util.c

+7 −0
Original line number Diff line number Diff line
@@ -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);

}

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