The host may want to know the number of vCPUs that were
created for a particular VM (used in upcoming patches).
Hence, include nr_vcpus as a part of 'struct kvm_vm' to
keep track of vCPUs as and when they are added or
deleted, and return to the caller via vm_get_nr_vcpus().
Signed-off-by: Raghavendra Rao Ananta <rananta@xxxxxxxxxx>
---
tools/testing/selftests/kvm/include/kvm_util.h | 1 +
tools/testing/selftests/kvm/lib/kvm_util.c | 7 +++++++
tools/testing/selftests/kvm/lib/kvm_util_internal.h | 1 +
3 files changed, 9 insertions(+)
diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h
index 010b59b13917..d5d0ca919928 100644
--- a/tools/testing/selftests/kvm/include/kvm_util.h
+++ b/tools/testing/selftests/kvm/include/kvm_util.h
@@ -399,5 +399,6 @@ uint64_t get_ucall(struct kvm_vm *vm, uint32_t vcpu_id, struct ucall *uc);
int vm_get_stats_fd(struct kvm_vm *vm);
int vcpu_get_stats_fd(struct kvm_vm *vm, uint32_t vcpuid);
+int vm_get_nr_vcpus(struct kvm_vm *vm);
#endif /* SELFTEST_KVM_UTIL_H */
diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c
index 10a8ed691c66..1b5349b5132f 100644
--- a/tools/testing/selftests/kvm/lib/kvm_util.c
+++ b/tools/testing/selftests/kvm/lib/kvm_util.c
@@ -594,6 +594,7 @@ static void vm_vcpu_rm(struct kvm_vm *vm, struct vcpu *vcpu)
list_del(&vcpu->list);
free(vcpu);
+ vm->nr_vcpus--;
}
void kvm_vm_release(struct kvm_vm *vmp)
@@ -1143,6 +1144,7 @@ void vm_vcpu_add(struct kvm_vm *vm, uint32_t vcpuid)
/* Add to linked-list of VCPUs. */
list_add(&vcpu->list, &vm->vcpus);
+ vm->nr_vcpus++;
}
/*
@@ -2343,3 +2345,8 @@ int vcpu_get_stats_fd(struct kvm_vm *vm, uint32_t vcpuid)
return ioctl(vcpu->fd, KVM_GET_STATS_FD, NULL);
}
+
+int vm_get_nr_vcpus(struct kvm_vm *vm)
+{
+ return vm->nr_vcpus;
+}
diff --git a/tools/testing/selftests/kvm/lib/kvm_util_internal.h b/tools/testing/selftests/kvm/lib/kvm_util_internal.h
index a03febc24ba6..be4d852d2f3b 100644
--- a/tools/testing/selftests/kvm/lib/kvm_util_internal.h
+++ b/tools/testing/selftests/kvm/lib/kvm_util_internal.h
@@ -56,6 +56,7 @@ struct kvm_vm {
unsigned int va_bits;
uint64_t max_gfn;
struct list_head vcpus;
+ int nr_vcpus;
struct userspace_mem_regions regions;
struct sparsebit *vpages_valid;
struct sparsebit *vpages_mapped;
--
2.33.0.153.gba50c8fa24-goog
