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    Subject[PATCH v6 29/38] KVM: selftests: Export vm_vaddr_unused_gap() to make it possible to request unmapped ranges
    Date
    Currently, tests can only request a new vaddr range by using
    vm_vaddr_alloc()/vm_vaddr_alloc_page()/vm_vaddr_alloc_pages() but
    these functions allocate and map physical pages too. Make it possible
    to request unmapped range too.

    Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
    ---
    tools/testing/selftests/kvm/include/kvm_util_base.h | 1 +
    tools/testing/selftests/kvm/lib/kvm_util.c | 4 ++--
    2 files changed, 3 insertions(+), 2 deletions(-)

    diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h
    index 92cef0ffb19e..8273fe93c4f6 100644
    --- a/tools/testing/selftests/kvm/include/kvm_util_base.h
    +++ b/tools/testing/selftests/kvm/include/kvm_util_base.h
    @@ -169,6 +169,7 @@ void vm_mem_region_set_flags(struct kvm_vm *vm, uint32_t slot, uint32_t flags);
    void vm_mem_region_move(struct kvm_vm *vm, uint32_t slot, uint64_t new_gpa);
    void vm_mem_region_delete(struct kvm_vm *vm, uint32_t slot);
    void vm_vcpu_add(struct kvm_vm *vm, uint32_t vcpuid);
    +vm_vaddr_t vm_vaddr_unused_gap(struct kvm_vm *vm, size_t sz, vm_vaddr_t vaddr_min);
    vm_vaddr_t vm_vaddr_alloc(struct kvm_vm *vm, size_t sz, vm_vaddr_t vaddr_min);
    vm_vaddr_t vm_vaddr_alloc_pages(struct kvm_vm *vm, int nr_pages);
    vm_vaddr_t vm_vaddr_alloc_page(struct kvm_vm *vm);
    diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c
    index 936be9c9f870..37df67780787 100644
    --- a/tools/testing/selftests/kvm/lib/kvm_util.c
    +++ b/tools/testing/selftests/kvm/lib/kvm_util.c
    @@ -1263,8 +1263,8 @@ void vm_vcpu_add(struct kvm_vm *vm, uint32_t vcpuid)
    * TEST_ASSERT failure occurs for invalid input or no area of at least
    * sz unallocated bytes >= vaddr_min is available.
    */
    -static vm_vaddr_t vm_vaddr_unused_gap(struct kvm_vm *vm, size_t sz,
    - vm_vaddr_t vaddr_min)
    +vm_vaddr_t vm_vaddr_unused_gap(struct kvm_vm *vm, size_t sz,
    + vm_vaddr_t vaddr_min)
    {
    uint64_t pages = (sz + vm->page_size - 1) >> vm->page_shift;

    --
    2.35.3
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