[PATCH v6 06/13] KVM: selftests: Stash backing_src_type in struct userspace_mem_region

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Add the backing_src_type into struct userspace_mem_region. This struct already
stores a lot of info about memory regions, except the backing source type.
This info will be used by a future commit in order to determine the method for
punching a hole.

Reviewed-by: Oliver Upton <oliver.upton@xxxxxxxxx>
Signed-off-by: Ricardo Koller <ricarkol@xxxxxxxxxx>
---
 tools/testing/selftests/kvm/include/kvm_util_base.h | 1 +
 tools/testing/selftests/kvm/lib/kvm_util.c          | 1 +
 2 files changed, 2 insertions(+)

diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h
index 24fde97f6121..b2dbe253d4d0 100644
--- a/tools/testing/selftests/kvm/include/kvm_util_base.h
+++ b/tools/testing/selftests/kvm/include/kvm_util_base.h
@@ -34,6 +34,7 @@ struct userspace_mem_region {
 	struct sparsebit *unused_phy_pages;
 	int fd;
 	off_t offset;
+	enum vm_mem_backing_src_type backing_src_type;
 	void *host_mem;
 	void *host_alias;
 	void *mmap_start;
diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c
index 9dd03eda2eb9..5a9f080ff888 100644
--- a/tools/testing/selftests/kvm/lib/kvm_util.c
+++ b/tools/testing/selftests/kvm/lib/kvm_util.c
@@ -887,6 +887,7 @@ void vm_userspace_mem_region_add(struct kvm_vm *vm,
 			    vm_mem_backing_src_alias(src_type)->name);
 	}
 
+	region->backing_src_type = src_type;
 	region->unused_phy_pages = sparsebit_alloc();
 	sparsebit_set_num(region->unused_phy_pages,
 		guest_paddr >> vm->page_shift, npages);
-- 
2.37.3.968.ga6b4b080e4-goog

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