[PATCH v10 06/14] KVM: selftests: Stash backing_src_type in struct userspace_mem_region

[Ricardo Koller]

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.up...@linux.dev>
Signed-off-by: Ricardo Koller <ricar...@google.com>
---
 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 e42a09cd24a0..a9264ed22cca 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 19e37fb7de7c..6affce47e899 100644
--- a/tools/testing/selftests/kvm/lib/kvm_util.c
+++ b/tools/testing/selftests/kvm/lib/kvm_util.c
@@ -929,6 +929,7 @@ 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);
-- 
2.38.0.413.g74048e4d9e-goog

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