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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@linux.dev>
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221017195834.2295901-7-ricarkol@google.com
This commit is contained in:
Ricardo Koller
2022-10-17 19:58:26 +00:00
committed by Marc Zyngier
parent 590b949597
commit bd3ed7e1a4
2 changed files with 2 additions and 0 deletions
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1
tools/testing/selftests/kvm/include/kvm_util_base.h
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@@ -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;

1
tools/testing/selftests/kvm/lib/kvm_util.c
View File

@@ -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);