diff options
| author | Sean Christopherson <seanjc@google.com> | 2022-02-26 00:15:44 +0000 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-03-08 10:59:10 -0500 |
| commit | a4187c9bd16341b17d54cb3f87b8164945fa81ce (patch) | |
| tree | a6e397bd53daa3e0837bae0ca3f01bd6a8f9e018 /tools/testing/selftests/kvm/include | |
| parent | 3d7d6043f3c31bcfbed1f636035a2eab37117971 (diff) | |
KVM: selftests: Split out helper to allocate guest mem via memfd
Extract the code for allocating guest memory via memfd out of
vm_userspace_mem_region_add() and into a new helper, kvm_memfd_alloc().
A future selftest to populate a guest with the maximum amount of guest
memory will abuse KVM's memslots to alias guest memory regions to a
single memfd-backed host region, i.e. needs to back a guest with memfd
memory without a 1:1 association between a memslot and a memfd instance.
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220226001546.360188-27-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/testing/selftests/kvm/include')
| -rw-r--r-- | tools/testing/selftests/kvm/include/kvm_util_base.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h index 573de0354175..92cef0ffb19e 100644 --- a/tools/testing/selftests/kvm/include/kvm_util_base.h +++ b/tools/testing/selftests/kvm/include/kvm_util_base.h @@ -123,6 +123,7 @@ int kvm_memcmp_hva_gva(void *hva, struct kvm_vm *vm, const vm_vaddr_t gva, size_t len); void kvm_vm_elf_load(struct kvm_vm *vm, const char *filename); +int kvm_memfd_alloc(size_t size, bool hugepages); void vm_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent); |