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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 3EA7CA001A X-Stat-Signature: an96moapnfnraqm8ws86uhxq45d4up4k X-Rspam-User: X-HE-Tag: 1773756797-555203 X-HE-Meta: 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 clyxfIO3 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: Patrick Roy =0A= =0A= Extend mem conversion selftests to cover the scenario that the guest can=0A= fault in and write gmem-backed guest memory even if its direct map=0A= removed. Also cover the new flag in guest_memfd_test.c tests.=0A= =0A= Signed-off-by: Patrick Roy =0A= Signed-off-by: Nikita Kalyazin =0A= ---=0A= tools/testing/selftests/kvm/guest_memfd_test.c | 17 ++++++++++++++++-=0A= .../kvm/x86/private_mem_conversions_test.c | 7 ++++---=0A= 2 files changed, 20 insertions(+), 4 deletions(-)=0A= =0A= diff --git a/tools/testing/selftests/kvm/guest_memfd_test.c b/tools/testing= /selftests/kvm/guest_memfd_test.c=0A= index cc329b57ce2e..64c1200c182e 100644=0A= --- a/tools/testing/selftests/kvm/guest_memfd_test.c=0A= +++ b/tools/testing/selftests/kvm/guest_memfd_test.c=0A= @@ -403,6 +403,17 @@ static void test_guest_memfd(unsigned long vm_type)=0A= __test_guest_memfd(vm, GUEST_MEMFD_FLAG_MMAP |=0A= GUEST_MEMFD_FLAG_INIT_SHARED);=0A= =0A= + if (flags & GUEST_MEMFD_FLAG_NO_DIRECT_MAP) {=0A= + __test_guest_memfd(vm, GUEST_MEMFD_FLAG_NO_DIRECT_MAP);=0A= + if (flags & GUEST_MEMFD_FLAG_MMAP)=0A= + __test_guest_memfd(vm, GUEST_MEMFD_FLAG_NO_DIRECT_MAP |=0A= + GUEST_MEMFD_FLAG_MMAP);=0A= + if (flags & GUEST_MEMFD_FLAG_INIT_SHARED)=0A= + __test_guest_memfd(vm, GUEST_MEMFD_FLAG_NO_DIRECT_MAP |=0A= + GUEST_MEMFD_FLAG_MMAP |=0A= + GUEST_MEMFD_FLAG_INIT_SHARED);=0A= + }=0A= +=0A= kvm_vm_free(vm);=0A= }=0A= =0A= @@ -445,10 +456,14 @@ static void test_guest_memfd_guest(void)=0A= TEST_ASSERT(vm_check_cap(vm, KVM_CAP_GUEST_MEMFD_FLAGS) & GUEST_MEMFD_FLA= G_INIT_SHARED,=0A= "Default VM type should support INIT_SHARED, supported flags =3D 0x%= x",=0A= vm_check_cap(vm, KVM_CAP_GUEST_MEMFD_FLAGS));=0A= + TEST_ASSERT(vm_check_cap(vm, KVM_CAP_GUEST_MEMFD_FLAGS) & GUEST_MEMFD_FLA= G_NO_DIRECT_MAP,=0A= + "Default VM type should support NO_DIRECT_MAP, supported flags =3D 0= x%x",=0A= + vm_check_cap(vm, KVM_CAP_GUEST_MEMFD_FLAGS));=0A= =0A= size =3D vm->page_size;=0A= fd =3D vm_create_guest_memfd(vm, size, GUEST_MEMFD_FLAG_MMAP |=0A= - GUEST_MEMFD_FLAG_INIT_SHARED);=0A= + GUEST_MEMFD_FLAG_INIT_SHARED |=0A= + GUEST_MEMFD_FLAG_NO_DIRECT_MAP);=0A= vm_set_user_memory_region2(vm, slot, KVM_MEM_GUEST_MEMFD, gpa, size, NULL= , fd, 0);=0A= =0A= mem =3D kvm_mmap(size, PROT_READ | PROT_WRITE, MAP_SHARED, fd);=0A= diff --git a/tools/testing/selftests/kvm/x86/private_mem_conversions_test.c= b/tools/testing/selftests/kvm/x86/private_mem_conversions_test.c=0A= index 1969f4ab9b28..8767cb4a037e 100644=0A= --- a/tools/testing/selftests/kvm/x86/private_mem_conversions_test.c=0A= +++ b/tools/testing/selftests/kvm/x86/private_mem_conversions_test.c=0A= @@ -367,7 +367,7 @@ static void *__test_mem_conversions(void *__vcpu)=0A= }=0A= =0A= static void test_mem_conversions(enum vm_mem_backing_src_type src_type, ui= nt32_t nr_vcpus,=0A= - uint32_t nr_memslots)=0A= + uint32_t nr_memslots, uint64_t gmem_flags)=0A= {=0A= /*=0A= * Allocate enough memory so that each vCPU's chunk of memory can be=0A= @@ -394,7 +394,7 @@ static void test_mem_conversions(enum vm_mem_backing_sr= c_type src_type, uint32_t=0A= =0A= vm_enable_cap(vm, KVM_CAP_EXIT_HYPERCALL, (1 << KVM_HC_MAP_GPA_RANGE));= =0A= =0A= - memfd =3D vm_create_guest_memfd(vm, memfd_size, 0);=0A= + memfd =3D vm_create_guest_memfd(vm, memfd_size, gmem_flags);=0A= =0A= for (i =3D 0; i < nr_memslots; i++)=0A= vm_mem_add(vm, src_type, BASE_DATA_GPA + slot_size * i,=0A= @@ -474,7 +474,8 @@ int main(int argc, char *argv[])=0A= }=0A= }=0A= =0A= - test_mem_conversions(src_type, nr_vcpus, nr_memslots);=0A= + test_mem_conversions(src_type, nr_vcpus, nr_memslots, 0);=0A= + test_mem_conversions(src_type, nr_vcpus, nr_memslots, GUEST_MEMFD_FLAG_NO= _DIRECT_MAP);=0A= =0A= return 0;=0A= }=0A= -- =0A= 2.50.1=0A= =0A=