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Merge tag 'kvm-x86-selftests-6.16' of https://github.com/kvm-x86/linux into HEAD

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KVM selftests changes for 6.16:

 - Add support for SNP to the various SEV selftests.

 - Add a selftest to verify fastops instructions via forced emulation.

 - Add MGLRU support to the access tracking perf test.
This commit is contained in:
Paolo Bonzini
2025-05-27 12:15:26 -04:00
parent db44dcbdf8 d166453ebd
commit 3e0797f6dd
23 changed files with 1275 additions and 211 deletions
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21
tools/testing/selftests/kvm/lib/kvm_util.c
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@@ -447,6 +447,15 @@ void kvm_set_files_rlimit(uint32_t nr_vcpus)
}
static bool is_guest_memfd_required(struct vm_shape shape)
{
#ifdef __x86_64__
return shape.type == KVM_X86_SNP_VM;
#else
return false;
#endif
}
struct kvm_vm *__vm_create(struct vm_shape shape, uint32_t nr_runnable_vcpus,
uint64_t nr_extra_pages)
{
@@ -454,7 +463,7 @@ struct kvm_vm *__vm_create(struct vm_shape shape, uint32_t nr_runnable_vcpus,
nr_extra_pages);
struct userspace_mem_region *slot0;
struct kvm_vm *vm;
int i;
int i, flags;
kvm_set_files_rlimit(nr_runnable_vcpus);
@@ -463,7 +472,15 @@ struct kvm_vm *__vm_create(struct vm_shape shape, uint32_t nr_runnable_vcpus,
vm = ____vm_create(shape);
vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS, 0, 0, nr_pages, 0);
/*
* Force GUEST_MEMFD for the primary memory region if necessary, e.g.
* for CoCo VMs that require GUEST_MEMFD backed private memory.
*/
flags = 0;
if (is_guest_memfd_required(shape))
flags |= KVM_MEM_GUEST_MEMFD;
vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS, 0, 0, nr_pages, flags);
for (i = 0; i < NR_MEM_REGIONS; i++)
vm->memslots[i] = 0;