On Mon, Feb 8, 2021 at 1:08 AM Yanan Wang <wangyanan55@xxxxxxxxxx> wrote: > > Add a macro to get string of the backing source memory type, so that > application can add choices for source types in the help() function, > and users can specify which type to use for testing. Coincidentally, I sent out a change last week to do the same thing: "KVM: selftests: Add backing src parameter to dirty_log_perf_test" (https://lkml.org/lkml/2021/2/2/1430) Whichever way this ends up being implemented, I'm happy to see others interested in testing different backing source types too. > > Signed-off-by: Yanan Wang <wangyanan55@xxxxxxxxxx> > --- > tools/testing/selftests/kvm/include/kvm_util.h | 3 +++ > tools/testing/selftests/kvm/lib/kvm_util.c | 8 ++++++++ > 2 files changed, 11 insertions(+) > > diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h > index 5cbb861525ed..f5fc29dc9ee6 100644 > --- a/tools/testing/selftests/kvm/include/kvm_util.h > +++ b/tools/testing/selftests/kvm/include/kvm_util.h > @@ -69,7 +69,9 @@ enum vm_guest_mode { > #define PTES_PER_MIN_PAGE ptes_per_page(MIN_PAGE_SIZE) > > #define vm_guest_mode_string(m) vm_guest_mode_string[m] > +#define vm_mem_backing_src_type_string(s) vm_mem_backing_src_type_string[s] > extern const char * const vm_guest_mode_string[]; > +extern const char * const vm_mem_backing_src_type_string[]; > > struct vm_guest_mode_params { > unsigned int pa_bits; > @@ -83,6 +85,7 @@ enum vm_mem_backing_src_type { > VM_MEM_SRC_ANONYMOUS, > VM_MEM_SRC_ANONYMOUS_THP, > VM_MEM_SRC_ANONYMOUS_HUGETLB, > + NUM_VM_BACKING_SRC_TYPES, > }; > > int kvm_check_cap(long cap); > diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c > index fa5a90e6c6f0..a9b651c7f866 100644 > --- a/tools/testing/selftests/kvm/lib/kvm_util.c > +++ b/tools/testing/selftests/kvm/lib/kvm_util.c > @@ -165,6 +165,14 @@ const struct vm_guest_mode_params vm_guest_mode_params[] = { > _Static_assert(sizeof(vm_guest_mode_params)/sizeof(struct vm_guest_mode_params) == NUM_VM_MODES, > "Missing new mode params?"); > > +const char * const vm_mem_backing_src_type_string[] = { > + "VM_MEM_SRC_ANONYMOUS ", > + "VM_MEM_SRC_ANONYMOUS_THP ", > + "VM_MEM_SRC_ANONYMOUS_HUGETLB", > +}; > +_Static_assert(sizeof(vm_mem_backing_src_type_string)/sizeof(char *) == NUM_VM_BACKING_SRC_TYPES, > + "Missing new source type strings?"); > + > /* > * VM Create > * > -- > 2.23.0 >
