KVM: selftests: Use the innermost page allocator API in the memslot perf test

Use the quad-underscores physical page allocator API in the memslot perf
test in anticipation of converting the outer versions to take the memory
region type instead of the raw memslot.  Stating the obvious, the memslot
perf test creates and allocates from multiple memslots, and so can't use
MEM_REGION_TEST_DATA to communicate which region/slot to allocate from.

No functional change intended.

Tested-by: Itaru Kitayama <itaru.kitayama@fujitsu.com>
Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Tested-by: Itaru Kitayam <itaru.kitayama@fujitsu.com>
Link: https://patch.msgid.link/20260902164123.2546762-9-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

0 files changed, 0 insertions, 0 deletions