osdep: powerpc64 align memory to allow 2MB radix THP page tables

This allows KVM with the Book3S radix MMU mode to take advantage of
THP and install larger pages in the partition scope page tables (the
host translation).

Signed-off-by: Nicholas Piggin <[email protected]>
Signed-off-by: David Gibson <[email protected]>

diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h
index afc28e5903b70b7ddfd49b2eacb80f4c50690f9a..9ed62423c0326cc178e072946e201812967de59c 100644 (file)
--- a/include/qemu/osdep.h
+++ b/include/qemu/osdep.h
@@ -367,7 +367,8 @@ void qemu_anon_ram_free(void *ptr, size_t size);
 #endif
 
 #if defined(__linux__) && \
-    (defined(__x86_64__) || defined(__arm__) || defined(__aarch64__))
+    (defined(__x86_64__) || defined(__arm__) || defined(__aarch64__) \
+     || defined(__powerpc64__))
    /* Use 2 MiB alignment so transparent hugepages can be used by KVM.
       Valgrind does not support alignments larger than 1 MiB,
       therefore we need special code which handles running on Valgrind. */