From 0c1272cc7c72dfe0ef66be8f283cf67c74b58586 Mon Sep 17 00:00:00 2001 From: Nicholas Piggin Date: Sun, 6 May 2018 17:29:49 +1000 Subject: [PATCH] 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 Signed-off-by: David Gibson --- include/qemu/osdep.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h index afc28e5903..9ed62423c0 100644 --- 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. */ -- 2.30.2