From e54816f13676b09c4bd8899b466f8aafb9cf3d0e Mon Sep 17 00:00:00 2001 From: David Gibson Date: Wed, 25 Jul 2018 07:35:49 +0100 Subject: [PATCH 02/14] osdep: powerpc64 align memory to allow 2MB radix THP page tables RH-Author: David Gibson Message-id: <20180725073549.9857-1-dgibson@redhat.com> Patchwork-id: 81499 O-Subject: [RHEL-8.0 qemu-kvm PATCH] osdep: powerpc64 align memory to allow 2MB radix THP page tables Bugzilla: 1601317 RH-Acked-by: Thomas Huth RH-Acked-by: Laurent Vivier RH-Acked-by: Serhii Popovych From: Nicholas Piggin 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 (cherry picked from commit 0c1272cc7c72dfe0ef66be8f283cf67c74b58586) Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1601317 Brew: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=17346107 Signed-off-by: David Gibson Signed-off-by: Danilo C. L. de Paula --- 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 4165806..5910682 100644 --- a/include/qemu/osdep.h +++ b/include/qemu/osdep.h @@ -357,7 +357,8 @@ 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. */ -- 1.8.3.1