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| author | Nicholas Piggin | 2018-05-06 09:29:49 +0200 |
|---|---|---|
| committer | David Gibson | 2018-06-12 02:44:36 +0200 |
| commit | 0c1272cc7c72dfe0ef66be8f283cf67c74b58586 (patch) | |
| tree | 3f36f2af0b5eb343c06ffb893c83e1ef29905b84 /include/qemu/osdep.h | |
| parent | spapr/vio: deprecate the "irq" property (diff) | |
| download | qemu-0c1272cc7c72dfe0ef66be8f283cf67c74b58586.tar.gz qemu-0c1272cc7c72dfe0ef66be8f283cf67c74b58586.tar.xz qemu-0c1272cc7c72dfe0ef66be8f283cf67c74b58586.zip | |
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 <npiggin@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'include/qemu/osdep.h')
| -rw-r--r-- | include/qemu/osdep.h | 3 |
1 files changed, 2 insertions, 1 deletions
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. */ |