[v6,1/9] oslib-posix: Align to permit transparent hugepages on ARM Linux

Submitted by Peter Maydell on Feb. 22, 2013, 7:04 p.m.


Message ID 1361559865-22168-2-git-send-email-peter.maydell@linaro.org
State New
Headers show

Commit Message

Peter Maydell Feb. 22, 2013, 7:04 p.m.
ARM Linux (like x86-64 Linux) can use transparent hugepages for
KVM if memory blocks are 2MiB aligned; set QEMU_VMALLOC_ALIGN

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
 util/oslib-posix.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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diff --git a/util/oslib-posix.c b/util/oslib-posix.c
index b4152fb..433dd68 100644
--- a/util/oslib-posix.c
+++ b/util/oslib-posix.c
@@ -35,7 +35,7 @@ 
 extern int daemon(int, int);
-#if defined(__linux__) && defined(__x86_64__)
+#if defined(__linux__) && (defined(__x86_64__) || defined(__arm__))
    /* 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. */