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oslib-posix: Align to permit transparent hugepages on ARM Linux

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ARM Linux (like x86-64 Linux) can use transparent hugepages for
KVM if memory blocks are 2MiB aligned; set QEMU_VMALLOC_ALIGN
accordingly.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Peter Maydell
2013-03-05 00:34:40 +00:00
parent 00115976bb
commit 2e07b297e0
1 changed files with 1 additions and 1 deletions
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2
util/oslib-posix.c
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@ -35,7 +35,7 @@
extern int daemon(int, int);
#endif
#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. */