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[Qemu-devel] [RFC v5 1/8] oslib-posix: Align to permit transparent hugep
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [RFC v5 1/8] oslib-posix: Align to permit transparent hugepages on ARM Linux |
Date: |
Thu, 24 Jan 2013 15:43:53 +0000 |
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 <address@hidden>
---
util/oslib-posix.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/util/oslib-posix.c b/util/oslib-posix.c
index 4f5ec67..4ad9940 100644
--- a/util/oslib-posix.c
+++ b/util/oslib-posix.c
@@ -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. */
--
1.7.9.5
- [Qemu-devel] [RFC v5 0/8] QEMU: Support KVM on ARM, Peter Maydell, 2013/01/24
- [Qemu-devel] [RFC v5 7/8] hw/kvm/arm_gic: Implement support for KVM in-kernel ARM GIC, Peter Maydell, 2013/01/24
- [Qemu-devel] [RFC v5 8/8] configure: Enable KVM on ARM, Peter Maydell, 2013/01/24
- [Qemu-devel] [RFC v5 1/8] oslib-posix: Align to permit transparent hugepages on ARM Linux,
Peter Maydell <=
- [Qemu-devel] [RFC v5 3/8] ARM: KVM: Add support for KVM on ARM architecture, Peter Maydell, 2013/01/24
- [Qemu-devel] [RFC v5 2/8] linux-headers: Add ARM KVM headers (not for upstream), Peter Maydell, 2013/01/24
- [Qemu-devel] [RFC v5 5/8] hw/arm_gic: Add presave/postload hooks, Peter Maydell, 2013/01/24
- [Qemu-devel] [RFC v5 4/8] ARM KVM: save and load VFP registers from kernel, Peter Maydell, 2013/01/24
- [Qemu-devel] [RFC v5 6/8] target-arm: Use MemoryListener to identify GIC base address for KVM, Peter Maydell, 2013/01/24
- Re: [Qemu-devel] [RFC v5 0/8] QEMU: Support KVM on ARM, Paolo Bonzini, 2013/01/25