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Re: [Qemu-devel] [kvmarm] [RFC v4 8/8] oslib-posix: Align to permit tran
From: |
Christoffer Dall |
Subject: |
Re: [Qemu-devel] [kvmarm] [RFC v4 8/8] oslib-posix: Align to permit transparent hugepages on ARM Linux |
Date: |
Tue, 20 Nov 2012 08:55:56 -0500 |
On Tue, Nov 20, 2012 at 8:54 AM, Alexander Graf <address@hidden> wrote:
> On 11/20/2012 02:31 PM, Peter Maydell wrote:
>>
>> 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>
>> ---
>> oslib-posix.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/oslib-posix.c b/oslib-posix.c
>> index 9db9c3d..d25b52a 100644
>> --- a/oslib-posix.c
>> +++ b/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__))
>
>
> Why not just drop the arch specific bit?
>
>
other archs have other alignment requirements, iirc.
[Qemu-devel] [RFC v4 6/8] hw/kvm/arm_gic: Implement support for KVM in-kernel ARM GIC, Peter Maydell, 2012/11/20
[Qemu-devel] [RFC v4 7/8] configure: Enable KVM on ARM, Peter Maydell, 2012/11/20
[Qemu-devel] [RFC v4 5/8] target-arm: Use MemoryListener to identify GIC base address for KVM, Peter Maydell, 2012/11/20
[Qemu-devel] [RFC v4 1/8] linux-headers: Add ARM KVM headers (not for upstream), Peter Maydell, 2012/11/20
[Qemu-devel] [RFC v4 3/8] ARM KVM: save and load VFP registers from kernel, Peter Maydell, 2012/11/20
[Qemu-devel] [RFC v4 2/8] ARM: KVM: Add support for KVM on ARM architecture, Peter Maydell, 2012/11/20