From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sasha Levin Subject: [PATCH 7/9] kvm tools: Advise memory allocated for guest RAM as KSM mergable Date: Wed, 29 Jun 2011 14:02:16 -0400 Message-ID: <1309370538-7947-7-git-send-email-levinsasha928@gmail.com> References: <1309370538-7947-1-git-send-email-levinsasha928@gmail.com> Cc: kvm@vger.kernel.org, mingo@elte.hu, asias.hejun@gmail.com, gorcunov@gmail.com, prasadjoshi124@gmail.com, Sasha Levin To: penberg@kernel.org Return-path: Received: from mail-qy0-f174.google.com ([209.85.216.174]:39723 "EHLO mail-qy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756945Ab1F2SEi (ORCPT ); Wed, 29 Jun 2011 14:04:38 -0400 Received: by mail-qy0-f174.google.com with SMTP id 29so2667320qyk.19 for ; Wed, 29 Jun 2011 11:04:38 -0700 (PDT) In-Reply-To: <1309370538-7947-1-git-send-email-levinsasha928@gmail.com> Sender: kvm-owner@vger.kernel.org List-ID: Signed-off-by: Sasha Levin --- tools/kvm/kvm.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/tools/kvm/kvm.c b/tools/kvm/kvm.c index 4f723a6..15bcf08 100644 --- a/tools/kvm/kvm.c +++ b/tools/kvm/kvm.c @@ -345,6 +345,8 @@ struct kvm *kvm__init(const char *kvm_dev, u64 ram_size, const char *name) if (kvm->ram_start == MAP_FAILED) die("out of memory"); + madvise(kvm->ram_start, kvm->ram_size, MADV_MERGEABLE); + ret = ioctl(kvm->vm_fd, KVM_CREATE_IRQCHIP); if (ret < 0) die_perror("KVM_CREATE_IRQCHIP ioctl"); -- 1.7.6