From mboxrd@z Thu Jan 1 00:00:00 1970 From: Elena Ufimtseva Subject: [PATCH RFC v2 2/2] linux/vnuma: Enables NUMA for domu PV guest Date: Tue, 17 Sep 2013 04:34:01 -0400 Message-ID: <1379406841-7441-3-git-send-email-ufimtseva@gmail.com> References: <1379406841-7441-1-git-send-email-ufimtseva@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1379406841-7441-1-git-send-email-ufimtseva@gmail.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xen.org Cc: Elena Ufimtseva , george.dunlap@eu.citrix.com, dario.faggioli@citrix.com, lccycc123@gmail.com, msw@amazon.com, boris.ostrovsky@oracle.com, anddavid.vrabel@citrix.com List-Id: xen-devel@lists.xenproject.org After the NUMA topology was received from Xen, enable NUMA during boot. Should have CONFIG_NUMA enabled in kernel. Changes since v1: - added additional checks for PV guest and hypercall support before enablinf NUMA; Signed-off-by: Elena Ufimtseva --- arch/x86/xen/setup.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index 8f3eea6..2f2d28e 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include @@ -583,6 +584,9 @@ void __init xen_arch_setup(void) WARN_ON(xen_set_default_idle()); fiddle_vdso(); #ifdef CONFIG_NUMA - numa_off = 1; + if (!xen_initial_domain() && xen_vnuma_support()) + numa_off = 0; + else + numa_off = 1; #endif } -- 1.7.10.4