From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paolo Bonzini Subject: Re: [PATCH RFC V11 15/18] kvm : Paravirtual ticketlocks support for linux guests running on KVM hypervisor Date: Mon, 5 Aug 2013 10:45:16 -0400 (EDT) Message-ID: <930127352.9647991.1375713916924.JavaMail.root@redhat.com> References: <51F0ED31.3040200@linux.vnet.ibm.com> <20130802092539.GB28327@gmail.com> <20130802095406.GB30072@redhat.com> <20130805094603.GA29303@gmail.com> <20130805095901.GL2258@redhat.com> <20130805135222.GA32429@gmail.com> <1952910281.9619371.1375711538505.JavaMail.root@redhat.com> <51FFB937.6050003@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <51FFB937.6050003@linux.vnet.ibm.com> Sender: linux-doc-owner@vger.kernel.org To: Raghavendra K T Cc: Gleb Natapov , Ingo Molnar , mingo@redhat.com, x86@kernel.org, tglx@linutronix.de, jeremy@goop.org, konrad wilk , hpa@zytor.com, linux-doc@vger.kernel.org, habanero@linux.vnet.ibm.com, xen-devel@lists.xensource.com, peterz@infradead.org, mtosatti@redhat.com, stefano stabellini , andi@firstfloor.org, attilio rao , ouyang@cs.pitt.edu, gregkh@suse.de, agraf@suse.de, chegu vinod , torvalds@linux-foundation.org, avi kivity , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, riel@redhat.com, drjones@redhat.com, virtualization@lists.linux-foundation.org, srivatsa vaddagiri List-Id: xen-devel@lists.xenproject.org > Only thing I am thinking is about KVM_FEATURE_PV_UNHALT, and > KVM_HC_KICK_CPU definition in the below hunk, that is needed by guest > as well. may be this header file change can be a separate patch so that > duplicate can be handled easily during merge? Sure, good idea. Paolo > I do testing of all combination after splitting and post. > diff --git a/arch/x86/include/uapi/asm/kvm_para.h > b/arch/x86/include/uapi/asm/kvm_para.h > index 06fdbd9..94dc8ca 100644 > --- a/arch/x86/include/uapi/asm/kvm_para.h > +++ b/arch/x86/include/uapi/asm/kvm_para.h > @@ -23,6 +23,7 @@ > #define KVM_FEATURE_ASYNC_PF 4 > #define KVM_FEATURE_STEAL_TIME 5 > #define KVM_FEATURE_PV_EOI 6 > +#define KVM_FEATURE_PV_UNHALT 7 > > diff --git a/include/uapi/linux/kvm_para.h b/include/uapi/linux/kvm_para.h > index cea2c5c..2841f86 100644 > --- a/include/uapi/linux/kvm_para.h > +++ b/include/uapi/linux/kvm_para.h > @@ -19,6 +19,7 @@ > #define KVM_HC_MMU_OP 2 > #define KVM_HC_FEATURES 3 > #define KVM_HC_PPC_MAP_MAGIC_PAGE 4 > +#define KVM_HC_KICK_CPU 5 > > >