From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoffer Dall Subject: Re: [PATCH V2 1/2] KVM: arm/arm64: Enable KVM_CAP_NR_MEMSLOTS on arm/arm64 Date: Thu, 23 Feb 2017 11:10:27 +0100 Message-ID: <20170223101027.GA1409@cbox> References: <1486538141-30627-1-git-send-email-linucherian@gmail.com> <1486538141-30627-2-git-send-email-linucherian@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 02E0840C8A for ; Thu, 23 Feb 2017 05:09:44 -0500 (EST) Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rQ0Itm+a7jDj for ; Thu, 23 Feb 2017 05:09:42 -0500 (EST) Received: from mail-wm0-f45.google.com (mail-wm0-f45.google.com [74.125.82.45]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id 3F7FC40C56 for ; Thu, 23 Feb 2017 05:09:42 -0500 (EST) Received: by mail-wm0-f45.google.com with SMTP id v77so24418272wmv.1 for ; Thu, 23 Feb 2017 02:10:42 -0800 (PST) Content-Disposition: inline In-Reply-To: <1486538141-30627-2-git-send-email-linucherian@gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu To: linucherian@gmail.com Cc: sunil.goutham@cavium.com, marc.zyngier@arm.com, linu.cherian@cavium.com, pbonzini@redhat.com, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org List-Id: kvmarm@lists.cs.columbia.edu On Wed, Feb 08, 2017 at 12:45:40PM +0530, linucherian@gmail.com wrote: > From: Linu Cherian > > Return KVM_USER_MEM_SLOTS for userspace capability query on > NR_MEMSLOTS. This feature seems to be undocumented (I cannot find it in Documentation/virtual/kvm/api.txt). Can we add documentation for it? What does user space do currently without this capability? Does it just rely on some default? Thanks, -Christoffer > > Signed-off-by: Linu Cherian > --- > arch/arm/kvm/arm.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c > index 9d74464..b64b47f 100644 > --- a/arch/arm/kvm/arm.c > +++ b/arch/arm/kvm/arm.c > @@ -221,6 +221,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) > case KVM_CAP_MAX_VCPUS: > r = KVM_MAX_VCPUS; > break; > + case KVM_CAP_NR_MEMSLOTS: > + r = KVM_USER_MEM_SLOTS; > + break; > case KVM_CAP_MSI_DEVID: > if (!kvm) > r = -EINVAL; > -- > 1.9.1 > From mboxrd@z Thu Jan 1 00:00:00 1970 From: cdall@linaro.org (Christoffer Dall) Date: Thu, 23 Feb 2017 11:10:27 +0100 Subject: [PATCH V2 1/2] KVM: arm/arm64: Enable KVM_CAP_NR_MEMSLOTS on arm/arm64 In-Reply-To: <1486538141-30627-2-git-send-email-linucherian@gmail.com> References: <1486538141-30627-1-git-send-email-linucherian@gmail.com> <1486538141-30627-2-git-send-email-linucherian@gmail.com> Message-ID: <20170223101027.GA1409@cbox> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, Feb 08, 2017 at 12:45:40PM +0530, linucherian at gmail.com wrote: > From: Linu Cherian > > Return KVM_USER_MEM_SLOTS for userspace capability query on > NR_MEMSLOTS. This feature seems to be undocumented (I cannot find it in Documentation/virtual/kvm/api.txt). Can we add documentation for it? What does user space do currently without this capability? Does it just rely on some default? Thanks, -Christoffer > > Signed-off-by: Linu Cherian > --- > arch/arm/kvm/arm.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c > index 9d74464..b64b47f 100644 > --- a/arch/arm/kvm/arm.c > +++ b/arch/arm/kvm/arm.c > @@ -221,6 +221,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) > case KVM_CAP_MAX_VCPUS: > r = KVM_MAX_VCPUS; > break; > + case KVM_CAP_NR_MEMSLOTS: > + r = KVM_USER_MEM_SLOTS; > + break; > case KVM_CAP_MSI_DEVID: > if (!kvm) > r = -EINVAL; > -- > 1.9.1 >