From patchwork Wed Sep 25 09:26:03 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Anup Patel X-Patchwork-Id: 2941051 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id C86E89F288 for ; Wed, 25 Sep 2013 09:29:47 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A25AD20580 for ; Wed, 25 Sep 2013 09:29:46 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DAAD42057B for ; Wed, 25 Sep 2013 09:29:41 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VOlOT-00061B-Ds; Wed, 25 Sep 2013 09:28:26 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1VOlO3-00027E-IE; Wed, 25 Sep 2013 09:27:59 +0000 Received: from mail-pd0-f170.google.com ([209.85.192.170]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VOlNf-000220-Sg for linux-arm-kernel@lists.infradead.org; Wed, 25 Sep 2013 09:27:37 +0000 Received: by mail-pd0-f170.google.com with SMTP id x10so5861636pdj.15 for ; Wed, 25 Sep 2013 02:27:14 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-type:content-transfer-encoding; bh=NuHN7UgbdRKRYOJ57WtUqhAGzA0zy7zy55Eaare0+pE=; b=GZe1tBpIiZPS3oHswypFPikFvrA/RduvBBBDIMieQ4xK/Vc7LLylUBKj4rcuQasuu8 W88WNq/B8c63x9tz+KvJsmfPyH/oDYvDZlblw264Q+GwnJ84ynqMmdNlkUP4WZ1aviZp ZQYJp9QME7LHouG0pp6rxzv/HFvzkQPCc6XH/CZX6jGb8Xfi1KEPQro/j0+2fb9z4BCx GB5swFbKKl1OIte7PT9vG5tjqZHICF7mmh7sfxcmVSD9W/56vtt7lbKpVvUGR9FoARXp MYVbVj9v91+X09UcrBSgcMzCH9qYk5hntDjL+C/xa295nbNEehjw7NZHp602hlYnflh6 OLIQ== X-Gm-Message-State: ALoCoQltkJxI5zxdKPdnPf9VFc/+41UcD+e45KTsM3Bt/PG0+yaIYPEBEngmB80NbKfj0tNqVa8T X-Received: by 10.66.65.108 with SMTP id w12mr9989710pas.183.1380101234290; Wed, 25 Sep 2013 02:27:14 -0700 (PDT) Received: from pnqlab006.amcc.com ([182.73.239.130]) by mx.google.com with ESMTPSA id k4sm46364649pbd.11.1969.12.31.16.00.00 (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 25 Sep 2013 02:27:13 -0700 (PDT) From: Anup Patel To: kvmarm@lists.cs.columbia.edu Subject: =?UTF-8?q?=5BPATCH=20v4=204/4=5D=20KVM=3A=20Add=20documentation=20for=20KVM=5FARM=5FPREFERRED=5FTARGET=20ioctl?= Date: Wed, 25 Sep 2013 14:56:03 +0530 Message-Id: <1380101163-20028-5-git-send-email-anup.patel@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1380101163-20028-1-git-send-email-anup.patel@linaro.org> References: <1380101163-20028-1-git-send-email-anup.patel@linaro.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130925_052736_042081_27166695 X-CRM114-Status: GOOD ( 10.24 ) X-Spam-Score: -1.9 (-) Cc: linaro-kernel@lists.linaro.org, Anup Patel , patches@linaro.org, marc.zyngier@arm.com, linux-arm-kernel@lists.infradead.org, christoffer.dall@linaro.org, pranavkumar@linaro.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-6.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP To implement CPU=Host we have added KVM_ARM_PREFERRED_TARGET vm ioctl which provides information to user space required for creating VCPU matching underlying Host. This patch adds info related to this new KVM_ARM_PREFERRED_TARGET vm ioctl in the KVM API documentation. Signed-off-by: Anup Patel Signed-off-by: Pranavkumar Sawargaonkar --- Documentation/virtual/kvm/api.txt | 27 +++++++++++++++++++++++---- 1 file changed, 23 insertions(+), 4 deletions(-) diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 858aecf..f31e6e8 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -2303,8 +2303,28 @@ Possible features: - KVM_ARM_VCPU_EL1_32BIT: Starts the CPU in a 32bit mode. Depends on KVM_CAP_ARM_EL1_32BIT (arm64 only). +4.83 KVM_ARM_PREFERRED_TARGET -4.83 KVM_GET_REG_LIST +Capability: basic +Architectures: arm, arm64 +Type: vm ioctl +Parameters: struct struct kvm_vcpu_init (out) +Returns: 0 on success; -1 on error +Errors: +  ENODEV:    no preferred target available for the host + +This queries KVM for preferred CPU target type which can be emulated +by KVM on underlying host. + +The ioctl returns struct kvm_vcpu_init instance containing information +about preferred CPU target type and target specific features available +for it. + +The information returned by this ioctl can be used to prepare instance +of struct kvm_vcpu_init for KVM_ARM_VCPU_INIT ioctl which will result +in VCPU matching underlying host. + +4.84 KVM_GET_REG_LIST Capability: basic Architectures: arm, arm64 @@ -2323,8 +2343,7 @@ struct kvm_reg_list { This ioctl returns the guest registers that are supported for the KVM_GET_ONE_REG/KVM_SET_ONE_REG calls. - -4.84 KVM_ARM_SET_DEVICE_ADDR +4.85 KVM_ARM_SET_DEVICE_ADDR Capability: KVM_CAP_ARM_SET_DEVICE_ADDR Architectures: arm, arm64 @@ -2362,7 +2381,7 @@ must be called after calling KVM_CREATE_IRQCHIP, but before calling KVM_RUN on any of the VCPUs. Calling this ioctl twice for any of the base addresses will return -EEXIST. -4.85 KVM_PPC_RTAS_DEFINE_TOKEN +4.86 KVM_PPC_RTAS_DEFINE_TOKEN Capability: KVM_CAP_PPC_RTAS Architectures: ppc