From patchwork Thu Sep 19 13:11:41 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Anup Patel X-Patchwork-Id: 2911441 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 6533CBFF05 for ; Thu, 19 Sep 2013 13:14:59 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id B630820412 for ; Thu, 19 Sep 2013 13:14:54 +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 66360201B4 for ; Thu, 19 Sep 2013 13:14:53 +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 1VMe33-0008Mp-Rs; Thu, 19 Sep 2013 13:13:34 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1VMe2g-0005k5-1y; Thu, 19 Sep 2013 13:13:10 +0000 Received: from mail-pb0-f41.google.com ([209.85.160.41]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VMe2N-0005ei-28 for linux-arm-kernel@lists.infradead.org; Thu, 19 Sep 2013 13:12:52 +0000 Received: by mail-pb0-f41.google.com with SMTP id rp2so8428756pbb.28 for ; Thu, 19 Sep 2013 06:12:28 -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=ofZjRVZf4rx6FbEYNlx88z30+cey19lFY19gz6pmfXc=; b=TVpfKQBOWxfZRdQgaWftnycwrry3oYUMJjq68HojE1wN/B9nmdbRFs+drSC8PId1wv 2S22k9ghGXtm590/3hkkqiSoEwI5RXVJx7ELyNHa4/rQmZVTtqB/O1S5mE2QaOEZVQ3m g8/CDIEFiY4JJX5ey15vZr2Ahuuyh72LDnpuGCypII4QmR7t3kNF4fp4fwCf7Veb6ceX RUyW9EN9Do1rjMkGxDgnc/n09N2qEvEFxQ2r7VW4X8ZoWEe8LUamjfY+sN4D2epoNhNH mjzojdg2SlDDv/imeFTIrBitvm53Xy7zNq04liLY4YqOvKGtAqYsc+AFjJYJSHZwuau9 WVhg== X-Gm-Message-State: ALoCoQlM4C2jBJlcr+E2qfwFYggf1XkWMp69fj8sEGK6hLZiL4SqvYOAy8U3a3ZbQ0/qPEZwhN+b X-Received: by 10.66.230.138 with SMTP id sy10mr2650349pac.103.1379596348438; Thu, 19 Sep 2013 06:12:28 -0700 (PDT) Received: from pnqlab006.amcc.com ([182.73.239.130]) by mx.google.com with ESMTPSA id ye1sm12118225pab.19.1969.12.31.16.00.00 (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 19 Sep 2013 06:12:27 -0700 (PDT) From: Anup Patel To: kvmarm@lists.cs.columbia.edu Subject: =?UTF-8?q?=5BPATCH=20v3=204/4=5D=20KVM=3A=20Add=20documentation=20for=20KVM=5FARM=5FPREFERRED=5FTARGET=20ioctl?= Date: Thu, 19 Sep 2013 18:41:41 +0530 Message-Id: <1379596302-21522-5-git-send-email-anup.patel@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1379596302-21522-1-git-send-email-anup.patel@linaro.org> References: <1379596302-21522-1-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-20130919_091251_255393_9FFB73D6 X-CRM114-Status: GOOD ( 10.61 ) X-Spam-Score: -2.6 (--) 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 Sawargaonkar 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=-4.8 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 | 26 ++++++++++++++++++++++---- 1 file changed, 22 insertions(+), 4 deletions(-) diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 858aecf..d513cc5 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -2303,8 +2303,27 @@ 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 optional 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 +2342,7 @@ 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 +2380,7 @@ 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