From patchwork Sat Sep 14 11:08:37 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Anup Patel X-Patchwork-Id: 2893131 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 1A4429F1C0 for ; Sat, 14 Sep 2013 11:28:09 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 4630B20209 for ; Sat, 14 Sep 2013 11:28:08 +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 34D3F201B4 for ; Sat, 14 Sep 2013 11:28:07 +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 1VKnks-0005iR-W1; Sat, 14 Sep 2013 11:11:11 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1VKnkD-0001gp-UN; Sat, 14 Sep 2013 11:10:29 +0000 Received: from mail-pb0-f52.google.com ([209.85.160.52]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VKnjl-0001be-Oz for linux-arm-kernel@lists.infradead.org; Sat, 14 Sep 2013 11:10:03 +0000 Received: by mail-pb0-f52.google.com with SMTP id wz12so2236866pbc.39 for ; Sat, 14 Sep 2013 04:09:40 -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=Tjf87KfNe7LBV0XejNSTWGxSsDGH6EDImERX1Q/6YIo=; b=I8wqZcvAiPmFTykejylTlNJU1LT+/uwk7S+Ol91QL+YDkQMQ7RmT7hJIwqr77O8seW nPbV0eAH4KHC8Ffgw2LSuR3mhq8qbNAx7yXYJ7insstOWfDkwAdYNuSQOtPygEicttFL eU6L/t2v/tZ2mqvcIv5F2c0MDBL66NwoMKsdJbLiZ3mPDREPgUBrL+VHBYaNKD3yzuJM MADm4hVPxvTvYkYdWCOvCUuK0grwPfs+ePEdLT+hMSBWpfFVRqPFB2Se/Hq5zShgJpTd RSSYSYqmT3VLSgene2jEbeP/1GuXwPFGcThiMQmETq2NYBjhPfqaCSe8TyHfGMfHiuHI yedw== X-Gm-Message-State: ALoCoQngqWBFUnQv8Uehqx0fK/ZfT9HTMBpGXxMbIxHBe7qUol+aFNfjN3sb40yQqk/hTSwiYgor X-Received: by 10.66.234.193 with SMTP id ug1mr20512127pac.92.1379156980149; Sat, 14 Sep 2013 04:09:40 -0700 (PDT) Received: from pnqlab006.amcc.com ([182.73.239.130]) by mx.google.com with ESMTPSA id xe9sm24434350pab.0.1969.12.31.16.00.00 (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sat, 14 Sep 2013 04:09:39 -0700 (PDT) From: Anup Patel To: kvmarm@lists.cs.columbia.edu Subject: =?UTF-8?q?=5BPATCH=20v2=204/4=5D=20KVM=3A=20Add=20documentation=20for=20KVM=5FARM=5FPREFERRED=5FTARGET=20ioctl?= Date: Sat, 14 Sep 2013 16:38:37 +0530 Message-Id: <1379156917-17497-5-git-send-email-anup.patel@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1379156917-17497-1-git-send-email-anup.patel@linaro.org> References: <1379156917-17497-1-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-20130914_071001_964155_9E1F9B9C X-CRM114-Status: UNSURE ( 9.83 ) X-CRM114-Notice: Please train this message. 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=-5.1 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 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 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 ef925ea..85f8026 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: vcpu ioctl +Parameters: struct struct kvm_vcpu_init (out) +Returns: 0 on success; -1 on error +Errors: +  EINVAL:    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