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[203.11.71.1]) by mx.google.com with ESMTPS id m13si9651548pgv.398.2019.06.16.21.06.38 for (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Sun, 16 Jun 2019 21:06:39 -0700 (PDT) Received-SPF: pass (google.com: domain of paulus@ozlabs.org designates 203.11.71.1 as permitted sender) client-ip=203.11.71.1; Authentication-Results: mx.google.com; dkim=pass header.i=@ozlabs.org header.s=201707 header.b=Z0EfrHRu; spf=pass (google.com: domain of paulus@ozlabs.org designates 203.11.71.1 as permitted sender) smtp.mailfrom=paulus@ozlabs.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=ozlabs.org Received: by ozlabs.org (Postfix, from userid 1003) id 45RyMJ6YWDz9sDX; Mon, 17 Jun 2019 14:06:36 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ozlabs.org; s=201707; t=1560744396; bh=0cKzGdt6WGsAZB+3r9paweiXCWroPIbVCKopag+ojKg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Z0EfrHRuzCrzprrirgHeOsXdN2MtYJKGs6jXEhmiug8dsUK12ukgYg32hkFCb32M/ SEWnO0nlsdQrwLeL95aLHsYI9wNrhfo+dt7avrzQ3v6WFTsS3n8LqE1+R1ZoH1wVOB XhRxaQpvwDQ+wOyiTLrg4oBAuxXIPQbr1gLS9PdXzmBOK3h0TTrb8o7c4DwqDiEDij BtF6DgIrxDxJ3ODFdTsYKOQVtKq7em0JyemWTaH0hwIzAMfahUUjv2X1YXLbU8b0Hk exxEagml3AklSQK/5L6IAQtiDBLPPDNXXL2MENQvKE2dFxXAr28p+NlONIhtySetgU yElL5UmUA4eOQ== Date: Mon, 17 Jun 2019 14:06:32 +1000 From: Paul Mackerras To: Bharata B Rao Cc: linuxppc-dev@lists.ozlabs.org, kvm-ppc@vger.kernel.org, linux-mm@kvack.org, paulus@au1.ibm.com, aneesh.kumar@linux.vnet.ibm.com, jglisse@redhat.com, linuxram@us.ibm.com, sukadev@linux.vnet.ibm.com, cclaudio@linux.ibm.com Subject: Re: [RFC PATCH v4 6/6] kvmppc: Support reset of secure guest Message-ID: <20190617040632.jiq73ogxqyccvfjl@oak.ozlabs.ibm.com> References: <20190528064933.23119-1-bharata@linux.ibm.com> <20190528064933.23119-7-bharata@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190528064933.23119-7-bharata@linux.ibm.com> User-Agent: NeoMutt/20170113 (1.7.2) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, May 28, 2019 at 12:19:33PM +0530, Bharata B Rao wrote: > Add support for reset of secure guest via a new ioctl KVM_PPC_SVM_OFF. > This ioctl will be issued by QEMU during reset and in this ioctl, > we ask UV to terminate the guest via UV_SVM_TERMINATE ucall, > reinitialize guest's partitioned scoped page tables and release all > HMM pages of the secure guest. > > After these steps, guest is ready to issue UV_ESM call once again > to switch to secure mode. Since you are adding a new KVM ioctl, you need to add a description of it to Documentation/virtual/kvm/api.txt. Paul.