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Thu, 5 Mar 2020 13:52:17 +0000 (UTC) Received: from [10.10.120.166] (ovpn-120-166.rdu2.redhat.com [10.10.120.166]) by smtp.corp.redhat.com (Postfix) with ESMTP id 81B3790776; Thu, 5 Mar 2020 13:52:14 +0000 (UTC) Subject: Re: [PATCH v6 03/18] s390x: protvirt: Support unpack facility To: Janosch Frank , qemu-devel@nongnu.org References: <20200304114231.23493-1-frankja@linux.ibm.com> <20200304114231.23493-4-frankja@linux.ibm.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; prefer-encrypt=mutual; keydata= mQINBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABtCREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT6JAlgEEwEIAEICGwMFCQlmAYAGCwkIBwMCBhUI AgkKCwQWAgMBAh4BAheAFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAl3pImkCGQEACgkQTd4Q 9wD/g1o+VA//SFvIHUAvul05u6wKv/pIR6aICPdpF9EIgEU448g+7FfDgQwcEny1pbEzAmiw zAXIQ9H0NZh96lcq+yDLtONnXk/bEYWHHUA014A1wqcYNRY8RvY1+eVHb0uu0KYQoXkzvu+s Dncuguk470XPnscL27hs8PgOP6QjG4jt75K2LfZ0eAqTOUCZTJxA8A7E9+XTYuU0hs7QVrWJ jQdFxQbRMrYz7uP8KmTK9/Cnvqehgl4EzyRaZppshruKMeyheBgvgJd5On1wWq4ZUV5PFM4x II3QbD3EJfWbaJMR55jI9dMFa+vK7MFz3rhWOkEx/QR959lfdRSTXdxs8V3zDvChcmRVGN8U Vo93d1YNtWnA9w6oCW1dnDZ4kgQZZSBIjp6iHcA08apzh7DPi08jL7M9UQByeYGr8KuR4i6e RZI6xhlZerUScVzn35ONwOC91VdYiQgjemiVLq1WDDZ3B7DIzUZ4RQTOaIWdtXBWb8zWakt/ ztGhsx0e39Gvt3391O1PgcA7ilhvqrBPemJrlb9xSPPRbaNAW39P8ws/UJnzSJqnHMVxbRZC Am4add/SM+OCP0w3xYss1jy9T+XdZa0lhUvJfLy7tNcjVG/sxkBXOaSC24MFPuwnoC9WvCVQ ZBxouph3kqc4Dt5X1EeXVLeba+466P1fe1rC8MbcwDkoUo65Ag0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAGJAiUEGAECAA8FAlXLn5ECGwwFCQlmAYAACgkQTd4Q 9wD/g1qA6w/+M+ggFv+JdVsz5+ZIc6MSyGUozASX+bmIuPeIecc9UsFRatc91LuJCKMkD9Uv GOcWSeFpLrSGRQ1Z7EMzFVU//qVs6uzhsNk0RYMyS0B6oloW3FpyQ+zOVylFWQCzoyyf227y GW8HnXunJSC+4PtlL2AY4yZjAVAPLK2l6mhgClVXTQ/S7cBoTQKP+jvVJOoYkpnFxWE9pn4t H5QIFk7Ip8TKr5k3fXVWk4lnUi9MTF/5L/mWqdyIO1s7cjharQCstfWCzWrVeVctpVoDfJWp 4LwTuQ5yEM2KcPeElLg5fR7WB2zH97oI6/Ko2DlovmfQqXh9xWozQt0iGy5tWzh6I0JrlcxJ ileZWLccC4XKD1037Hy2FLAjzfoWgwBLA6ULu0exOOdIa58H4PsXtkFPrUF980EEibUp0zFz GotRVekFAceUaRvAj7dh76cToeZkfsjAvBVb4COXuhgX6N4pofgNkW2AtgYu1nUsPAo+NftU CxrhjHtLn4QEBpkbErnXQyMjHpIatlYGutVMS91XTQXYydCh5crMPs7hYVsvnmGHIaB9ZMfB njnuI31KBiLUks+paRkHQlFcgS2N3gkRBzH7xSZ+t7Re3jvXdXEzKBbQ+dC3lpJB0wPnyMcX FOTT3aZT7IgePkt5iC/BKBk3hqKteTnJFeVIT7EC+a6YUFg= Organization: Red Hat GmbH Message-ID: <7e19dc7d-2d5c-eed7-7ca0-a539047775c6@redhat.com> Date: Thu, 5 Mar 2020 14:52:12 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <20200304114231.23493-4-frankja@linux.ibm.com> Content-Language: en-US X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 207.211.31.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: borntraeger@de.ibm.com, qemu-s390x@nongnu.org, cohuck@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 04.03.20 12:42, Janosch Frank wrote: > When a guest has saved a ipib of type 5 and calls diagnose308 with > subcode 10, we have to setup the protected processing environment via > Ultravisor calls. The calls are done by KVM and are exposed via an > API. > > The following steps are necessary: > 1. Enable protected mode for the VM (register it and its cpus with the Ultravisor) > 2. Forward the secure header to the Ultravisor (has all information on > how to decrypt the image and VM information) > 3. Protect image pages from the host and decrypt them > 4. Verify the image integrity > > Only after step 4 a protected VM is allowed to run. > > Signed-off-by: Janosch Frank > Signed-off-by: Christian Borntraeger [Changes > to machine] > --- > hw/s390x/Makefile.objs | 1 + > hw/s390x/ipl.c | 33 +++++++++ > hw/s390x/ipl.h | 2 + > hw/s390x/pv.c | 106 ++++++++++++++++++++++++++++ > hw/s390x/pv.h | 34 +++++++++ > hw/s390x/s390-virtio-ccw.c | 91 ++++++++++++++++++++++++ > include/hw/s390x/s390-virtio-ccw.h | 1 + > target/s390x/cpu.c | 4 ++ > target/s390x/cpu.h | 1 + > target/s390x/cpu_features_def.inc.h | 1 + > 10 files changed, 274 insertions(+) > create mode 100644 hw/s390x/pv.c > create mode 100644 hw/s390x/pv.h > > diff --git a/hw/s390x/Makefile.objs b/hw/s390x/Makefile.objs > index e02ed80b68..a46a1c7894 100644 > --- a/hw/s390x/Makefile.objs > +++ b/hw/s390x/Makefile.objs > @@ -31,6 +31,7 @@ obj-y += tod-qemu.o > obj-$(CONFIG_KVM) += tod-kvm.o > obj-$(CONFIG_KVM) += s390-skeys-kvm.o > obj-$(CONFIG_KVM) += s390-stattrib-kvm.o > +obj-$(CONFIG_KVM) += pv.o > obj-y += s390-ccw.o > obj-y += ap-device.o > obj-y += ap-bridge.o > diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c > index 80c6ab233a..3b241ea549 100644 > --- a/hw/s390x/ipl.c > +++ b/hw/s390x/ipl.c > @@ -33,6 +33,7 @@ > #include "qemu/cutils.h" > #include "qemu/option.h" > #include "exec/exec-all.h" > +#include "pv.h" > > #define KERN_IMAGE_START 0x010000UL > #define LINUX_MAGIC_ADDR 0x010008UL > @@ -676,6 +677,38 @@ static void s390_ipl_prepare_qipl(S390CPU *cpu) > cpu_physical_memory_unmap(addr, len, 1, len); > } > > +int s390_ipl_prepare_pv_header(void) > +{ > + S390IPLState *ipl = get_ipl_device(); > + IPLBlockPV *ipib_pv = &ipl->iplb_pv.pv; > + void *hdr = g_malloc(ipib_pv->pv_header_len); > + int rc; > + > + cpu_physical_memory_read(ipib_pv->pv_header_addr, hdr, > + ipib_pv->pv_header_len); > + rc = s390_pv_set_sec_parms((uint64_t)hdr, > + ipib_pv->pv_header_len); > + g_free(hdr); > + return rc; > +} > + > +int s390_ipl_pv_unpack(void) > +{ > + int i, rc = 0; > + S390IPLState *ipl = get_ipl_device(); > + IPLBlockPV *ipib_pv = &ipl->iplb_pv.pv; > + > + for (i = 0; i < ipib_pv->num_comp; i++) { > + rc = s390_pv_unpack(ipib_pv->components[i].addr, > + TARGET_PAGE_ALIGN(ipib_pv->components[i].size), > + ipib_pv->components[i].tweak_pref); > + if (rc) { > + break; > + } > + } > + return rc; > +} > + > void s390_ipl_prepare_cpu(S390CPU *cpu) > { > S390IPLState *ipl = get_ipl_device(); > diff --git a/hw/s390x/ipl.h b/hw/s390x/ipl.h > index 04be63cee1..ad8090a02c 100644 > --- a/hw/s390x/ipl.h > +++ b/hw/s390x/ipl.h > @@ -105,6 +105,8 @@ typedef union IplParameterBlock IplParameterBlock; > int s390_ipl_set_loadparm(uint8_t *loadparm); > int s390_ipl_pv_check_components(IplParameterBlock *iplb); > void s390_ipl_update_diag308(IplParameterBlock *iplb); > +int s390_ipl_prepare_pv_header(void); > +int s390_ipl_pv_unpack(void); > void s390_ipl_prepare_cpu(S390CPU *cpu); > IplParameterBlock *s390_ipl_get_iplb(void); > IplParameterBlock *s390_ipl_get_iplb_secure(void); > diff --git a/hw/s390x/pv.c b/hw/s390x/pv.c > new file mode 100644 > index 0000000000..50b68b6c34 > --- /dev/null > +++ b/hw/s390x/pv.c > @@ -0,0 +1,106 @@ > +/* > + * Secure execution functions > + * > + * Copyright IBM Corp. 2020 > + * Author(s): > + * Janosch Frank > + * > + * This work is licensed under the terms of the GNU GPL, version 2 or (at > + * your option) any later version. See the COPYING file in the top-level > + * directory. > + */ > +#include "qemu/osdep.h" > +#include Do you really need that include? You're using kvm_vm_ioctl(). -- Thanks, David / dhildenb