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Fri, 15 May 2020 09:14:42 +0000 (UTC) Subject: Re: [PATCH 2/3] docs/s390x: document 3270 To: Cornelia Huck References: <20200505135025.14614-1-cohuck@redhat.com> <20200505135025.14614-3-cohuck@redhat.com> <4ea47ea1-04d5-3073-fef6-5af07f06a4d6@redhat.com> <20200515110007.1676b17d.cohuck@redhat.com> From: Thomas Huth Openpgp: preference=signencrypt Message-ID: Date: Fri, 15 May 2020 11:14:40 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <20200515110007.1676b17d.cohuck@redhat.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=utf-8 Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=207.211.31.120; envelope-from=thuth@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/14 22:56:02 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action 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: qemu-s390x@nongnu.org, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 15/05/2020 11.00, Cornelia Huck wrote: > On Fri, 15 May 2020 09:29:42 +0200 > Thomas Huth wrote: > >> On 05/05/2020 15.50, Cornelia Huck wrote: >>> Add some basic info how to use 3270 devices. >>> >>> Signed-off-by: Cornelia Huck >>> --- >>> docs/system/s390x/3270.rst | 32 ++++++++++++++++++++++++++++++++ >>> docs/system/target-s390x.rst | 1 + >>> 2 files changed, 33 insertions(+) >>> create mode 100644 docs/system/s390x/3270.rst >>> >>> diff --git a/docs/system/s390x/3270.rst b/docs/system/s390x/3270.rst >>> new file mode 100644 >>> index 000000000000..e367a457e001 >>> --- /dev/null >>> +++ b/docs/system/s390x/3270.rst >>> @@ -0,0 +1,32 @@ >>> +3270 devices >>> +============ >>> + >>> +With the aid of the ``x3270`` emulator, QEMU provides limited support >>> +for making a single 3270 device available to a guest. Note that this >>> +supports basic features only. >> >> The first sentence sounds somewhat confusing. Maybe rather something like: >> >> QEMU can emulate a 3270 device attached to a guest, which then can be >> used with a program like ``x3270`` to get a traditional 3270 terminal >> for your guest. > > But QEMU actually relies on x3270 (or a comparable program). It only > emulates the basic ccw plumbing; for the actual protocol (beyond > negotiating tn3270), it relies on the emulation done by x3270. Ok, makes sense now. Maybe something like: QEMU provides the possibility to connect an external 3270 terminal emulator (like ``x3270``) to a guest? Thomas