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s=mimecast20190719; t=1677838513; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post; bh=7dafleJ4wx0U8vXmX6zkQfmq0ZVEg8ZdEB/iM0cnlPA=; b=cE+sf5nGC0z3FUJiNAPJS3y8uEgFYkUs8jmXB0g92Nw2JrelW8T1o5O83bPWuVeHKebydt Wpr+FyJjdAxfky+a6yGd26fjh5+zdQ8v/o2LFmWQwejxrODSo+PcJexN3H1l2Pl/PfovHb KNzsPk9i4QrFzLqI2kvb7BpmV1SKQJ8= X-MC-Unique: qN8cTbsAMm-TFmCLaGuswA-1 X-Original-To: libvir-list@listman.corp.redhat.com From: Thomas Huth To: qemu-devel@nongnu.org, Peter Maydell , Daniel Berrange , Paolo Bonzini Subject: [PATCH v3 4/6] docs/about/deprecated: Deprecate 32-bit arm hosts for system emulation Date: Fri, 3 Mar 2023 11:14:50 +0100 Message-Id: <20230303101452.769367-5-thuth@redhat.com> In-Reply-To: <20230303101452.769367-1-thuth@redhat.com> References: <20230303101452.769367-1-thuth@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.9 X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: libvir-list@redhat.com, Richard Henderson , Markus Armbruster , Maxim Levitsky , Wilfred Mallawa , qemu-arm@nongnu.org, Reinoud Zandijk , xen-devel@lists.xenproject.org, =?UTF-8?q?Alex=20Benn=C3=A9e?= Errors-To: libvir-list-bounces@redhat.com Sender: "libvir-list" X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1677838516220100001 For running QEMU in system emulation mode, the user needs a rather strong host system, i.e. not only an embedded low-frequency controller. All recent beefy arm host machines should support 64-bit now, it's unlikely that anybody is still seriously using QEMU on a 32-bit arm CPU, so we deprecate the 32-bit arm hosts here to finally save use some time and precious CI minutes. Reviewed-by: Daniel P. Berrang=C3=A9 Reviewed-by: Wilfred Mallawa Signed-off-by: Thomas Huth --- docs/about/deprecated.rst | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index a30aa8dfdf..e2e908f84d 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -219,6 +219,15 @@ discontinue it. Since all recent x86 hardware from the= past >10 years is capable of the 64-bit x86 extensions, a corresponding 64-bit OS should be used instead. =20 +System emulation on 32-bit arm hosts (since 8.0) +'''''''''''''''''''''''''''''''''''''''''''''''' + +Since QEMU needs a strong host machine for running full system emulation, = and +all recent powerful arm hosts support 64-bit, the QEMU project deprecates = the +support for running any system emulation on 32-bit arm hosts in general. U= se +64-bit arm hosts for system emulation instead. (Note: "user" mode emulation +continuous to be supported on 32-bit arm hosts, too) + =20 QEMU API (QAPI) events ---------------------- --=20 2.31.1