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s=mimecast20190719; t=1678092485; 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=Tu4fLVUa5CKH9yGWFtuNR/Tn/c+l+6gsZNxsu/a/pnc=; b=QmP5TUqiPX4ba7XbuecsLM+H2zg7azl6ZjqWJUP+qCEbt6oQoKeo1rd5WEa9NLFnrbF187 lhrQJ+YjAwGEOysUtHK9Bb9mEQuD9eUr7levl62aAEbRPxZ8ehGagsZSk6A95E4q5vQE81 apP4QJbP4EzCMuk5tq25E+ncImtcTyU= X-MC-Unique: iFmkLrAcMd2mKjPtNdGq6g-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 v4 4/5] docs/about/deprecated: Deprecate 32-bit arm hosts for system emulation Date: Mon, 6 Mar 2023 09:46:57 +0100 Message-Id: <20230306084658.29709-5-thuth@redhat.com> In-Reply-To: <20230306084658.29709-1-thuth@redhat.com> References: <20230306084658.29709-1-thuth@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 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 , John Paul Adrian Glaubitz , 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 10.11.54.2 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: 1678092487315100001 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 Acked-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- docs/about/deprecated.rst | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index c4fcc6b33c..f0de517dc2 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -220,6 +220,15 @@ be an effective use of its limited resources, and thus= intends to 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