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Thu, 2 Mar 2023 16:31:23 +0000 (UTC) Received: from thuth.com (unknown [10.39.192.93]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8CA32400EA93; Thu, 2 Mar 2023 16:31:21 +0000 (UTC) X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: af99e17a-b917-11ed-a550-8520e6686977 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1677774689; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=mTfeuO/znvs5lHRChCVKJ8TB4KKBsOzPzos7lhRqsaw=; b=Zjgy+PsPdD2VCyEiPDZvP0AS3BGIcaxUYd6jSTBQyT58vSnjGwz+FM785FVD3YjEv4iiHq qKgIczpd581Ng3QkUOFPd4M+35kNNmJGxYDHSiQeBTsYSLORiOjJJ5zDOalHZRx6I2yVVl 9d/YUCN+biviMcJT/nHTS9ZbBkKgfKM= X-MC-Unique: z0xiPiE1MZGTjYv3zq48oQ-1 From: Thomas Huth To: qemu-devel@nongnu.org, Peter Maydell , Daniel Berrange , Paolo Bonzini Cc: Markus Armbruster , =?UTF-8?q?Alex=20Benn=C3=A9e?= , qemu-arm@nongnu.org, Maxim Levitsky , libvir-list@redhat.com, Richard Henderson , xen-devel@lists.xenproject.org, Reinoud Zandijk Subject: [PATCH v2 5/6] docs/about/deprecated: Deprecate 32-bit arm hosts Date: Thu, 2 Mar 2023 17:31:05 +0100 Message-Id: <20230302163106.465559-6-thuth@redhat.com> In-Reply-To: <20230302163106.465559-1-thuth@redhat.com> References: <20230302163106.465559-1-thuth@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.1 on 10.11.54.1 X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1677774712856100004 Content-Type: text/plain; charset="utf-8" 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. Signed-off-by: Thomas Huth Reviewed-by: Daniel P. Berrang=C3=A9 Reviewed-by: Wilfred Mallawa --- docs/about/deprecated.rst | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index 21ce70b5c9..c7113a7510 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -229,6 +229,15 @@ 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