From nobody Thu May 8 20:32:20 2025
Delivered-To: importer@patchew.org
Authentication-Results: mx.zohomail.com;
dkim=pass;
spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as
permitted sender)
smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org;
dmarc=pass(p=none dis=none) header.from=linaro.org
ARC-Seal: i=1; a=rsa-sha256; t=1650541774; cv=none;
d=zohomail.com; s=zohoarc;
b=Ukrdnifv+si5KGppQFR0Z1ZbsrYQXh3HSftRJyL5ZWhsFWibdWxvvxYjXR7nZ2ap45OxuFkZA7TYaY1ACqsu8rOqzb382f1Wt8jvX7KEHmI2Kd8Bo/W21Tm/XXyIwTjN+XGk4CNGciAHuuPF6hrhvVrbqBwf4F9lW3kvo2T20ro=
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com;
s=zohoarc;
t=1650541774;
h=Content-Transfer-Encoding:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To;
bh=iC1dx7osygPCKxzESmzHpFu3XuxeglPRcqZ1T2HastM=;
b=MQX06aW+Oflc3iVLf8bmFDyV70/NhpFhGflpWbN1xj9T0QxLutP2Tu+ayXyuT3B0GC+EYdNG9kxgfbnxkQn6tgttfLfyh/OoVavEc8B3WdgcfuYtzjCxshRn0UQBl2GRhNVaViunfkzmUoKzZgi1q4rISSGWqJtxIGr+nINcUMs=
ARC-Authentication-Results: i=1; mx.zohomail.com;
dkim=pass;
spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as
permitted sender)
smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org;
dmarc=pass header.from=<peter.maydell@linaro.org> (p=none dis=none)
Return-Path: <qemu-devel-bounces+importer=patchew.org@nongnu.org>
Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by
mx.zohomail.com
with SMTPS id 1650541774258425.2708305435392;
Thu, 21 Apr 2022 04:49:34 -0700 (PDT)
Received: from localhost ([::1]:60380 helo=lists1p.gnu.org)
by lists.gnu.org with esmtp (Exim 4.90_1)
(envelope-from <qemu-devel-bounces+importer=patchew.org@nongnu.org>)
id 1nhVJV-0003tk-7a
for importer@patchew.org; Thu, 21 Apr 2022 07:49:33 -0400
Received: from eggs.gnu.org ([2001:470:142:3::10]:59562)
by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
(Exim 4.90_1) (envelope-from <peter.maydell@linaro.org>)
id 1nhUqR-0003Gm-QY
for qemu-devel@nongnu.org; Thu, 21 Apr 2022 07:19:31 -0400
Received: from mail-wr1-x431.google.com ([2a00:1450:4864:20::431]:43848)
by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)
(Exim 4.90_1) (envelope-from <peter.maydell@linaro.org>)
id 1nhUqM-0003YY-9z
for qemu-devel@nongnu.org; Thu, 21 Apr 2022 07:19:27 -0400
Received: by mail-wr1-x431.google.com with SMTP id g18so6191583wrb.10
for <qemu-devel@nongnu.org>; Thu, 21 Apr 2022 04:19:17 -0700 (PDT)
Received: from orth.archaic.org.uk (orth.archaic.org.uk. [2001:8b0:1d0::2])
by smtp.gmail.com with ESMTPSA id
e4-20020a5d6d04000000b0020a8bbbb72bsm2597694wrq.97.2022.04.21.04.19.15
for <qemu-devel@nongnu.org>
(version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
Thu, 21 Apr 2022 04:19:16 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google;
h=from:to:subject:date:message-id:in-reply-to:references:mime-version
:content-transfer-encoding;
bh=iC1dx7osygPCKxzESmzHpFu3XuxeglPRcqZ1T2HastM=;
b=KO5f4YOle1iTvySe8e1oM8XoLsD3opyfMk7EHr9qLoXEljVzTy9UCGkrsm67mujFSE
yFV3ubjfceRnCsm2Xh9B8zymzZHonJcizS144dnoSMjI1gp/sQC3IsKo83zzWHRm8K6i
MueX/HLArfBIX3LRREDodrqrEyKRYtYn7tsGfGv1GTkPf32zo4xVR6Lwk0+Dm043FOW6
DJW3jP1qUCSmJtvo2W3c1X1AQVkih8yAUiksLEiUYKnc+7cTgujnqFpSqa08O2pn5JXC
DxxXymm/QBJd0V9lTHepTyTrLPWCzqmjKAH4C7uB71Eu7Sb/NSsthHLAIzgfJ8R9yDXH
KhQQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=1e100.net; s=20210112;
h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to
:references:mime-version:content-transfer-encoding;
bh=iC1dx7osygPCKxzESmzHpFu3XuxeglPRcqZ1T2HastM=;
b=cOCXQFyT06BSpmls5obUacojczcIyHw8W3Oi6uuEuKeBncKg7y4GJFShcgkXtHP+o3
yTUt45v3kJt1y5vgmrI+N7/Vo6jS1gw3jqXPAs91RzliloqOwMrkaxVVKXdPKpSWEKqd
iYk4gBayl1DpBYjHc5PfERcvJvg3xve4+ITIfKXwZy3T474B0C9z4qpQQQHqBdVAffkq
39VTib0KaFJ1XYxt/mVvaAXh/u8TOdQYHNh9xERb7Gk0MgS5I5k5C5G8E+6V8TuimJ6h
lhlREBWT9XTZcNOOY+j7YCVmqvAeFD2FEUSjmIQodAY1jqqfGOuA1zOGtGJTv4sylEdh
mIFQ==
X-Gm-Message-State: AOAM532h31477bL3MO3+61lX5xToiAr819RsWIlytyJEEoERYXFRrGt1
if65QoxxjW/yQ49Q+a3K1vcV4vZ94GKF3w==
X-Google-Smtp-Source:
ABdhPJzMzgNdV+BiGH2etqFG4Tp8Yza2v38bu0+s0+OVITDvMkw/bjaXVYTfTV0yAZwjqzkbAy2sAQ==
X-Received: by 2002:a05:6000:2cb:b0:20a:88c4:ec9f with SMTP id
o11-20020a05600002cb00b0020a88c4ec9fmr18060790wry.43.1650539956750;
Thu, 21 Apr 2022 04:19:16 -0700 (PDT)
From: Peter Maydell <peter.maydell@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PULL 29/31] hw/arm/virt: impact of gic-version on max CPUs
Date: Thu, 21 Apr 2022 12:18:44 +0100
Message-Id: <20220421111846.2011565-30-peter.maydell@linaro.org>
X-Mailer: git-send-email 2.25.1
In-Reply-To: <20220421111846.2011565-1-peter.maydell@linaro.org>
References: <20220421111846.2011565-1-peter.maydell@linaro.org>
MIME-Version: 1.0
Content-Transfer-Encoding: quoted-printable
Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17
as permitted sender) client-ip=209.51.188.17;
envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org;
helo=lists.gnu.org;
Received-SPF: pass client-ip=2a00:1450:4864:20::431;
envelope-from=peter.maydell@linaro.org; helo=mail-wr1-x431.google.com
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, DKIM_SIGNED=0.1,
DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,
RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001,
T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no
X-Spam_action: no action
X-BeenThere: qemu-devel@nongnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: <qemu-devel.nongnu.org>
List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>,
<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <https://lists.nongnu.org/archive/html/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>,
<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org
Sender: "Qemu-devel" <qemu-devel-bounces+importer=patchew.org@nongnu.org>
X-ZohoMail-DKIM: pass (identity @linaro.org)
X-ZM-MESSAGEID: 1650541774968100002
Content-Type: text/plain; charset="utf-8"
From: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Describe that the gic-version influences the maximum number of CPUs.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Message-id: 20220413231456.35811-1-heinrich.schuchardt@canonical.com
[PMM: minor punctuation tweaks]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
docs/system/arm/virt.rst | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/docs/system/arm/virt.rst b/docs/system/arm/virt.rst
index 1544632b674..1297dff5228 100644
--- a/docs/system/arm/virt.rst
+++ b/docs/system/arm/virt.rst
@@ -96,9 +96,9 @@ gic-version
Valid values are:
=20
``2``
- GICv2
+ GICv2. Note that this limits the number of CPUs to 8.
``3``
- GICv3
+ GICv3. This allows up to 512 CPUs.
``host``
Use the same GIC version the host provides, when using KVM
``max``
--=20
2.25.1