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([38.39.164.180]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-72aad90b302sm1624733b3a.175.2024.12.19.10.32.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 19 Dec 2024 10:32:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1734633137; x=1735237937; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=VrAuDbFs90HcBriKC3fRwSGZ9LUrKAcdlzz9HBsoE2g=; b=TBD4mrezylnX8VJ8/Np0CukWli3N2MSwHuVVZEeqjH+Uthdo3Mc3FTtZKxvrUktzPQ zMpIj6HdURrCHyrKYlIG6JTagp/RyfI/jS6hi8I66cJNNUyK9oGSBvS5zaIUPf+//sQa 5K/ch0RaS4Z9sJH4xBUatKs+OM9tQ/bk4v/g9dtDObHejzf4jkx2HJQKNSZyVVIqpeqp MXviFIelO0ES6hg9ir+CKfccEJ7BR4aWPuBQEMQUxiDDDZEV2+M1dgeuEkOLpqcEmJnT LhI3peTwsHfxLCYGhW+A/s8kLQKQSsJ72O1iU4n+kyuGLmhuyNhFLGI436G7zWjPCeRK 8LvQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1734633137; x=1735237937; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=VrAuDbFs90HcBriKC3fRwSGZ9LUrKAcdlzz9HBsoE2g=; b=PjSIvlHDRRfbcC2vXi2FLZftvT5hy6gv8Yz44cIMM5eflexj7uyOf9n380IVZU5Xl7 COp69Ti8zbDzOxgufFioWOoLvi99JKc7rjefdhmbD94RR2hy/+mi3AwFSzCBgjcpZf52 HMAKenOH1e9J8J2/OTOBjEl/100BMy4QRtDeStMMpCR0vU0+CTwTJpcXGomseGq00hwS sMQbd+G1hqSyZL1FS/Hkc8WEmjd5UtQDRu0TTEIiWH2ZzhpUCamn/hSpiobSAg8A4EB0 reLpmIFM9l0mTDH3UfzDAPURTiDM9qUGSiAcoTKUcVoWlKOiLvk+uUQcFhjHZ0vdTJlp ZFnA== X-Gm-Message-State: AOJu0YzQwLzfelWxbPRf9mdTtpaBBN5RIna2aO7SJuqf6EDcGeG3ozOI fC7DNF/S47RB2zlUFLoN03UsggdN86toGpK8r/7r7R/Kd+26wFc3THCZNItro8w/bjBCUz/te5u bBJw= X-Gm-Gg: ASbGncuFVJocDba+hop6tamdYaSq61vaKdTTiF5LPWYuguuxV8LcUTjCdvmS9uiW4FO MqA61Ne9CGslAy7/6fUzkQgcvhpCxF+H/wH7rSNi3nBQvlT3G2KAmCYU8NHMTb55uS09wpu4YmU f7pwAUpbMofepJHwHezNzKkO4o0EB/rMoDoABqnuWmeHr3HOGk8cJVp9nPcqTGvjob+WNLr3Kx0 T5EpXN168juJDq/v7Og8ZcCc6J0uGoobvPE50koObJOCqEtiWcL0XZf X-Google-Smtp-Source: AGHT+IErQi05wuFbtGW97Qfm0HdyAPfmS5ZIe6ijwUVMBvi4kz/COnJBsO0HHGKLbBRPi5jPh0/OtQ== X-Received: by 2002:a05:6a00:2189:b0:725:f212:12e5 with SMTP id d2e1a72fcca58-72abb5dcc67mr762718b3a.24.1734633136923; Thu, 19 Dec 2024 10:32:16 -0800 (PST) From: Pierrick Bouvier To: qemu-devel@nongnu.org Cc: Eduardo Habkost , Fabiano Rosas , Peter Maydell , Yanan Wang , Zhao Liu , qemu-arm@nongnu.org, Laurent Vivier , alex.bennee@linaro.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , Marcel Apfelbaum , Pierrick Bouvier Subject: [PATCH v2 3/3] docs/system/arm/virt: mention specific migration information Date: Thu, 19 Dec 2024 10:32:11 -0800 Message-Id: <20241219183211.3493974-4-pierrick.bouvier@linaro.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241219183211.3493974-1-pierrick.bouvier@linaro.org> References: <20241219183211.3493974-1-pierrick.bouvier@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=2607:f8b0:4864:20::42e; envelope-from=pierrick.bouvier@linaro.org; helo=mail-pf1-x42e.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, WEIRD_QUOTING=0.001 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: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1734633211203116600 Content-Type: text/plain; charset="utf-8" Signed-off-by: Pierrick Bouvier --- docs/system/arm/virt.rst | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/docs/system/arm/virt.rst b/docs/system/arm/virt.rst index d25275c27ce..9f1457cf9a2 100644 --- a/docs/system/arm/virt.rst +++ b/docs/system/arm/virt.rst @@ -17,9 +17,17 @@ to have the same behaviour as that of previous QEMU rele= ases, so that VM migration will work between QEMU versions. For instance the ``virt-5.0`` machine type will behave like the ``virt`` machine from the QEMU 5.0 release, and migration should work between ``virt-5.0`` -of the 5.0 release and ``virt-5.0`` of the 5.1 release. Migration -is not guaranteed to work between different QEMU releases for -the non-versioned ``virt`` machine type. +of the 5.0 release and ``virt-5.0`` of the 5.1 release. + +When saving a VM using the ``virt`` model, the snapshot is automatically s= et to +target the latest ``virt`` versioned model. When loading the VM with a more +recent QEMU version, you'll need to set machine model to match the version= of +your snapshot. When loading it, QEMU will return an error with the expected +``virt`` version you should set, so you don't need to record it. + +VM migration is not guaranteed when using ``-cpu max``, as features suppor= ted +may change between QEMU versions. To ensure your VM can be migrated, it is +recommended to use another cpu model instead. =20 Supported devices """"""""""""""""" --=20 2.39.5