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Tsirkin" , Ani Sinha , Dongjiu Geng , linux-kernel@vger.kernel.org, qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: Re: [PATCH v9 01/12] acpi/ghes: add a firmware file with HEST address Message-ID: <20241001105426.48598baa@sal.lan> In-Reply-To: <20240916130506.293ab543@imammedo.users.ipa.redhat.com> References: <34dd38395f29f57a19aef299bafdff9442830ed3.1724556967.git.mchehab+huawei@kernel.org> <20240911155108.190f0fdf@imammedo.users.ipa.redhat.com> <20240913074435.0eea2552@foz.lan> <20240913152518.2f80ab1e@imammedo.users.ipa.redhat.com> <20240914073314.46368ff6@foz.lan> <20240916130506.293ab543@imammedo.users.ipa.redhat.com> X-Mailer: Claws Mail 4.3.0 (GTK 3.24.43; x86_64-redhat-linux-gnu) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-TUID: 2SIpKBEwrxBZ Em Mon, 16 Sep 2024 13:05:06 +0200 Igor Mammedov escreveu: > > But no idea how to start a machine using a saved state. > > see https://www.linux-kvm.org/page/Migration > 'savevm/loadvm to an external state file (using pseudo-migration)' section > It didn't work. Is migration currently working between 9.1 and 9.2? I did a compilation of qemu version v9.1.0-rc0 and saved the state. Then, on vanilla 9.2 (changeset 01dc65a3bc26), I tried to restore the state with both "virt" and "virt-9.1". None worked: $ qemu-system-aarch64 -m 4g,maxmem=8G,slots=8 -M type=virt-9.1,nvdimm=on,gic-version=3,ras=on -cpu max -smp 4 -numa node,nodeid=0,cpus=0-3,memdev=mem0 --nographic -monitor telnet:127.0.0.1:1234,server,nowait -incoming "exec: gzip -c -d statefile.gz" -no-reboot -bios /new_devel/edac/emulator/QEMU_EFI-silent.fd -kernel /new_devel/edac/work/arm64_build/arch/arm64/boot/Image.gz -device pcie-root-port,id=root_port1 -device virtio-blk-pci,drive=hd -device virtio-net-pci,netdev=mynet,id=bob -drive if=none,file=/new_devel/edac/emulator/debian.qcow2,format=qcow2,id=hd -object memory-backend-ram,size=4G,id=mem0 -netdev type=user,id=mynet,hostfwd=tcp::5555-:22 -qmp tcp:localhost:4445,server=on,wait=off -append 'earlycon nomodeset root=/dev/vda1 fsck.mode=skip tp_printk maxcpus=4' qemu-system-aarch64: error while loading state for instance 0x0 of device 'cpu' qemu-system-aarch64: load of migration failed: Operation not permitted $ qemu-system-aarch64 -m 4g,maxmem=8G,slots=8 -M type=virt,nvdimm=on,gic-version=3,ras=on -cpu max -smp 4 -numa node,nodeid=0,cpus=0-3,memdev=mem0 --nographic -monitor telnet:127.0.0.1:1234,server,nowait -incoming "exec: gzip -c -d statefile.gz" -no-reboot -bios /new_devel/edac/emulator/QEMU_EFI-silent.fd -kernel /new_devel/edac/work/arm64_build/arch/arm64/boot/Image.gz -device pcie-root-port,id=root_port1 -device virtio-blk-pci,drive=hd -device virtio-net-pci,netdev=mynet,id=bob -drive if=none,file=/new_devel/edac/emulator/debian.qcow2,format=qcow2,id=hd -object memory-backend-ram,size=4G,id=mem0 -netdev type=user,id=mynet,hostfwd=tcp::5555-:22 -qmp tcp:localhost:4445,server=on,wait=off -append 'earlycon nomodeset root=/dev/vda1 fsck.mode=skip tp_printk maxcpus=4' qemu-system-aarch64: Machine type received is 'virt-9.1' and local is 'virt-9.2' qemu-system-aarch64: load of migration failed: Invalid argument Did I made something wrong? Regards, Mauro