From mboxrd@z Thu Jan 1 00:00:00 1970 From: Romain Naour Date: Mon, 13 Jul 2020 23:24:17 +0200 Subject: [Buildroot] [PATCH 4/4] board/qemu/aarch64-virt/linux.config: enable memory hotplug In-Reply-To: <20200712212704.43b4671a@windsurf.home> References: <20200712163422.1162187-1-romain.naour@gmail.com> <20200712163422.1162187-4-romain.naour@gmail.com> <20200712212704.43b4671a@windsurf.home> Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Hi Thomas, Le 12/07/2020 ? 21:27, Thomas Petazzoni a ?crit?: > On Sun, 12 Jul 2020 18:34:22 +0200 > Romain Naour wrote: > >> To test memory hotplug [1], add -m 1G,slots=3,maxmem=4G to the qemu command >> line, boot the system and enter the following command in the Qemu monitor >> to add another 1GB to the guest: >> (use ctrl+a c to switch from the serial port and Qemu monitor): >> >> (qemu) object_add memory-backend-ram,id=mem1,size=1G >> (qemu) device_add pc-dimm,id=dimm1,memdev=mem1 >> >> [1] https://git.qemu.org/?p=qemu.git;a=blob;f=docs/memory-hotplug.txt;h=6aa5e17e26090f619787de7b71888093fb9d0117;hb=fdd76fecdde1ad444ff4deb7f1c4f7e4a1ef97d6#l9 >> >> Signed-off-by: Romain Naour > > Is this really something we want to enable in a defconfig ? It feels > like a very advanced/specific feature, not really relevant for a > demo/test defconfig IMO. We just the required kernel options need for memory hot-plug, the Qemu command line in the readme.txt is keep as is. Best regards, Romain > > Thomas >