I'm using yocto to generate a riscv32 image but qemu seems to be ignoring the -m argument from the command line and forcing the image to run with 988MB of RAM.
Is there any way I can increase it to 4G?
I'm using the following cmdline to start qemu:
qemu-system-riscv32 -nographic -machine virt -m 4G -smp 8 -bios /home/mgadelha/tools/poky/build/tmp/deploy/images/qemuriscv32/fw_jump.elf -kernel /home/mgadelha/tools/poky/build/tmp/deploy/images/qemuriscv32/Image -append "root=/dev/vda rw mem=4G" -drive id=disk0,file=/home/mgadelha/tools/poky/build/tmp/deploy/images/qemuriscv32/core-image-full-cmdline-qemuriscv32-20230415202008.rootfs.ext4,if=none,format=raw -device virtio-net-device,netdev=usernet -netdev user,id=usernet,hostfwd=tcp::22222-:22 -device virtio-blk-device,drive=disk0 -object rng-random,filename=/dev/urandom,id=rng0 -device virtio-rng-pci,rng=rng0 -device virtio-tablet-pci -device virtio-keyboard-pci
Well, it actually doesn't start if I use -m 4G, but any value lower than that is fine.
I see that the kernel prints:
[ 0.000000] Memory limited to 1024MB
so maybe it's a kernel limitation rather than qemu?
--