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docs: Improve vfio-user documentation

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Change the block size to the standard 512 byte sector size to that
disk images can be used (since their partition tables will be specified
in terms of 512 byte sectors.)

Also remove the hugepages=on option from the command line as it is not
necessary.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2021-08-12 12:42:22 +00:00
parent 0bad764462
commit ea5a050341
1 changed files with 2 additions and 3 deletions
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docs/vfio-user.md
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@ -45,7 +45,6 @@ Use SPDK: https://github.com/spdk/spdk
Compile with `./configure --with-vfio-user` Compile with `./configure --with-vfio-user`
Create an NVMe controller listening on a vfio-user socket with a simple block device: Create an NVMe controller listening on a vfio-user socket with a simple block device:
```sh ```sh
@ -59,7 +58,7 @@ sleep 2
sudo ./scripts/rpc.py nvmf_create_transport -t VFIOUSER sudo ./scripts/rpc.py nvmf_create_transport -t VFIOUSER
sudo rm -rf /tmp/nvme-vfio-user sudo rm -rf /tmp/nvme-vfio-user
sudo mkdir -p /tmp/nvme-vfio-user sudo mkdir -p /tmp/nvme-vfio-user
sudo ./scripts/rpc.py bdev_aio_create ~/images/test-disk.raw test 4096 sudo ./scripts/rpc.py bdev_aio_create ~/images/test-disk.raw test 512
sudo ./scripts/rpc.py nvmf_create_subsystem nqn.2019-07.io.spdk:cnode -a -s test sudo ./scripts/rpc.py nvmf_create_subsystem nqn.2019-07.io.spdk:cnode -a -s test
sudo ./scripts/rpc.py nvmf_subsystem_add_ns nqn.2019-07.io.spdk:cnode test sudo ./scripts/rpc.py nvmf_subsystem_add_ns nqn.2019-07.io.spdk:cnode test
sudo ./scripts/rpc.py nvmf_subsystem_add_listener nqn.2019-07.io.spdk:cnode -t VFIOUSER -a /tmp/nvme-vfio-user -s 0 sudo ./scripts/rpc.py nvmf_subsystem_add_listener nqn.2019-07.io.spdk:cnode -t VFIOUSER -a /tmp/nvme-vfio-user -s 0
@ -70,7 +69,7 @@ Start Cloud Hypervisor:
```sh ```sh
target/debug/cloud-hypervisor \ target/debug/cloud-hypervisor \
--memory size=1G,shared=on,hugepages=on \ --memory size=1G,shared=on \
--disk path=~/images/focal-server-cloudimg-amd64.raw \ --disk path=~/images/focal-server-cloudimg-amd64.raw \
--kernel ~/src/linux/vmlinux \ --kernel ~/src/linux/vmlinux \
--cmdline "root=/dev/vda1 console=hvc0" \ --cmdline "root=/dev/vda1 console=hvc0" \