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[DOCS] Update docs.
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README.md
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README.md
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# macOS-Simple-KVM
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Documentation to set up a simple Q35 VM based in QEMU, accelerated by KVM.
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Documentation to set up a simple macOS VM in QEMU, accelerated by KVM.
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Better instructions will be available in the future, but for now, here's how to get started:
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Here's how to get started:
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## Dependencies
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You need to have `qemu`, `python` and the KVM extensions installed for this project.
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You'll need a Linux system with `qemu`, `python` and the KVM extensions installed for this project. A Mac is **not** required.
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## Step 1
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Run `jumpstart.sh` to get some basic installation media for macOS.
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Run `jumpstart.sh` to fetch installation media for macOS (internet required). The default installation uses High Sierra.
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## Step 2
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## Step 2
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Create an empty hard disk using `qemu-img`
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```
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qemu-img create -f qcow2 MyDisk.qcow2 64G
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@ -24,4 +24,7 @@ and add it to the end of `basic.sh`
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Then run `basic.sh` to start the machine and install macOS.
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## Step 3
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Look at the `docs` folder for more information on adding passthrough hardware, set up tunnel networking, and enable sound features.
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You're done!
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Look in the `docs` folder for more information on adding passthrough hardware (for GPU graphics), set up bridged networking, and enabling sound features.
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@ -44,3 +44,10 @@ nmcli connection add type tun \
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nmcli connection mod mytap connection.slave-type bridge \
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connection.master br1
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```
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## Attach Bridge to QEMU
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Once you have set up the bridge and tun/tap on the host, you'll have to add the following line to `basic.sh`, replacing `-netdev user,id=net0`. Change `tap0` to your corresponding device name.
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```
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-netdev tap,id=net0,ifname=tap0,script=no,downscript=no \
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```
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@ -38,7 +38,9 @@ iommu=pt intel_iommu=on vfio-pci.ids=1002:66af,1002:ab20
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To do this permanently, you can add it to your bootloader. If you're using GRUB, for example, edit `/etc/default/grub` and add the previous lines to the `GRUB_CMDLINE_LINUX_DEFAULT` section, then run `sudo update-grub` and reboot.
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## Attach card to QEMU
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You will need to attach the cards using the BDF IDs for the audio and video controller. The following example shows the config for a card with two devices. The romfile parameter is optional.
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You will need to attach the cards using the BDF IDs for the audio and video controller. The following example shows the config for a card with two devices. The romfile parameter is optional.
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**Note:** You may need to run `basic.sh` as sudo for the card to work.
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```
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-vga none \
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docs/guide-performance.md
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docs/guide-performance.md
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Guide to Performance Tuning
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===========================
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The default macOS VM configuration (`basic.sh`) assumes some sane defaults, however this may not reflect the actual topology or peformance capabilities of the underlaying machine.
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Here's some tunable parameters to get the most of out QEMU:
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## Memory
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The following line controls memory allocation. The default is 2GB of RAM.
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Increase this as needed (limited to the real amount of memory in your machine).
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```
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-m 2G \
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```
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## Cores
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The default configuration enables 4 threads, each with 2 cores.
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```
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-smp 4,cores=2 \
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```
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The following example describes all possible topology configurations:
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```
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-smp cores=4,threads=4,sockets=1 \
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```
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