[DOCS] Update docs.

README.md

@@ -1,13 +1,13 @@
 # macOS-Simple-KVM
-Documentation to set up a simple Q35 VM based in QEMU, accelerated by KVM.
+Documentation to set up a simple macOS VM in QEMU, accelerated by KVM.
 
-Better instructions will be available in the future, but for now, here's how to get started:
+Here's how to get started:
 
 ## Dependencies
-You need to have `qemu`, `python` and the KVM extensions installed for this project.
+You'll need a Linux system with `qemu`, `python` and the KVM extensions installed for this project. A Mac is **not** required.
 
 ## Step 1
-Run `jumpstart.sh` to get some basic installation media for macOS.
+Run `jumpstart.sh` to fetch installation media for macOS (internet required). The default installation uses High Sierra.
 
 ## Step 2
 Create an empty hard disk using `qemu-img`
@@ -24,4 +24,7 @@ and add it to the end of `basic.sh`
 Then run `basic.sh` to start the machine and install macOS.
 
 ## Step 3
-Look at the `docs` folder for more information on adding passthrough hardware, set up tunnel networking, and enable sound features.
+
+You're done!
+
+Look in the `docs` folder for more information on adding passthrough hardware (for GPU graphics), set up bridged networking, and enabling sound features.

docs/guide-networking.md

@@ -44,3 +44,10 @@ nmcli connection add type tun \
 nmcli connection mod mytap connection.slave-type bridge \
     connection.master br1
 ```
+
+## Attach Bridge to QEMU
+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.
+
+```
+    -netdev tap,id=net0,ifname=tap0,script=no,downscript=no \
+```

docs/guide-passthrough.md

@@ -40,6 +40,8 @@ To do this permanently, you can add it to your bootloader. If you're using GRUB,
 ## Attach card to QEMU
 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. 
 
+**Note:** You may need to run `basic.sh` as sudo for the card to work.
+
 ```
     -vga none \
     -device ioh3420,bus=pcie.0,multifunction=on,port=1,chassis=1,id=port.1 \

docs/guide-performance.md

@@ -0,0 +1,24 @@
+Guide to Performance Tuning
+===========================
+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.
+
+Here's some tunable parameters to get the most of out QEMU:
+
+## Memory
+The following line controls memory allocation. The default is 2GB of RAM.
+
+Increase this as needed (limited to the real amount of memory in your machine).
+```
+    -m 2G \
+```
+
+## Cores
+The default configuration enables 4 threads, each with 2 cores.
+```
+    -smp 4,cores=2 \
+```
+
+The following example describes all possible topology configurations:
+```
+    -smp cores=4,threads=4,sockets=1 \
+```