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# KVM-Opencore
-Opencore Configuration of KVM Hackintosh with tweaks.
-We propose best practice for KVM users.
+This is a fork of [Leoyzen's OpenCore image](https://github.com/leoyzen/KVM-Opencore) for QEMU/KVM,
+which I've extended to add a build system for automatically buliding all of the required files from
+sourcecode, and to keep up with the latest OpenCore changes.
-# Status
+It is currently tested to boot macOS Catalina and macOS Big Sur, but will likely also boot older
+versions of macOS.
-* OS: tested in Catalina 10.15.x
-* Opencore: 0.5.6
- * NVRAM: native
- * AppleHotKey: works
- * FileVault: un-tested
- * Boot-Audio: works with onboard audio passthrough
- * OVMF: you can use latest version other than the old way(patched one). see issues.
-* SMBIOS: iMacPro1,1
-* NIC: vmxnet3/e1000-82545em/passthrough
-* CPU:
- * Penryn: works, using patches to enable leaf7 support for better performance
- * Intel Host-Passthrough: works, but with patches and remove topology line
- * AMD Host-PassThrough: works, but with AMD-Vanilla patches
-* GPU Passthrough: works
- * HDMI/DP Audio: works
- * Metal Support: works
- * H264 Hardware Decoding: works
- * H265 Hardware Decoding: works
-* Handoff: works with specific Wifi/Bluetooth
-* USB(Passthrough): works
-* Power Manages
- * Sleep: works, see details below.
- * EC: faked one
- * USB Power: works even with USB3 passthrough
- * CPU AGPM: wo don't need CPU AGPM because hypervisor handled it well, this is for GPU AGPM
- * GPU AGPM: works
+Although the images offered here should work on all QEMU/KVM distributions, I specifically build
+and test these for my Proxmox Hackintosh guide here:
-# Usage
-1. Download the repository and put the EFI under your EFI disk
+https://www.nicksherlock.com/2020/06/installing-macos-big-sur-on-proxmox/
-# Manual
-## Libvirt XML
-See more in [libvirt.xml](https://github.com/Leoyzen/KVM-Opencore/blob/master/libvirt.xml).
-## SMBios
-Comparing with normal hackintosh setup, we have only limited choices here(because we don't have an iGPU).
-* iMacPro1,1(Prefer)
-* MacPro7,1
-
-## CPU
-### Models Selection
-You have three options to choose: Penryn, Passthrough, Emulating Model.
-
-#### Penryn
-Penryn is the safest choice in Hackintosh VM, it is classic, similar with virtualized enviroment, and Apple wrote native code to support it.
-But we should do something to make it work more than that:
-
-1. You should passthrough some important cpuid features which don't included in Penryn Model, such as:
- * invtsc: latest MacOS won't boot without it
- * AVX: latest MacOS won't boot without it
- * FMA: metal support needs this
- * AVX2
- * BMI1
- * BMI2
- * kvm=on: QEMU use it to expose Hypervisor leaf node, which MacOS use it to determine the invtsc frequency from hypervisor node.
- * ~~vmware-cpu-freq=on~~: no more need, QEMU enabled it by default.
-2. Add patch(from AMD-Vanilla) to support leaf7 cpuid features support
- * otherwise Apple won't use some important feature like AVX
- * can be check with `sysctl -a|grep machdep.cpu.leaf7_features` to see whether AVX/AVX2 is included.
-
-#### Passthrough
-#### Intel
-If you are using most recent generation Intel CPU(newer than Penryn), then you can just passthrough your cpu type with `mode='host-passthrough'`.
-
-##### AMD
-You can passthrough amd process too, but with [AMD-Vanilla patches](https://github.com/AMD-OSX/AMD_Vanilla) like bare metal hackintosh.
-
-### Other Notes about CPU
-#### Irregular Topology
-If you wanna assign an irregular topology (like 3-cores/6-threads or 5-cores/5-threads), you should fake a topology, otherwise you will get a kernel panic.
-Details can be found [here](https://github.com/Leoyzen/KVM-Opencore/issues/1).
-```xml
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-#### Unknown CPU Name
-If you find unknown cpu model in you system info, you can change it by specify the ProcessorType in SMBios Section of config.plist.
-Choices can be found in [here](https://github.com/acidanthera/EfiPkg/blob/master/Include/IndustryStandard/AppleSmBios.h).
-
-Example, if you have or emulate a skylake-server processor, you can use 0x0F01(Xeon-W):
-```
-// <0F01> 08 cores Intel Xeon W Intel Xeon W
-// <0F01> 10 cores Intel Xeon W Intel Xeon W
-// <0F01> 14 cores Intel Xeon W Intel Xeon W
-// <0F01> 18 cores Intel Xeon W Intel Xeon W
-```
-Notes, the cores should be matched too, or you can fake some disable cores to match the topology.
-Then you can specify 3841(0x0F01 in decimal) in ProcessorType section.
-
-## GPU
-GPU passthrough is a good way to gain smooth experience in MacOS.If you do so, make sure you doing things right.
-__You have to make sure you put the gfx and graphic audio in the same bus but different function, otherwise DP/HDMI audio, Metal Support, HW Accuration won't work__.
-```xml
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-```
-If you did it right, then there is no much differeces between VM and normal setup procedure, just adding Lilu/WEG/AppleALC then the Metal/H264/H265 HW/HDMI Audio will work well in most case.
-
-## USB
-We use EHC/UHC from qemu now(XHCI(nec/qemu) can't be recognized by MacOS now).
-USB port mapping(EHC) and USB Power injection(with fake EC ioreg) are already included in config.plist.
-
-# Known Problems/Help
-see issues.
\ No newline at end of file
+Note that although the images in the Releases have filenames like OpenCore-v10.iso, these aren't
+real ISOs, but rather raw hard disk images, and need to be booted as such. (They're just using .iso
+extensions so they'll appear in Proxmox's disk image picker).