cpu: Add AppleVirtCPU (KvmCPU equiv for Apple hosts)#3076
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BobbyRBruce wants to merge 1 commit intogem5:developfrom
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cpu: Add AppleVirtCPU (KvmCPU equiv for Apple hosts)#3076BobbyRBruce wants to merge 1 commit intogem5:developfrom
AppleVirtCPU (KvmCPU equiv for Apple hosts)#3076BobbyRBruce wants to merge 1 commit intogem5:developfrom
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Usage Notes ----------- For security purposes, apple requires binaries which require user of the hypervisor to be signed. Therefore the following is required to sign the gem5 executable to run correctly on Apple hosts: ```shell cat > hv.entitlements.plist <<'EOF' <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"\> <plist version="1.0"> <dict> <key>com.apple.security.hypervisor</key> <true/> </dict> </plist> EOF codesign -f -s - --entitlements hv.entitlements.plist ./build/ALL/gem5.opt ``` Example Script -------------- ```shell ./build/ALL/gem5.opt configs/example/apple_virt_simple.py ```
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KvmCPU equip for Apple hosts) AppleVirtCPU (KvmCPU equiv for Apple hosts)
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Note to self: For signing the binary, I can have this are part of the scons building process: sign_identity = ARGUMENTS.get('SIGN_IDENTITY', '-')
entitlements = '#/build_opts/macos/virtualization.entitlements' # Create this
binary = '{path to gem5 bin}' # Whatever way SCons allows us to get this
Command(
action=f'codesign --force --sign "{sign_identity}" --entitlements "{entitlements}" "{binary}"
)Though it needs to check we're running on an Apple host with Apple Virtualization enabled. |
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I would suggest starting with full system simulation. It's going to be a lot easier to get that working that SE mode. SE mode with KVM has all sorts of complications. |
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((Just a draft, not ready for review. Still work to be done))
I was testing this on the config script provided in this PR (a simple SE mode hello-world simulation) and while it does load the simulated hardware with a CPU core that utilizes Apple virtualization, it fails due to :
I don't know exactly how close this is to completion but there's certainly some stuff left to do.
Usage Notes
For security purposes, apple requires binaries which require user of the
hypervisor to be signed. Therefore the following is required to sign the
gem5 executable to run correctly on Apple hosts:
Example Script