Virtualization

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Create hardware-accelerated virtual machines to run macOS and Linux-based operating systems.

Posts under Virtualization tag

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Unable to Start macOS VM via Virtualization API in a Sandboxed Launchd Service
I’m encountering an issue when trying to start a macOS VM using Apple’s Virtualization framework in a sandboxed environment. When I create a standalone Xcode project, the VM launches successfully. However, when I integrate the same code into my existing project—where the VM is launched by a service started via launchd and running in a sandbox—it fails with the following error: Internal Virtualization Error: Failed to issue USB HCI sandbox extension To resolve this, I tried adding the com.apple.security.device.usb entitlement. But after doing that, the app started crashing with the following trace : Application Specific Signatures: SYSCALL_SET_USERLAND_PROFILE Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 libsystem_secinit.dylib 0x19a7141bc _libsecinit_appsandbox.cold.9 + 84 1 libsystem_secinit.dylib 0x19a713324 _libsecinit_appsandbox + 2080 2 libsystem_trace.dylib 0x18c2326cc _os_activity_initiate_impl + 64 3 libsystem_secinit.dylib 0x19a712ab0 _libsecinit_initializer + 80 4 libSystem.B.dylib 0x19a72a32c libSystem_initializer + 280 5 dyld 0x18c162efc invocation function for block in dyld4::Loader::findAndRunAllInitializers(dyld4::RuntimeState&) const + 444 6 dyld 0x18c19f864 invocation function for block in dyld3::MachOAnalyzer::forEachInitializer(Diagnostics&, dyld3::MachOAnalyzer::VMAddrConverter const&, void (unsigned int) block_pointer, void const*) const + 324 7 dyld 0x18c1bf58c invocation function for block in mach_o::Header::forEachSection(void (mach_o::Header::SectionInfo const&, bool&) block_pointer) const + 240 8 dyld 0x18c1bc318 mach_o::Header::forEachLoadCommand(void (load_command const*, bool&) block_pointer) const + 208 9 dyld 0x18c1bda58 mach_o::Header::forEachSection(void (mach_o::Header::SectionInfo const&, bool&) block_pointer) const + 124 10 dyld 0x18c19f334 dyld3::MachOAnalyzer::forEachInitializer(Diagnostics&, dyld3::MachOAnalyzer::VMAddrConverter const&, void (unsigned int) block_pointer, void const*) const + 516 11 dyld 0x18c162cb4 dyld4::Loader::findAndRunAllInitializers(dyld4::RuntimeState&) const + 176 12 dyld 0x18c16e530 dyld4::PrebuiltLoader::runInitializers(dyld4::RuntimeState&) const + 44 13 dyld 0x18c1848b0 dyld4::APIs::runAllInitializersForMain() + 88 14 dyld 0x18c147e00 dyld4::prepare(dyld4::APIs&, mach_o::Header const*) + 3092 15 dyld 0x18c1471d8 dyld4::start(dyld4::KernelArgs*, void*, void*)::$_0::operator()() const + 236 16 dyld 0x18c146b4c start + 6000 I suspect this might be due to the provisioning profile, which doesn’t seem to include the required entitlement. However, I haven’t found a way to explicitly add this entitlement to the provisioning profile. My questions are: How can I add com.apple.security.device.usb to the provisioning profile? Is there a way to confirm that adding this entitlement would resolve the issue? Are there recommended steps to debug and test Virtualization framework usage in a sandboxed environment (especially when launched as a service)? I also tried disabling SIP and AMFI, but the crash still occurs. Is there a better way to work around or test this in development? Any insights or suggestions would be greatly appreciated!
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Jun ’25
Apple Intelligence/ChatGPT in Virtual Machine
Can the Xcode 26 code assist feature be used in a macOS 26 virtual machine? I am not seeing a way to enable it... Also asking on https://github.com/insidegui/VirtualBuddy/discussions/524
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229
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Jun ’25
Unable to Start macOS VM via Virtualization API in a Sandboxed Launchd Service
I’m encountering an issue when trying to start a macOS VM using Apple’s Virtualization framework in a sandboxed environment. When I create a standalone Xcode project, the VM launches successfully. However, when I integrate the same code into my existing project—where the VM is launched by a service started via launchd and running in a sandbox—it fails with the following error: Internal Virtualization Error: Failed to issue USB HCI sandbox extension To resolve this, I tried adding the com.apple.security.device.usb entitlement. But after doing that, the app started crashing with the following trace : Application Specific Signatures: SYSCALL_SET_USERLAND_PROFILE Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 libsystem_secinit.dylib 0x19a7141bc _libsecinit_appsandbox.cold.9 + 84 1 libsystem_secinit.dylib 0x19a713324 _libsecinit_appsandbox + 2080 2 libsystem_trace.dylib 0x18c2326cc _os_activity_initiate_impl + 64 3 libsystem_secinit.dylib 0x19a712ab0 _libsecinit_initializer + 80 4 libSystem.B.dylib 0x19a72a32c libSystem_initializer + 280 5 dyld 0x18c162efc invocation function for block in dyld4::Loader::findAndRunAllInitializers(dyld4::RuntimeState&) const + 444 6 dyld 0x18c19f864 invocation function for block in dyld3::MachOAnalyzer::forEachInitializer(Diagnostics&, dyld3::MachOAnalyzer::VMAddrConverter const&, void (unsigned int) block_pointer, void const*) const + 324 7 dyld 0x18c1bf58c invocation function for block in mach_o::Header::forEachSection(void (mach_o::Header::SectionInfo const&, bool&) block_pointer) const + 240 8 dyld 0x18c1bc318 mach_o::Header::forEachLoadCommand(void (load_command const*, bool&) block_pointer) const + 208 9 dyld 0x18c1bda58 mach_o::Header::forEachSection(void (mach_o::Header::SectionInfo const&, bool&) block_pointer) const + 124 10 dyld 0x18c19f334 dyld3::MachOAnalyzer::forEachInitializer(Diagnostics&, dyld3::MachOAnalyzer::VMAddrConverter const&, void (unsigned int) block_pointer, void const*) const + 516 11 dyld 0x18c162cb4 dyld4::Loader::findAndRunAllInitializers(dyld4::RuntimeState&) const + 176 12 dyld 0x18c16e530 dyld4::PrebuiltLoader::runInitializers(dyld4::RuntimeState&) const + 44 13 dyld 0x18c1848b0 dyld4::APIs::runAllInitializersForMain() + 88 14 dyld 0x18c147e00 dyld4::prepare(dyld4::APIs&, mach_o::Header const*) + 3092 15 dyld 0x18c1471d8 dyld4::start(dyld4::KernelArgs*, void*, void*)::$_0::operator()() const + 236 16 dyld 0x18c146b4c start + 6000 I suspect this might be due to the provisioning profile, which doesn’t seem to include the required entitlement. However, I haven’t found a way to explicitly add this entitlement to the provisioning profile. My questions are: How can I add com.apple.security.device.usb to the provisioning profile? Is there a way to confirm that adding this entitlement would resolve the issue? Are there recommended steps to debug and test Virtualization framework usage in a sandboxed environment (especially when launched as a service)? I also tried disabling SIP and AMFI, but the crash still occurs. Is there a better way to work around or test this in development? Any insights or suggestions would be greatly appreciated!
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505
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Jun ’25