76 lines
1.7 KiB
C++
76 lines
1.7 KiB
C++
/*
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* \brief VMM example for ARMv8 virtualization
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* \author Stefan Kalkowski
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* \date 2019-07-18
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*/
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/*
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* Copyright (C) 2019 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#include <vm.h>
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using Vmm::Vm;
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void Vm::_load_kernel()
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{
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Genode::memcpy((void*)(_ram.local() + KERNEL_OFFSET),
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_kernel_rom.local_addr<void>(),
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_kernel_rom.size());
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}
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void Vm::_load_dtb()
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{
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Genode::memcpy((void*)(_ram.local() + DTB_OFFSET),
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_dtb_rom.local_addr<void>(),
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_dtb_rom.size());
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}
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void Vm::_load_initrd()
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{
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Genode::memcpy((void*)(_ram.local() + INITRD_OFFSET),
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_initrd_rom.local_addr<void>(),
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_initrd_rom.size());
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}
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Vmm::Cpu & Vm::boot_cpu()
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{
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if (!_cpus[0].constructed())
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_cpus[0].construct(*this, _vm, _bus, _gic, _env, _heap, _env.ep());
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return *_cpus[0];
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}
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Vm::Vm(Genode::Env & env)
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: _env(env),
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_gic("Gicv3", 0x8000000, 0x10000, _bus, env),
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_uart("Pl011", 0x9000000, 0x1000, 33, boot_cpu(), _bus, env)
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{
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_vm.attach(_vm_ram.cap(), RAM_ADDRESS);
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/* FIXME extend for gicv2 by: _vm.attach_pic(0x8010000); */
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_load_kernel();
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_load_dtb();
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_load_initrd();
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for (unsigned i = 1; i < MAX_CPUS; i++) {
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Genode::Affinity::Space space = _env.cpu().affinity_space();
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Genode::Affinity::Location location(space.location_of_index(i));
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_eps[i].construct(_env, STACK_SIZE, "vcpu ep", location);
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_cpus[i].construct(*this, _vm, _bus, _gic, _env, _heap, *_eps[i]);
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}
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Genode::log("Start virtual machine ...");
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Cpu & cpu = boot_cpu();
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cpu.state().ip = _ram.base() + KERNEL_OFFSET;
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cpu.state().r[0] = _ram.base() + DTB_OFFSET;
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cpu.run();
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};
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