4e97a6511b
* Instead of always re-load page-tables when a thread context is switched only do this when another user PD's thread is the next target, core-threads are always executed within the last PD's page-table set * remove the concept of the mode transition * instead map the exception vector once in bootstrap code into kernel's memory segment * when a new page directory is constructed for a user PD, copy over the top-level kernel segment entries on RISCV and X86, on ARM we use a designated page directory register for the kernel segment * transfer the current CPU id from bootstrap to core/kernel in a register to ease first stack address calculation * align cpu context member of threads and vms, because of x86 constraints regarding the stack-pointer loading * introduce Align_at template for members with alignment constraints * let the x86 hardware do part of the context saving in ISS, by passing the thread context into the TSS before leaving to user-land * use one exception vector for all ARM platforms including Arm_v6 Fix #2091
44 lines
1.1 KiB
C++
44 lines
1.1 KiB
C++
/*
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* \brief Platform specific services for Arndale
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* \author Stefan Kalkowski
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* \date 2014-07-08
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*/
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/*
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* Copyright (C) 2014-2017 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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/* Genode includes */
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#include <base/service.h>
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#include <base/heap.h>
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/* core includes */
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#include <platform.h>
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#include <platform_services.h>
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#include <core_service.h>
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#include <map_local.h>
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#include <vm_root.h>
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#include <platform.h>
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extern Genode::addr_t hypervisor_exception_vector;
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/*
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* Add ARM virtualization specific vm service
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*/
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void Genode::platform_add_local_services(Rpc_entrypoint *ep,
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Sliced_heap *sh,
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Registry<Service> *services)
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{
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using namespace Genode;
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map_local(Platform::core_phys_addr((addr_t)&hypervisor_exception_vector),
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Hw::Mm::hypervisor_exception_vector().base, 1,
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Hw::PAGE_FLAGS_KERN_TEXT);
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static Vm_root vm_root(ep, sh);
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static Core_service<Vm_session_component> vm_service(*services, vm_root);
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}
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