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vbox: Extract Vmm_memory::Region to separate header
This enables platform-specific implementations of the struct Mem_region type. Issue #2016
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cd6b3b1222
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@ -123,7 +123,7 @@ void genode_update_tsc(void (*update_func)(void), unsigned long update_us)
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}
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bool Vmm_memory::revoke_from_vm(Region *r)
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bool Vmm_memory::revoke_from_vm(Mem_region *r)
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{
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PWRN("%s unimplemented", __func__);
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return false;
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75
repos/ports/src/virtualbox/mem_region.h
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75
repos/ports/src/virtualbox/mem_region.h
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@ -0,0 +1,75 @@
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/*
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* \brief Memory region types
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* \author Norman Feske
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* \author Adrian-Ken Rueegsegger
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* \author Reto Buerki
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* \date 2013-09-02
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*/
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/*
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* Copyright (C) 2013 Genode Labs GmbH
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*
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* This file is distributed under the terms of the GNU General Public License
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* version 2.
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*/
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#ifndef _MEM_REGION_H_
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#define _MEM_REGION_H_
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/* Genode includes */
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#include <util/list.h>
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#include <rm_session/connection.h>
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#include <region_map/client.h>
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/* VirtualBox includes */
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#include <VBox/vmm/pgm.h>
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struct Mem_region;
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struct Mem_region : public Genode::List<Mem_region>::Element,
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private Genode::Rm_connection,
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public Genode::Region_map_client
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{
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typedef Genode::Ram_session Ram_session;
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typedef Genode::Region_map Region_map;
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PPDMDEVINS pDevIns;
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unsigned const iRegion;
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RTGCPHYS vm_phys;
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PFNPGMR3PHYSHANDLER pfnHandlerR3;
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void *pvUserR3;
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PGMPHYSHANDLERTYPE enmType;
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Genode::addr_t _base;
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Genode::size_t _size;
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Mem_region(Ram_session &ram, size_t size, PPDMDEVINS pDevIns,
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unsigned iRegion, unsigned sub_rm_max_ds = 32 * 1024 * 1024)
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:
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Region_map_client(Rm_connection::create(size)),
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pDevIns(pDevIns),
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iRegion(iRegion),
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vm_phys(0), pfnHandlerR3(0), pvUserR3(0),
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_base(Genode::env()->rm_session()->attach(Region_map_client::dataspace())),
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_size(size)
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{
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Genode::addr_t rest_size = _size;
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Genode::addr_t map_size = rest_size < sub_rm_max_ds ? rest_size : sub_rm_max_ds;
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do {
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Genode::Ram_dataspace_capability ds = Genode::env()->ram_session()->alloc(map_size);
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attach_at(ds, _size - rest_size, map_size);
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rest_size -= map_size;
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map_size = rest_size < sub_rm_max_ds ? rest_size : sub_rm_max_ds;
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} while (rest_size);
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}
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size_t size() { return _size; }
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template <typename T>
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T * local_addr() { return reinterpret_cast<T *>(_base); }
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};
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#endif /* _MEM_REGION_H_ */
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@ -216,7 +216,7 @@ void genode_update_tsc(void (*update_func)(void), unsigned long update_us)
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}
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bool Vmm_memory::revoke_from_vm(Region *r)
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bool Vmm_memory::revoke_from_vm(Mem_region *r)
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{
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Assert(r);
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@ -26,8 +26,9 @@
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#include <base/env.h>
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#include <base/lock.h>
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#include <util/list.h>
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#include <rm_session/connection.h>
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#include <region_map/client.h>
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/* Genode/Virtualbox includes */
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#include "mem_region.h"
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#define PAGE_SIZE BACKUP_PAGESIZE
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@ -37,77 +38,33 @@
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class Vmm_memory
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{
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struct Region;
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typedef Genode::Ram_session Ram_session;
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typedef Genode::Region_map Region_map;
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typedef Genode::size_t size_t;
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typedef Genode::Lock Lock;
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typedef Genode::List<Region> Region_list;
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typedef Genode::List<Mem_region> Mem_region_list;
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private:
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struct Region : public Region_list::Element,
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private Genode::Rm_connection,
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public Genode::Region_map_client
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{
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PPDMDEVINS pDevIns;
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unsigned const iRegion;
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RTGCPHYS vm_phys;
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PFNPGMR3PHYSHANDLER pfnHandlerR3;
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void *pvUserR3;
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PGMPHYSHANDLERTYPE enmType;
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Genode::addr_t _base;
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Genode::size_t _size;
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Region(Ram_session &ram, size_t size, PPDMDEVINS pDevIns,
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unsigned iRegion, unsigned sub_rm_max_ds = 32 * 1024 * 1024)
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:
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Region_map_client(Rm_connection::create(size)),
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pDevIns(pDevIns),
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iRegion(iRegion),
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vm_phys(0), pfnHandlerR3(0), pvUserR3(0),
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_base(Genode::env()->rm_session()->attach(Region_map_client::dataspace())),
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_size(size)
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{
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Genode::addr_t rest_size = _size;
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Genode::addr_t map_size = rest_size < sub_rm_max_ds ? rest_size : sub_rm_max_ds;
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do {
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Genode::Ram_dataspace_capability ds = Genode::env()->ram_session()->alloc(map_size);
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attach_at(ds, _size - rest_size, map_size);
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rest_size -= map_size;
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map_size = rest_size < sub_rm_max_ds ? rest_size : sub_rm_max_ds;
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} while (rest_size);
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}
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size_t size() { return _size; }
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template <typename T>
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T * local_addr() { return reinterpret_cast<T *>(_base); }
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};
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Lock _lock;
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Region_list _regions;
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Mem_region_list _regions;
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/**
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* Backing store
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*/
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Genode::Ram_session &_ram;
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Region *_lookup_unsynchronized(PPDMDEVINS pDevIns, unsigned iRegion)
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Mem_region *_lookup_unsynchronized(PPDMDEVINS pDevIns, unsigned iRegion)
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{
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for (Region *r = _regions.first(); r; r = r->next())
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for (Mem_region *r = _regions.first(); r; r = r->next())
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if (r->pDevIns == pDevIns && r->iRegion == iRegion)
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return r;
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return 0;
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}
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Region *_lookup_unsynchronized(RTGCPHYS vm_phys, size_t size)
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Mem_region *_lookup_unsynchronized(RTGCPHYS vm_phys, size_t size)
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{
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for (Region *r = _regions.first(); r; r = r->next())
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for (Mem_region *r = _regions.first(); r; r = r->next())
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if (r->vm_phys && r->vm_phys <= vm_phys
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&& vm_phys - r->vm_phys < r->size()
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&& r->size() - (vm_phys - r->vm_phys) >= size)
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@ -129,8 +86,8 @@ class Vmm_memory
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Lock::Guard guard(_lock);
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try {
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Region *r = new (Genode::env()->heap())
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Region(_ram, cb, pDevIns, iRegion);
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Mem_region *r = new (Genode::env()->heap())
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Mem_region(_ram, cb, pDevIns, iRegion);
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_regions.insert(r);
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return r->local_addr<void>();
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@ -162,7 +119,7 @@ class Vmm_memory
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{
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Lock::Guard guard(_lock);
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Region *r = _lookup_unsynchronized(vm_phys, size);
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Mem_region *r = _lookup_unsynchronized(vm_phys, size);
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if (!r) return false;
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@ -180,7 +137,7 @@ class Vmm_memory
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{
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Lock::Guard guard(_lock);
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Region *r = _lookup_unsynchronized(vm_phys, size);
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Mem_region *r = _lookup_unsynchronized(vm_phys, size);
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if (!r) return 0;
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@ -196,7 +153,7 @@ class Vmm_memory
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{
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Lock::Guard guard(_lock);
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Region *r = _lookup_unsynchronized(vm_phys, size);
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Mem_region *r = _lookup_unsynchronized(vm_phys, size);
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if (!r)
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return false;
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@ -212,7 +169,7 @@ class Vmm_memory
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{
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Lock::Guard guard(_lock);
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Region *r = _lookup_unsynchronized(pDevIns, iRegion);
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Mem_region *r = _lookup_unsynchronized(pDevIns, iRegion);
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if (r) r->vm_phys = GCPhys;
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@ -223,7 +180,7 @@ class Vmm_memory
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{
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Lock::Guard guard(_lock);
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Region *r = _lookup_unsynchronized(GCPhys, size);
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Mem_region *r = _lookup_unsynchronized(GCPhys, size);
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if (!r) return false;
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bool result = revoke_from_vm(r);
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@ -237,7 +194,7 @@ class Vmm_memory
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/**
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* Platform specific implemented.
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*/
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bool revoke_from_vm(Region *r);
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bool revoke_from_vm(Mem_region *r);
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/**
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* Revoke all memory (RAM or ROM) from VM
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@ -246,7 +203,7 @@ class Vmm_memory
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{
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Lock::Guard guard(_lock);
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for (Region *r = _regions.first(); r; r = r->next())
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for (Mem_region *r = _regions.first(); r; r = r->next())
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{
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bool ok = revoke_from_vm(r);
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Assert(ok);
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