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core: add Region_map_detach interface

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Issue #3111
This commit is contained in:
Alexander Boettcher 2019-04-02 13:23:57 +01:00 committed by Christian Helmuth
parent 593e971121
commit 812149ed29
2 changed files with 20 additions and 10 deletions
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24
repos/base/src/core/include/region_map_component.h
View File

@ -43,12 +43,21 @@ namespace Genode {
class Cpu_thread_component;
class Dataspace_component;
class Region_map_component;
class Region_map_detach;
class Rm_client;
class Rm_region;
class Rm_faulter;
class Rm_session_component;
}
class Genode::Region_map_detach : Genode::Interface
{
public:
virtual void detach(Region_map::Local_addr) = 0;
virtual void unmap_region(addr_t base, size_t size) = 0;
};
/**
* Representation of a single entry of a region map
@ -70,13 +79,13 @@ class Genode::Rm_region : public List<Rm_region>::Element
off_t const _off;
Dataspace_component &_dsc;
Region_map_component &_rm;
Region_map_detach &_rm;
public:
Rm_region(addr_t base, size_t size, bool write,
Dataspace_component &dsc, off_t offset,
Region_map_component &rm, bool exec)
Region_map_detach &rm, bool exec)
:
_base(base), _size(size), _write(write), _exec(exec), _off(offset),
_dsc(dsc), _rm(rm)
@ -93,7 +102,7 @@ class Genode::Rm_region : public List<Rm_region>::Element
bool executable() const { return _exec; }
Dataspace_component &dataspace() const { return _dsc; }
off_t offset() const { return _off; }
Region_map_component &rm() const { return _rm; }
Region_map_detach &rm() const { return _rm; }
};
@ -210,7 +219,8 @@ class Genode::Rm_client : public Pager_object, public Rm_faulter,
class Genode::Region_map_component : private Weak_object<Region_map_component>,
public Rpc_object<Region_map>,
private List<Region_map_component>::Element
private List<Region_map_component>::Element,
public Region_map_detach
{
private:
@ -348,15 +358,15 @@ class Genode::Region_map_component : private Weak_object<Region_map_component>,
*/
addr_t _core_local_addr(Rm_region & r);
public:
/*
* Unmaps a memory area from all address spaces referencing it.
*
* \param base base address of region to unmap
* \param size size of region to unmap
*/
void _unmap_region(addr_t base, size_t size);
public:
void unmap_region(addr_t base, size_t size) override;
/**
* Constructor

6
repos/base/src/core/region_map_component.cc
View File

@ -490,7 +490,7 @@ addr_t Region_map_component::_core_local_addr(Rm_region & region)
}
void Region_map_component::_unmap_region(addr_t base, size_t size)
void Region_map_component::unmap_region(addr_t base, size_t size)
{
if (address_space()) address_space()->flush(base, size, { 0 });
@ -511,7 +511,7 @@ void Region_map_component::_unmap_region(addr_t base, size_t size)
/* if size is not zero, there is an overlap */
if (ds_size)
r->rm()._unmap_region(r->base() + ds_base - r->offset(), ds_size);
r->rm().unmap_region(r->base() + ds_base - r->offset(), ds_size);
}
}
@ -571,7 +571,7 @@ void Region_map_component::detach(Local_addr local_addr)
/*
* Unmap this memory region from all region maps referencing it.
*/
_unmap_region(region.base(), region.size());
unmap_region(region.base(), region.size());
}
}