58 lines
1.3 KiB
C++
58 lines
1.3 KiB
C++
/*
|
|
* \brief VM session component for 'base-hw'
|
|
* \author Stefan Kalkowski
|
|
* \date 2012-10-08
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2012-2013 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU General Public License version 2.
|
|
*/
|
|
|
|
#include <vm_session_component.h>
|
|
#include <platform.h>
|
|
#include <core_env.h>
|
|
|
|
using namespace Genode;
|
|
|
|
|
|
addr_t Vm_session_component::_alloc_ds(size_t &ram_quota)
|
|
{
|
|
addr_t addr;
|
|
if (_ds_size() > ram_quota ||
|
|
platform()->ram_alloc()->alloc_aligned(_ds_size(), (void**)&addr,
|
|
get_page_size_log2()).is_error())
|
|
throw Root::Quota_exceeded();
|
|
ram_quota -= _ds_size();
|
|
return addr;
|
|
}
|
|
|
|
|
|
void Vm_session_component::run(void)
|
|
{
|
|
if (!_vm_id || Kernel::run_vm(_vm_id))
|
|
PWRN("Unknown VM: is the exception handler registered?");
|
|
}
|
|
|
|
|
|
void Vm_session_component::pause(void)
|
|
{
|
|
if (!_vm_id || Kernel::pause_vm(_vm_id))
|
|
PWRN("Unknown VM: is the exception handler registered?");
|
|
}
|
|
|
|
|
|
Vm_session_component::~Vm_session_component()
|
|
{
|
|
/* dissolve VM dataspace from service entry point */
|
|
_ds_ep->dissolve(&_ds);
|
|
|
|
if (Kernel::delete_vm(_vm_id)) PERR("Cannot destruct unknown VM");
|
|
|
|
/* free region in allocator */
|
|
core_env()->rm_session()->detach(_ds.core_local_addr());
|
|
platform()->ram_alloc()->free((void*)_ds.phys_addr());
|
|
}
|