56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
/*
|
|
* \brief RM-session implementation
|
|
* \author Norman Feske
|
|
* \author Sebastian Sumpf
|
|
* \date 2009-10-02
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2009-2012 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.
|
|
*/
|
|
|
|
/* Genode includes */
|
|
#include <base/printf.h>
|
|
#include <base/ipc_pager.h>
|
|
|
|
/* core includes */
|
|
#include <rm_session_component.h>
|
|
#include <nova_util.h>
|
|
|
|
using namespace Genode;
|
|
|
|
static const bool verbose = false;
|
|
|
|
void Rm_client::unmap(addr_t core_local_base, addr_t virt_base, size_t size)
|
|
{
|
|
addr_t const core_local_end = core_local_base + (size - 1);
|
|
off_t const core_to_virt = virt_base - core_local_base;
|
|
|
|
Nova::Rights rwx(true, true, true);
|
|
|
|
while (true) {
|
|
Nova::Mem_crd crd(core_local_base >> 12, 32, rwx);
|
|
Nova::lookup(crd);
|
|
|
|
if (crd.is_null()) {
|
|
PERR("Invalid unmap at local: %08lx virt: %08lx",
|
|
core_local_base, core_local_base + core_to_virt);
|
|
return;
|
|
}
|
|
|
|
if (verbose)
|
|
PINF("Lookup core_addr: %08lx base: %lx order: %lx is null %d", core_local_base, crd.base(), crd.order(), crd.is_null());
|
|
|
|
unmap_local(crd, false);
|
|
|
|
core_local_base = (crd.base() << 12) /* base address of mapping */
|
|
+ (0x1000 << crd.order()); /* size of mapping */
|
|
|
|
if (core_local_base > core_local_end)
|
|
return;
|
|
}
|
|
}
|