ExternalVendorCode/genode
1
0
Fork 0
mirror of https://github.com/genodelabs/genode.git synced 2024-12-19 13:47:56 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

hw: map a dataspace in core according to its flags

Browse Source 
Thereby removing obsolete quirk for uncached CPU state dataspace
in VM session.

Fixes #1198
This commit is contained in:
Stefan Kalkowski 2014-07-08 15:46:53 +02:00 committed by Norman Feske
parent c5380674df
commit 609f7abb0a
14 changed files with 55 additions and 82 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
repos/base-hw/include/platform/imx53/drivers/trustzone.h
View File

@ -28,8 +28,6 @@ namespace Trustzone
*/
SECURE_RAM_BASE = Genode::Board_base::RAM0_BASE,
SECURE_RAM_SIZE = 256 * 1024 * 1024,
VM_STATE_BASE = SECURE_RAM_BASE + SECURE_RAM_SIZE,
VM_STATE_SIZE = 1 << 20,
NONSECURE_RAM_BASE = Genode::Board_base::RAM1_BASE,
NONSECURE_RAM_SIZE = Genode::Board_base::RAM1_SIZE,
};

4
repos/base-hw/include/platform/vea9x4/drivers/trustzone.h
View File

@ -20,10 +20,8 @@
namespace Trustzone
{
enum {
VM_STATE_SIZE = 1 << 20,
SECURE_RAM_BASE = Genode::Board_base::RAM_3_BASE,
SECURE_RAM_SIZE = Genode::Board_base::RAM_3_SIZE - VM_STATE_SIZE,
VM_STATE_BASE = SECURE_RAM_BASE + SECURE_RAM_SIZE,
SECURE_RAM_SIZE = Genode::Board_base::RAM_3_SIZE,
NONSECURE_RAM_BASE = 0x80000000,
NONSECURE_RAM_SIZE = 0x20000000,
};

9
repos/base-hw/src/core/core_rm_session.cc
View File

@ -50,8 +50,8 @@ Core_rm_session::attach(Dataspace_capability ds_cap, size_t size,
/* allocate range in core's virtual address space */
void *virt_addr;
if (!platform()->region_alloc()->alloc_aligned(page_rounded_size,
&virt_addr,
get_page_size_log2()).is_ok()) {
&virt_addr,
get_page_size_log2()).is_ok()) {
PERR("Could not allocate virtual address range in core of size %zd\n",
page_rounded_size);
return false;
@ -59,7 +59,10 @@ Core_rm_session::attach(Dataspace_capability ds_cap, size_t size,
/* map the dataspace's physical pages to corresponding virtual addresses */
unsigned num_pages = page_rounded_size >> get_page_size_log2();
if (!map_local(ds->phys_addr(), (addr_t)virt_addr, num_pages))
Page_flags const flags = Page_flags::apply_mapping(ds.object()->writable(),
ds.object()->cacheability(),
ds.object()->is_io_mem());
if (!map_local(ds->phys_addr(), (addr_t)virt_addr, num_pages, flags))
return 0;
return virt_addr;

10
repos/base-hw/src/core/imx53/trustzone/platform_services.cc
View File

@ -30,15 +30,7 @@ void Genode::platform_add_local_services(Genode::Rpc_entrypoint *ep,
{
using namespace Genode;
/*
* We use an extra portion of RAM for the VM state,
* so we can map it non-cached to core instead of normal, cached RAM.
* In future, when core only maps memory on demand, this extra allocator,
* can be eliminated.
*/
static Synchronized_range_allocator<Allocator_avl> vm_alloc(0);
vm_alloc.add_range(Trustzone::VM_STATE_BASE, Trustzone::VM_STATE_SIZE);
static Vm_root vm_root(ep, sh, &vm_alloc);
static Vm_root vm_root(ep, sh);
static Local_service vm_ls(Vm_session::service_name(), &vm_root);
ls->insert(&vm_ls);
}

3
repos/base-hw/src/core/imx53/trustzone/platform_support.cc
View File

@ -57,9 +57,6 @@ Native_region * Platform::_core_only_mmio_regions(unsigned const i)
/* interrupt controller */
{ Board::TZIC_MMIO_BASE, Board::TZIC_MMIO_SIZE },
/* vm state memory */
{ Trustzone::VM_STATE_BASE, Trustzone::VM_STATE_SIZE },
/* central security unit */
{ Board::CSU_BASE, Board::CSU_SIZE },
};

6
repos/base-hw/src/core/include/map_local.h
View File

@ -17,6 +17,9 @@
/* Genode includes */
#include <base/printf.h>
/* core includes */
#include <page_flags.h>
namespace Genode {
/**
@ -30,7 +33,8 @@ namespace Genode {
* \return true on success
*/
bool map_local(addr_t from_phys, addr_t to_virt, size_t num_pages,
bool io_mem = false);
Page_flags flags = { true, true, false, false,
false, CACHED });
/**
* Unmap pages from core's address space

7
repos/base-hw/src/core/include/page_flags.h
View File

@ -40,13 +40,6 @@ namespace Genode
return Page_flags { writeable, true, false, false,
io_mem, cacheable }; }
/**
* Create flag POD for kernel when it creates the core space
*/
static const Page_flags map_core_area(bool const io_mem) {
return Page_flags { true, true, false, false, io_mem,
io_mem ? UNCACHED : CACHED}; }
/**
* Create flag POD for the mode transition region
*/

13
repos/base-hw/src/core/include/vm_root.h
View File

@ -24,17 +24,12 @@ namespace Genode {
class Vm_root : public Root_component<Vm_session_component>
{
private:
Range_allocator *_ram_alloc;
protected:
Vm_session_component *_create_session(const char *args)
{
size_t ram_quota = Arg_string::find_arg(args, "ram_quota").long_value(0);
return new (md_alloc())
Vm_session_component(ep(), _ram_alloc, ram_quota);
return new (md_alloc()) Vm_session_component(ep(), ram_quota);
}
public:
@ -46,10 +41,8 @@ namespace Genode {
* \param md_alloc meta-data allocator to be used by root component
*/
Vm_root(Rpc_entrypoint *session_ep,
Allocator *md_alloc,
Range_allocator *ram_alloc)
: Root_component<Vm_session_component>(session_ep, md_alloc),
_ram_alloc(ram_alloc){ }
Allocator *md_alloc)
: Root_component<Vm_session_component>(session_ep, md_alloc) { }
};
}

30
repos/base-hw/src/core/include/vm_session_component.h
View File

@ -29,34 +29,24 @@ namespace Genode {
{
private:
Rpc_entrypoint *_ds_ep;
Range_allocator *_ram_alloc;
unsigned _vm_id;
void *_vm;
addr_t _ds_addr;
Dataspace_component _ds;
Dataspace_capability _ds_cap;
Rpc_entrypoint *_ds_ep;
Range_allocator *_ram_alloc;
unsigned _vm_id;
void *_vm;
Dataspace_component _ds;
Dataspace_capability _ds_cap;
addr_t _ds_addr;
static size_t _ds_size() {
return align_addr(sizeof(Cpu_state_modes),
get_page_size_log2()); }
addr_t _alloc_ds(size_t *ram_quota)
{
addr_t addr;
if (_ds_size() > *ram_quota ||
_ram_alloc->alloc_aligned(_ds_size(), (void**)&addr,
get_page_size_log2()).is_error())
throw Root::Quota_exceeded();
*ram_quota -= _ds_size();
return addr;
}
addr_t _alloc_ds(size_t &ram_quota);
public:
Vm_session_component(Rpc_entrypoint *ds_ep,
Range_allocator *ram_alloc,
size_t ram_quota);
Vm_session_component(Rpc_entrypoint *ds_ep,
size_t ram_quota);
~Vm_session_component();

4
repos/base-hw/src/core/kernel/kernel.cc
View File

@ -125,7 +125,9 @@ namespace Kernel
using namespace Genode;
Translation_table *tt = Platform_pd::translation_table();
const Page_flags flags = Page_flags::map_core_area(io_mem);
const Page_flags flags =
Page_flags::apply_mapping(true, io_mem ? UNCACHED : CACHED,
io_mem);
start = trunc_page(start);
size_t size = round_page(end) - start;

6
repos/base-hw/src/core/platform.cc
View File

@ -192,10 +192,10 @@ void Core_parent::exit(int exit_value)
** Support for core memory management **
****************************************/
bool Genode::map_local(addr_t from_phys, addr_t to_virt, size_t num_pages, bool io_mem)
bool Genode::map_local(addr_t from_phys, addr_t to_virt, size_t num_pages,
Page_flags flags)
{
Translation_table *tt = Kernel::core_pd()->translation_table();
const Page_flags flags = Page_flags::map_core_area(io_mem);
try {
for (unsigned i = 0; i < 2; i++) {
@ -245,7 +245,7 @@ bool Core_mem_allocator::Mapped_mem_allocator::_map_local(addr_t virt_addr,
{
Genode::Page_slab * slab = Kernel::core_pd()->platform_pd()->page_slab();
slab->backing_store(_core_mem_allocator->raw());
bool ret = ::map_local(phys_addr, virt_addr, size / get_page_size(), false);
bool ret = ::map_local(phys_addr, virt_addr, size / get_page_size());
slab->backing_store(_core_mem_allocator);
return ret;
}

10
repos/base-hw/src/core/vea9x4/trustzone/platform_services.cc
View File

@ -30,15 +30,7 @@ void Genode::platform_add_local_services(Genode::Rpc_entrypoint *ep,
{
using namespace Genode;
/*
* We use an extra portion of RAM for the VM state,
* so we can map it non-cached to core instead of normal, cached RAM.
* In future, when core only maps memory on demand, this extra allocator,
* can be eliminated.
*/
static Synchronized_range_allocator<Allocator_avl> vm_alloc(0);
vm_alloc.add_range(Trustzone::VM_STATE_BASE, Trustzone::VM_STATE_SIZE);
static Vm_root vm_root(ep, sh, &vm_alloc);
static Vm_root vm_root(ep, sh);
static Local_service vm_ls(Vm_session::service_name(), &vm_root);
ls->insert(&vm_ls);
}

3
repos/base-hw/src/core/vea9x4/trustzone/platform_support.cc
View File

@ -53,9 +53,6 @@ Native_region * Platform::_core_only_mmio_regions(unsigned const i)
/* Core UART */
{ Board::PL011_0_MMIO_BASE, Board::PL011_0_MMIO_SIZE },
/* vm state memory */
{ Trustzone::VM_STATE_BASE, Trustzone::VM_STATE_SIZE },
};
return i < sizeof(_regions)/sizeof(_regions[0]) ? &_regions[i] : 0;
}

30
repos/base-hw/src/core/vm_session_component.cc
View File

@ -20,17 +20,30 @@
/* core includes */
#include <kernel/core_interface.h>
#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::exception_handler(Signal_context_capability handler)
{
if (_vm_id) {
PWRN("Cannot register exception_handler repeatedly");
return;
}
_vm_id = Kernel::new_vm(_vm, (void*)_ds.core_local_addr(), handler.dst());
}
@ -56,16 +69,16 @@ void Vm_session_component::pause(void)
Vm_session_component::Vm_session_component(Rpc_entrypoint *ds_ep,
Range_allocator *ram_alloc,
size_t ram_quota)
: _ds_ep(ds_ep), _ram_alloc(ram_alloc), _vm_id(0),
_ds_addr(_alloc_ds(&ram_quota)),
_ds(_ds_size(), _ds_addr, _ds_addr, UNCACHED, true, 0),
: _ds_ep(ds_ep), _vm_id(0),
_ds(_ds_size(), _alloc_ds(ram_quota), UNCACHED, true, 0),
_ds_cap(static_cap_cast<Dataspace>(_ds_ep->manage(&_ds)))
{
_ds.assign_core_local_addr(core_env()->rm_session()->attach(_ds_cap));
/* alloc needed memory */
if (Kernel::vm_size() > ram_quota ||
!_ram_alloc->alloc(Kernel::vm_size(), &_vm))
!platform()->core_mem_alloc()->alloc(Kernel::vm_size(), &_vm))
throw Root::Quota_exceeded();
}
@ -76,6 +89,7 @@ Vm_session_component::~Vm_session_component()
_ds_ep->dissolve(&_ds);
/* free region in allocator */
_ram_alloc->free((void*)_ds.core_local_addr());
_ram_alloc->free(_vm);
core_env()->rm_session()->detach(_ds.core_local_addr());
platform()->ram_alloc()->free((void*)_ds.phys_addr());
platform()->core_mem_alloc()->free(_vm);
}