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acpi: transfer memory quota of pci client/driver

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Fixes #1550
This commit is contained in:
Alexander Boettcher 2015-06-01 10:52:49 +02:00 committed by Christian Helmuth
parent 7b6cd28dcb
commit 8cf09281c1
1 changed files with 28 additions and 9 deletions
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37
repos/os/src/drivers/acpi/main.cc
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@ -128,10 +128,13 @@ namespace Pci {
private:
Provider &_pci_provider;
Genode::Ram_session_capability _slave_ram_cap;
public:
Root(Provider &pci_provider) : _pci_provider(pci_provider) { }
Root(Provider &pci_provider,
Genode::Ram_session_capability ram_cap)
: _pci_provider(pci_provider), _slave_ram_cap(ram_cap) { }
Genode::Session_capability session(Session_args const &args,
Genode::Affinity const &affinity)
@ -152,10 +155,25 @@ namespace Pci {
void close(Genode::Session_capability session) {
Genode::Root_client(_pci_provider.root()).close(session); }
void upgrade(Genode::Session_capability s, Upgrade_args const & u)
void upgrade(Genode::Session_capability s,
Upgrade_args const & args)
{
try { Genode::Root_client(_pci_provider.root()).upgrade(s, u); }
catch (...) { throw Invalid_args(); }
if (!s.valid() || !args.is_valid_string() ||
!_slave_ram_cap.valid())
throw Invalid_args();
using namespace Genode;
size_t ram_quota = Arg_string::find_arg(args.string(), "ram_quota").ulong_value(0);
Ram_session_client acpi_ram(env()->ram_session_cap());
if (acpi_ram.transfer_quota(_slave_ram_cap, ram_quota))
throw Invalid_args();
try { Root_client(_pci_provider.root()).upgrade(s, args); }
catch (...) {
PDBG("notification about upgrade failed");
throw Invalid_args();
}
}
};
}
@ -198,7 +216,7 @@ class Pci_policy : public Genode::Slave_policy, public Pci::Provider
/**
* Parse ACPI tables and announce slave PCI service
*/
void _acpi_session()
void _acpi_session(Genode::Ram_session_capability ram_cap)
{
Pci::Session_capability session;
const char *args = "label=\"acpi_drv\", ram_quota=16K";
@ -212,7 +230,7 @@ class Pci_policy : public Genode::Slave_policy, public Pci::Provider
Acpi::configure_pci_devices(session);
/* announce PCI/IRQ services to parent */
static Pci::Root pci_root(*this);
static Pci::Root pci_root(*this, ram_cap);
Genode::env()->parent()->announce(_pci_ep.manage(&pci_root));
Genode::env()->parent()->announce(_irq_ep.manage(&irq_root));
@ -247,12 +265,13 @@ class Pci_policy : public Genode::Slave_policy, public Pci::Provider
return true;
}
void wait_for_pci_drv() {
void wait_for_pci_drv(Genode::Ram_session_capability slave_ram_cap)
{
/* wait until pci drv is ready */
_lock.lock();
/* connect session and start ACPI parsing */
_acpi_session();
_acpi_session(slave_ram_cap);
}
Genode::Root_capability root() { return _cap; }
@ -295,7 +314,7 @@ int main(int argc, char **argv)
static Genode::Slave pci_slave(pci_ep, pci_policy, avail_size);
/* wait until pci drv is online and then make the acpi work */
pci_policy.wait_for_pci_drv();
pci_policy.wait_for_pci_drv(pci_slave.ram().cap());
Genode::sleep_forever();
return 0;