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vm_session: track dataspaces used by attach

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Track the dataspaces used by attach and add handling of flushing VM space
when dataspace gets destroyed (not triggered via the vm_session interface).

Issue #3111
This commit is contained in:
Alexander Boettcher
2019-04-02 17:41:30 +02:00
committed by Christian Helmuth
parent 169c51d50d
commit 450c8dc149
23 changed files with 556 additions and 216 deletions
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16
repos/base-nova/src/lib/base/vm_session.cc
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@ -36,6 +36,7 @@ struct Vcpu {
private:
Signal_dispatcher_base &_obj;
Allocator &_alloc;
Vm_session_client::Vcpu_id _id;
addr_t _state { 0 };
void *_ep_handler { nullptr };
@ -412,10 +413,13 @@ struct Vcpu {
public:
Vcpu(Vm_handler_base &o, unsigned id) : _obj(o), _id({id}) { }
Vcpu(Vm_handler_base &o, unsigned id, Allocator &alloc)
: _obj(o), _alloc(alloc), _id({id}) { }
virtual ~Vcpu() { }
Allocator &allocator() { return _alloc; }
addr_t badge(uint16_t exit) const {
return ((0UL + _id.id) << (sizeof(exit) * 8)) | exit; }
@ -684,7 +688,7 @@ Vm_session_client::create_vcpu(Allocator &alloc, Env &env,
Thread * ep = reinterpret_cast<Thread *>(&handler._rpc_ep);
call<Rpc_create_vcpu>(ep->cap());
Vcpu * vcpu = new (alloc) Registered<Vcpu> (vcpus, handler, vcpu_id++);
Vcpu * vcpu = new (alloc) Registered<Vcpu> (vcpus, handler, vcpu_id++, alloc);
vcpu->assign_ds_state(env.rm(), call<Rpc_cpu_state>(vcpu->id()));
Signal_context_capability dontcare_exit;
@ -744,3 +748,11 @@ Dataspace_capability Vm_session_client::cpu_state(Vcpu_id vcpu_id)
return cap;
}
Vm_session::~Vm_session()
{
vcpus.for_each([&] (Vcpu &vc) {
Allocator &alloc = vc.allocator();
destroy(alloc, &vc);
});
}