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106 lines
2.8 KiB
C++
106 lines
2.8 KiB
C++
/*
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* \brief VM-session interface
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* \author Stefan Kalkowski
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* \author Alexander Böttcher
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* \author Christian Helmuth
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* \date 2012-10-02
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*/
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/*
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* Copyright (C) 2012-2021 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#ifndef _INCLUDE__VM_SESSION__VM_SESSION_H_
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#define _INCLUDE__VM_SESSION__VM_SESSION_H_
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/* Genode includes */
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#include <base/rpc_args.h>
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#include <base/signal.h>
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#include <base/ram_allocator.h>
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#include <cpu_session/cpu_session.h>
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#include <session/session.h>
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namespace Genode { struct Vm_session; }
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struct Genode::Vm_session : Session
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{
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static const char *service_name() { return "VM"; }
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struct Attach_attr
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{
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addr_t offset;
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addr_t size;
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bool executable;
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bool writeable;
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};
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enum { CAP_QUOTA = 3 };
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class Invalid_dataspace : Exception { };
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class Region_conflict : Exception { };
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/**
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* Attach dataspace to the guest-physical memory address space
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*
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* \param ds dataspace to be attached
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* \param vm_addr address in guest-physical memory address space
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*/
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virtual void attach(Dataspace_capability ds, addr_t, Attach_attr) = 0;
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/**
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* Invalidate region of the guest-physical memory address space
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*
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* \param vm_addr address in guest-physical memory address space
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* \param size size of the region to invalidate
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*/
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virtual void detach(addr_t vm_addr, size_t size) = 0;
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/**
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* Attach cpu-local interrupt-controller's interface to
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* guest-physical memory address space.
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*
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* \param vm_addr address in guest-physical memory address space
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*
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* Note: this is currently only support for ARM interrupt-controller
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* hardware virtualization
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*/
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virtual void attach_pic(addr_t vm_addr) = 0;
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/*****************************************
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** Access to kernel-specific interface **
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*****************************************/
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/**
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* Common base class of kernel-specific CPU interfaces
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*/
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struct Native_vcpu;
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/*********************
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** RPC declaration **
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*********************/
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GENODE_RPC_THROW(Rpc_attach, void, attach,
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GENODE_TYPE_LIST(Out_of_ram, Out_of_caps, Region_conflict,
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Invalid_dataspace),
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Dataspace_capability, addr_t, Attach_attr);
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GENODE_RPC(Rpc_detach, void, detach, addr_t, size_t);
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GENODE_RPC(Rpc_attach_pic, void, attach_pic, addr_t);
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/**
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* Create a new virtual CPU in the VM
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*
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* The vCPU inherits the affinity location (i.e., CPU) from the handler
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* thread passed as parameter.
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*/
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GENODE_RPC_THROW(Rpc_create_vcpu, Capability<Native_vcpu>, create_vcpu,
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GENODE_TYPE_LIST(Out_of_ram, Out_of_caps),
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Thread_capability);
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GENODE_RPC_INTERFACE(Rpc_attach, Rpc_detach, Rpc_attach_pic, Rpc_create_vcpu);
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};
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#endif /* _INCLUDE__VM_SESSION__VM_SESSION_H_ */
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