80 lines
2.0 KiB
C
80 lines
2.0 KiB
C
/*
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* \brief Common VirtualBox SUPLib supplements
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* \author Norman Feske
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* \date 2013-08-20
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*/
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/*
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* Copyright (C) 2013 Genode Labs GmbH
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*
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* This file is distributed under the terms of the GNU General Public License
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* version 2.
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*/
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#ifndef _SUP_H_
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#define _SUP_H_
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/* Genode includes */
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#include <cpu_session/cpu_session.h>
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#include "util/misc_math.h"
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#include "util/string.h"
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/* VirtualBox includes */
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#include <VBox/vmm/vm.h>
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#include <VBox/vmm/gvmm.h>
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#include <iprt/param.h>
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/* libc memory allocator */
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#include <libc_mem_alloc.h>
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uint64_t genode_cpu_hz();
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void inline genode_VMMR0_DO_GVMM_CREATE_VM(PSUPVMMR0REQHDR pReqHdr)
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{
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GVMMCREATEVMREQ &req = reinterpret_cast<GVMMCREATEVMREQ &>(*pReqHdr);
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size_t const cCpus = req.cCpus;
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/*
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* Allocate and initialize VM struct
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*
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* The VM struct is followed by the variable-sizedA array of VMCPU
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* objects. 'RT_UOFFSETOF' is used to determine the size including
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* the VMCPU array.
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*
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* VM struct must be page-aligned, which is checked at least in
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* PDMR3CritSectGetNop().
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*/
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size_t const cbVM = RT_UOFFSETOF(VM, aCpus[cCpus]);
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VM *pVM = (VM *)Libc::mem_alloc()->alloc(cbVM, Genode::log2(PAGE_SIZE));
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Genode::memset(pVM, 0, cbVM);
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/*
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* On Genode, VMMR0 and VMMR3 share a single address space. Hence, the
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* same pVM pointer is valid as pVMR0 and pVMR3.
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*/
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pVM->enmVMState = VMSTATE_CREATING;
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pVM->pVMR0 = (RTHCUINTPTR)pVM;
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pVM->pVMRC = (RTGCUINTPTR)pVM;
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pVM->pSession = req.pSession;
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pVM->cbSelf = cbVM;
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pVM->cCpus = cCpus;
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pVM->uCpuExecutionCap = 100; /* expected by 'vmR3CreateU()' */
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pVM->offVMCPU = RT_UOFFSETOF(VM, aCpus);
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for (uint32_t i = 0; i < cCpus; i++) {
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pVM->aCpus[i].pVMR0 = pVM->pVMR0;
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pVM->aCpus[i].pVMR3 = pVM;
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pVM->aCpus[i].idHostCpu = NIL_RTCPUID;
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pVM->aCpus[i].hNativeThreadR0 = NIL_RTNATIVETHREAD;
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}
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/* out parameters of the request */
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req.pVMR0 = pVM->pVMR0;
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req.pVMR3 = pVM;
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}
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Genode::Cpu_session * get_vcpu_cpu_session();
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#endif /* _SUP_H_ */
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