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genode/repos/ports/src/virtualbox5/generic/sup_vmm.cc

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/*
* \brief Genode specific VirtualBox SUPLib supplements
* \author Alexander Boettcher
* \author Norman Feske
* \author Christian Helmuth
*/
/*
* Copyright (C) 2006-2013 Oracle Corporation
* Copyright (C) 2013-2019 Genode Labs GmbH
*
* This file is distributed under the terms of the GNU General Public License
* version 2.
*/
/* Genode includes */
#include <base/heap.h>
#include <base/log.h>
#include <base/semaphore.h>
#include <util/flex_iterator.h>
#include <rom_session/connection.h>
#include <base/attached_rom_dataspace.h>
#include <base/attached_ram_dataspace.h>
#include <trace/timestamp.h>
#include <util/bit_allocator.h>
#include <util/retry.h>
/* Genode's VirtualBox includes */
#include "EMInternal.h" /* enable access to em.s.* */
#include "vmm.h"
#include "vcpu.h"
#include "vcpu_svm.h"
#include "vcpu_vmx.h"
/* libc memory allocator */
#include <internal/mem_alloc.h>
/* Genode libc pthread binding */
#include <internal/thread_create.h>
/* libc */
#include <pthread.h>
#include <sched.h> /* sched_yield */
#include "mm.h"
/* VirtualBox includes */
#include <iprt/uint128.h>
#include <iprt/timer.h>
extern "C" void PGMUnmapMemoryGenode(void *, RTGCPHYS, ::size_t);
extern "C" void PGMFlushVMMemory();
enum { VERBOSE_PGM = false };
/*
* Tracking required to fulfill VMM allocation requests of VM memory
*/
enum {
CHUNKID_PAGE_START = 1,
CHUNKID_PAGE_END = 2,
CHUNKID_START = CHUNKID_PAGE_END + 1,
ONE_PAGE_SIZE = 4096,
PAGES_SUPERPAGE = GMM_CHUNK_SIZE / ONE_PAGE_SIZE,
HANDY_PAGES = PAGES_SUPERPAGE * (CHUNKID_PAGE_END - CHUNKID_PAGE_START + 1),
MAX_VM_MEMORY = 16ULL * 1024 * 1024 * 1024, /* 16 Gb */
MAX_CHUNK_IDS = MAX_VM_MEMORY / GMM_CHUNK_SIZE,
};
typedef Genode::Bit_allocator<HANDY_PAGES> Page_ids;
typedef Genode::Bit_array<PAGES_SUPERPAGE> Free_ids;
class Chunk_ids: public Genode::Bit_allocator<MAX_CHUNK_IDS>
{
public:
void reserve(Genode::addr_t bit_start, size_t const num) {
_reserve(bit_start, num); };
};
static Page_ids page_ids;
static Chunk_ids chunk_ids;
struct Region : Genode::List<Region>::Element
{
Genode::uint64_t vmm_local;
Genode::uint64_t size;
Genode::Ram_dataspace_capability cap;
Region(uint64_t gp, uint64_t gs, Genode::Ram_dataspace_capability c)
: vmm_local(gp), size(gs), cap(c) { }
bool contains(Genode::uint64_t p)
{
return (vmm_local <= p) && (p < vmm_local + size);
}
};
static Genode::List<Region> regions;
static Genode::Allocator & heap()
{
static Genode::Heap heap(genode_env().ram(), genode_env().rm());
return heap;
}
static Sub_rm_connection &vm_memory(Genode::uint64_t vm_size = 0)
{
/* memory used by the VM in any order as the VMM asks for allocations */
static Sub_rm_connection vm_memory(genode_env(), vm_size);
if (!vm_size)
return vm_memory;
using namespace Genode;
/* create iterator for aligned allocation and attachment of memory */
addr_t const vmm_local = vm_memory.local_addr(0);
Flexpage_iterator fli(vmm_local, vm_size, 0, ~0UL, 0);
/* start iteration */
Flexpage memory = fli.page();
while (memory.valid()) {
addr_t const memory_size = 1UL << memory.log2_order;
addr_t allocated = 0;
addr_t alloc_size = 128 * 1024 * 1024;
if (alloc_size > memory_size)
alloc_size = memory_size;
while (allocated < memory_size) {
Ram_dataspace_capability ds = genode_env().ram().alloc(alloc_size);
addr_t to = vm_memory.attach_executable(ds, memory.addr +
allocated - vmm_local,
alloc_size);
Assert(to == vm_memory.local_addr(memory.addr + allocated - vmm_local));
allocated += alloc_size;
regions.insert(new (heap()) Region(to, alloc_size, ds));
if (memory_size - allocated < alloc_size)
alloc_size = memory_size - allocated;
}
/* request next aligned memory range to be allocated and attached */
memory = fli.page();
}
/* reserve chunkids which are special or unused */
chunk_ids.reserve(0, CHUNKID_START);
addr_t const unused_id = CHUNKID_START + vm_size / GMM_CHUNK_SIZE;
addr_t const unused_count = MAX_CHUNK_IDS - unused_id - 1;
chunk_ids.reserve(unused_id, unused_count);
return vm_memory;
}
static Genode::Vm_connection &vm_connection(long prio = 0)
{
static Genode::Vm_connection vm_session(genode_env(), "VBox vCPUs", prio);
return vm_session;
}
/*
* VCPU handling
*/
static Genode::List<Vcpu_handler> &vcpu_handler_list()
{
static Genode::List<Vcpu_handler> _inst;
return _inst;
}
static Vcpu_handler *lookup_vcpu_handler(unsigned int cpu_id)
{
for (Vcpu_handler *vcpu_handler = vcpu_handler_list().first();
vcpu_handler;
vcpu_handler = vcpu_handler->next())
if (vcpu_handler->cpu_id() == cpu_id)
return vcpu_handler;
return 0;
}
HRESULT genode_setup_machine(ComObjPtr<Machine> machine)
{
ULONG memory_vbox;
HRESULT rc = machine->COMGETTER(MemorySize)(&memory_vbox);
if (FAILED(rc))
return rc;
/*
* Extra memory because of:
* - first chunkid (0) can't be used (VBox don't like chunkid 0)
* - second chunkid (1..2) is reserved for handy pages allocation
* - another chunkid is used additional for handy pages but as large page
*/
size_t const vmm_memory = 1024ULL * 1024 * (memory_vbox + 16) +
(CHUNKID_START + 1) * GMM_CHUNK_SIZE;
HRESULT ret = genode_check_memory_config(machine, vmm_memory);
if (ret == VINF_SUCCESS)
vm_memory(vmm_memory);
return ret;
};
/* Genode specific function */
Genode::Xml_node platform_rom()
{
static Genode::Attached_rom_dataspace const platform(genode_env(),
"platform_info");
return platform.xml().sub_node("hardware");
}
void SUPR3QueryHWACCLonGenodeSupport(VM * pVM)
{
try {
Genode::Xml_node const features = platform_rom().sub_node("features");
pVM->hm.s.svm.fSupported = features.attribute_value("svm", false);
pVM->hm.s.vmx.fSupported = features.attribute_value("vmx", false);
if (pVM->hm.s.svm.fSupported || pVM->hm.s.vmx.fSupported) {
Genode::log("Using ", pVM->hm.s.svm.fSupported ? "SVM" : "VMX",
" virtualization extension.");
return;
}
} catch (...) { /* if we get an exception let hardware support off */ }
Genode::warning("No virtualization hardware acceleration available");
}
/* VirtualBox SUPLib interface */
int SUPR3QueryVTxSupported(void) { return VINF_SUCCESS; }
int SUPR3CallVMMR0Fast(PVMR0 pVMR0, unsigned uOperation, VMCPUID idCpu)
{
switch (uOperation) {
case SUP_VMMR0_DO_HM_RUN:
Vcpu_handler *vcpu_handler = lookup_vcpu_handler(idCpu);
Assert(vcpu_handler);
return vcpu_handler->run_hw(pVMR0);
}
return VERR_INTERNAL_ERROR;
}
int SUPR3PageAllocEx(::size_t cPages, uint32_t fFlags, void **ppvPages,
PRTR0PTR pR0Ptr, PSUPPAGE paPages)
{
Assert(ppvPages);
Assert(!fFlags);
using Genode::Attached_ram_dataspace;
Attached_ram_dataspace * ds = new (heap()) Attached_ram_dataspace(genode_env().ram(),
genode_env().rm(),
cPages * ONE_PAGE_SIZE);
Genode::addr_t const vmm_local = reinterpret_cast<Genode::addr_t>(ds->local_addr<void>());
regions.insert(new (heap()) Region(vmm_local, cPages * ONE_PAGE_SIZE, ds->cap()));
*ppvPages = ds->local_addr<void>();
if (pR0Ptr)
*pR0Ptr = vmm_local;
if (!paPages)
return VINF_SUCCESS;
for (unsigned iPage = 0; iPage < cPages; iPage++)
{
paPages[iPage].uReserved = 0;
paPages[iPage].Phys = vmm_local + iPage * ONE_PAGE_SIZE;
}
return VINF_SUCCESS;
}
enum { MAX_TRACKING = 4 };
static struct {
Free_ids free;
unsigned freed;
unsigned chunkid;
} track_free[MAX_TRACKING];
static void partial_free_large_page(unsigned chunkid, unsigned page_id)
{
unsigned pos = 0;
/* lookup if already exist */
for (; pos < MAX_TRACKING; pos++)
{
if (track_free[pos].chunkid == chunkid)
break;
}
/* if not exist find free place */
if (pos >= MAX_TRACKING) {
for (int i = 0; i < MAX_TRACKING; i++) {
if (track_free[i].chunkid)
continue;
track_free[i].chunkid = chunkid;
track_free[i].freed = 0;
pos = i;
break;
}
/* too many chunkids in use ? */
Assert (pos < MAX_TRACKING);
if (pos >= MAX_TRACKING)
return;
}
try {
/* mark as in use */
track_free[pos].free.set(page_id, 1);
track_free[pos].freed += 1;
if (track_free[pos].freed >= 512) {
/* slow ? optimize ? XXX */
for (unsigned i = 0; i < 512; i++) {
if (!track_free[pos].free.get(i, 1))
throw 1;
track_free[pos].free.clear(i, 1);
}
track_free[pos].chunkid = 0;
track_free[pos].freed = 0;
chunk_ids.free(chunkid);
}
} catch (...) {
Genode::error(__func__," ", __LINE__, " allocation failed ", pos, ":",
chunkid, ":", page_id);
throw;
}
}
int SUPR3CallVMMR0Ex(PVMR0 pVMR0, VMCPUID idCpu, unsigned uOperation,
uint64_t u64Arg, PSUPVMMR0REQHDR pReqHdr)
{
switch (uOperation) {
case VMMR0_DO_GVMM_CREATE_VM:
{
genode_VMMR0_DO_GVMM_CREATE_VM(pReqHdr);
GVMMCREATEVMREQ &req = reinterpret_cast<GVMMCREATEVMREQ &>(*pReqHdr);
SUPR3QueryHWACCLonGenodeSupport(reinterpret_cast<VM *>(req.pVMR3));
return VINF_SUCCESS;
}
case VMMR0_DO_GVMM_REGISTER_VMCPU:
genode_VMMR0_DO_GVMM_REGISTER_VMCPU(pVMR0, idCpu);
return VINF_SUCCESS;
case VMMR0_DO_GVMM_SCHED_HALT:
{
uint64_t const u64NowGip = RTTimeNanoTS();
uint64_t const ns_diff = u64Arg > u64NowGip ? u64Arg - u64NowGip : 0;
if (!ns_diff)
return VINF_SUCCESS;
using namespace Genode;
if (ns_diff > RT_NS_1SEC)
warning(" more than 1 sec vcpu halt ", ns_diff, " ns");
Vcpu_handler *vcpu_handler = lookup_vcpu_handler(idCpu);
Assert(vcpu_handler);
vcpu_handler->halt(u64NowGip + ns_diff);
return VINF_SUCCESS;
}
case VMMR0_DO_GVMM_SCHED_WAKE_UP:
{
Vcpu_handler *vcpu_handler = lookup_vcpu_handler(idCpu);
Assert(vcpu_handler);
vcpu_handler->wake_up();
return VINF_SUCCESS;
}
/* called by 'vmR3HaltGlobal1Halt' */
case VMMR0_DO_GVMM_SCHED_POLL:
return VINF_SUCCESS;
case VMMR0_DO_VMMR0_INIT:
return VINF_SUCCESS;
case VMMR0_DO_GVMM_DESTROY_VM:
case VMMR0_DO_VMMR0_TERM:
case VMMR0_DO_HM_SETUP_VM:
return VINF_SUCCESS;
case VMMR0_DO_HM_ENABLE:
return VINF_SUCCESS;
case VMMR0_DO_GVMM_SCHED_POKE:
{
PVM pVM = reinterpret_cast<PVM>(pVMR0);
Vcpu_handler *vcpu_handler = lookup_vcpu_handler(idCpu);
Assert(vcpu_handler);
if (vcpu_handler)
vcpu_handler->recall(pVM);
return VINF_SUCCESS;
}
case VMMR0_DO_GMM_ALLOCATE_PAGES:
{
/*
* VMM is asking for some host virtual memory pages without
* allocating the backing store actually. The backing store allocation
* takes place via VMMR0_DO_GMM_MAP_UNMAP_CHUNK. The assignment of the
* guest addresses is known at this point.
*/
static_assert(PGM_HANDY_PAGES * ONE_PAGE_SIZE == GMM_CHUNK_SIZE,
"Don't do that - you're going to waste tons of memory");
Assert(pReqHdr->u32Magic == SUPVMMR0REQHDR_MAGIC);
/* XXX VMM/VMMR0/GMMR0.cpp check there XXX */
PGMMALLOCATEPAGESREQ req = reinterpret_cast<PGMMALLOCATEPAGESREQ>(pReqHdr);
for (unsigned i = 0; i < req->cPages; i++) {
RTHCPHYS guest_addr = req->aPages[i].HCPhysGCPhys;
unsigned long page_idx = 0;
unsigned long chunk_id = 0;
try {
page_idx = page_ids.alloc();
chunk_id = CHUNKID_PAGE_START + page_idx / PAGES_SUPERPAGE;
} catch (...) {
Genode::error(__func__," ", __LINE__, " allocation failed");
throw;
}
Assert (page_idx <= GMM_PAGEID_IDX_MASK);
req->aPages[i].idPage = (chunk_id << GMM_CHUNKID_SHIFT) | page_idx;
req->aPages[i].HCPhysGCPhys = vm_memory().local_addr((chunk_id * GMM_CHUNK_SIZE) | (page_idx * ONE_PAGE_SIZE));
Assert(vm_memory().contains(req->aPages[i].HCPhysGCPhys));
#if 0
Genode::log("cPages ", Genode::Hex(req->cPages), " "
"chunkID=", req->aPages[i].idPage >> GMM_CHUNKID_SHIFT, " "
"pageIDX=", req->aPages[i].idPage & GMM_PAGEID_IDX_MASK, " "
"idPage=", Genode::Hex(req->aPages[i].idPage), " "
"GCPhys=", Genode::Hex(guest_addr), " "
"HCPhys=", Genode::Hex(req->aPages[i].HCPhysGCPhys), " "
"(", Genode::Hex(chunk_id * GMM_CHUNK_SIZE), " "
"| ", Genode::Hex(page_idx * ONE_PAGE_SIZE), ") pageidx=", page_idx, " "
"start_vm=", vm_memory().local_addr(0));
#endif
}
return VINF_SUCCESS;
}
case VMMR0_DO_GMM_MAP_UNMAP_CHUNK:
{
PGMMMAPUNMAPCHUNKREQ req = reinterpret_cast<PGMMMAPUNMAPCHUNKREQ>(pReqHdr);
Assert(pReqHdr->u32Magic == SUPVMMR0REQHDR_MAGIC);
Assert(req->idChunkUnmap == NIL_GMM_CHUNKID);
Assert(req->idChunkMap != NIL_GMM_CHUNKID);
Genode::addr_t local_addr_offset = (uintptr_t)req->idChunkMap << GMM_CHUNK_SHIFT;
Genode::addr_t to = vm_memory().local_addr(local_addr_offset);
req->pvR3 = reinterpret_cast<RTR3PTR>(to);
return VINF_SUCCESS;
}
case VMMR0_DO_GMM_QUERY_MEM_STATS:
{
PGMMMEMSTATSREQ req = reinterpret_cast<PGMMMEMSTATSREQ>(pReqHdr);
req->cAllocPages = 0;
req->cMaxPages = 0;
req->cBalloonedPages = 0;
return VINF_SUCCESS;
}
case VMMR0_DO_PGM_ALLOCATE_HANDY_PAGES:
{
/*
* VMM is asking for some host virtual memory pages without
* allocating the backing store actually. The backing store allocation
* takes place via VMMR0_DO_GMM_MAP_UNMAP_CHUNK. The assignment of the
* guest addresses to these host pages is unknown at this point.
*/
PVM pVM = reinterpret_cast<PVM>(pVMR0);
/* based on PGMR0PhysAllocateHandyPages() in VMM/VMMR0/PGMR0.cpp - start */
uint32_t iFirst = pVM->pgm.s.cHandyPages;
uint32_t cPages = RT_ELEMENTS(pVM->pgm.s.aHandyPages) - iFirst;
uint32_t cPagesToUpdate = cPages;
uint32_t cPagesToAlloc = cPages;
/* based on PGMR0PhysAllocateHandyPages() in VMM/VMMR0/PGMR0.cpp - end */
/* based on GMMR0AllocateHandyPages in VMM/VMMR0/GMMR0.cpp - start */
unsigned iPage = 0;
for (; iPage < cPagesToUpdate; iPage++)
{
AssertMsgReturn( ( pVM->pgm.s.aHandyPages[iFirst + iPage].HCPhysGCPhys <= GMM_GCPHYS_LAST
&& !(pVM->pgm.s.aHandyPages[iFirst + iPage].HCPhysGCPhys & PAGE_OFFSET_MASK))
|| pVM->pgm.s.aHandyPages[iFirst + iPage].HCPhysGCPhys == NIL_RTHCPHYS
|| pVM->pgm.s.aHandyPages[iFirst + iPage].HCPhysGCPhys == GMM_GCPHYS_UNSHAREABLE,
("#%#x: %RHp\n", iFirst + iPage, pVM->pgm.s.aHandyPages[iFirst + iPage].HCPhysGCPhys),
VERR_INVALID_PARAMETER);
AssertMsgReturn( pVM->pgm.s.aHandyPages[iFirst + iPage].idPage <= GMM_PAGEID_LAST
/*|| pVM->pgm.s.aHandyPages[iFirst + iPage].idPage == NIL_GMM_PAGEID*/,
("#%#x: %#x\n", iFirst + iPage, pVM->pgm.s.aHandyPages[iFirst + iPage].idPage), VERR_INVALID_PARAMETER);
AssertMsgReturn( pVM->pgm.s.aHandyPages[iFirst + iPage].idPage <= GMM_PAGEID_LAST
/*|| pVM->pgm.s.aHandyPages[iFirst + iPage].idSharedPage == NIL_GMM_PAGEID*/,
("#%#x: %#x\n", iFirst + iPage, pVM->pgm.s.aHandyPages[iFirst + iPage].idSharedPage), VERR_INVALID_PARAMETER);
}
for (; iPage < cPagesToAlloc; iPage++)
{
AssertMsgReturn(pVM->pgm.s.aHandyPages[iFirst + iPage].HCPhysGCPhys == NIL_RTHCPHYS, ("#%#x: %RHp\n", iFirst + iPage, pVM->pgm.s.aHandyPages[iFirst + iPage].HCPhysGCPhys), VERR_INVALID_PARAMETER);
AssertMsgReturn(pVM->pgm.s.aHandyPages[iFirst + iPage].idPage == NIL_GMM_PAGEID, ("#%#x: %#x\n", iFirst + iPage, pVM->pgm.s.aHandyPages[iFirst + iPage].idPage), VERR_INVALID_PARAMETER);
AssertMsgReturn(pVM->pgm.s.aHandyPages[iFirst + iPage].idSharedPage == NIL_GMM_PAGEID, ("#%#x: %#x\n", iFirst + iPage, pVM->pgm.s.aHandyPages[iFirst + iPage].idSharedPage), VERR_INVALID_PARAMETER);
}
Genode::uint64_t chunkid = 0;
try {
chunkid = chunk_ids.alloc();
} catch (...) {
Genode::error(__func__," ", __LINE__, " allocation failed");
throw;
}
if (cPagesToAlloc != GMM_CHUNK_SIZE / ONE_PAGE_SIZE)
Genode::log("special chunkid=", chunkid, " "
"toupdate=", cPagesToUpdate, " "
"toalloc=", cPagesToAlloc, " "
"virt=", Genode::Hex(vm_memory().local_addr(chunkid << GMM_CHUNK_SHIFT)));
for (unsigned i = 0; i < cPagesToUpdate; i++) {
if (pVM->pgm.s.aHandyPages[iFirst + i].idPage != NIL_GMM_PAGEID)
{
pVM->pgm.s.aHandyPages[iFirst + i].idPage = NIL_GMM_PAGEID;
pVM->pgm.s.aHandyPages[iFirst + i].HCPhysGCPhys = NIL_RTHCPHYS;
}
if (pVM->pgm.s.aHandyPages[iFirst + i].idSharedPage != NIL_GMM_PAGEID)
AssertMsgReturn(false, ("%s %u - not implemented", __func__, __LINE__), VERR_GENERAL_FAILURE);
}
for (unsigned i = 0; i < cPagesToAlloc; i++)
{
Assert(pVM->pgm.s.aHandyPages[iFirst + i].HCPhysGCPhys == NIL_RTHCPHYS);
Assert(pVM->pgm.s.aHandyPages[iFirst + i].idPage == NIL_GMM_PAGEID);
Assert(pVM->pgm.s.aHandyPages[iFirst + i].idSharedPage == NIL_GMM_PAGEID);
}
for (unsigned i = 0; i < cPagesToUpdate; i++) {
unsigned reverse = i; //cPagesToUpdate - 1 - i;
Assert (pVM->pgm.s.aHandyPages[iFirst + i].HCPhysGCPhys == NIL_RTHCPHYS);
{
pVM->pgm.s.aHandyPages[iFirst + i].idPage = (chunkid << GMM_CHUNKID_SHIFT) | (iFirst + reverse);
pVM->pgm.s.aHandyPages[iFirst + i].idSharedPage = NIL_GMM_PAGEID;
pVM->pgm.s.aHandyPages[iFirst + i].HCPhysGCPhys = vm_memory().local_addr((chunkid << GMM_CHUNK_SHIFT) | ((iFirst + reverse) * ONE_PAGE_SIZE));
}
}
/* based on GMMR0AllocateHandyPages in VMM/VMMR0/GMMR0.cpp - end */
/* based on PGMR0PhysAllocateHandyPages() in VMM/VMMR0/PGMR0.cpp - start */
pVM->pgm.s.cHandyPages = RT_ELEMENTS(pVM->pgm.s.aHandyPages);
for (uint32_t i = 0; i < RT_ELEMENTS(pVM->pgm.s.aHandyPages); i++)
{
Assert(pVM->pgm.s.aHandyPages[i].idPage != NIL_GMM_PAGEID);
Assert(pVM->pgm.s.aHandyPages[i].idPage <= GMM_PAGEID_LAST);
Assert(pVM->pgm.s.aHandyPages[i].idSharedPage == NIL_GMM_PAGEID);
Assert(pVM->pgm.s.aHandyPages[i].HCPhysGCPhys != NIL_RTHCPHYS);
Assert(!(pVM->pgm.s.aHandyPages[i].HCPhysGCPhys & ~X86_PTE_PAE_PG_MASK));
}
/* based on PGMR0PhysAllocateHandyPages() in VMM/VMMR0/PGMR0.cpp - end */
return VINF_SUCCESS;
}
case VMMR0_DO_PGM_ALLOCATE_LARGE_HANDY_PAGE:
{
/*
* VMM is asking for some host large virtual memory pages without
* allocating the backing store actually. The backing store allocation
* takes place via VMMR0_DO_GMM_MAP_UNMAP_CHUNK. The assignment of the
* guest addresses to these host pages is unknown at this point.
*/
PVM pVM = reinterpret_cast<PVM>(pVMR0);
Assert(pVM);
Assert(pVM->pgm.s.cLargeHandyPages == 0);
try {
Genode::uint64_t chunkid = chunk_ids.alloc();
pVM->pgm.s.aLargeHandyPage[0].idPage = (chunkid << GMM_CHUNKID_SHIFT);
pVM->pgm.s.aLargeHandyPage[0].HCPhysGCPhys = vm_memory().local_addr(chunkid << GMM_CHUNK_SHIFT);
pVM->pgm.s.cLargeHandyPages = 1;
} catch (...) {
Genode::error(__func__," ", __LINE__, " allocation failed");
throw;
}
return VINF_SUCCESS;
}
case VMMR0_DO_GMM_BALLOONED_PAGES:
case VMMR0_DO_GMM_RESET_SHARED_MODULES:
case VMMR0_DO_PGM_FLUSH_HANDY_PAGES:
{
PVM const pVM = reinterpret_cast<PVM>(pVMR0);
PVMCPU const pVCpu = &pVM->aCpus[idCpu];
/* if not in VM shutdown - complain - bug ahead */
if (pVCpu->em.s.enmState != EMSTATE_TERMINATING)
Genode::error("unexpected call of type ", uOperation, ", "
"em state=", (int)pVCpu->em.s.enmState);
return VINF_SUCCESS;
}
case VMMR0_DO_GMM_FREE_PAGES:
{
if (u64Arg)
return VERR_INVALID_PARAMETER;
PVM pVM = reinterpret_cast<PVM>(pVMR0);
PGMMFREEPAGESREQ pReq = reinterpret_cast<PGMMFREEPAGESREQ>(pReqHdr);
AssertPtrReturn(pVM, VERR_INVALID_POINTER);
AssertPtrReturn(pReq, VERR_INVALID_POINTER);
AssertMsgReturn(pReq->Hdr.cbReq >= RT_UOFFSETOF(GMMFREEPAGESREQ, aPages[0]),
("%#x < %#x\n", pReq->Hdr.cbReq, RT_UOFFSETOF(GMMFREEPAGESREQ, aPages[0])),
VERR_INVALID_PARAMETER);
AssertMsgReturn(pReq->Hdr.cbReq == RT_UOFFSETOF(GMMFREEPAGESREQ, aPages[pReq->cPages]),
("%#x != %#x\n", pReq->Hdr.cbReq, RT_UOFFSETOF(GMMFREEPAGESREQ, aPages[pReq->cPages])),
VERR_INVALID_PARAMETER);
uint32_t cPages = pReq->cPages;
PGMMFREEPAGEDESC paPages = &pReq->aPages[0];
GMMACCOUNT enmAccount = pReq->enmAccount;
AssertPtrReturn(paPages, VERR_INVALID_PARAMETER);
AssertMsgReturn(enmAccount > GMMACCOUNT_INVALID && enmAccount < GMMACCOUNT_END, ("%d\n", enmAccount), VERR_INVALID_PARAMETER);
AssertMsgReturn(cPages > 0 && cPages < RT_BIT(32 - PAGE_SHIFT), ("%#x\n", cPages), VERR_INVALID_PARAMETER);
for (unsigned iPage = 0; iPage < cPages; iPage++)
AssertMsgReturn( paPages[iPage].idPage <= GMM_PAGEID_LAST
/*|| paPages[iPage].idPage == NIL_GMM_PAGEID*/,
("#%#x: %#x\n", iPage, paPages[iPage].idPage), VERR_INVALID_PARAMETER);
for (uint32_t last_chunk = ~0U, iPage = 0; iPage < cPages; iPage++)
{
uint32_t const idPage = paPages[iPage].idPage;
uint32_t const page_idx = idPage & GMM_PAGEID_IDX_MASK;
uint32_t const chunkid = idPage >> GMM_CHUNKID_SHIFT;
if (last_chunk != chunkid) {
/* revoke mapping from guest VM */
PGMUnmapMemoryGenode(nullptr, (0UL + chunkid) << GMM_CHUNK_SHIFT, GMM_CHUNK_SIZE);
last_chunk = chunkid;
}
if (CHUNKID_PAGE_START <= chunkid && chunkid <= CHUNKID_PAGE_END) {
try {
page_ids.free((chunkid - CHUNKID_PAGE_START) * PAGES_SUPERPAGE + page_idx);
} catch (...) {
Genode::error(__func__," ", __LINE__, " clearing failed");
throw;
}
}
partial_free_large_page(chunkid, page_idx);
paPages[iPage].idPage = NIL_GMM_PAGEID;
}
return VINF_SUCCESS;
}
case VMMR0_DO_GMM_INITIAL_RESERVATION:
return VINF_SUCCESS;
case VMMR0_DO_GMM_UPDATE_RESERVATION:
return VINF_SUCCESS;
default:
Genode::error("SUPR3CallVMMR0Ex: unhandled uOperation ", uOperation,
" ", (int)VMMR0_DO_PGM_ALLOCATE_HANDY_PAGES, " ",
(int)VMMR0_DO_GMM_QUERY_MEM_STATS);
return VERR_GENERAL_FAILURE;
}
}
/**
* Various support stuff.
*/
uint64_t genode_cpu_hz()
{
static uint64_t cpu_freq = 0;
if (!cpu_freq) {
try {
platform_rom().sub_node("tsc").attribute("freq_khz").value(&cpu_freq);
cpu_freq *= 1000ULL;
} catch (...) {
Genode::error("could not read out CPU frequency");
Genode::Lock lock;
lock.lock();
}
}
return cpu_freq;
}
void PGMUnmapMemoryGenode(void *, RTGCPHYS guest_phys, ::size_t size)
{
vm_connection().detach(guest_phys, size);
}
extern "C" void PGMFlushVMMemory()
{
/* XXX PGMUnmapMemoryGenode on vm_session does not flush all caps */
PGMUnmapMemoryGenode(nullptr, 0, MAX_VM_MEMORY);
}
extern "C" int sched_yield(void)
{
static unsigned long counter = 0;
if (++counter % 50000 == 0)
Genode::warning(__func__, " called ", counter, " times");
return -1;
}
bool create_emt_vcpu(pthread_t * thread, ::size_t stack_size,
void *(*start_routine)(void *), void *arg,
Genode::Cpu_connection * cpu_connection,
Genode::Affinity::Location location,
unsigned int cpu_id, const char * name, long prio)
{
Genode::Xml_node const features = platform_rom().sub_node("features");
bool const svm = features.attribute_value("svm", false);
bool const vmx = features.attribute_value("vmx", false);
if (!svm && !vmx)
return false;
Vcpu_handler *vcpu_handler = 0;
if (vmx)
vcpu_handler = new (heap()) Vcpu_handler_vmx(genode_env(),
stack_size,
location,
cpu_id,
vm_connection(prio),
heap());
if (svm)
vcpu_handler = new (heap()) Vcpu_handler_svm(genode_env(),
stack_size,
location,
cpu_id,
vm_connection(prio),
heap());
vcpu_handler_list().insert(vcpu_handler);
Libc::pthread_create(thread, start_routine, arg,
stack_size, name, cpu_connection, location);
return true;
}
static int _map_memory(Genode::Vm_connection &vm_session,
RTGCPHYS const GCPhys,
RTHCPHYS const vmm_local,
size_t const mapping_size,
bool writeable)
{
for (Region *region = regions.first(); region; region = region->next())
{
if (!region->contains(vmm_local))
continue;
bool retry = false;
do {
Genode::addr_t const offset = vmm_local - region->vmm_local;
try {
vm_session.with_upgrade([&]() {
vm_session.attach(region->cap, GCPhys,
{ .offset = offset,
.size = mapping_size,
.executable = true,
.writeable = writeable });
});
} catch (Genode::Vm_session::Region_conflict) {
/* XXX PGMUnmapMemoryGenode on vm_session does not flush caps */
vm_session.detach(GCPhys, mapping_size);
if (retry) {
Genode::log("region conflict - ", Genode::Hex(GCPhys),
" ", Genode::Hex(mapping_size), " vmm_local=",
Genode::Hex(vmm_local), " ", region->cap,
" region=", Genode::Hex(region->vmm_local),
"+", Genode::Hex(region->size));
size_t detach_size = mapping_size;
while (detach_size) {
size_t const size = 4096;
vm_session.detach(GCPhys + (mapping_size - detach_size), size);
detach_size -= detach_size > size ? size : detach_size;
}
return VERR_PGM_DYNMAP_FAILED;
}
if (!retry) {
retry = true;
continue;
}
}
retry = false;
} while (retry);
return VINF_SUCCESS;
}
Genode::error(" no mapping ?");
return VERR_PGM_DYNMAP_FAILED;
}
class Pgm_guard
{
private:
VM &_vm;
public:
Pgm_guard(VM &vm) : _vm(vm) { pgmLock(&_vm); }
~Pgm_guard() { pgmUnlock(&_vm); }
};
#include "PGMInline.h"
int Vcpu_handler::map_memory(Genode::Vm_connection &vm_session,
RTGCPHYS const GCPhys, RTGCUINT vbox_fault_reason)
{
_ept_fault_addr_type = PGMPAGETYPE_INVALID;
PPGMRAMRANGE const pRam = pgmPhysGetRangeAtOrAbove(_vm, GCPhys);
if (!pRam)
return VERR_PGM_DYNMAP_FAILED;
RTGCPHYS off = GCPhys - pRam->GCPhys;
if (off >= pRam->cb)
return VERR_PGM_DYNMAP_FAILED;
unsigned iPage = off >> PAGE_SHIFT;
PPGMPAGE pPage = &pRam->aPages[iPage];
_ept_fault_addr_type = PGM_PAGE_GET_TYPE(pPage);
/*
* If page is not allocated (== zero page) and no MMIO or active page, allocate and map it
* immediately. Important do not do this if A20 gate is disabled, A20 gate
* is handled by IEM/REM in this case.
*/
if (PGM_PAGE_IS_ZERO(pPage)
&& !PGM_PAGE_IS_ALLOCATED(pPage)
&& !PGM_PAGE_HAS_ACTIVE_ALL_HANDLERS(pPage)
&& !PGM_PAGE_IS_SPECIAL_ALIAS_MMIO(pPage)
&& PGM_A20_IS_ENABLED(_vcpu))
{
Pgm_guard guard(*_vm);
pgmPhysPageMakeWritable(_vm, pPage, GCPhys);
}
if (PGM_PAGE_HAS_ACTIVE_ALL_HANDLERS(pPage) ||
PGM_PAGE_IS_SPECIAL_ALIAS_MMIO(pPage) ||
PGM_PAGE_IS_ZERO(pPage)) {
if (PGM_PAGE_GET_TYPE(pPage) != PGMPAGETYPE_MMIO &&
!PGM_PAGE_IS_ZERO(pPage)) {
Genode::log(__LINE__, " GCPhys=", Genode::Hex(GCPhys), " ",
PGM_PAGE_HAS_ACTIVE_ALL_HANDLERS(pPage), " ",
PGM_PAGE_IS_SPECIAL_ALIAS_MMIO(pPage), " ",
PGM_PAGE_IS_ZERO(pPage), " "
" vbox_fault_reason=", Genode::Hex(vbox_fault_reason));
Genode::log(__LINE__, " GCPhys=", Genode::Hex(GCPhys), " "
"host=", Genode::Hex(PGM_PAGE_GET_HCPHYS(pPage)), " "
"type=", Genode::Hex(PGM_PAGE_GET_TYPE(pPage)), " "
"writeable=true "
"state=", Genode::Hex(PGM_PAGE_GET_STATE(pPage)));
}
return VERR_PGM_DYNMAP_FAILED;
}
if (!PGM_PAGE_IS_ALLOCATED(pPage))
Genode::log("unknown page state ", Genode::Hex(PGM_PAGE_GET_STATE(pPage)),
" GCPhys=", Genode::Hex(GCPhys));
Assert(PGM_PAGE_IS_ALLOCATED(pPage));
if (PGM_PAGE_GET_TYPE(pPage) != PGMPAGETYPE_RAM &&
PGM_PAGE_GET_TYPE(pPage) != PGMPAGETYPE_MMIO2 &&
PGM_PAGE_GET_TYPE(pPage) != PGMPAGETYPE_ROM)
{
if (VERBOSE_PGM)
Genode::log(__LINE__, " GCPhys=", Genode::Hex(GCPhys), " "
"vbox_fault_reason=", Genode::Hex(vbox_fault_reason), " "
"host=", Genode::Hex(PGM_PAGE_GET_HCPHYS(pPage)), " "
"type=", Genode::Hex(PGM_PAGE_GET_TYPE(pPage)), " "
"state=", Genode::Hex(PGM_PAGE_GET_STATE(pPage)));
return VERR_PGM_DYNMAP_FAILED;
}
Assert(!PGM_PAGE_IS_ZERO(pPage));
/* write fault on a ROM region */
if (PGM_PAGE_GET_TYPE(pPage) == PGMPAGETYPE_ROM &&
vbox_fault_reason & VMX_EXIT_QUALIFICATION_EPT_DATA_WRITE) {
Genode::warning(__func__, " - write fault on ROM region!? gp=",
Genode::Hex(GCPhys));
return VERR_PGM_DYNMAP_FAILED;
}
/* nothing should be mapped - otherwise we get endless overmap loops */
Assert(!(vbox_fault_reason & VMX_EXIT_QUALIFICATION_EPT_ENTRY_PRESENT));
bool const writeable = PGM_PAGE_GET_TYPE(pPage) != PGMPAGETYPE_ROM;
PPGMPHYSHANDLER handler = pgmHandlerPhysicalLookup(_vm, GCPhys);
if (VERBOSE_PGM && PGM_PAGE_GET_TYPE(pPage) == PGMPAGETYPE_MMIO2 &&
!handler)
Genode::log(__LINE__, " GCPhys=", Genode::Hex(GCPhys), " ",
"type=", Genode::Hex(PGM_PAGE_GET_TYPE(pPage)), " "
"state=", Genode::Hex(PGM_PAGE_GET_STATE(pPage)), " "
"- MMIO2 w/o handler");
if (PGM_PAGE_GET_TYPE(pPage) == PGMPAGETYPE_MMIO2 && handler) {
PFNPGMPHYSHANDLER pfnHandler = PGMPHYSHANDLER_GET_TYPE(_vm, handler)->CTX_SUFF(pfnHandler);
if (!pfnHandler) {
Genode::log(__LINE__, " GCPhys=", Genode::Hex(GCPhys), " "
"type=", Genode::Hex(PGM_PAGE_GET_TYPE(pPage)));
return VERR_PGM_DYNMAP_FAILED;
}
void *pvUser = handler->CTX_SUFF(pvUser);
if (!pvUser) {
Genode::log(__LINE__, " GCPhys=", Genode::Hex(GCPhys), " "
"type=", Genode::Hex(PGM_PAGE_GET_TYPE(pPage)));
return VERR_PGM_DYNMAP_FAILED;
}
PGMACCESSTYPE access_type = (vbox_fault_reason & VMX_EXIT_QUALIFICATION_EPT_DATA_WRITE) ? PGMACCESSTYPE_WRITE : PGMACCESSTYPE_READ;
VBOXSTRICTRC rcStrict = pfnHandler(_vm, _vcpu, GCPhys, nullptr, nullptr, 0, access_type, PGMACCESSORIGIN_HM, pvUser);
if (rcStrict != VINF_PGM_HANDLER_DO_DEFAULT) {
Genode::log(__LINE__, " nodefault GCPhys=", Genode::Hex(GCPhys), " "
"type=", Genode::Hex(PGM_PAGE_GET_TYPE(pPage)), " "
"pfnHandler=", pfnHandler);
return VERR_PGM_DYNMAP_FAILED;
}
}
/*
if (VERBOSE_PGM)
Genode::log(Genode::Hex(PGM_PAGE_GET_HCPHYS(pPage)),
"->", Genode::Hex(GCPhys),
" type=", PGM_PAGE_GET_TYPE(pPage),
" state=", PGM_PAGE_GET_STATE(pPage),
" pde_type=", PGM_PAGE_GET_PDE_TYPE(pPage),
PGM_PAGE_GET_PDE_TYPE(pPage) == PGM_PAGE_PDE_TYPE_PDE ? "(is pde)" : "(not pde)",
" iPage=", iPage,
" range_start=", Genode::Hex(pRam->GCPhys),
" range_size=", Genode::Hex(pRam->cb),
" pages=", pRam->cb >> PAGE_SHIFT
);
*/
if (PGM_PAGE_GET_PDE_TYPE(pPage) != PGM_PAGE_PDE_TYPE_PDE)
return _map_memory(vm_session, GCPhys, PGM_PAGE_GET_HCPHYS(pPage), 4096, writeable); /* one page mapping */
Genode::addr_t const superpage_log2 = 21;
Genode::addr_t const max_pages = pRam->cb >> PAGE_SHIFT;
Genode::addr_t const superpage_pages = (1UL << superpage_log2) / 4096;
Genode::addr_t const mask = (1UL << superpage_log2) - 1;
Genode::addr_t const super_gcphys = GCPhys & ~mask;
RTGCPHYS max_off = super_gcphys - pRam->GCPhys;
if (max_off > pRam->cb)
return _map_memory(vm_session, GCPhys, PGM_PAGE_GET_HCPHYS(pPage), 4096, writeable); /* one page mapping */
Genode::addr_t const super_hcphys = PGM_PAGE_GET_HCPHYS(pPage) & ~mask;
unsigned const i_s = max_off >> PAGE_SHIFT;
if (i_s + superpage_pages > max_pages)
return _map_memory(vm_session, GCPhys, PGM_PAGE_GET_HCPHYS(pPage), 4096, writeable); /* one page mapping */
if (VERBOSE_PGM)
Genode::log(Genode::Hex(PGM_PAGE_GET_HCPHYS(pPage)), "->",
Genode::Hex(GCPhys), " - iPage ", iPage, " [",
i_s, ",", i_s + superpage_pages, ")", " "
"range_size=", Genode::Hex(pRam->cb));
/* paranoia sanity checks */
for (Genode::addr_t i = i_s; i < i_s + superpage_pages; i++) {
PPGMPAGE page = &pRam->aPages[i];
Genode::addr_t const gcpage = pRam->GCPhys + (i << PAGE_SHIFT);
if (!(super_hcphys == (PGM_PAGE_GET_HCPHYS(page) & ~mask)) ||
!(super_gcphys == (gcpage & ~mask)) ||
!(PGM_PAGE_GET_PDE_TYPE(page) == PGM_PAGE_PDE_TYPE_PDE) ||
!(PGM_PAGE_GET_TYPE(page) == PGM_PAGE_GET_TYPE(pPage)) ||
!(PGM_PAGE_GET_STATE(page) == PGM_PAGE_GET_STATE(pPage)))
{
if (VERBOSE_PGM)
Genode::error(Genode::Hex(PGM_PAGE_GET_HCPHYS(pPage)), "->",
Genode::Hex(GCPhys), " - iPage ", iPage, " i ", i, " [",
i_s, ",", i_s + superpage_pages, ")", " "
"range_size=", Genode::Hex(pRam->cb), " "
"super_hcphys=", Genode::Hex(super_hcphys), "?=", Genode::Hex((PGM_PAGE_GET_HCPHYS(page) & ~mask)), " "
"super_gcphys=", Genode::Hex(super_gcphys), "?=", Genode::Hex((gcpage & ~mask)), " ",
(int)(PGM_PAGE_GET_PDE_TYPE(page)), "?=", (int)PGM_PAGE_PDE_TYPE_PDE, " ",
(int)(PGM_PAGE_GET_TYPE(page)), "?=", (int)PGM_PAGE_GET_TYPE(pPage), " ",
(int)(PGM_PAGE_GET_STATE(page)), "?=", (int)PGM_PAGE_GET_STATE(pPage));
return _map_memory(vm_session, GCPhys, PGM_PAGE_GET_HCPHYS(pPage), 4096, writeable); /* one page mapping */
}
}
/* XXX revoke of old mappings required ? */
/* super page mapping */
return _map_memory(vm_session, super_gcphys, super_hcphys, 1UL << superpage_log2, writeable);
}
Genode::uint64_t * Vcpu_handler::pdpte_map(VM *pVM, RTGCPHYS cr3)
{
Pgm_guard guard(*_vm);
PPGMRAMRANGE pRam = pgmPhysGetRangeAtOrAbove(pVM, cr3);
Assert (pRam);
RTGCPHYS off = cr3 - pRam->GCPhys;
Assert (off < pRam->cb);
unsigned iPage = off >> PAGE_SHIFT;
PPGMPAGE pPage = &pRam->aPages[iPage];
/*
if (VERBOSE_PGM)
Genode::log(__LINE__, " gcphys=", Genode::Hex(cr3),
" host=", Genode::Hex(PGM_PAGE_GET_HCPHYS(pPage)),
" type=", Genode::Hex(PGM_PAGE_GET_TYPE(pPage)),
" state=",Genode::Hex(PGM_PAGE_GET_STATE(pPage)));
*/
Genode::uint64_t *pdpte = reinterpret_cast<Genode::uint64_t*>(PGM_PAGE_GET_HCPHYS(pPage) + (cr3 & PAGE_OFFSET_MASK));
Assert(pdpte != 0);
return pdpte;
}
static PFNRTTIMER rttimer_func = nullptr;
static void * rttimer_obj = nullptr;
enum {
UPDATE_HZ = 1000,
UPDATE_US = 1000 * 1000 / UPDATE_HZ,
UPDATE_NS = UPDATE_US * 1000,
};
PSUPGLOBALINFOPAGE g_pSUPGlobalInfoPage;
class Periodic_gip
{
private :
void update()
{
/**
* We're using rdtsc here since timer_session->elapsed_ms produces
* instable results when the timer service is using the Genode PIC
* driver.
*/
Genode::uint64_t tsc_current = Genode::Trace::timestamp();
/*
* Convert tsc to nanoseconds.
*
* There is no 'uint128_t' type on x86_32, so we use the 128-bit type
* and functions provided by VirtualBox.
*
* nanots128 = tsc_current * 1000*1000*1000 / genode_cpu_hz()
*
*/
RTUINT128U nanots128;
RTUInt128AssignU64(&nanots128, tsc_current);
RTUINT128U multiplier;
RTUInt128AssignU32(&multiplier, 1000*1000*1000);
RTUInt128AssignMul(&nanots128, &multiplier);
RTUINT128U divisor;
RTUInt128AssignU64(&divisor, genode_cpu_hz());
RTUInt128AssignDiv(&nanots128, &divisor);
SUPGIPCPU *cpu = &g_pSUPGlobalInfoPage->aCPUs[0];
/*
* Transaction id must be incremented before and after update,
* read struct SUPGIPCPU description for more details.
*/
ASMAtomicIncU32(&cpu->u32TransactionId);
cpu->u64TSC = tsc_current;
cpu->u64NanoTS = nanots128.s.Lo;
/*
* Transaction id must be incremented before and after update,
* read struct SUPGIPCPU description for more details.
*/
ASMAtomicIncU32(&cpu->u32TransactionId);
/* call the timer function of the RTTimerCreate call */
if (rttimer_func) {
Libc::with_libc([&] () {
rttimer_func(nullptr, rttimer_obj, 0); });
}
for (Vcpu_handler *vcpu_handler = vcpu_handler_list().first();
vcpu_handler;
vcpu_handler = vcpu_handler->next())
{
vcpu_handler->check_time();
}
}
public:
Timer::Connection _timer;
Genode::Signal_handler<Periodic_gip> _timer_handler;
Periodic_gip(Genode::Env &env)
:
_timer(env),
_timer_handler(env.ep(), *this, &Periodic_gip::update)
{
_timer.sigh(_timer_handler);
_timer.trigger_periodic(UPDATE_US);
}
};
struct Attached_gip : Genode::Attached_ram_dataspace
{
Attached_gip()
: Attached_ram_dataspace(genode_env().ram(), genode_env().rm(), PAGE_SIZE)
{
g_pSUPGlobalInfoPage = local_addr<SUPGLOBALINFOPAGE>();
/* checked by TMR3Init */
g_pSUPGlobalInfoPage->u32Version = SUPGLOBALINFOPAGE_VERSION;
g_pSUPGlobalInfoPage->u32Magic = SUPGLOBALINFOPAGE_MAGIC;
g_pSUPGlobalInfoPage->u32Mode = SUPGIPMODE_SYNC_TSC;
g_pSUPGlobalInfoPage->cCpus = 1;
g_pSUPGlobalInfoPage->cPages = 1;
g_pSUPGlobalInfoPage->u32UpdateHz = UPDATE_HZ;
g_pSUPGlobalInfoPage->u32UpdateIntervalNS = UPDATE_NS;
g_pSUPGlobalInfoPage->cOnlineCpus = 0;
g_pSUPGlobalInfoPage->cPresentCpus = 0;
g_pSUPGlobalInfoPage->cPossibleCpus = 0;
g_pSUPGlobalInfoPage->idCpuMax = 0;
g_pSUPGlobalInfoPage->u64CpuHz = genode_cpu_hz();
/* evaluated by rtTimeNanoTSInternalRediscover in Runtime/common/time/timesup.cpp */
g_pSUPGlobalInfoPage->fGetGipCpu = SUPGIPGETCPU_APIC_ID;
SUPGIPCPU *cpu = &g_pSUPGlobalInfoPage->aCPUs[0];
cpu->u32TransactionId = 0;
cpu->u32UpdateIntervalTSC = genode_cpu_hz() / UPDATE_HZ;
cpu->u64NanoTS = 0ULL;
cpu->u64TSC = 0ULL;
cpu->u64CpuHz = genode_cpu_hz();
cpu->cErrors = 0;
cpu->iTSCHistoryHead = 0;
cpu->u32PrevUpdateIntervalNS = UPDATE_NS;
cpu->enmState = SUPGIPCPUSTATE_ONLINE;
cpu->idCpu = 0;
cpu->iCpuSet = 0;
cpu->idApic = 0;
/* schedule periodic call of GIP update function */
static Periodic_gip periodic_gip(genode_env());
}
};
int RTTimerCreate(PRTTIMER *pptimer, unsigned ms, PFNRTTIMER func, void *obj)
{
if (pptimer)
*pptimer = NULL;
/* used solely at one place in TM.cpp */
Assert(!rttimer_func);
/*
* Ignore (10) ms which is too high for audio. Instead the callback
* handler will run at UPDATE_HZ rate.
*/
rttimer_func = func;
rttimer_obj = obj;
return VINF_SUCCESS;
}
int RTTimerDestroy(PRTTIMER)
{
rttimer_obj = nullptr;
rttimer_func = nullptr;
return VINF_SUCCESS;
}
int SUPR3Init(PSUPDRVSESSION *ppSession)
{
static Attached_gip gip;
return VINF_SUCCESS;
}
int SUPR3GipGetPhys(PRTHCPHYS pHCPhys)
{
/*
* Return VMM-local address as physical address. This address is
* then fed to MMR3HyperMapHCPhys. (TMR3Init)
*/
*pHCPhys = (RTHCPHYS)g_pSUPGlobalInfoPage;
return VINF_SUCCESS;
}
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