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+/*
+ * Copyright (c) 2003 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "kernel_loader.hh"
+#include "exec_context.hh"
+#include "object_file.hh"
+#include "memory_control.hh"
+#include "physical_memory.hh"
+#include "symtab.hh"
+#include "remote_gdb.hh"
+#include "vtophys.hh"
+#include "system.hh"
+#include "trace.hh"
+
+using namespace std;
+
+vector<System *> System::systemList;
+
+int System::numSystemsRunning = 0;
+
+System::System(const std::string _name,
+ MemoryController *_memCtrl,
+ PhysicalMemory *_physmem,
+ const std::string &kernel_path,
+ const std::string &console_path,
+ const std::string &palcode,
+ const std::string &boot_osflags)
+ : SimObject(_name),
+ kernel_panic_event(&pcEventQueue, "kernel panic"),
+ console_panic_event(&pcEventQueue, "console panic"),
+ badaddr_event(&pcEventQueue, "badaddr"),
+ skip_power_state(&pcEventQueue, "tl_v48_capture_power_state"),
+ skip_scavenge_boot(&pcEventQueue, "pmap_scavenge_boot"),
+ printf_event(&pcEventQueue, "printf"),
+ debug_printf_event(&pcEventQueue, "debug_printf", false),
+ debug_printfr_event(&pcEventQueue, "debug_printfr", true),
+ dump_mbuf_event(&pcEventQueue, "dump_mbuf"),
+ memCtrl(_memCtrl),
+ physmem(_physmem),
+ remoteGDB(NULL),
+ gdbListen(NULL)
+{
+ kernelSymtab = new SymbolTable;
+ consoleSymtab = new SymbolTable;
+
+ EcoffObject kernel(kernel_path);
+ EcoffObject console(console_path);
+
+ if (!kernel.loadGlobals(kernelSymtab))
+ panic("could not load kernel symbols\n");
+
+ if (!console.loadGlobals(consoleSymtab))
+ panic("could not load console symbols\n");
+
+ // Load pal file
+ loadPal(palcode, physmem, PAL_BASE);
+
+ // copy of initial reg file contents
+ initRegs = new RegFile;
+ memset(initRegs, 0, sizeof(RegFile));
+
+ // Load console file
+ loadKernel(console_path, physmem);
+
+ // Load kernel file
+ loadKernel(kernel_path, physmem, initRegs,
+ &kernelStart, &kernelEnd, &kernelEntry);
+
+ DPRINTF(Loader, "Kernel loaded...\n");
+
+#ifdef FULL_SYSTEM
+ Addr addr = 0;
+
+ for(int i = 0; i < 12/*MAX_CPUS*/; i++)
+ xc_array[i] = (ExecContext *) 0;
+
+ num_cpus = 0;
+
+ if (kernelSymtab->findAddress("enable_async_printf", addr)) {
+ Addr paddr = vtophys(physmem, addr);
+ uint8_t *enable_async_printf =
+ physmem->dma_addr(paddr, sizeof(uint32_t));
+
+ if (enable_async_printf)
+ *(uint32_t *)enable_async_printf = 0;
+ }
+
+ if (consoleSymtab->findAddress("env_booted_osflags", addr)) {
+ Addr paddr = vtophys(physmem, addr);
+ char *osflags = (char *)physmem->dma_addr(paddr, sizeof(uint32_t));
+
+ if (osflags)
+ strcpy(osflags, boot_osflags.c_str());
+ }
+
+ if (kernelSymtab->findAddress("panic", addr))
+ kernel_panic_event.schedule(addr);
+ else
+ panic("could not find kernel symbol \'panic\'");
+
+ if (consoleSymtab->findAddress("panic", addr))
+ console_panic_event.schedule(addr);
+
+ if (kernelSymtab->findAddress("badaddr", addr))
+ badaddr_event.schedule(addr);
+ else
+ panic("could not find kernel symbol \'badaddr\'");
+
+ if (kernelSymtab->findAddress("tl_v48_capture_power_state", addr))
+ skip_power_state.schedule(addr);
+
+ if (kernelSymtab->findAddress("pmap_scavenge_boot", addr))
+ skip_scavenge_boot.schedule(addr);
+
+#if TRACING_ON
+ if (kernelSymtab->findAddress("printf", addr))
+ printf_event.schedule(addr);
+
+ if (kernelSymtab->findAddress("m5printf", addr))
+ debug_printf_event.schedule(addr);
+
+ if (kernelSymtab->findAddress("m5printfr", addr))
+ debug_printfr_event.schedule(addr);
+
+ if (kernelSymtab->findAddress("m5_dump_mbuf", addr))
+ dump_mbuf_event.schedule(addr);
+#endif
+
+#endif
+
+ // add self to global system list
+ systemList.push_back(this);
+
+ numSystemsRunning++;
+}
+
+
+System::~System()
+{
+ delete kernelSymtab;
+ delete consoleSymtab;
+ delete initRegs;
+}
+
+
+void
+System::initBootContext(ExecContext *xc)
+{
+ xc->regs = *initRegs;
+
+ remoteGDB = new RemoteGDB(this, xc);
+ gdbListen = new GDBListener(remoteGDB, 7000);
+ gdbListen->listen();
+
+ // Reset the system
+ //
+ TheISA::init(physmem, &xc->regs);
+}
+
+
+void
+System::registerExecContext(ExecContext *xc)
+{
+ if (num_cpus == 12/*MAX_CPUS*/)
+ panic("Too many CPU's\n");
+ xc_array[xc->cpu_id] = xc;
+ num_cpus++;
+}
+
+
+void
+System::printSystems()
+{
+ vector<System *>::iterator i = systemList.begin();
+ vector<System *>::iterator end = systemList.end();
+ for (; i != end; ++i) {
+ System *sys = *i;
+ cerr << "System " << sys->name() << ": " << hex << sys << endl;
+ }
+}
+
+
+extern "C"
+void
+printSystems()
+{
+ System::printSystems();
+}
+
+
+BEGIN_DECLARE_SIM_OBJECT_PARAMS(System)
+
+ SimObjectParam<MemoryController *> mem_ctl;
+ SimObjectParam<PhysicalMemory *> physmem;
+
+ Param<string> kernel_code;
+ Param<string> console_code;
+ Param<string> pal_code;
+ Param<string> boot_osflags;
+
+END_DECLARE_SIM_OBJECT_PARAMS(System)
+
+BEGIN_INIT_SIM_OBJECT_PARAMS(System)
+
+ INIT_PARAM(mem_ctl, "memory controller"),
+ INIT_PARAM(physmem, "phsyical memory"),
+ INIT_PARAM(kernel_code, "file that contains the kernel code"),
+ INIT_PARAM(console_code, "file that contains the console code"),
+ INIT_PARAM(pal_code, "file that contains palcode"),
+ INIT_PARAM_DFLT(boot_osflags, "flags to pass to the kernel during boot",
+ "a")
+
+END_INIT_SIM_OBJECT_PARAMS(System)
+
+
+CREATE_SIM_OBJECT(System)
+{
+ System *sys = new System(getInstanceName(), mem_ctl, physmem,
+ kernel_code, console_code, pal_code,
+ boot_osflags);
+
+ return sys;
+}
+
+REGISTER_SIM_OBJECT("System", System)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 05:37:55 +0000