/*
- * Copyright (c) 2011-2014 ARM Limited
+ * Copyright (c) 2011-2014,2017 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
#include "base/trace.hh"
#include "config/use_kvm.hh"
#if USE_KVM
+#include "cpu/kvm/base.hh"
#include "cpu/kvm/vm.hh"
#endif
+#include "cpu/base.hh"
#include "cpu/thread_context.hh"
#include "debug/Loader.hh"
#include "debug/WorkItems.hh"
kernelEnd = kernel->bssBase() + kernel->bssSize();
kernelEntry = kernel->entryPoint();
+ // If load_addr_mask is set to 0x0, then auto-calculate
+ // the smallest mask to cover all kernel addresses so gem5
+ // can relocate the kernel to a new offset.
+ if (loadAddrMask == 0) {
+ Addr shift_amt = findMsbSet(kernelEnd - kernelStart) + 1;
+ loadAddrMask = ((Addr)1 << shift_amt) - 1;
+ }
+
// load symbols
if (!kernel->loadGlobalSymbols(kernelSymtab))
fatal("could not load kernel symbols\n");
// Loading only needs to happen once and after memory system is
// connected so it will happen in initState()
}
+
+ for (const auto &obj_name : p->kernel_extras) {
+ inform("Loading additional kernel object: %s", obj_name);
+ ObjectFile *obj = createObjectFile(obj_name);
+ fatal_if(!obj, "Failed to additional kernel object '%s'.\n",
+ obj_name);
+ kernelExtras.push_back(obj);
+ }
}
// increment the number of running systems
return false;
}
-/**
- * Setting rgdb_wait to a positive integer waits for a remote debugger to
- * connect to that context ID before continuing. This should really
- be a parameter on the CPU object or something...
- */
-int rgdb_wait = -1;
-
ContextID
System::registerThreadContext(ThreadContext *tc, ContextID assigned)
{
GDBListener *gdbl = new GDBListener(rgdb, port + id);
gdbl->listen();
- if (rgdb_wait != -1 && rgdb_wait == id)
- gdbl->accept();
+ BaseCPU *cpu = tc->getCpuPtr();
+ if (cpu->waitForRemoteGDB()) {
+ inform("%s: Waiting for a remote GDB connection on port %d.\n",
+ cpu->name(), gdbl->getPort());
+ gdbl->accept();
+ }
if (remoteGDB.size() <= id) {
remoteGDB.resize(id + 1);
}
}
// Load program sections into memory
kernel->loadSections(physProxy, loadAddrMask, loadAddrOffset);
+ for (const auto &extra_kernel : kernelExtras) {
+ extra_kernel->loadSections(physProxy, loadAddrMask,
+ loadAddrOffset);
+ }
DPRINTF(Loader, "Kernel start = %#x\n", kernelStart);
DPRINTF(Loader, "Kernel end = %#x\n", kernelEnd);
remoteGDB[context_id]->replaceThreadContext(tc);
}
+bool
+System::validKvmEnvironment() const
+{
+#if USE_KVM
+ if (threadContexts.empty())
+ return false;
+
+ for (auto tc : threadContexts) {
+ if (dynamic_cast<BaseKvmCPU*>(tc->getCpuPtr()) == nullptr) {
+ return false;
+ }
+ }
+ return true;
+#else
+ return false;
+#endif
+}
+
Addr
System::allocPhysPages(int npages)
{