gem5  v22.0.0.1
events.hh
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40 
41 #ifndef __KERN_LINUX_EVENTS_HH__
42 #define __KERN_LINUX_EVENTS_HH__
43 
44 #include <functional>
45 #include <string>
46 
47 #include "base/compiler.hh"
48 #include "base/trace.hh"
49 #include "debug/DebugPrintf.hh"
50 #include "kern/linux/printk.hh"
51 #include "kern/system_events.hh"
53 #include "sim/guest_abi.hh"
54 
55 namespace gem5
56 {
57 
58 class ThreadContext;
59 
61 namespace linux
62 {
63 
64 template <typename ABI, typename Base>
65 class DebugPrintk : public Base
66 {
67  public:
68  using Base::Base;
69  void
70  process(ThreadContext *tc) override
71  {
72  if (debug::DebugPrintf) {
73  std::string str;
74  std::function<int(ThreadContext *, Addr, PrintkVarArgs)> func =
75  [&str](ThreadContext *tc, Addr format_ptr,
76  PrintkVarArgs args) -> int {
77  return printk(str, tc, format_ptr, args);
78  };
79  invokeSimcall<ABI>(tc, func);
80  DPRINTFN("%s", str);
81  }
82  Base::process(tc);
83  }
84 };
85 
94 class DmesgDump : public PCEvent
95 {
96  protected:
97  std::string fname;
98 
99  public:
100  DmesgDump(PCEventScope *s, const std::string &desc, Addr addr,
101  const std::string &_fname) :
102  PCEvent(s, desc, addr), fname(_fname)
103  {}
104  void process(ThreadContext *tc) override;
105 };
106 
115 class KernelPanic : public PCEvent
116 {
117  protected:
118  std::string fname;
119 
120  public:
121  KernelPanic(PCEventScope *s, const std::string &desc, Addr addr,
122  const std::string &_fname) :
123  PCEvent(s, desc, addr), fname(_fname)
124  {}
125  void process(ThreadContext *tc) override;
126 };
127 
128 void onUDelay(ThreadContext *tc, uint64_t div, uint64_t mul, uint64_t time);
129 
136 template <typename ABI, typename Base>
137 class SkipUDelay : public Base
138 {
139  private:
146  uint64_t argDivToNs;
147 
153  uint64_t argMultToNs;
154 
155  public:
156  SkipUDelay(PCEventScope *s, const std::string &desc, Addr addr,
157  uint64_t mult, uint64_t div) :
158  Base(s, desc, addr), argDivToNs(div), argMultToNs(mult)
159  {}
160 
161  void
162  process(ThreadContext *tc) override
163  {
164  // Use Addr since it's handled specially and will act as a natively
165  // sized data type.
166  std::function<void(ThreadContext *, Addr)> call_udelay =
167  [this](ThreadContext *tc, Addr time) {
168  onUDelay(tc, argDivToNs, argMultToNs, time);
169  };
170  invokeSimcall<ABI>(tc, call_udelay);
171  Base::process(tc);
172  }
173 };
174 
175 } // namespace linux
176 } // namespace gem5
177 
178 #endif // __KERN_LINUX_EVENTS_HH__
gem5::VegaISA::s
Bitfield< 1 > s
Definition: pagetable.hh:64
gem5::linux::DebugPrintk::process
void process(ThreadContext *tc) override
Definition: events.hh:70
gem5::linux::printk
int printk(std::string &str, ThreadContext *tc, Addr format_ptr, PrintkVarArgs args)
Definition: printk.cc:50
gem5::linux::SkipUDelay::argMultToNs
uint64_t argMultToNs
Value to multiple arg by to create ns.
Definition: events.hh:153
gem5::linux::DmesgDump::process
void process(ThreadContext *tc) override
Definition: events.cc:62
gem5::linux::DebugPrintk
Definition: events.hh:65
gem5::linux::DmesgDump::DmesgDump
DmesgDump(PCEventScope *s, const std::string &desc, Addr addr, const std::string &_fname)
Definition: events.hh:100
gem5::linux::SkipUDelay
A class to skip udelay() and related calls in the kernel.
Definition: events.hh:137
gem5::linux::KernelPanic::fname
std::string fname
Definition: events.hh:118
gem5::linux::DmesgDump
Dump the guest kernel's dmesg buffer to a file in gem5's output directory and print a warning.
Definition: events.hh:94
gem5::auxv::Base
@ Base
Definition: aux_vector.hh:74
gem5::linux::KernelPanic::KernelPanic
KernelPanic(PCEventScope *s, const std::string &desc, Addr addr, const std::string &_fname)
Definition: events.hh:121
gem5::ThreadContext
ThreadContext is the external interface to all thread state for anything outside of the CPU.
Definition: thread_context.hh:94
gem5::PCEvent
Definition: pc_event.hh:45
gem5::linux::KernelPanic
Dump the guest kernel's dmesg buffer to a file in gem5's output directory and panic.
Definition: events.hh:115
compiler.hh
gem5::linux::SkipUDelay::SkipUDelay
SkipUDelay(PCEventScope *s, const std::string &desc, Addr addr, uint64_t mult, uint64_t div)
Definition: events.hh:156
gem5::Addr
uint64_t Addr
Address type This will probably be moved somewhere else in the near future.
Definition: types.hh:147
gem5::GEM5_DEPRECATED_NAMESPACE
GEM5_DEPRECATED_NAMESPACE(GuestABI, guest_abi)
gem5::linux::onUDelay
void onUDelay(ThreadContext *tc, uint64_t div, uint64_t mul, uint64_t time)
Definition: events.cc:84
gem5::linux::KernelPanic::process
void process(ThreadContext *tc) override
Definition: events.cc:73
guest_abi.hh
system_events.hh
gem5::linux::SkipUDelay::argDivToNs
uint64_t argDivToNs
Value to divide arg by to create ns.
Definition: events.hh:146
se_translating_port_proxy.hh
gem5::linux::DmesgDump::fname
std::string fname
Definition: events.hh:97
trace.hh
DPRINTFN
#define DPRINTFN(...)
Definition: trace.hh:214
gem5::guest_abi::VarArgs
Definition: varargs.hh:150
gem5
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
Definition: gpu_translation_state.hh:37
gem5::linux::SkipUDelay::process
void process(ThreadContext *tc) override
Definition: events.hh:162
gem5::PCEventScope
Definition: pc_event.hh:67
gem5::loader::Linux
@ Linux
Definition: object_file.hh:85
gem5::X86ISA::addr
Bitfield< 3 > addr
Definition: types.hh:84
printk.hh

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