TDX Module Life Cycle Part 0 (SEAMLDR)
New CPU privileges and software layer for Intel TDX Secure Arbitration Mode (SEAM) is an extension of Virtual Machines Extension (VMX). It introduces new VMX root mode called SEAM root. The primar...
Ruach
Gem5 Interrupt Handling O3
Interrupt makes the commit stage stop further instructions fetching 813 template <class Impl> 814 void 815 DefaultCommit<Impl>::commit() 816 { 817 if (FullSystem) { 818 ...
Basecpu
gem5/src/cpu/BaseCPU.py 65 if buildEnv['TARGET_ISA'] == 'alpha': 66 from m5.objects.AlphaTLB import AlphaDTB as ArchDTB, AlphaITB as ArchITB 67 from m5.objects.AlphaInterrupts import Alp...
O3 Cache Block
Cache internal class hierarchies in GEM5 92 /** 93 * A basic cache interface. Implements some common functions for speed. 94 */ 95 class BaseCache : public ClockedObject 96 { ...... 3...
O3 Cache Recv
Cache receive 2510 bool 2511 BaseCache::MemSidePort::recvTimingResp(PacketPtr pkt) 2512 { 2513 cache->recvTimingResp(pkt); 2514 return true; 2515 } BaseCache::recvTimingResp 419 void ...
O3 Cpu Commit
Memory read and write of the O3 CPU Memory read 621 LSQUnit<Impl>::read(LSQRequest *req, int load_idx) 622 { 623 LQEntry& load_req = loadQueue[load_idx]; 624 const DynInstPtr&...
O3 Cpu Commit
Commit (Commit::commitInsts()). Once the instruction reaches the head of ROB, it will be committed and released from ROB.
O3 Cpu Iew
IEW: Issue/Execute/Writeback GEM5 handles both execute and writeback when the execute() function is called on an instruction. Therefore, GEM5 combines Issue, Execute, and Writeback stage into ...
O3 Cpu Rename
Rename It maintains the rename history of all instructions with destination registers, storing the arch register, the new physical register, and the old physical register. The information is requ...
O3 Cpu Decode
Sending fetched instructions to decode stage gem5/src/cpu/o3/fetch_impl.hh 961 962 // Pick a random thread to start trying to grab instructions from 963 auto tid_itr = activeThreads->...