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Rsx: avoid invalid cmds execution

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eladash 2018-08-01 11:42:46 +03:00 committed by kd-11
parent c80eb1ba02
commit 9e380a4a4a
1 changed files with 10 additions and 21 deletions
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31
rpcs3/Emu/RSX/RSXThread.cpp
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@ -632,7 +632,6 @@ namespace rsx
std::this_thread::sleep_for(10ms);
}
invalid_command_interrupt_raised = true;
continue;
}
@ -716,6 +715,14 @@ namespace rsx
internal_get += 4;
continue;
}
if (cmd & 0x3)
{
// TODO: Check for more invalid bits combinations
LOG_ERROR(RSX, "FIFO: Illegal command(0x%x) was executed. Resetting...", cmd);
internal_get = restore_point.load();
m_return_addr = restore_ret_addr;
continue;
}
//Validate the args ptr if the command attempts to read from it
const u32 args_address = RSXIOMem.RealAddr(internal_get + 4);
@ -736,7 +743,6 @@ namespace rsx
std::this_thread::sleep_for(10ms);
}
invalid_command_interrupt_raised = true;
continue;
}
@ -744,17 +750,8 @@ namespace rsx
mem_faults_count = 0;
auto args = vm::ptr<u32>::make(args_address);
invalid_command_interrupt_raised = false;
bool unaligned_command = false;
u32 first_cmd = (cmd & 0xfffc) >> 2;
if (cmd & 0x3)
{
LOG_WARNING(RSX, "unaligned command: %s (0x%x from 0x%x)", get_method_name(first_cmd).c_str(), first_cmd, cmd & 0xffff);
unaligned_command = true;
}
// Not sure if this is worth trying to fix, but if it happens, its bad
// so logging it until its reported
if (internal_get < put && ((internal_get + (count + 1) * 4) > put))
@ -984,21 +981,13 @@ namespace rsx
if (invalid_command_interrupt_raised)
{
invalid_command_interrupt_raised = false;
//Skip the rest of this command
break;
}
}
if (unaligned_command && invalid_command_interrupt_raised)
{
//This is almost guaranteed to be heap corruption at this point
//Ignore the rest of the chain
LOG_ERROR(RSX, "FIFO contents may be corrupted. Resetting...");
internal_get = restore_point.load();
m_return_addr = restore_ret_addr;
continue;
}
internal_get += (count + 1) * 4;
}
}