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31c45b85d7
- Fail on physical memory write like we do for read too. - Don't handle OldVlm1/2 as they appear to be deprecated and unhandled in Windows. - Implement HalHaltSystem to halt execution in a portable way. Default to xHalHaltSystem, a simple infinite loop, if we get called before HAL has initialized. Use this in KiBugCheckDebugBreak and the system shutdown handler instead of x86/AMD64/ARM intrinsics. - Don't try to halt the CPU if KeBugCheck has been called 3 times or more -- if this happens, something has gone very wrong, and we shouldn't try to do anything special. Just loop infinitely. - Fix KiBugCheckDebugBreak -- it shouldn't halt execution when called for the first chance as bugcheck callbacks have not been invoked at this point (nor has the BSOD been displayed). Use SEH to protect against a crash instead of checking KdDebuggerNotPresent as the debugger, if it is present, *could* disconnect while the trap is being handled. Also, don't halt execution if the debugger handled the breakpoint, just break again. - Don't call MmMapIoSpace from HalpReboot! The reboot might take place at elevated IRQL (as high as HIGH_LEVEL if called from KeBugCheck), and thus can't use any Mm support routines. Use a PTE from the reserved HAL region and map it ourselves instead as done in the BIOS call code. - Acquire the display ownership in HalReturnToFirmware in case the caller hasn't done so (as done in the KD reboot routine, for example). - Just include ntndk.h in hal.h instead of including 6 NDK headers (which turns into more than half of the NDK anyway since those headers include other NDK headers). - Crashing and rebooting from KD now works properly. svn path=/trunk/; revision=43380 |
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