2006-11-15 00:08:51 +00:00
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/*
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2021-03-14 23:42:49 +00:00
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* PROJECT: ReactOS Hardware Abstraction Layer
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* LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
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* PURPOSE: HAL Processor Routines
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* COPYRIGHT: Copyright 2006 Alex Ionescu <alex.ionescu@reactos.org>
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2004-12-03 20:10:45 +00:00
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*/
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2006-11-15 00:08:51 +00:00
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/* INCLUDES ******************************************************************/
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2004-12-03 20:10:45 +00:00
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2005-06-18 14:29:31 +00:00
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#include <hal.h>
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2005-06-19 22:53:49 +00:00
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#define NDEBUG
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#include <debug.h>
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2004-12-03 20:10:45 +00:00
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2010-04-01 20:42:43 +00:00
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KAFFINITY HalpActiveProcessors;
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2006-11-15 00:08:51 +00:00
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KAFFINITY HalpDefaultInterruptAffinity;
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- Stub out DbgKdWriteVirtualMemoryApi, DbgKdReadPhysicalMemoryApi, DbgKdWritePhysicalMemoryApi, DbgKdWriteBreakPointExApi, DbgKdRestoreBreakPointExApi, DbgKdSearchMemoryApi and DbgKdFillMemoryApi cases more properly.
- 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
2009-10-11 20:16:45 +00:00
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/* PRIVATE FUNCTIONS *********************************************************/
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VOID
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NTAPI
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HaliHaltSystem(VOID)
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{
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/* Disable interrupts and halt the CPU */
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_disable();
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__halt();
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}
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2004-12-03 20:10:45 +00:00
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/* FUNCTIONS *****************************************************************/
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2006-11-14 20:59:48 +00:00
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/*
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* @implemented
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*/
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BOOLEAN
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NTAPI
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HalAllProcessorsStarted(VOID)
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2004-12-03 20:10:45 +00:00
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{
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2006-11-14 20:59:48 +00:00
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/* Do nothing */
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return TRUE;
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2004-12-03 20:10:45 +00:00
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}
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2006-11-14 20:59:48 +00:00
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/*
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* @implemented
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*/
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2006-09-11 06:50:19 +00:00
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VOID
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NTAPI
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HalProcessorIdle(VOID)
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{
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2006-11-15 00:08:51 +00:00
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/* Enable interrupts and halt the processor */
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2006-11-14 20:59:48 +00:00
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_enable();
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2009-09-27 10:09:38 +00:00
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__halt();
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2006-09-11 06:50:19 +00:00
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}
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2004-12-03 20:10:45 +00:00
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/* EOF */
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