[NTOS]: Fix KiEnterInterruptFrame. In the case of a V86 trap, the segments were overriden because this wasn't a kernel trap (missing if/elseif).
svn path=/trunk/; revision=45353
[HAL]: Implement support for Level interrupts, which are used by certain EISA cards, and more particularly, all PCI hardware. Level interrupts were not previously handled correctly, being treated as edge/latched interrupts instead.
[NTOS/HAL]: Remove VDM Alert KPCR hack (which was buggy). Now the PKTRAP_FRAME is passed as a parameter to HalpEndSoftwareInterrupt/HalEndSystemInterrupt. This also removes the HalpNestedTrap ASM hack, since the call can now be done in C.
[PERF]: On real machines, writing the PIC mask is a relatively expensive I/O operation, and IRQL lower/raise can happen hundreds of times a second. Lazy IRQL provides an important optimization.
[PERF]: Correctly handling level interrupts as level interrupts allows for faster, and more efficient, IRQ handling.
svn path=/trunk/; revision=45320
- DejaVu Sans Mono seems to have a bug which makes Windows and Arwinss report double max char width as compared to a real char width. Since only a monospace font could be used, measure exact char width using GetTextExtentPoint32W and use that value.
svn path=/trunk/; revision=45319
[NTOS]: Remove thousands of lines of assembly that are not needed anymore.
[NTOS]: Put all interrupt code in irqobj.c (platform-specific).
[NTOS]: DPC Interrupt is really the thread scheduler interrupt (DPC work happens in C), which mostly does contexts switching and scheduling decisions, so move it to ctxswitch.S
svn path=/trunk/; revision=45309
- Make ValidateRect a direct call, update related. Update UpdateWindow and some code sorting. Getting ready for WND switch.
svn path=/trunk/; revision=45307
[NTOS]: Implement KiUnexpectedInterruptTail and KiUnexpectedInterrupt in C as well.
This is [PERF] too since the C interrupt handling code is a lot more efficient than the ASM one. Numbers look good here.
svn path=/trunk/; revision=45304
[DDK]: KeGetCurrentProcessorNumber should not return a 32-bit DWORD combined of "ProcessorNumer", "VdmAlert" and "SecondLevelCacheAssociativity" because those 3 fields are probably not equal to a processor number. Having an L2 Cache will no longer result in ReactOS believing you have a 32000 core CPU.
svn path=/trunk/; revision=45299
- Added -P Pipeline option for Powershell support, see below
- Renaming some structs to avoid potential naming conflicts with windows.h
- stdin/out -> stdIn/Out for redirecting
- Fixed potential mem leak
- A little more tracing and cleanup
Updated piperead (Jan Roeloffzen) Bug 5146
- Added Pipe client function, based on msdn example
- Improved option handling (try piperead -h)
- logging, error handling
- Integrated in build (pipetools.mak)
svn path=/trunk/; revision=45287
[NTOS]: Enable V8086 Fast-V86 Trap mode for Trap 6 (Invalid Opcode). Because we are now taking zero traps during V8086 mode, we can't do the "BOP lookahead", so the only trap we do get is when we hit the BOP/invalid opcode itself.
[NTOS]: Multiple fixes to V8086 opcode emulation code that I noticed while looking through the source. Also multiple fixes to VDM code.
This change will only impact real hardware and VMWare, since QEMU does not support VME. On VMWare, performance increased up to 400% during bootup (80 million cycles instead of 300 million, in one test).
svn path=/trunk/; revision=45282
[NTOS]: Support systems without SYSENTER. Nothing was actually disabling the SYSEXIT mechanism recently enabled. Now IRET is always used unless a SYSENTER machine is discovered, in which case the jmp to the IRET code is patched with a jmp to SYSEXIT code.
[PERF]: Set WP0 bit in CR0 later, thus allowing the existing runtime patches (and this new one) to function without requiring MmSetPageProtect. Saves TLB flushes and page table walking/mapping on boot.
Left in some debug prints to see what buildbot reports...will remove if it survives.
svn path=/trunk/; revision=45280
[NTOS]: Remove said hacks and have a normal C implementation of KeUpdateSystemTime. It exits the interrupt through a soft interrupt exit.
[NTOS]: Implement 4 lines of support code needed to handle interrupts during V8086 mode, which were lacking since we weren't hitting this case yet.
Note that now the KeUpdateSystemTime interface is not "compatible" with Windows anymore. This does not matter, since the only possible caller of KeUpdateSystemTime is a very specific HAL routine that needs a very specific stack layout to actually work, so the chance of anyone calling this API is absolutely zero (no, not even some experimental driver. It's absolutely impossible).
svn path=/trunk/; revision=45276
[NTOS]: Modify the semantics of how a fast system call (SYSENTER) is processed in the stub, by moving more work in the C handler, such as setting up FS and getting the correct argument stack. Saves us some cycles too (and allows the trap stub macro to be more generic).
svn path=/trunk/; revision=45266
[NTOS]: Make TRAP_HANDLER_PROLOG handle software traps, in which the interrupt stack must be faked.
[NTOS]: Optimize TRAP_HANDLER_PROLOG by not pushing an error code and then making space on the stack without the error code -- just make space with the error code in the first place (nobody reads the value, so having it zero or garbage isn't important).
[HAL]: Implement the APC and DPC software interrupt traps in C instead of ASM. Delete all contents of irq.S except the two GENERATE_TRAP_HANDLER stubs.
svn path=/trunk/; revision=45244
