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89 Commits

Author SHA1 Message Date
Stanislav Shwartsman
279c61dc67 updated + fixed instrumentation example for instr histogram, code cleanup in the cpu 2012-03-28 21:11:19 +00:00
Stanislav Shwartsman
7f5f917a34 more SVM implementation 2011-12-27 19:42:11 +00:00
Stanislav Shwartsman
6ae86a059b firt cleanup in SVM code. added intercept check for MSR and IO 2011-12-26 19:57:39 +00:00
Stanislav Shwartsman
b8f2d91b9a fixed compilation err 2011-11-28 21:16:40 +00:00
Stanislav Shwartsman
13feb0772a - 10% emulation speedup with handlers chaining optimization implemented. The 
feature is enabled by default when configure with --enable-all-optimizations
    option, to disable handlers chaining speedups configure with
        --disable-handlers-chaining
 2011-08-21 14:31:08 +00:00
Stanislav Shwartsman
0171324877 small favor to VMX OFF for code that compiled with VMX ON 
avoid function call when not in vmx guest.
 2011-08-09 20:50:51 +00:00
Stanislav Shwartsman
002c86660a reword all the CPU code in preparation for future CPU speedup implementation. 
Bochs emulation can be another 10-15% faster using technique described in paper
"Fast Microcode Interpretation with Transactional Commit/Abort"
http://amas-bt.cs.virginia.edu/2011proceedings/amasbt2011-p3.pdf
 2011-07-06 20:01:18 +00:00
Stanislav Shwartsman
7d80a6ebe0 Adding Id and Rev property to all files 2011-02-24 21:54:04 +00:00
Stanislav Shwartsman
cffe32dd2c remove unused param from exception() call 2010-03-14 15:51:27 +00:00
Stanislav Shwartsman
bd60e0264c change Copyright to Bochs Project 2009-12-04 16:53:12 +00:00
Stanislav Shwartsman
67bf255646 bugfix 2009-08-28 13:05:21 +00:00
Stanislav Shwartsman
4fc66aab31 Fixes for compilation by Visual Studio 2008 2009-04-07 16:12:19 +00:00
Stanislav Shwartsman
9e092a86c3 merge "system" and "segment" blocks of descriptor 2009-04-05 19:09:44 +00:00
Stanislav Shwartsman
f8185a6bc6 Added Intel VMX emulation to Bochs CPU 2009-01-31 10:43:24 +00:00
Stanislav Shwartsman
503cc4c836 merge fix 2009-01-23 09:33:11 +00:00
Stanislav Shwartsman
62005d4fd9 Minimize diff with VMX support branch 2009-01-23 09:26:24 +00:00
Stanislav Shwartsman
9929e6ed78 - updated FSF address 2009-01-16 18:18:59 +00:00
Stanislav Shwartsman
8af7eff93f Oops, remove future stuff 2009-01-15 17:12:18 +00:00
Stanislav Shwartsman
0836545037 Merge io.cc and io_pro.cc (required for future VMX use) 2009-01-15 16:53:08 +00:00
Stanislav Shwartsman
b7839dfcbe Optimize repeat I/O calls 2008-12-29 17:35:35 +00:00
Stanislav Shwartsman
a2e07ff971 - Removed --enable-guest2hos-tlb configure option. The option will be 
always enabled for any Bochs configuration.
 2008-12-11 21:19:38 +00:00
Stanislav Shwartsman
d7fa44d270 optimize code access detection 2008-12-05 22:34:42 +00:00
Stanislav Shwartsman
0f5f075e4d - Fixed theoretically possible pageWriteStamp overflow 2008-10-21 19:50:05 +00:00
Stanislav Shwartsman
23933d731c Remove 4G limit optimization that didn't work quite well 2008-09-08 20:47:33 +00:00
Stanislav Shwartsman
6398ebb1d4 First step of access bits cleanup and optimization - no perf gain yet 2008-08-03 19:53:09 +00:00
Stanislav Shwartsman
cedf6bd88a Small coding style optimization 2008-07-13 13:32:15 +00:00
Stanislav Shwartsman
6f7d39e832 Speedup port read to memory methods 2008-07-13 13:24:36 +00:00
Stanislav Shwartsman
65275ffc02 Remove repeat speedups from 16-bit address size methods - they not gonna speed up anyway because of segment limit issue 2008-06-25 10:34:21 +00:00
Stanislav Shwartsman
1a355e270e split io repeat methods by address size 2008-06-12 20:12:25 +00:00
Stanislav Shwartsman
92568f7525 Faster 32-bit emulation wwith 64-bit enabled mode. 
~10% speedup byu optimization of 32-bit mem access
 2008-06-12 19:14:40 +00:00
Stanislav Shwartsman
50c9674d2e Small optimization in memory access functions 2008-05-03 17:33:30 +00:00
Stanislav Shwartsman
67e534832b Remove from CPU reference to MEM object - it is only one and could be static 2008-04-27 19:49:02 +00:00
Stanislav Shwartsman
892fa99c6f - prefetch hint should be NOP when use in register mode 
- #GP when trying to set reserved bits of CR4_HI in 64-bit mode
- #GP when trying to set reserved bits of EFER MSR
- clear upper part of RSI/RDI when executing rep instructions with 32-bit asize
  even if no repeat iterations were executed (because of RCX=0 for example)
- write SYSENTER_EIP_MSR and SYSENTER_ESP_MSR as 64-bit when x86_64 supported
- set MSR_FMASK reset value
- MSR_FMASK should be 32-bit only
- check for fetch permissions when doing ITLB lookup
- #GP when trying to write non-canonical address to MSR_CSTAR or MSR_LSTAR
- correct repeat instructions timing
- mark TSS busy in TR after it is loaded
 2008-04-16 16:44:06 +00:00
Stanislav Shwartsman
fea49bb270 Fixed linear address wrap in legacy (not long64) mode 2008-04-07 18:39:17 +00:00
Stanislav Shwartsman
167c7075fb Use fastcall gcc attribute for all cpu execution functions - this pure "compiler helper" optimization brings additional 2% speedup to Bochs code 2008-03-22 21:29:41 +00:00
Stanislav Shwartsman
eea5e6eac5 Simplify RepeatSpeedups optimizations - restrict them only to segments which already passed access/limit validation and avoid mass of heavy checks during repeat speedup itself. 2008-03-21 20:35:46 +00:00
Stanislav Shwartsman
063d896226 Optimization in 16-bit resolve functions 
Fixes for hosts which can't support misaligned memory access
 2008-02-07 20:43:13 +00:00
Stanislav Shwartsman
a2897933a3 white space cleanup 2008-02-02 21:46:54 +00:00
Stanislav Shwartsman
37fbb82baa Cleanups. Move bxInstruction_c definition to separate file instr.h 2008-01-29 17:13:10 +00:00
Stanislav Shwartsman
d9984bb3a1 Eliminate BxResolve call from the heart of cpu loop and move into instructions that really require this calculation. Yes, it blows the code of EVERY CPU method but it has >15% speedup ! 2008-01-10 19:37:56 +00:00
Stanislav Shwartsman
79fc57dec8 Fixed more VCPP2008 warnings 2007-12-26 23:07:44 +00:00
Stanislav Shwartsman
38fb3d78be small cleanup in repeat code 2007-12-23 18:09:34 +00:00
Stanislav Shwartsman
085f408078 Fixed possible problem with repeat speedups in 64-bit mode. 
Also was pointed out by MSVCPP2008 warnings
 2007-12-23 17:46:44 +00:00
Stanislav Shwartsman
5d4e32b8da Avoid pointer params for every read_virtual_* except 16-byte SSE and 10-byte x87 reads 2007-12-20 20:58:38 +00:00
Stanislav Shwartsman
b516589e4e Changes in write_virtual_* and pop_* functions -> avoid moving parameteres by pointer 2007-12-20 18:29:42 +00:00
Stanislav Shwartsman
d032a30429 Fixed a lot of code duplication and possible bug with oncorrect implementation of repeat speedup in 64-bit guest 2007-12-17 21:13:55 +00:00
Stanislav Shwartsman
46366b5064 Speedup simulation by eliminating CPL==3 check from read/write_virtual* functions 2007-12-16 21:03:46 +00:00
Stanislav Shwartsman
a83b8ae843 Slight speed improvement in string functions 2007-10-29 15:39:18 +00:00
Stanislav Shwartsman
fbcdfa49c2 Cleanup 2007-10-10 22:20:32 +00:00
Stanislav Shwartsman
deb79e9675 [Bochs-developers] [PATCH] avoid RCX without BX_SUPPORT_X86_64 2007-09-27 16:11:32 +00:00