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2610 Commits

Author SHA1 Message Date
Stanislav Shwartsman
e7a4a1bec8 surprisingly, opensuse 12.1 requre alignment check support in hardware so I can't disable it by default for all configurations. 
but in case you want a few %% of extra emulation performance - it is still possible to disable it with configure option.
most guests I saw do not use it !
 2012-03-26 19:33:38 +00:00
Stanislav Shwartsman
8b78f6ca2c fixed prev commit 2012-03-26 19:24:20 +00:00
Stanislav Shwartsman
97a6d0ad46 missed ; 2012-03-26 19:08:28 +00:00
Stanislav Shwartsman
547678e8bd fixed compilation error in 386 config. also fixed bugs in tasking code found by new assertion added in stack.cc new code 2012-03-26 19:05:58 +00:00
Stanislav Shwartsman
bfca96f8ce added TLB contents to param tree for debugger purposes. Nopw the TLB could be browsed through param-tree in debugger and GUI debugger as well 2012-03-25 20:56:18 +00:00
Stanislav Shwartsman
d4688e8b95 - Do not compile support for alignment check (#AC exception) by default 
for CPU emulation performance reasons, the alignment check compilation
    still can be enabled using configure option --enable-alignment-check.

There is no software in the world which enable #AC exception checking, this
x86 feature is completely legacy but its emulation support costs up to 3-5%
emulation speed.

The checking for #AC exception enable still will be done, if

 CPL == 3, EFLAGS.AC = 1 and CR0.AM = 1

but the alignment check is not compiled in, the Bochs will PANIC with corresponding message.
You can press 'always continue' and ignore the PANIC, the simulation will continue as if alignment checking is not enabled.
 2012-03-25 19:07:17 +00:00
Stanislav Shwartsman
3ca29cbdf3 stack direct access optimization - 5% emu speedup to all 32-bit guests, for 64-bit guests speedup is less because they have less stack accesses 2012-03-25 11:54:32 +00:00
Stanislav Shwartsman
b5a33e82ac fixed a lot of code duplication in debugging/instrumentation of mem access 2012-03-20 18:26:04 +00:00
Stanislav Shwartsman
e1506e3e29 some cleanup in CPU code + patch SVM SS.DPL instead of failing VMRUN 2012-03-19 19:24:15 +00:00
Stanislav Shwartsman
a8565cdfc3 added missed line in MSR fix 2012-03-17 12:07:27 +00:00
Stanislav Shwartsman
bd4aa017fe Lazy flags improvement patch by Darek Mihocka - measured 5% speedup everywhere accross the board 
The problem with Parity is it is generally referenced very rarely so the current lazy flags code is not efficient to updated Parify flag only (because it updates low 8 bits of .result value the existing Zero Flag has to be shadowed in .auxbits.
So I flipped it around, to make Parity be shadowed in auxbits.  .result now is only needed to derive Zero Flag, and both Sign and Parify are derived from .result + .auxbits (as Zero Flag is now).  For the 90% of the conditional jumps that are JZ or JNZ, this is a speedup.
Parity is now derived from 8 bits in .result and 8 bits in .auxbits, and Sign is derived from one flag in .result and 1 bit in .auxbits by XOR-ing them all together.  It makes the code sequences for SAHF and POPF simpler too.
 2012-03-17 08:51:52 +00:00
Stanislav Shwartsman
5a33b1be84 mvoed MWAIT_IS_NOP option from CPUID to CPU - it has meaning even if CPUID tree is not used because CPU is configured with CPUDB pre-defined configuration 2012-03-15 19:46:57 +00:00
Stanislav Shwartsman
9d5d33632c VMX: Fixed reading of VMX MSR-HI (0xC0000000 <= index <= 0xC0001FFF) bitmaps / Fixed memory overflow 2012-03-14 19:42:06 +00:00
Stanislav Shwartsman
a9d03340d6 correctly handle EFER.LMA and EFER.LME with unrestricted guests 2012-03-14 19:17:27 +00:00
Stanislav Shwartsman
a668ff9908 small code optimization 2012-03-13 19:41:10 +00:00
Stanislav Shwartsman
25ffaeeea8 fixed VMX issue + small code reorg 2012-03-13 15:18:21 +00:00
Stanislav Shwartsman
9c27d279b9 removed incorrect BX_INFO msg 2012-03-07 20:07:57 +00:00
Stanislav Shwartsman
562c8c91d1 fixed FMA4 instructions sources 2012-03-06 15:18:35 +00:00
Stanislav Shwartsman
bde2f4d829 correctly handle #UD because of XOP.VVV 2012-03-05 19:48:55 +00:00
Stanislav Shwartsman
95e4191cd1 any vex instruction must use VEX.VVV or #UD 2012-03-04 17:56:22 +00:00
Stanislav Shwartsman
c52d97cb7f fixed comments in paging.cc 2012-02-28 22:39:33 +00:00
Stanislav Shwartsman
1f14c171ed rename some SSE handlers 2012-02-28 18:53:58 +00:00
Stanislav Shwartsman
d4541f1a88 removed dedicated handler for MOVNTI - can be replaced with existing handlers 2012-02-27 15:50:43 +00:00
Stanislav Shwartsman
959ab435cf fixed compilation err with SVM 2012-02-24 21:31:31 +00:00
Stanislav Shwartsman
86c7033a63 name cpu log functions in lower case 2012-02-23 19:31:02 +00:00
Stanislav Shwartsman
1599031869 changed BX_INFO back to BX_DEBUG 2012-02-19 20:16:10 +00:00
Stanislav Shwartsman
f48317affc SVM: Added EXITINFO2 write on VMEXIT (missed in prev commit) 
Added phenom_8650_toliman <AMD Phenom X3 8650 (Toliman)> comment into .bochsrc example with all other supported CPU configs.
Added missed SVM definitions into Toliman CPUDB module
 2012-02-19 20:15:23 +00:00
Stanislav Shwartsman
92376fb693 svm updates 2012-02-19 12:16:58 +00:00
Stanislav Shwartsman
c70a42c5d7 merged patch ftom SF bug 3459998 Bochs cannot be compiled outside the source tree 2012-02-19 12:16:14 +00:00
Stanislav Shwartsman
c2670b40d5 small cleanup in paging code 2012-02-15 19:49:35 +00:00
Stanislav Shwartsman
2f7e5ab3a3 fixed bugs in toliman configuration 2012-02-14 22:01:50 +00:00
Stanislav Shwartsman
5c02e7cebd do not need to load PAE PDPTRs if going to nested paging mode 2012-02-14 12:36:39 +00:00
Stanislav Shwartsman
bb7a648d91 Major commit ! 
------------

Implemented SVN nested paging support - the Virtual Box boots perfectly with Nested Paging guest !
A lot of code duplication was added for now - major cleanup will follow later.

! Added AMD Phenom X3 8650 (Toliman) configuration to the CPUDB - this configuration has Nested Paging enabled.

Some CPUID modules rework done to enable Toliman configuration.

Ckean up 'executable' attribute from all CPU source files.
 2012-02-13 23:29:01 +00:00
Stanislav Shwartsman
deaf58b130 read from CPUDB svm extensions 2012-02-13 21:55:27 +00:00
Stanislav Shwartsman
813fe4e6b9 reduce code duplication - continue preparing for nested paging implementation 2012-02-13 20:06:04 +00:00
Stanislav Shwartsman
4d0a5c1b07 - VMX: EPT misconfiguration should always take priority above EPT permissions violation (translate_guest_physical corner case bug) 
- VMX: EPT reserved bits set should cause EPT misconfiguration and not EPT violation
- VMX: EPT walk for guest CR3 address should be considered as 'page walk'
 2012-02-12 21:30:22 +00:00
Stanislav Shwartsman
0b5f798af1 re-commit changes from SVN rev11026 which were accidentially undo'ed by last Volker's commit 2012-02-12 19:13:57 +00:00
Volker Ruppert
de94b08a1a - class bx_list_c now contains a chained list of parameters. Removed the now 
obsolete maxsize parameter from all lists.
 2012-02-12 18:43:20 +00:00
Stanislav Shwartsman
855d2adece cleanups in paging code 2012-02-12 16:09:35 +00:00
Stanislav Shwartsman
fa182e96b5 for future nested paging: under NP PDPTR CACHE will contain NP PDPTR entries 2012-02-10 20:39:46 +00:00
Stanislav Shwartsman
b497077b70 intel disclosed more cpuid bits 2012-02-08 19:54:22 +00:00
Stanislav Shwartsman
9bebe91826 eliminate duplicated cpu methods by adding extra param to opcodes with no modrm 2012-02-03 10:24:59 +00:00
Stanislav Shwartsman
14ec87768e expand FCMOV function to 8 different functions - each one is much simpler to implement and understand 2012-02-01 12:07:53 +00:00
Stanislav Shwartsman
2e44613032 dos2unix for avx_pfp.cc 2012-01-30 15:29:22 +00:00
Stanislav Shwartsman
457c56c822 fixup for EPT paging 2012-01-22 18:39:15 +00:00
Stanislav Shwartsman
fc6712e3a3 undo part of prev paging commit 2012-01-19 20:01:32 +00:00
Stanislav Shwartsman
12afed23a1 small fix and cleanups in paging code 2012-01-19 06:38:22 +00:00
Stanislav Shwartsman
9461797886 added extra param to debugger phy access callback + cleanup in vmexit functions 2012-01-17 21:50:15 +00:00
Stanislav Shwartsman
f4b49633d4 paging code rework (cont) 2012-01-17 18:20:55 +00:00
Stanislav Shwartsman
0d64a6cb92 fixed paging bug in previous commit 2012-01-16 15:26:25 +00:00