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378 Commits

Author SHA1 Message Date
Stanislav Shwartsman
da21b16d7f remove cpudb.h from bochs.h 2021-07-25 18:01:28 +00:00
Stanislav Shwartsman
0cba8b66c9 more robust handling of SVM VMCB host ptr 2021-07-23 09:30:17 +00:00
Stanislav Shwartsman
7cc9cffeed remove siminterface.h from bochs.h and include it only where required 2021-01-30 19:40:18 +00:00
Stanislav Shwartsman
4023b640d6 Protection Keys: Implemented Supervisor-Mode Protection Keys (PKS) 2020-05-29 12:35:30 +00:00
Stanislav Shwartsman
b891789c3d implemented (experimental) TSC Adjust MSR 2020-05-21 19:58:16 +00:00
Stanislav Shwartsman
6b691257dd fixed compilation with VMX off 2020-01-17 11:55:59 +00:00
Stanislav Shwartsman
a24b562e32 now when bios knows to set msr ia32_feature_ctrl, no need to initialize from reset code 2020-01-15 17:18:10 +00:00
Stanislav Shwartsman
5620a4968b set msr IA32_FEATURE_CTRL lock bit to ensure VMX is enabled - normally this should be done in Bios but init.cc can w/a 2020-01-11 07:04:44 +00:00
Stanislav Shwartsman
bac9104f73 fixed compilation of init.cc for old CPU models 2020-01-03 05:29:45 +00:00
Stanislav Shwartsman
f90e5f4f44 Add initial implementation of the CET (Control Flow Enforcement Technology) emulation according to SDM071 
Only missing items (to be added soon):
  - Supervisor Shadow Stack EPT Control is not implemented yet
  - SMM placing for SSP
Currently have to be added manually to some CPUID model, for example to ICL-U
To enable configure with --enable-cet
 2019-12-20 07:42:07 +00:00
Stanislav Shwartsman
4b66fecaad split Bochs CPU TLB to DTLB and ITLB to avoid aliasing conflicts between them. ~5% speedup measured 2019-12-09 18:37:02 +00:00
Stanislav Shwartsman
0c75e0beaf extract xcr0_support bits calculation to a function 2019-12-06 09:23:28 +00:00
Stanislav Shwartsman
c098ab7de1 take msr.ia32_spec_ctrl out of @ifdef CPU_LEVEL=6 2019-10-26 20:17:41 +00:00
Stanislav Shwartsman
d766cc8112 implemented SCA (Side-Channel-Attack) Prevention reporting and corresponding MSR registers, enabled for Icelake-U CPU definition 2019-10-26 20:09:30 +00:00
Stanislav Shwartsman
9bc7faf493 dump all supported CPU fetures into Bochs log from CPUID object 2019-01-05 20:17:39 +00:00
Stanislav Shwartsman
a51eb1cc39 added more debug info for TLB through param tree, update year in the (c) 2017-03-31 07:34:08 +00:00
Stanislav Shwartsman
172b0106ac imvent a bochs feature for AMD TCE and enable EFER.TCE bit 2017-03-15 22:52:08 +00:00
Stanislav Shwartsman
3a033fa6db implemented xsaves/xrstors extensions (supported by Intel Skylake core and AMD Ryzen) 2017-03-15 21:44:15 +00:00
Stanislav Shwartsman
bd24d7fb17 fixed reset value of xcr0 as published in latest Intel SDM update 2016-10-08 15:17:12 +00:00
Stanislav Shwartsman
46e932d04e fixed INIT cpu state according to clarification published in SDM rev059 2016-07-17 19:16:58 +00:00
Stanislav Shwartsman
e4832af5ab clean pkeys when not enabled to avoid side-effects 2016-03-19 21:15:56 +00:00
Stanislav Shwartsman
bcb36e81fa experimental implementation of protection keys paging extension published in SDM rev054. to enable configure with --enable-protection-keys 2016-03-02 20:44:42 +00:00
Stanislav Shwartsman
591039e588 removed debug print 2016-02-21 20:14:15 +00:00
Stanislav Shwartsman
9557cafcef revertng commit #12854 because it broke MT simulation with debugger enabled. Until investigted. 2015-12-20 22:44:54 +00:00
Stanislav Shwartsman
ad52e15860 added few tlb specific cpustat counters 2015-09-28 19:09:32 +00:00
Stanislav Shwartsman
3a0dff9b36 fixed Bochs compiled for 386 with FPU enabled 2015-06-10 20:36:46 +00:00
Stanislav Shwartsman
c43ea147bf ~1% emulation speedup by skipping pageWriteStamp check for stack writes. 
For now the optimization is supported only when no SMP is compiled in because it doesn't handle cross-modifying code.

The current stack page will cache also current pageWriteStamp for that page and could skip pageWriteStamp access if possible.
Any code fetch access missing trace cache will invalidate current stack page.
Code fetch accesses from another SMP threads should do the same to support SMP.

Next step:
 - support SMP
 - support pageWriteStamp access skipping for all other memory writes from all segments
 2015-05-23 19:34:59 +00:00
Stanislav Shwartsman
080ceb8293 don't crash when running on 386 with no FPU model 2015-03-27 21:39:24 +00:00
Stanislav Shwartsman
b74036d2d8 another try to fix the weird compilation error 2015-02-26 20:34:24 +00:00
Stanislav Shwartsman
4e859202a1 attemp to fix compilation issue 2015-02-25 19:43:47 +00:00
Stanislav Shwartsman
1e1c893041 introduce new 64bit packed register type and implement pat/mtrr and mmx registers through it 2015-02-23 21:17:33 +00:00
Stanislav Shwartsman
0917d12e8b memory type report for physical accesses and RMW acccesses. todo: consider also pat 2015-02-22 21:26:26 +00:00
Stanislav Shwartsman
e16c6eb30c preparations and interface definition for memory type support 2015-02-19 20:23:08 +00:00
Stanislav Shwartsman
b5a603c8c7 fixed %d->%u format found by cppcheck (patch by Maxim Derbasov) 2015-01-25 21:24:13 +00:00
Stanislav Shwartsman
5e6955c5e7 Major rewrite of memory access methods to avoid massive code duplication and enable inlining of memory access methods 2015-01-25 20:55:10 +00:00
Stanislav Shwartsman
6e254743c1 Added missing sanity check. 
The sanity check would help to detect real Bochs crash issue under Win x64 with MSDEV
configure script under Mingw env decided that SIZEOF_INT_P == 4 which is terribly wrong for 64-bit host.
 2014-11-04 19:00:20 +00:00
Stanislav Shwartsman
1c027b17d7 some lazy flags handling optimizations 2014-10-22 17:49:12 +00:00
Stanislav Shwartsman
8d1e3b2ac1 Added statistics collection infrastructure in Bochs and 
implemented important CPU statistics which were used for Bochs CPU model performance analysis.
old statistics code from paging.cc and cpu.cc is replaced with new infrastructure.

In order to enale statitics collection in Bochs CPU:

- Enable statistics @ compilation time in cpu/cpustats.h
- Dump statistics periodically by adding -dumpstats N into Bochs command line
 2014-10-14 15:59:10 +00:00
Stanislav Shwartsman
29efae3be3 adjust (c) in several files 2014-08-31 20:05:25 +00:00
Stanislav Shwartsman
9f57e70d5f Rewritten handling of supported CPUID features to be able to handle large amount of CPU extensions 
Now enable support for up to 128 CPU extensions and could easily extend it more
Also reduce memory footprint for bx_ia_opcodes.h arrays
 2014-08-31 18:39:18 +00:00
Stanislav Shwartsman
bc5af269b7 Fix some more code duplication with sclaar_arith.h 
Do not clear IA32_FEATURE_CTRL MSR on soft reset (will clear the VMX lock bit)
On real HW XSAVE/XRSTOR which is not 4-byte aligned cause #AC(0) intead of #GP(0) when alignment check is enabled
 2014-03-02 16:40:13 +00:00
Stanislav Shwartsman
ca2793ac76 Debugger: fixed param tree access to 64-bit variables (need to use get64() instead of get()) 
Debugger: if AVX-512 if not supported by current configuration do not print high256 of vector registers and zmm15..zmm31 in AVX command
Implement VBROADCASTF64x4, VBROADCASTF32x4, VBROADCASTFI64x4, VBROADCASTI32x4 AVX-512 instructions
Fetchdecode optimizations and bugfixes
 2013-12-05 19:17:16 +00:00
Stanislav Shwartsman
37d6403681 typo fix 2 2013-11-30 19:57:03 +00:00
Stanislav Shwartsman
32c91015a7 typo fix 2013-11-30 19:55:10 +00:00
Stanislav Shwartsman
09254eb474 avx512 implementation fixes and next steps 2013-10-08 18:31:18 +00:00
Stanislav Shwartsman
8881800b1f enable avx-512 in init.cc 2013-09-08 19:35:37 +00:00
Stanislav Shwartsman
59c65151f5 various fixes 2013-08-29 19:43:15 +00:00
Stanislav Shwartsman
5d61c19b0b evex support - step2 2013-08-27 20:47:24 +00:00
Stanislav Shwartsman
2dbe81db51 first infrastructure changes to support EVEX prefix and AVX-512 extensions recently published by Intel 2013-07-26 12:50:56 +00:00
Stanislav Shwartsman
fd71b03353 add some definitions introduced in recent Intel SDM extensions document (rev015) 2013-07-23 20:51:52 +00:00