Stanislav Shwartsman
ceaffe85d3
move code from paging.cc to access.cc
...
intoduce a function to solve code duplication
2024-01-12 21:08:14 +02:00
Stanislav Shwartsman
0730ff4c4a
added a comment for future: some memory operations must be done atomically
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these are include LOCKed RMW of course and also a lot of others
in the future it will be very hard to find all the cases that must be atomic so better to start marking them already now
try to mark every RMW case for atomicity requirements
no code changes, only comments
2023-11-17 23:18:43 +02:00
Stanislav Shwartsman
975c11fe09
fix canonical address calculation broken with LASS merge
2023-10-30 07:08:44 +02:00
Stanislav Shwartsman
8316d7698f
implemented Linear Address Separation extension (LASS) ( #90 )
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Co-authored-by: Stanislav Shwartsman <sshwarts@users.sourceforge.net>
2023-10-15 14:32:01 +03:00
Stanislav Shwartsman
1e4f1624c8
remove trailing whitespace from source files
2022-08-23 21:46:04 +03:00
ughoavgfhw
b8f38eb8d3
Fix two bugs around monitor/mwait
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MONITOR relies on tickle_read_virtual to set the physical address, but it was
only doing so on TLB miss. So a MONITOR with a TLB hit would arm the most
recently accessed address instead of the requested one.
TLB invalidations disarmed the monitoring range, but didn't wake a CPU that
had already MWAIT-ed. Any instruction that invalidated TLB entries on other
CPUs could have caused an MWAIT-ing CPU to never wake.
2022-07-13 21:51:15 -05:00
Stanislav Shwartsman
1bf18b8aae
! CPUID: Added TigerLake CPU definition (features CET and CLWB support)
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- CPU code refactor, remove uses of bx_bool datatype and use C++ classic bool instead.
This enable better compiler optimizations and reduce binary size
2021-01-30 08:35:35 +00:00
Stanislav Shwartsman
f90e5f4f44
Add initial implementation of the CET (Control Flow Enforcement Technology) emulation according to SDM071
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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
eec720c62b
convert bochs.h macros to inline functions with strong types
2019-10-16 20:46:00 +00:00
Stanislav Shwartsman
fd15b61d94
keep def of YMM/ZMM register even if AVX or EVEX are not compiled in and let reading/writing them to MEM
2018-04-04 19:31:56 +00:00
Stanislav Shwartsman
a673612784
fixed permission checks performed by CLFLUSH/CLFLUSHOPT/MONITOR* instructions
2017-03-28 18:52:53 +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
c44cb6ed81
more cases applicable for BX_TLB_ENTRY_OF
2015-09-22 20:10:22 +00:00
Stanislav Shwartsman
be4b73c6d2
extracted tlb specific code to tlb.h; extracted xsave cpuid leaf function to base cpuid class
2015-09-21 13:16:17 +00:00
Stanislav Shwartsman
5edd53186e
optimize for target with no x86-64 support
2015-05-04 19:58:01 +00:00
Stanislav Shwartsman
e72f66ce49
added BX_CPP_AttrRegparmN to xmm/ymmz/zmm read methods matching cpu.h
2015-04-19 20:47:55 +00:00
Stanislav Shwartsman
2bad0d0d12
fixed link error with debugger enabled, small speed optimization
2015-02-23 19:55:55 +00:00
Stanislav Shwartsman
2448c0cf74
fixed complation err
2015-02-23 17:55:09 +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
7a3e340e6d
implement memory type calculation by mtrr. todo: memory type from page tables
2015-02-20 21:50:59 +00:00
Stanislav Shwartsman
e16c6eb30c
preparations and interface definition for memory type support
2015-02-19 20:23:08 +00:00
Stanislav Shwartsman
e80e911166
fixed compilation on cpu level < 6
2015-01-29 18:41:28 +00:00
Stanislav Shwartsman
ee3841ef07
fixed more compilation problems and code cleanup
2015-01-26 20:01:25 +00:00
Stanislav Shwartsman
74da7a7092
fixed compilation err
2015-01-26 15:34:52 +00:00
Stanislav Shwartsman
ea390d58dc
added new files, removed old files, remove obsolete assert
2015-01-25 20:58:04 +00:00
