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a54f50e4f2
Bochs/bochs/cpu
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Stanislav Shwartsman eda28b95f4 unfortunately this change is rquired to make SMAP and SMEP features to work. 
I observed ~5% emulation slowdown ... thinking about possible mitigations

this fixes TLB issue with SMAP and SMEP features.
these features introduce a new behavior when page can be inaccessible by System (CPL=0).
Current behavior is accessBits was not supporting it but legacy (from Bochs 2.3.6) was.
The wrong behavior can be observed if user access a user page and system access the same page later.
user access is fine and pass SMEP/SMA checks and stores the translation in TLB.
the system access will hit the TLB and nobody could detect that system cannot access that page.
2013-01-16 17:28:20 +00:00
..
cpudb implemented pause threshold count in SVN + bugfix in SMAP 2013-01-08 21:03:22 +00:00
fpu fixed MSDEV warnings 2012-11-27 15:40:45 +00:00
3dnow.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
access32.cc unfortunately this change is rquired to make SMAP and SMEP features to work. 2013-01-16 17:28:20 +00:00
access64.cc unfortunately this change is rquired to make SMAP and SMEP features to work. 2013-01-16 17:28:20 +00:00
access.cc unfortunately this change is rquired to make SMAP and SMEP features to work. 2013-01-16 17:28:20 +00:00
aes.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
apic.cc Move INTR, Local APIC INTR and SVN VINTR into new event interface (hardest part) 2012-10-03 20:24:29 +00:00
apic.h preparations for apic regs virtualization feature described in SDM rev044 2012-09-06 15:21:08 +00:00
arith8.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
arith16.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
arith32.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
arith64.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
avx2.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
avx_fma.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
avx_pfp.cc changes in avx emulation code 2012-12-09 16:42:48 +00:00
avx.cc fixed small avx issues 2012-12-11 21:01:05 +00:00
bcd.cc reword all the CPU code in preparation for future CPU speedup implementation. 2011-07-06 20:01:18 +00:00
bit16.cc optimize POPCNT implementation 2012-09-21 14:56:56 +00:00
bit32.cc optimize POPCNT implementation 2012-09-21 14:56:56 +00:00
bit64.cc optimize POPCNT implementation 2012-09-21 14:56:56 +00:00
bit.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
bmi32.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
bmi64.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
call_far.cc 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
cpu.cc unfortunately this change is rquired to make SMAP and SMEP features to work. 2013-01-16 17:28:20 +00:00
cpu.h Intel Software Developers Manual rev45 was released 2013-01-16 16:57:48 +00:00
cpuid.h Intel Software Developers Manual rev45 was released 2013-01-16 16:57:48 +00:00
crc32.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
crregs.cc implemented SVM decode assists. some is still missing - coming soon 2012-11-02 07:46:50 +00:00
crregs.h flush tlb also when cr4.smap changes 2013-01-14 17:02:51 +00:00
ctrl_xfer16.cc transfer VMX NMI window exiting into event vector infrastructure 2012-09-25 10:21:29 +00:00
ctrl_xfer32.cc transfer VMX NMI window exiting into event vector infrastructure 2012-09-25 10:21:29 +00:00
ctrl_xfer64.cc transfer VMX NMI window exiting into event vector infrastructure 2012-09-25 10:21:29 +00:00
ctrl_xfer_pro.cc - Do not compile support for alignment check (#AC exception) by default 2012-03-25 19:07:17 +00:00
data_xfer8.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
data_xfer16.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
data_xfer32.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
data_xfer64.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
debugstuff.cc fixed SF bug #1318 dbg: several issues with 'set' command 2012-11-06 20:01:02 +00:00
descriptor.h fixed 64-bit segment print from internal debugger 2012-06-14 18:56:47 +00:00
event.cc Implemented VMX APIC Registers Virtualization and VMX Virtual Interrupt Delivery emulation 2012-10-26 18:43:53 +00:00
exception.cc Intel Software Developers Manual rev45 was released 2013-01-16 16:57:48 +00:00
fetchdecode64.cc fixed decoding of RDRAND/RDSEED with 0x66 prefix 2012-12-27 19:31:21 +00:00
fetchdecode_avx.h fixed small avx issues 2012-12-11 21:01:05 +00:00
fetchdecode_sse.h fixed decoding of RDRAND/RDSEED with 0x66 prefix 2012-12-27 19:31:21 +00:00
fetchdecode_x87.h expand FCMOV function to 8 different functions - each one is much simpler to implement and understand 2012-02-01 12:07:53 +00:00
fetchdecode_xop.h Major commit ! 2012-02-13 23:29:01 +00:00
fetchdecode.cc fixed decoding of RDRAND/RDSEED with 0x66 prefix 2012-12-27 19:31:21 +00:00
fetchdecode.h fixed decoding of RDRAND/RDSEED with 0x66 prefix 2012-12-27 19:31:21 +00:00
flag_ctrl_pro.cc Move INTR, Local APIC INTR and SVN VINTR into new event interface (hardest part) 2012-10-03 20:24:29 +00:00
flag_ctrl.cc Move INTR, Local APIC INTR and SVN VINTR into new event interface (hardest part) 2012-10-03 20:24:29 +00:00
fpu_emu.cc reword all the CPU code in preparation for future CPU speedup implementation. 2011-07-06 20:01:18 +00:00
gather.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
generic_cpuid.cc move misaligned_sse from compile time to .bochsrc option 2012-12-20 19:43:11 +00:00
generic_cpuid.h remove unused leafs from generic_cpuid 2012-05-11 06:51:04 +00:00
i387.h Adding Id and Rev property to all files 2011-02-24 21:54:04 +00:00
ia_opcodes.h implemented pause threshold count in SVN + bugfix in SMAP 2013-01-08 21:03:22 +00:00
icache.cc rename i->execute field in the instruction 2012-09-04 15:45:05 +00:00
icache.h close another SMC hole 2012-10-01 18:19:09 +00:00
init.cc initialize random generator for RDRAND/RDSEED 2012-10-09 20:53:50 +00:00
instr.h fixed MSDEV warnings 2012-11-27 15:40:45 +00:00
io.cc updated + fixed instrumentation example for instr histogram, code cleanup in the cpu 2012-03-28 21:11:19 +00:00
iret.cc 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
jmp_far.cc - Implemented Task Switch intercept in SVM, cleanup in task switch handling code 2012-01-11 20:21:29 +00:00
lazy_flags.h small optimization in lazy flags code 2012-09-06 19:49:14 +00:00
load.cc move misaligned_sse from compile time to .bochsrc option 2012-12-20 19:43:11 +00:00
logical8.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
logical16.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
logical32.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
logical64.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
Makefile.in Add RDRAND/RDSEED instructions support (+ disasm) 2012-10-09 15:16:48 +00:00
mmx.cc set of small cpu fixes 2012-08-09 13:11:25 +00:00
msr.cc fixed code duplication, mainly in vmx/svm code 2012-12-26 21:59:16 +00:00
mult8.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
mult16.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
mult32.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
mult64.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
paging.cc unfortunately this change is rquired to make SMAP and SMEP features to work. 2013-01-16 17:28:20 +00:00
proc_ctrl.cc implemented pause threshold count in SVN + bugfix in SMAP 2013-01-08 21:03:22 +00:00
protect_ctrl.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
rdrand.cc Add RDRAND/RDSEED instructions support (+ disasm) 2012-10-09 15:16:48 +00:00
resolver.cc Adding Id and Rev property to all files 2011-02-24 21:54:04 +00:00
ret_far.cc 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
segment_ctrl_pro.cc - Do not compile support for alignment check (#AC exception) by default 2012-03-25 19:07:17 +00:00
segment_ctrl.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
shift8.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
shift16.cc fixed comments for SHLD/SHRD instructrions and make code a little more clear 2012-09-09 17:44:42 +00:00
shift32.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
shift64.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
simd_compare.h Major commit ! 2012-02-13 23:29:01 +00:00
simd_int.h fixed MSDEV warnings 2012-11-27 15:40:45 +00:00
simd_pfp.h added FMA4 AMD instructions support, fixed mem access length for Intel scalar FMA instructions 2011-10-07 14:09:35 +00:00
smm.cc implemented SVM decode assists. some is still missing - coming soon 2012-11-02 07:46:50 +00:00
smm.h Fixed SF bug [3548109] VMX State Not Restored After Entering SMM on 32-bit Systems 2012-07-27 08:13:39 +00:00
soft_int.cc implemented SVM decode assists. some is still missing - coming soon 2012-11-02 07:46:50 +00:00
sse_move.cc changes in avx emulation code 2012-12-09 16:42:48 +00:00
sse_pfp.cc move misaligned_sse from compile time to .bochsrc option 2012-12-20 19:43:11 +00:00
sse_rcp.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
sse_string.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
sse.cc split PINSRB instruction to /r and /m form 2012-08-07 14:38:43 +00:00
stack16.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
stack32.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
stack64.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
stack.cc unfortunately this change is rquired to make SMAP and SMEP features to work. 2013-01-16 17:28:20 +00:00
stack.h 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
string.cc updated + fixed instrumentation example for instr histogram, code cleanup in the cpu 2012-03-28 21:11:19 +00:00
svm.cc implemented pause threshold count in SVN + bugfix in SMAP 2013-01-08 21:03:22 +00:00
svm.h implemented pause threshold count in SVN + bugfix in SMAP 2013-01-08 21:03:22 +00:00
tasking.cc fixed bug 3548108 VMEXIT instruction length Not always getting updated 2012-07-26 16:03:26 +00:00
tbm32.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
tbm64.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
todo move misaligned_sse from compile time to .bochsrc option 2012-12-20 19:43:11 +00:00
vapic.cc fixed compilation issue 2012-11-05 06:41:10 +00:00
vm8086.cc - Do not compile support for alignment check (#AC exception) by default 2012-03-25 19:07:17 +00:00
vmcs.cc Intel Software Developers Manual rev45 was released 2013-01-16 16:57:48 +00:00
vmexit.cc implemented pause threshold count in SVN + bugfix in SMAP 2013-01-08 21:03:22 +00:00
vmfunc.cc Fixed SF bug [3548109] VMX State Not Restored After Entering SMM on 32-bit Systems 2012-07-27 08:13:39 +00:00
vmx.cc Intel Software Developers Manual rev45 was released 2013-01-16 16:57:48 +00:00
vmx.h Intel Software Developers Manual rev45 was released 2013-01-16 16:57:48 +00:00
xmm.h Implemented AMDs Buldozer XOP and TBM extensions. 2011-10-19 20:54:04 +00:00
xop.cc Standartization of Bochs instruction handlers. 2012-08-05 13:52:40 +00:00
xsave.cc XSAVE: Fixed XCR0 reserved combination checking in XSETBV instruction 2012-12-23 16:54:18 +00:00