The page table now stores actual page table entries. It is still a templated
class here, but this will be corrected in the near future.
--HG--
extra : convert_revision : 804dcc6320414c2b3ab76a74a15295bd24e1d13d
It should be cleared prior to the call to recvRetry.
Add extra DPRINTF statement for clearer debugging output.
--HG--
extra : convert_revision : e2332754743f42d60e159ac89f6fb0fd8b7f57f8
In O3, a nop is used to carry faults down the pipeline that didn't originate
from an instruction. If the instruction doesn't do anything, that is just
returns NoFault, but doesn't have IsNop set, the NoFault will overwrite the
fault that's being sent down and nothing will happen.
--HG--
extra : convert_revision : 54d99002b550ca0e1cf14603f588dc1038e3e535
Each "strand" may need to have a private copy of this state, but I couldn't
find anywhere in the spec that said that after looking briefly.
This prevents writes to the thread context in o3 which was causing the
pipeline to be flushed and stopping any forward progress. The other ASI
accessible state will probably need to be accessed differently if/when we get
O3 full system up and running.
--HG--
extra : convert_revision : fa7fba812d7f76564ef4a23818e60f536710d557
import sys since sys may not be defined in whatever context the DictImporter
is used. Also reset self.installed after an unload since the same DictImporter
could be used again
--HG--
extra : convert_revision : 988ed7ad8cd41b69e8fc583e618b1b4a146216da
Fixed the asz assembler symbol.
Adjusted the condion checks to have appropriate options.
Implemented the SCAS microcode.
Attached SCAS into the decoder.
--HG--
extra : convert_revision : 17bf9ddae6bc2069e43b076f8f83c4e54fb7966c
There is a fundemental flaw in how unaligned accesses are supported, but this
is still an improvement.
--HG--
extra : convert_revision : 1c20b524ac24cd4a812c876b067495ee6a7ae29f
The only cases where this was the correct behavior are now handled with the
"B" operand type, and doing things this way was breaking some instructions,
notably a shift.
--HG--
extra : convert_revision : 072346d4f541edaceba7aecc26ba8d2cd756e481
Make instructions observe segment prefixes, default segment rules, segment
base addresses.
Also fix some microcode and add sib and riprel "keywords" to the x86
specialization of the microassembler.
--HG--
extra : convert_revision : be5a3b33d33f243ed6e1ad63faea8495e46d0ac9
This lets you index into a group of registers without having to know
explicitly which one is the lowest in that group.
--HG--
extra : convert_revision : e3cad25a1c5910955204c37177b049ca9834cfd9
The arch_prctl system call is used to set and get the FS and GS segment
bases. The FS segment is use for TLS, so glibc needs to be able to set it
up.
--HG--
extra : convert_revision : 79501491a15967a7a862add846ff88a934fb1b37
This allows us to change memory modes as well.
Clean up the code while we're at it.
--HG--
extra : convert_revision : fc5fee9ffd08b791f0607ee2688f32aa65d15354
This requires us to not use PyRun_SimpleString, but PyRun_String since the
latter actually returns a result
--HG--
extra : convert_revision : 3e3916ddd7eef9957569d8e72e73ba4c3160ce20
Add support for declaring SimObjects to swig so their members can be wrapped.
Make sim_object.i only contain declarations for SimObject.
Create system.i to contain declarations for System.
Update python code to properly call the C++ given the new changes.
--HG--
extra : convert_revision : 82076ee69e8122d56e91b92d6767e356baae420a
After very carefully reading through the Linux source, I'm pretty confident I now know -exactly- how the initial stack frame is constructed, filled, and aligned.
--HG--
extra : convert_revision : 3c654ade7e458bdd5445026860f11175f383a65f
As it is now, some objects will get the incorrect value depending where they
were defined.
--HG--
extra : convert_revision : a11a14842f9524739cbf54a48be6ec051f371200
Move the argument files to src/sim and add a utility.cc file with a function
getArguments() that returns the given argument in the architecture specific fashion.
getArguments() was getArg() is the architecture specific Argument class and has had
all magic numbers replaced with meaningful constants. Also add a function to the
Argument class for testing if an argument is NULL.
--HG--
rename : src/arch/alpha/arguments.cc => src/sim/arguments.cc
rename : src/arch/alpha/arguments.hh => src/sim/arguments.hh
extra : convert_revision : 8b93667bafaa03b52aadb64d669adfe835266b8e
Loops of header files including each other was causing compilation to fail. To fix it, a bunch of unnecessary includes were removed, and the code in isa_traits.cc which brought a bunch of include chains together was broken up and put in proximity to the header files that delcared it.
--HG--
extra : convert_revision : 66ef7762024b72bb91147a5589a0779e279521e0
Ignore different values or rcx and r11 after a syscall until either the local or remote value changes. Also change the codes organization somewhat.
--HG--
extra : convert_revision : 2c1f69d4e55b443e68bfc7b43e8387b02cf0b6b5
R11 is just junk after the start of exectuion because we're "returning" from
an execve call and linux destroys the contents of rcx and r11 on system calls.
--HG--
extra : convert_revision : 6bf69a50ce56e0355dfdd41524163874340beec0
These are the only floating point instructions that get used in my simple hello world test. These instructions are for setting up the floating point control register. Their not being implemented doesn't affect anything because floating point isn't used.
--HG--
extra : convert_revision : 4dfb9ef2a5665f034946c504978029e8799e64cd
Make sure not to keep processing functional accesses
after they've been responded to.
Also use checkFunctional() return value instead of checking
packet command field where possible, mostly just for consistency.
--HG--
extra : convert_revision : 29fc76bc18731bd93a4ed05a281297827028ef75
The instructions now ask for the appropriate flags to be set, and the microops do the "right thing" with the CF and OF flags, namely zero them.
--HG--
extra : convert_revision : 85138a832f44c879bf8a11bd3a35b58be6272ef3
People should never put pointers in DPRINTFs; it messes up
tracediffs. Plus these used the FullCPU trace flag, which
is not right.
--HG--
extra : convert_revision : 82ed56757da0ad947c165ba205b5f752c85c6667
The initial stack frame for x86 is now substantially more correct. The fixes made here can be back ported to SPARC and possible the other ISAs as well. The auxiliary vector types were moved to the LiveProcess base class because they are independent of ISA. Some of the types may only apply to Linux, though, so they may have to be moved.
--HG--
extra : convert_revision : 89ace35fcc8eb9586d2fee8eeccbc3686499ef24
The correct order is unintuitively rax, rcx, rdx, rbx, etc, not rax, rbx, rcx, rdx.
--HG--
extra : convert_revision : 3abe6a723a6e30becfe34f8da707ea2ff5d4df77
POPA used st instead of ld, and it didn't skip rsp. push rsp needs to store the -original- value of the stack pointer.
--HG--
extra : convert_revision : 376370c99b6ab60fb2bc4cd4f0a6dce71153ad06
Merge was returning the value to merge in, not the actual result of the merge.
--HG--
extra : convert_revision : 230b4b5064037d099ae7859edabdf5be84603849
The stack base on my development machine starts one page below where it needs to. I don't know why it does, but I've duplicated it in m5.
--HG--
extra : convert_revision : c4783ba885b90f17e843f61e07af0bc3330a74bc
The type constants should go into an architecture independent spot since they are universal to all Linux elf binaries. The right value for some of the vectors needs to be determined. Also, x86 does not store argc or argv_array_base in registers like some other architectures.
--HG--
extra : convert_revision : 8d3f6a3e028d881d3c41e8ddf4f29d25738b529c
Code was assuming that all argument registers followed in order from ArgumentReg0. There is now an ArgumentReg array which is indexed to find the right index. There is a constant, NumArgumentRegs, which can be used to protect against using an invalid ArgumentReg.
--HG--
extra : convert_revision : f448a3ca4d6adc3fc3323562870f70eec05a8a1f
These functions take care of calling the thread contexts read and write functions with the right sized data type, and handle unaligned accesses.
--HG--
extra : convert_revision : b4b59ab2b22559333035185946bae3eab316c879
The carry flag should be calculated using the -complement- of the second operand, not it's negation. The carry in which is part of computing the 2's complement may induce a carry, but if you've already caused the carry before you get the carry computing logic involved, it will miss it.
--HG--
extra : convert_revision : 318cf86929664fc52ed9e023606a9e892eba635c
