changelog

思科路由器仿真器,用来仿7200系列得,可以在电脑上模拟路由器

15-Oct-2006
-----------
  - Added a timer module.
  - NM-16ESW: added an ARL ager that removes expired MAC addresses.

18-Oct-2006
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  - Added hypervisor commands to tune idle-pc parameters
    ("vm set_idle_max" and "vm set_idle_sleep_time").
  - Centralized NM/PA EEPROM to have common definitions for platforms
    with the same type of network interfaces.
  - 0.2.6-RC2 release.

19-Oct-2006
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  - C2691: added sketelon code.
  - C2691: working DUART.
  - C2691: added mainboard EEPROM.

20-Oct-2006
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  - Bugfix: dec21140 and amd79c97x were incorrectly discarding frames based
    on the source address, preventing HSRP/VRRP to work (BTS entry #75).
  - C2691: added hypervisor module to handle instances.

22-Oct-2006
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  - C2691: trying to understand the network interrupt mechanism.

23-Oct-2006
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  - C2691: fixed Galileo interrupt (IRQ 3), allowing packets to be received!
  - Added a basic GT96100 system controller (for C2691).
  - GT96100: added MII registers.
  - Added a basic Flash device to be used as ROM+NVRAM for C2691.
  - C2691: NVRAM (simulated from flash) is now ok.
  - C2691: Analyzed environmental monitor register. No warning anymore.

24-Oct-2006
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  - C2691: NVRAM config export is working, config import requires more work
    (since write operations to flash are not immediate).
  - Allowed Galileo DMA IRQ to preempt the idle loop.
  - Fixed ATA Flash "current of sectors per card" which must be in LSW/MSW
    order and not MSW/LSW.
  - Added another ATA Flash access method (for c2691).
  - C2691: added support for CompactFlash.

25-Oct-2006
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  - GT96100: added some definitions for the Ethernet part.

26-Oct-2006
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  - Working on TX part for GT96100. Unfortunately, don't know yet how to
    signal an interrupt for it on the 2691 platform :(

27-Oct-2006
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  - C2691: found how to announce correctly NM presence in slot 1.
  - GT96100: finally found how to notify appropriately the network interrupt:
    the Serial Cause Register has to be handled.
  - C2691: added the glue code to set up GT96100 ethernet ports.
  - GT96100: added RX part. Packets are now sucessfully handled.
  - C2691: better understanding of network interrupt status registers.
  - C2691: added correct flash code detection.
  - GT96100: fixed the "PHY reset" problem.
  - C2691: added default correct chassis base MAC address.

28-Oct-2006
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  - GT96100: added hash function (Mode 0 ok, Mode 1 to fix) for Ethernet
    address filtering + appropriate definitions.

29-Oct-2006
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  - GT96100: fixed hash mode 1 (not tested).
  - GT96100: added address filtering process.

30-Oct-2006
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  - GT96100: added minimal MIB counters.
  - Implemented LBA mode for PCMCIA ATA disk devices and fixed data access.
  - Changed the default idle sleep time from 50ms to 30ms to avoid timer 
    IRQ loss and timer drift.
  - Added hypervisor command "vm show_timer_drift <vm_instance> <cpu_id>"
    to display potential problem with a given idle-pc value.
  - C2691: added proper support for IO memory.
  - NM-16ESW: generalized code to support multiple platforms.
  - C2691: added support for NM-16ESW.

31-Oct-2006
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  - C3725: initial support. Hardware very similar to c2691: Cisco rocks!
  - C3745: added skeleton.
  - C3745: fixed GT96100 address.
  - C3745: added PCI bridges.
  - C3745: Network Modules are working!
  - C3745: CompactFlash working.

01-Nov-2006
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  - C3745: finally understood how to handle the system EEPROMs.
  - Updated documentation (README).
  - GT96100: minor enhancement of interrupt handling.

02-Nov-2006
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  - Added support for "ghost" RAM: instances use a RAM file (previously
    created) and use copy-on-write on it. It allows to share common memory 
    between instances and so less memory is used.

03-Nov-2006
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  - Better support for ghost RAM, added hypervisor commands 
    "vm set_ghost_status" and "vm set_ghost_file".

04-Nov-2006
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  - NM-16ESW: fixed incorrect BPDU handling (which caused to add a 2nd
    802.1Q tag to BPDU packets) and now 0100.0ccc.cccd is recognized as
    a BPDU MAC address (BTS entry #).
  - DEC21140: fixed CSR8 handling (missed frame counter), which returned
    an undefined value (BTS entry #81).
  - Merged a patch from Rostislav Opocensky who added support for C3600
    in nvram_export utility.
  - Re-enaebled debugging info for NM-16ESW on 2691/3600/37xx.

05-Nov-2006
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  - NM-16ESW: fixed a crash due to incomplete device removal.

06-Nov-2006
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  - Validated use of Serial interfaces with 2691/3725/3745.
  - Correct config register handling for 3600/2691/3725/3745 platforms
    (config register setting was ignored).
  - Added detection of empty NVRAM for 2691/3725/3745 to set the ignore config
    flag in the config register (to boot faster).
  - C3745: Fixed NVRAM properties.
  - C7200/C3600: rewrite of configuration push into NVRAM (can now be done 
    offline).
  - C2691/C3725/C3745: added support for config push into ROM flash
    (simulated NVRAM).

07-Nov-2006
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  - Modified config export from NVRAM for all platforms (can now be done
    offline).
  - Better handling of base MAC address (2691/3725/3745 + NM-16ESW).

08-Nov-2006
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  - Rework of the MTS subsystem (generalization of MTS64 algorithms to MTS32
    which was broken).
  - Fast memory operations for 32-bit mode.

09-Nov-2006
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  - Rewrite of the MIPS TLB lookup operation.

10-Nov-2006
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  - Fixed another bug in TLB lookup.
  - Beginning of work for PA-MC-8TE1 support.
  - Added hypervisor commands to send messages to instances VTTY.
  - Working on PLX PCI9054 for PA-MC-8TE1.

11-Nov-2006
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  - Continuing a bit on PA-MC-8TE1.
	
14-Nov-2006
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  - Correct handling of VPN2 mask for TLB lookup.
  - bugfix: support of c3745 was missing in the hypervisor.
  - Merged a patch from Akim Dreyer for Debian support.
  - 0.2.6-RC3 release.
	
15-Nov-2006
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  - C2691/C3725: fixed a crash occuring on some IOS images due to incorrect
    platform type.
  - Modified performance counter to have stats for instructions or blocks
    (cannot be used simultaneously).
  - "beq" jump code (x86) was incorrectly using non-local jump.
  - Bugfix: incorrect number of arguments for hypervisor commands related
    to ghost file handling.
  - 0.2.6-RC4 release.

17-Nov-2006
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  - Major code cleanup to make devices independent from the virtual processors.
  - Generic CPU stuff.

20-Nov-2006
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  - Merged of patch from Thomas Pani to list VM TCP console ports (required 
    for gDynagen).
  - NM-16ESW: fixed (again) BPDU handling (incorrect VLAN tagging with non
    trunk ports).
  - Very minimal PowerPC definitions. Only non-JIT mode at this time.
  - PPC: added "crorc", "cror", "crnor", "crnand", "crandc", "crand".
  - PPC: added "and", "andc", "andi", "andis", "creqv", "crxor".
  - PPC: added "eqv", "isync", "mfmsr", "mtmsr", "nand", "nor", "or", "orc".
  - PPC: added "ori", "oris", "sync", "xor", "xori", "xoris", "mfcr".
  - PPC: added "addi", "addis".

21-Nov-2006
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  - PPC: added "cmp", "cmpl", "cmpi", "cmpli", "extsb", "extsh".
  - PPC: added "add", "add.", "and.", "andc.", "extsb.", "extsh.".
  - PPC: added a dummy memory access function (does nothing yet).
  - PPC: added "lbz", "lbzu", "lbzux", "lbzx".
  - PPC: added "lhz", "lhzu", "lhzux", "lhzx".
  - PPC: added "lwz", "lwzu", "lwzux", "lwzx".
  - PPC: added "stb", "stbu", "stbux", "stbx".
  - PPC: added "sth", "sthu", "sthux", "sthx".
  - PPC: added "stw", "stwu", "stwux", "stwx".
  - PPC: added "xor.", "b", "ba", "bl", "bla".
  - bugfix: hypervisor commands specific to CPU crashed if the VM was not
    started (noticed by Greg).

22-Nov-2006
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  - PPC: added "addo", "addo.", "addc", "addc.", "addco", "addco."
  - PPC: added "addic", "addic.", "adde", "adde.", "addeo", "addeo."
  - PPC: added "neg", "neg.", "nego", "nego.", "nand.", "nor.", "or.", "orc."
  - PPC: added "slw", "slw.", "srw", "srw."

23-Nov-2006
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  - PPC: added "rlwimi", "rlwimi.", "rlwinm", "rlwinm.", "rlwnm", "rlwnm."

24-Nov-2006
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  - PPC: added "mulhw", "mulhw.", "mulhwu", "mulhwu.", "mulli".
  - PPC: added "mullw", "mullw.", "mullwo", "mullwo."
  - PPC: added "subf", "subf.", "subfo", "subfo."
  - PPC: added "bc", "bca", "bcl", "bcla", "bclr", "bclrl".
  - PPC: added minimal memory operation glue code.
	
25-Nov-2006
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  - PPC: added dump functions for MMU registers.
  - PPC: added support for BAT registers.
	
26-Nov-2006
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  - PPC: fixed branch offset computation.
  - PPC: added a dummy virtual machines for tests.
  - PPC: fixed bclrx opcodes.
  - PPC: added "mflr", "mtlr".

27-Nov-2006
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  - PPC: fixes in comparison functions.
  - PPC: added "subfc", "subfc.", "subfco", "subfco."

28-Nov-2006
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  - PPC: added "subfic", "mfctr".
  - PPC: fixed a lot of bugs.

29-Nov-2006
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  - PPC: added "rfi", "lha", "lhau", "lhaux", "lhax", "addze", "addme".
  - PPC: fixed "mtcrf".
	
30-Nov-2006
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  - Added IRQ routing vectors for virtual machines.

01-Dec-2006
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  - Playing with NPE-G2, just for fun.
	
02-Dec-2006
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  - NPE-G2: environmental monitor is now working!
	
03-Dec-2006
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  - PPC: added an empty MV64460 controller (need the datasheet).
  - PPC: added "lmw" instruction, fixed "stmw".
  - PPC: added "cntlzw".

05-Dec-2006
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  - NPE-G2: analyzed midplane data: this is similar to other NPE.
  - Added a basic PLX6520CB PCI bridge.
  - NPE-G2: added appropriate PCI bridges and PCI busses for Port Adapters.

06-Dec-2006
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  - NPE-G2: added PCI I/O space.
  - NPE-G2: added CLPD6729, it is now possible to use PCMCIA ATA disks.

08-Dec-2006
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  - MV64460: added ugly experimental SDMA support to have a console for the
    NPE-G2 (using the GT96100A datasheet). This code must be rewritten.
  - MV64460/NPE-G2: playing with the various IRQs.
	
09-Dec-2006
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  - PPC: added idle-pc support.

10-Dec-2006
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  - PPC: added virtual breakpoint support.

15-Dec-2006
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  - PPC: added functions to manually set up page tables.
  - MV64460: added more interrupt definitions (with help of GT96100A manual).

19-Dec-2006
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  - MV64460: fixed interrupt loss problem.
	
20-Dec-2006
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  - Basic port of the microcode for the PowerPC platforms. IOS now starts
    normally (like the MIPS64 platforms).

21-Dec-2006
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  - NPE-G2: found OIR IRQ.
  - MV64460: added more definitions (for SDMA).
  - Cleanup of MIPS64 JIT code (better naming).

22-Dec-2006
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  - PPC32: added the minimal JIT core infrastructure.
  - PPC32-JIT: added unknown opcode handling.
  - PPC32-JIT: added some instructions.

23-24-Dec-2006
--------------
  - PPC32-JIT: added more instructions.
	
26-Dec-2006
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  - PPC32-JIT: continuing...
	
27-Dec-2006
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  - PPC32-JIT: added fast memory operations.

28-Dec-2006
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  - Added PPC32 nojit support.
  - PPC32: better checking for IRQs.

29-Dec-2006
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  - PPC32-JIT: added "amd64" support.
  - PPC32: added "lwbrx" and "stwbrx" instructions.

30-Dec-2006
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  - PPC32: added "tw"/"twi" instructions.
  - PPC32: added TLB support for PowerPC 405.
  - PPC32: added "tlbre", "tlbwe", "iccci", "dccci", "mfdcr", "mtdcr" for
    PowerPC 405.
  - Fixed a bug with ILT tables (incorrect count - last entry was missing).
	
31-Dec-2006
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  - PPC32: added "dcbst" instruction.

05-Jan-2007
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  - NPE-G2: correct handling of DUART interrupt with I/O card.

07-Jan-2007
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  - NPE-G2: correct console selection (NPE or I/O board) depending on slot 0.
  - PPC32: fixup for decrementer interrupt.
  - Generic CPU MTS rebuild (mips64/ppc32).
  - Split of memory.c / mips64_mem.c. memory.c will only contain generic 
    functions independent of the CPU model.
  - Memlogger is now independent of CPU type (untested).

08-Jan-2007
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  - Rewrite of the MTS subsystem to have less overhead with inlined 
    operations -> better performance.
	
09-Jan-2007
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  -