changeset 207d6f2f1d53 in /z/repo/gem5
details: http://repo.gem5.org/gem5?cmd=changeset;node=207d6f2f1d53
description:
        stats: Update for UDelayEvent quiesce change

diffstat:

 tests/long/fs/10.linux-boot/ref/arm/linux/realview-o3-dual/config.ini          
           |    43 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview-o3-dual/simerr              
           |     2 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview-o3-dual/simout              
           |    16 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview-o3-dual/stats.txt           
           |    14 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview-o3-dual/system.terminal     
           |   Bin 
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-minor-dual/config.ini     
           |    41 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-minor-dual/simout         
           |    16 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-minor-dual/stats.txt      
           |  5162 ++++----
 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-minor-dual/system.terminal 
          |   Bin 
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-minor/config.ini          
           |    21 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-minor/simout              
           |    16 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-minor/stats.txt           
           |  2108 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-minor/system.terminal     
           |   Bin 
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-o3-checker/config.ini     
           |    23 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-o3-checker/simerr         
           |   174 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-o3-checker/simout         
           |    16 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-o3-checker/stats.txt      
           |  2792 ++--
 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-o3-checker/system.terminal 
          |   Bin 
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-o3-dual/config.ini        
           |    41 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-o3-dual/simerr            
           |     4 +
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-o3-dual/simout            
           |    16 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-o3-dual/stats.txt         
           |  6413 +++++----
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-o3-dual/system.terminal   
           |   Bin 
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-o3/config.ini             
           |    21 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-o3/simout                 
           |    16 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-o3/stats.txt              
           |  2692 ++--
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-o3/system.terminal        
           |   Bin 
 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-simple-atomic-checkpoint/config.ini
  |    21 +-
 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-simple-atomic-checkpoint/config.json
 |    42 +-
 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-simple-atomic-checkpoint/stats.txt
   |    20 +-
 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-simple-atomic-dual/config.ini
        |    41 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-simple-atomic-dual/simout 
           |    12 +-
 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-simple-atomic-dual/stats.txt
         |    30 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-simple-atomic/config.ini  
           |    21 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-simple-atomic/simout      
           |    14 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-simple-atomic/stats.txt   
           |    20 +-
 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-simple-timing-dual/config.ini
        |    41 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-simple-timing-dual/simout 
           |    16 +-
 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-simple-timing-dual/stats.txt
         |    18 +-
 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-simple-timing-dual/system.terminal
   |   Bin 
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-simple-timing/config.ini  
           |    21 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-simple-timing/simout      
           |    16 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-simple-timing/stats.txt   
           |    14 +-
 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-simple-timing/system.terminal
        |   Bin 
 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-switcheroo-atomic/config.ini
         |    23 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-switcheroo-atomic/simout  
           |     8 +-
 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-switcheroo-atomic/stats.txt
          |    30 +-
 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-switcheroo-full/config.ini 
          |    27 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-switcheroo-full/simerr    
           |  2280 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-switcheroo-full/simout    
           |     8 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-switcheroo-full/stats.txt 
           |  5175 ++++----
 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-switcheroo-full/system.terminal
      |   Bin 
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-switcheroo-o3/config.ini  
           |    23 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-switcheroo-o3/simerr      
           |    52 -
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-switcheroo-o3/simout      
           |     8 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-switcheroo-o3/stats.txt   
           |  4366 +++---
 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-switcheroo-o3/system.terminal
        |   Bin 
 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-switcheroo-timing/config.ini
         |    23 +-
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-switcheroo-timing/simerr  
           |    24 +
 tests/long/fs/10.linux-boot/ref/arm/linux/realview64-switcheroo-timing/simout  
           |     8 +-
 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-switcheroo-timing/stats.txt
          |    18 +-
 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-switcheroo-timing/system.terminal
    |   Bin 
 tests/quick/fs/10.linux-boot/ref/x86/linux/pc-simple-timing/config.ini         
           |    19 +-
 tests/quick/fs/10.linux-boot/ref/x86/linux/pc-simple-timing/simout             
           |    13 +-
 tests/quick/fs/10.linux-boot/ref/x86/linux/pc-simple-timing/stats.txt          
           |   144 +-
 65 files changed, 16333 insertions(+), 15910 deletions(-)

diffs (truncated from 37175 to 300 lines):

diff -r 9818190de72e -r 207d6f2f1d53 
tests/long/fs/10.linux-boot/ref/arm/linux/realview-o3-dual/config.ini
--- a/tests/long/fs/10.linux-boot/ref/arm/linux/realview-o3-dual/config.ini     
Sat Oct 10 16:45:38 2015 -0500
+++ b/tests/long/fs/10.linux-boot/ref/arm/linux/realview-o3-dual/config.ini     
Sat Oct 10 16:45:41 2015 -0500
@@ -12,11 +12,11 @@
 type=LinuxArmSystem
 children=bridge cf0 clk_domain cpu0 cpu1 cpu_clk_domain dvfs_handler intrctrl 
iobus iocache l2c membus physmem realview terminal toL2Bus vncserver 
voltage_domain
 atags_addr=134217728
-boot_loader=/scratch/nilay/GEM5/system/binaries/boot_emm.arm
+boot_loader=/home/joel/research/gem5/full_system_files/binaries/boot_emm.arm
 boot_osflags=earlyprintk=pl011,0x1c090000 console=ttyAMA0 lpj=19988480 
norandmaps rw loglevel=8 mem=256MB root=/dev/sda1
 cache_line_size=64
 clk_domain=system.clk_domain
-dtb_filename=/scratch/nilay/GEM5/system/binaries/vexpress.aarch32.ll_20131205.0-gem5.2cpu.dtb
+dtb_filename=/home/joel/research/gem5/full_system_files/binaries/vexpress.aarch32.ll_20131205.0-gem5.2cpu.dtb
 early_kernel_symbols=false
 enable_context_switch_stats_dump=false
 eventq_index=0
@@ -28,7 +28,7 @@
 have_virtualization=false
 highest_el_is_64=false
 init_param=0
-kernel=/scratch/nilay/GEM5/system/binaries/vmlinux.aarch32.ll_20131205.0-gem5
+kernel=/home/joel/research/gem5/full_system_files/binaries/vmlinux.aarch32.ll_20131205.0-gem5
 kernel_addr_check=true
 load_addr_mask=268435455
 load_offset=2147483648
@@ -38,11 +38,12 @@
 memories=system.physmem system.realview.nvmem system.realview.vram
 mmap_using_noreserve=false
 multi_proc=true
+multi_thread=false
 num_work_ids=16
 panic_on_oops=true
 panic_on_panic=true
 phys_addr_range_64=40
-readfile=/scratch/nilay/GEM5/gem5/tests/halt.sh
+readfile=/home/joel/research/gem5/gem5/tests/halt.sh
 reset_addr_64=0
 symbolfile=
 work_begin_ckpt_count=0
@@ -85,7 +86,7 @@
 [system.cf0.image.child]
 type=RawDiskImage
 eventq_index=0
-image_file=/scratch/nilay/GEM5/system/disks/linux-aarch32-ael.img
+image_file=/home/joel/research/gem5/full_system_files/disks/linux-aarch32-ael.img
 read_only=true
 
 [system.clk_domain]
@@ -582,6 +583,7 @@
 
 [system.cpu0.isa]
 type=ArmISA
+decoderFlavour=Generic
 eventq_index=0
 fpsid=1090793632
 id_aa64afr0_el1=0
@@ -713,12 +715,13 @@
 
 [system.cpu0.toL2Bus]
 type=CoherentXBar
+children=snoop_filter
 clk_domain=system.cpu_clk_domain
 eventq_index=0
 forward_latency=0
 frontend_latency=1
 response_latency=1
-snoop_filter=Null
+snoop_filter=system.cpu0.toL2Bus.snoop_filter
 snoop_response_latency=1
 system=system
 use_default_range=false
@@ -726,6 +729,13 @@
 master=system.cpu0.l2cache.cpu_side
 slave=system.cpu0.icache.mem_side system.cpu0.dcache.mem_side 
system.cpu0.itb.walker.port system.cpu0.dtb.walker.port
 
+[system.cpu0.toL2Bus.snoop_filter]
+type=SnoopFilter
+eventq_index=0
+lookup_latency=0
+max_capacity=8388608
+system=system
+
 [system.cpu0.tracer]
 type=ExeTracer
 eventq_index=0
@@ -1216,6 +1226,7 @@
 
 [system.cpu1.isa]
 type=ArmISA
+decoderFlavour=Generic
 eventq_index=0
 fpsid=1090793632
 id_aa64afr0_el1=0
@@ -1347,12 +1358,13 @@
 
 [system.cpu1.toL2Bus]
 type=CoherentXBar
+children=snoop_filter
 clk_domain=system.cpu_clk_domain
 eventq_index=0
 forward_latency=0
 frontend_latency=1
 response_latency=1
-snoop_filter=Null
+snoop_filter=system.cpu1.toL2Bus.snoop_filter
 snoop_response_latency=1
 system=system
 use_default_range=false
@@ -1360,6 +1372,13 @@
 master=system.cpu1.l2cache.cpu_side
 slave=system.cpu1.icache.mem_side system.cpu1.dcache.mem_side 
system.cpu1.itb.walker.port system.cpu1.dtb.walker.port
 
+[system.cpu1.toL2Bus.snoop_filter]
+type=SnoopFilter
+eventq_index=0
+lookup_latency=0
+max_capacity=8388608
+system=system
+
 [system.cpu1.tracer]
 type=ExeTracer
 eventq_index=0
@@ -2354,12 +2373,13 @@
 
 [system.toL2Bus]
 type=CoherentXBar
+children=snoop_filter
 clk_domain=system.cpu_clk_domain
 eventq_index=0
 forward_latency=0
 frontend_latency=1
 response_latency=1
-snoop_filter=Null
+snoop_filter=system.toL2Bus.snoop_filter
 snoop_response_latency=1
 system=system
 use_default_range=false
@@ -2367,6 +2387,13 @@
 master=system.l2c.cpu_side
 slave=system.cpu0.l2cache.mem_side system.cpu1.l2cache.mem_side
 
+[system.toL2Bus.snoop_filter]
+type=SnoopFilter
+eventq_index=0
+lookup_latency=0
+max_capacity=8388608
+system=system
+
 [system.vncserver]
 type=VncServer
 eventq_index=0
diff -r 9818190de72e -r 207d6f2f1d53 
tests/long/fs/10.linux-boot/ref/arm/linux/realview-o3-dual/simerr
--- a/tests/long/fs/10.linux-boot/ref/arm/linux/realview-o3-dual/simerr Sat Oct 
10 16:45:38 2015 -0500
+++ b/tests/long/fs/10.linux-boot/ref/arm/linux/realview-o3-dual/simerr Sat Oct 
10 16:45:41 2015 -0500
@@ -43,4 +43,4 @@
 warn: Ignoring write to miscreg pmovsr
 warn: Ignoring write to miscreg pmcr
 warn:  instruction 'mcr dcisw' unimplemented
-warn: CP14 unimplemented crn[9], opc1[1], crm[0], opc2[2]
+warn: CP14 unimplemented crn[3], opc1[2], crm[8], opc2[2]
diff -r 9818190de72e -r 207d6f2f1d53 
tests/long/fs/10.linux-boot/ref/arm/linux/realview-o3-dual/simout
--- a/tests/long/fs/10.linux-boot/ref/arm/linux/realview-o3-dual/simout Sat Oct 
10 16:45:38 2015 -0500
+++ b/tests/long/fs/10.linux-boot/ref/arm/linux/realview-o3-dual/simout Sat Oct 
10 16:45:41 2015 -0500
@@ -1,18 +1,16 @@
-Redirecting stdout to 
build/ARM/tests/opt/long/fs/10.linux-boot/arm/linux/realview-o3-dual/simout
-Redirecting stderr to 
build/ARM/tests/opt/long/fs/10.linux-boot/arm/linux/realview-o3-dual/simerr
 gem5 Simulator System.  http://gem5.org
 gem5 is copyrighted software; use the --copyright option for details.
 
-gem5 compiled Sep 14 2015 23:29:19
-gem5 started Sep 14 2015 23:52:21
-gem5 executing on ribera.cs.wisc.edu
-command line: build/ARM/gem5.opt -d 
build/ARM/tests/opt/long/fs/10.linux-boot/arm/linux/realview-o3-dual -re 
/scratch/nilay/GEM5/gem5/tests/run.py 
build/ARM/tests/opt/long/fs/10.linux-boot/arm/linux/realview-o3-dual
+gem5 compiled Oct 10 2015 11:28:39
+gem5 started Oct 10 2015 11:45:23
+gem5 executing on artery, pid 26655
+command line: build/ARM/gem5.opt -d 
build/ARM/tests/opt/long/fs/10.linux-boot/arm/linux/realview-o3-dual -re 
/home/joel/research/gem5/gem5/tests/run.py 
build/ARM/tests/opt/long/fs/10.linux-boot/arm/linux/realview-o3-dual
 
 Global frequency set at 1000000000000 ticks per second
-info: kernel located at: 
/scratch/nilay/GEM5/system/binaries/vmlinux.aarch32.ll_20131205.0-gem5
+info: kernel located at: 
/home/joel/research/gem5/full_system_files/binaries/vmlinux.aarch32.ll_20131205.0-gem5
 info: Using bootloader at address 0x10
 info: Using kernel entry physical address at 0x80008000
-info: Loading DTB file: 
/scratch/nilay/GEM5/system/binaries/vexpress.aarch32.ll_20131205.0-gem5.2cpu.dtb
 at address 0x88000000
+info: Loading DTB file: 
/home/joel/research/gem5/full_system_files/binaries/vexpress.aarch32.ll_20131205.0-gem5.2cpu.dtb
 at address 0x88000000
 info: Entering event queue @ 0.  Starting simulation...
 info: trap check M:0 N:0 1:0 2:0 hdcr 0, hcptr 3fff, hstr 0
 info: trap check M:0 N:0 1:0 2:0 hdcr 0, hcptr 3fff, hstr 0
@@ -29,4 +27,4 @@
 info: trap check M:0 N:0 1:0 2:0 hdcr 0, hcptr 3fff, hstr 0
 info: trap check M:0 N:0 1:0 2:0 hdcr 0, hcptr 3fff, hstr 0
 info: trap check M:0 N:0 1:0 2:0 hdcr 0, hcptr 3fff, hstr 0
-Exiting @ tick 2825405893500 because m5_exit instruction encountered
+Exiting @ tick 2627260787000 because m5_exit instruction encountered
diff -r 9818190de72e -r 207d6f2f1d53 
tests/long/fs/10.linux-boot/ref/arm/linux/realview-o3-dual/stats.txt
--- a/tests/long/fs/10.linux-boot/ref/arm/linux/realview-o3-dual/stats.txt      
Sat Oct 10 16:45:38 2015 -0500
+++ b/tests/long/fs/10.linux-boot/ref/arm/linux/realview-o3-dual/stats.txt      
Sat Oct 10 16:45:41 2015 -0500
@@ -4,11 +4,11 @@
 sim_ticks                                2627260787000                       # 
Number of ticks simulated
 final_tick                               2627260787000                       # 
Number of ticks from beginning of simulation (restored from checkpoints and 
never reset)
 sim_freq                                 1000000000000                       # 
Frequency of simulated ticks
-host_inst_rate                                  87166                       # 
Simulator instruction rate (inst/s)
-host_op_rate                                   105753                       # 
Simulator op (including micro ops) rate (op/s)
-host_tick_rate                             1901847747                       # 
Simulator tick rate (ticks/s)
-host_mem_usage                                 660800                       # 
Number of bytes of host memory used
-host_seconds                                  1381.43                       # 
Real time elapsed on the host
+host_inst_rate                                  73269                       # 
Simulator instruction rate (inst/s)
+host_op_rate                                    88893                       # 
Simulator op (including micro ops) rate (op/s)
+host_tick_rate                             1598642516                       # 
Simulator tick rate (ticks/s)
+host_mem_usage                                 609448                       # 
Number of bytes of host memory used
+host_seconds                                  1643.43                       # 
Real time elapsed on the host
 sim_insts                                   120413300                       # 
Number of instructions simulated
 sim_ops                                     146090184                       # 
Number of ops (including micro ops) simulated
 system.voltage_domain.voltage                       1                       # 
Voltage in Volts
@@ -764,9 +764,9 @@
 system.cpu0.iew.iewIQFullEvents                 24988                       # 
Number of times the IQ has become full, causing a stall
 system.cpu0.iew.iewLSQFullEvents               163669                       # 
Number of times the LSQ has become full, causing a stall
 system.cpu0.iew.memOrderViolationEvents         18608                       # 
Number of memory order violations
-system.cpu0.iew.predictedTakenIncorrect        265561                       # 
Number of branches that were predicted taken incorrectly
+system.cpu0.iew.predictedTakenIncorrect        265563                       # 
Number of branches that were predicted taken incorrectly
 system.cpu0.iew.predictedNotTakenIncorrect       373947                       
# Number of branches that were predicted not taken incorrectly
-system.cpu0.iew.branchMispredicts              639508                       # 
Number of branch mispredicts detected at execute
+system.cpu0.iew.branchMispredicts              639510                       # 
Number of branch mispredicts detected at execute
 system.cpu0.iew.iewExecutedInsts             94079743                       # 
Number of executed instructions
 system.cpu0.iew.iewExecLoadInsts             17020662                       # 
Number of load instructions executed
 system.cpu0.iew.iewExecSquashedInsts           955277                       # 
Number of squashed instructions skipped in execute
diff -r 9818190de72e -r 207d6f2f1d53 
tests/long/fs/10.linux-boot/ref/arm/linux/realview-o3-dual/system.terminal
Binary file 
tests/long/fs/10.linux-boot/ref/arm/linux/realview-o3-dual/system.terminal has 
changed
diff -r 9818190de72e -r 207d6f2f1d53 
tests/long/fs/10.linux-boot/ref/arm/linux/realview64-minor-dual/config.ini
--- 
a/tests/long/fs/10.linux-boot/ref/arm/linux/realview64-minor-dual/config.ini    
    Sat Oct 10 16:45:38 2015 -0500
+++ 
b/tests/long/fs/10.linux-boot/ref/arm/linux/realview64-minor-dual/config.ini    
    Sat Oct 10 16:45:41 2015 -0500
@@ -12,11 +12,11 @@
 type=LinuxArmSystem
 children=bridge cf0 clk_domain cpu0 cpu1 cpu_clk_domain dvfs_handler intrctrl 
iobus iocache l2c membus physmem realview terminal toL2Bus vncserver 
voltage_domain
 atags_addr=134217728
-boot_loader=/scratch/nilay/GEM5/system/binaries/boot_emm.arm64
+boot_loader=/home/joel/research/gem5/full_system_files/binaries/boot_emm.arm64
 boot_osflags=earlyprintk=pl011,0x1c090000 console=ttyAMA0 lpj=19988480 
norandmaps rw loglevel=8 mem=256MB root=/dev/sda1
 cache_line_size=64
 clk_domain=system.clk_domain
-dtb_filename=/scratch/nilay/GEM5/system/binaries/vexpress.aarch64.20140821.dtb
+dtb_filename=/home/joel/research/gem5/full_system_files/binaries/vexpress.aarch64.20140821.dtb
 early_kernel_symbols=false
 enable_context_switch_stats_dump=false
 eventq_index=0
@@ -28,7 +28,7 @@
 have_virtualization=false
 highest_el_is_64=false
 init_param=0
-kernel=/scratch/nilay/GEM5/system/binaries/vmlinux.aarch64.20140821
+kernel=/home/joel/research/gem5/full_system_files/binaries/vmlinux.aarch64.20140821
 kernel_addr_check=true
 load_addr_mask=268435455
 load_offset=2147483648
@@ -38,11 +38,12 @@
 memories=system.physmem system.realview.nvmem system.realview.vram
 mmap_using_noreserve=false
 multi_proc=true
+multi_thread=false
 num_work_ids=16
 panic_on_oops=true
 panic_on_panic=true
 phys_addr_range_64=40
-readfile=/scratch/nilay/GEM5/gem5/tests/halt.sh
+readfile=/home/joel/research/gem5/gem5/tests/halt.sh
 reset_addr_64=0
 symbolfile=
 work_begin_ckpt_count=0
@@ -85,7 +86,7 @@
 [system.cf0.image.child]
 type=RawDiskImage
 eventq_index=0
-image_file=/scratch/nilay/GEM5/system/disks/linaro-minimal-aarch64.img
+image_file=/home/joel/research/gem5/full_system_files/disks/linaro-minimal-aarch64.img
 read_only=true
 
 [system.clk_domain]
@@ -809,12 +810,13 @@
 
 [system.cpu0.toL2Bus]
 type=CoherentXBar
+children=snoop_filter
 clk_domain=system.cpu_clk_domain
 eventq_index=0
 forward_latency=0
 frontend_latency=1
 response_latency=1
-snoop_filter=Null
+snoop_filter=system.cpu0.toL2Bus.snoop_filter
 snoop_response_latency=1
 system=system
 use_default_range=false
@@ -822,6 +824,13 @@
 master=system.cpu0.l2cache.cpu_side
 slave=system.cpu0.icache.mem_side system.cpu0.dcache.mem_side 
system.cpu0.itb.walker.port system.cpu0.dtb.walker.port
 
+[system.cpu0.toL2Bus.snoop_filter]
+type=SnoopFilter
+eventq_index=0
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