added comments to existing MMU tests

tests/wally-riscv-arch-test/riscv-test-suite/rv64i_m/privilege/references/WALLY-MMU-SV39.reference_output

@@ -1,104 +1,104 @@
-0000000b
+0000000b # Test 12.3.1.1.3: ecall from going to S mode from M mode
 00000000
-beef0000
+beef0000 # 7 read test successes
 0000dead
-beef0055
+beef0055 # read 2
 0880dead
-beef0033
+beef0033 # read 3
 0990dead
-beef0077
+beef0077 # read 4
 0110dead
-beef0099
+beef0099 # read 5
 0220dead
-beef0440
+beef0440 # read 6
 0330dead
-beef0bb0
+beef0bb0 # read 7
 0440dead
-beef0000
+beef0000 # Test 12.3.1.1.4: 3 read test successes
 0000dead
-beef0055
+beef0055 # read 2
 0880dead
-beef0099
+beef0099 # read 3
 0220dead
-0000000d
+0000000d # Test 12.3.1.2.1: 2 read tests with page fault 
 00000000
 00000bad
 00000000
-0000000d
+0000000d # read 2
 00000000
 00000bad
 00000000
-0000000d
+0000000d # Test 12.3.1.2.2: read test with page fault
 00000000
 00000bad
 00000000
-0000000f
+0000000f # Test 12.3.1.2.3: write test with page fault
 00000000
-0000000d
+0000000d # Test 12.3.1.2.4: read test with page fault
 00000000
 00000bad
 00000000
-0000000d
+0000000d # Test 12.3.1.2.5: 2 read tests with page faults
 00000000
 00000bad
 00000000
-0000000d
+0000000d # read 2
 00000000
 00000bad
 00000000
-00000111
+00000111 # Test 12.3.1.3.1: execute test success
 00000000
-00000009
+00000009 # ecall from going to U mode from S mode
 00000000
-0000000d
+0000000d # read test with page fault
 00000000
 00000bad
 00000000
-0000000c
+0000000c # execute test with page fault
 00000000
 00000bad
 00000000
-beef0033
+beef0033 # Test 12.3.1.3.2: read test success
 0990dead
-00000008
+00000008 # ecall from going to S mode from U mode
 00000000
-beef0077
+beef0077 # read test success
 0110dead
-0000000c
+0000000c # execute test with page fault 
 00000000
 00000bad
 00000000
-0000000d
+0000000d # read test with page fault
 00000000
 00000bad
 00000000
-0000000d
+0000000d # Test 12.3.1.3.3: read test with page fault 
 00000000
 00000bad
 00000000
-beef0440
+beef0440 # read test success
 0330dead
-beef0110
+beef0110 # Test 12.3.1.3.4: read test success
 0440dead
-0000000f
+0000000f # write test with page fault
 00000000
-0000000c
+0000000c # Test 12.3.1.3.5: execute test with page fault
 00000000
 00000bad
 00000000
-0000000f
+0000000f # Test 12.3.1.3.6: write test with page fault
 00000000
-0000000d
+0000000d # read test with page fault
 00000000
 00000bad
 00000000
-0000000f
+0000000f # Test 12.3.1.3.7: write test with page fault
 00000000
-beef0bb0
+beef0bb0 # read test success
 0440dead
-00000009
+00000009 # ecall from test termination from S mode
 00000000
-deadbeef
+deadbeef # rest of the output space
 deadbeef
 deadbeef
 deadbeef

tests/wally-riscv-arch-test/riscv-test-suite/rv64i_m/privilege/references/WALLY-MMU-SV48.reference_output

@@ -1,112 +1,112 @@
-0000000b
+0000000b # Test 12.3.1.1.3: ecall from going to S mode from M mode
 00000000
-beef0cc0
+beef0cc0 # 8 read test successes
 0ee0dead
-beef0000
+beef0000 # read 2
 0000dead
-beef0055
+beef0055 # read 3
 0880dead
-beef0033
+beef0033 # read 4
 0990dead
-beef0077
+beef0077 # read 5
 0110dead
-beef0099
+beef0099 # read 6
 0220dead
-beef0440
+beef0440 # read 7
 0330dead
-beef0bb0
+beef0bb0 # read 8
 0440dead
-beef0cc0
+beef0cc0 # Test 12.3.1.1.4: 4 read test successes
 0ee0dead
-beef0000
+beef0000 # read 2
 0000dead
-beef0055
+beef0055 # read 3
 0880dead
-beef0099
+beef0099 # read 4
 0220dead
-0000000d
+0000000d # Test 12.3.1.2.1: 2 read tests with page fault
 00000000
 00000bad
 00000000
-0000000d
+0000000d # read 2
 00000000
 00000bad
 00000000
-0000000d
+0000000d # Test 12.3.1.2.2: read test with page fault
 00000000
 00000bad
 00000000
-0000000f
+0000000f # Test 12.3.1.2.3: write test with page fault
 00000000
-0000000d
+0000000d # Test 12.3.1.2.4: read test with page fault
 00000000
 00000bad
 00000000
-0000000d
+0000000d # Test 12.3.1.2.5: 3 read tests with page fault
 00000000
 00000bad
 00000000
-0000000d
+0000000d # read 2
 00000000
 00000bad
 00000000
-0000000d
+0000000d # read 3
 00000000
 00000bad
 00000000
-00000111
+00000111 # Test 12.3.1.3.1: Execute test success
 00000000
-00000009
+00000009 # ecall from going to U mode from S mode
 00000000
-0000000d
+0000000d # read test with page fault
 00000000
 00000bad
 00000000
-0000000c
+0000000c # execute test with page fault
 00000000
 00000bad
 00000000
-beef0033
+beef0033 # Test 12.3.1.3.2: read test success
 0990dead
-00000008
+00000008 # ecall from going to S mode from U mode
 00000000
-beef0077
+beef0077 # read test success
 0110dead
-0000000c
+0000000c # execute test with page fault
 00000000
 00000bad
 00000000
-0000000d
+0000000d # read test with page fault`
 00000000
 00000bad
 00000000
-0000000d
+0000000d # Test 12.3.1.3.3: read test with page fault
 00000000
 00000bad
 00000000
-beef0440
+beef0440 # read test success
 0330dead
-beef0110
+beef0110 # Test 12.3.1.3.4: read test success
 0440dead
-0000000f
+0000000f # write test with page fault
 00000000
-0000000c
+0000000c # Test 12.3.1.3.5: executable test with page fault
 00000000
 00000bad
 00000000
-0000000f
+0000000f # Test 12.3.1.3.6: write test with page fault
 00000000
-0000000d
+0000000d # read test with page fault
 00000000
 00000bad
 00000000
-0000000f
+0000000f # Test 12.3.1.3.7: write test with page fault
 00000000
-beef0bb0
+beef0bb0 # read test success
 0440dead
-00000009
+00000009 # ecall from test termination in S mode.
 00000000
-deadbeef
+deadbeef # rest of the output space
 deadbeef
 deadbeef
 deadbeef

tests/wally-riscv-arch-test/riscv-test-suite/rv64i_m/privilege/references/WALLY-PMA.reference_output

@@ -1,148 +1,148 @@
-beef00b4
+beef00b4 # Test 12.3.2.1: read 64 bits success in CLINT 
-0000dead
+0000dead # all of these read successes are also confirming successful writes
-beef00b5
+beef00b5 # read 32 bits success in CLINT (sign extended)
 ffffffff
-000000b6
+000000b6 # read 16 bits success in CLINT
 00000000
-ffffffb7
+ffffffb7 # read 8 bits success in CLINT (sign extended)
 ffffffff
-00000001
+00000001 # execute test with access fault in CLINT
 00000000
 00000bad
 00000000
-00000007
+00000007 # write 64 bits with access fault in PLIC
 00000000
-00000005
+00000005 # read 64 bits with access fault in PLIC
 00000000
 00000bad
 00000000
-00000002
+00000002 # read 32 bits success in PLIC (confriming 32 bit write)
 00000000
-00000007
+00000007 # write 16 bits with access fault in PLIC
 00000000
-00000005
+00000005 # read 16 bits with access fault in PLIC
 00000000
 00000bad
 00000000
-00000007
+00000007 # write 8 bits with access fault in PLIC
 00000000
-00000005
+00000005 # read 8 bits with access fault in PLIC
 00000000
 00000bad
 00000000
-00000001
+00000001 # execute test with access fault in PLIC
 00000000
 00000bad
 00000000
-00000007
+00000007 # write 64 bits with access fault in UART
 00000000
-00000005
+00000005 # read 64 bits with access fault in UART
 00000000
 00000bad
 00000000
-00000007
+00000007 # write 32 bits with access fault in UART
 00000000
-00000005
+00000005 # read 32 bits with access fault in UART
 00000000
 00000bad
 00000000
-00000007
+00000007 # write 16 bits with access fault in UART
 00000000
-00000005
+00000005 # read 16 bits with access fault in UART
 00000000
 00000bad
 00000000
-ffffffbf
+ffffffbf # read 8 bits success in UART (confirming 8 bit write)
 ffffffff
-00000001
+00000001 # execute test with access fault in UART
 00000000
 00000bad
 00000000
-00000007
+00000007 # write 64 bits with access fault in GPIO
 00000000
-00000005
+00000005 # read 64 bits with access fault in GPIO
 00000000
 00000bad
 00000000
-beef00c1
+beef00c1 # read 32 bits success in GPIO (confirming 32 bit write)
 ffffffff
-00000007
+00000007 # write 16 bits with access fault in GPIO
 00000000
-00000005
+00000005 # read 16 bits with access fault in GPIO
 00000000
 00000bad
 00000000
-00000007
+00000007 # write 8 bits with access fault in GPIO
 00000000
-00000005
+00000005 # read 8 bits with access fault in GPIO
 00000000
 00000bad
 00000000
-00000001
+00000001 # execute test with access fault in GPIO
 00000000
 00000bad
 00000000
-00000007
+00000007 # write test with access fault in random memory location
 00000000
-00000005
+00000005 # read test with access fault in random memory location
 00000000
 00000bad
 00000000
-00000001
+00000001 # execute test with access fault in random memory location
 00000000
 00000bad
 00000000
-00000007
+00000007 # write test with access fault just after BOOTROM
 00000000
-00000005
+00000005 # read test with access fault just after BOOTROM
 00000000
 00000bad
 00000000
-00000001
+00000001 # execute test with access fault just after BOOTROM
 00000000
 00000bad
 00000000
-00000007
+00000007 # write test with access fault just after CLINT
 00000000
-00000005
+00000005 # read test with access fault just after CLINT
 00000000
 00000bad
 00000000
-00000001
+00000001 # execute test with access fault just after CLINT
 00000000
 00000bad
 00000000
-00000007
+00000007 # write test with access fault just after PLIC
 00000000
-00000005
+00000005 # read test with access fault just after PLIC
 00000000
 00000bad
 00000000
-00000001
+00000001 # execute test with access fault just after PLIC
 00000000
 00000bad
 00000000
-00000007
+00000007 # write test with access fault just after UART
 00000000
-00000005
+00000005 # read test with access fault just after UART
 00000000
 00000bad
 00000000
-00000001
+00000001 # execute test with access fault just after UART
 00000000
 00000bad
 00000000
-00000007
+00000007 # write test with access fault just after GPIO
 00000000
-00000005
+00000005 # read test with access fault just after GPIO
 00000000
 00000bad
 00000000
-00000001
+00000001 # execute test with access fault just after GPIO
 00000000
 00000bad
 00000000
-0000000b
+0000000b # ecall from terminating tests in M mode
 00000000
 deadbeef
 deadbeef

tests/wally-riscv-arch-test/riscv-test-suite/rv64i_m/privilege/references/WALLY-PMP.reference_output

@@ -1,58 +1,58 @@
-0fffffff
+0fffffff # Test 12.3.2.2.1: writeback of value written to PMPADDR0
+00000000 
+20040000 # writeback of value written to PMPADDR1
 00000000
-20040000
+2004003f # writeback of value written to PMPADDR2
 00000000
-2004003f
+20040080 # writeback of value written to PMPADDR3
 00000000
-20040080
+20040084 # writeback of value written to PMPADDR4
 00000000
-20040084
+200400c0 # writeback of value written to PMPADDR5
 00000000
-200400c0
+2004013f # writeback of value written to PMPADDR6
 00000000
-2004013f
+2fffffff # writeback of value written to PMPADDR15
 00000000
-2fffffff
+0009001f # writeback of value written to PMPCFG0
-00000000
-0009001f
 0018900c
-00000000
+00000000 # writeback of value written to PMPCFG2
 1f000000
-0009001f
+0009001f # old value of PMPCFG0 after failed write to locked out region
 0018900c
-200400c0
+200400c0 # old value of PMPADDR5 after failed write to locked out region
 00000000
-00000005
+00000005 # Test 12.3.2.2.2: read test with access fault to region with L=1, R=0
 00000000
 00000bad
 00000000
-00600dbb
+00600dbb # read test success from region with L=X=W=R=0
 00000000
-0000000b
+0000000b # Test 12.3.2.2.3: ecall from going to S mode from M mode
 00000000
-00600d15
+00600d15 # read test success from RW range (confirming previous write)
 00000000
-00600d02
+00600d02 # read test success from outside the edge of a read only range
 00000000
-00600d12
+00600d12 # read test success from outside the other edge of a read only range
 00000000
-00000007
+00000007 # write test with access fault in read only range
 00000000
-00600daa
+00600daa # read success from read only range
 00000000
-00000007
+00000007 # write test with access fault in no-access range
 00000000
-00000005
+00000005 # read test with access fault in no-access range
 00000000
 00000bad
 00000000
-00000001
+00000001 # execute test with access fault in no-execute range
 00000000
 00000bad
 00000000
-00000111
+00000111 # execute sucess when X=1
 00000000
-00000009
+00000009 # ecall from terminating tests in S mode
 00000000
 deadbeef
 deadbeef

tests/wally-riscv-arch-test/riscv-test-suite/rv64i_m/privilege/references/WALLY-minfo-01.reference_output

@@ -1,20 +1,20 @@
-00000002
+00000002 # Test 5.2.3.1: write to read-only CSR failed with illegal instruction
 00000000
-00000011
+00000011 # confirm read-only permissions of mvendorid
 00000000
-00000002
+00000002 # write to read-only CSR failed with illegal instruction
 00000000
-00000011
+00000011 # confirm read-only permissions of marchid
 00000000
-00000002
+00000002 # write to read-only CSR failed with illegal instruction
 00000000
-00000011
+00000011 # confirm read-only permissions of mimpid
 00000000
-00000002
+00000002 # write to read-only CSR failed with illegal instruction
 00000000
-00000011
+00000011 # confirm read-only permissions of mhartid
 00000000
-0000000b
+0000000b # ecall from terminating tests in M mode
 00000000
 deadbeef
 deadbeef