mirror of
https://github.com/openhwgroup/cvw
synced 2025-02-11 06:05:49 +00:00
Improved NAPOT test coverage
This commit is contained in:
David Harris
parent
a59e7f782b
commit
376ca68cbb
@ -65,14 +65,20 @@ add wave -noupdate -group {Execution Stage} /testbench/dut/core/ifu/PCE
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add wave -noupdate -group {Execution Stage} /testbench/dut/core/ifu/InstrE
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add wave -noupdate -group {Execution Stage} /testbench/InstrEName
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add wave -noupdate -group {Execution Stage} /testbench/dut/core/ieu/c/InstrValidE
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add wave -noupdate -group {Execution Stage} /testbench/dut/core/ieu/dp/SrcAE
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add wave -noupdate -group {Execution Stage} /testbench/dut/core/ieu/dp/SrcBE
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add wave -noupdate -group {Execution Stage} /testbench/dut/core/ieu/dp/ALUResultE
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add wave -noupdate -expand -group {Memory Stage} /testbench/FunctionName/FunctionName/FunctionName
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add wave -noupdate -expand -group {Memory Stage} /testbench/dut/core/InstrValidM
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add wave -noupdate -expand -group {Memory Stage} /testbench/dut/core/PCM
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add wave -noupdate -expand -group {Memory Stage} /testbench/dut/core/InstrM
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add wave -noupdate -expand -group {Memory Stage} /testbench/InstrMName
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add wave -noupdate -expand -group {Memory Stage} /testbench/dut/core/lsu/IEUAdrM
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add wave -noupdate -expand -group lsu /testbench/dut/core/lsu/ReadDataM
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add wave -noupdate -expand -group lsu /testbench/dut/core/lsu/WriteDataM
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add wave -noupdate -group {WriteBack stage} /testbench/InstrW
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add wave -noupdate -group {WriteBack stage} /testbench/InstrWName
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add wave -noupdate -group {Execution Stage} /testbench/dut/core/ieu/dp/ResultW
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add wave -noupdate -group CSRs /testbench/dut/core/priv/priv/csr/csrm/MCAUSE_REGW
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add wave -noupdate -group CSRs /testbench/dut/core/priv/priv/csr/MCOUNTEREN_REGW
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add wave -noupdate -group CSRs /testbench/dut/core/priv/priv/csr/MCOUNTINHIBIT_REGW
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@ -92,7 +92,10 @@ changeprivilege:
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trap_return: # return from trap handler
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csrr t0, mepc # get address of instruction that caused exception
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li t1, 0x20000
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csrs mstatus, t1 # set mprv bit to fetch instruction with permission of code that trapped
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lh t0, 0(t0) # get instruction that caused exception
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csrc mstatus, t1 # clear mprv bit to restore normal operation
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li t1, 3
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and t0, t0, t1 # mask off upper bits
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beq t0, t1, instr32 # if lower 2 bits are 11, instruction is uncompresssed
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@ -41,8 +41,21 @@ main:
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li a0, 1
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ecall
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li t0, 0x80215240
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li t0, 0x80215240 # Test NAPOT pages
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jal a1, looptest
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li t0, 0x80215240 # Test NAPOT pages
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jal a1, looptest
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li t0, 0xC0215240 # Test ill-formed NAPOT pages
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jal a1, looptest
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li t0, 0xC0215240 # Test ill-formed NAPOT pages
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jal a1, looptest
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li t0, 0x40215240 # Test properly formed pages with 1 in PPN[3] that are not NAPOT
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jal a1, looptest
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li t0, 0x40215240 # Test properly formed pages with 1 in PPN[3] that are not NAPOT
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jal a1, looptest
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j done
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looptest:
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li t2, 0 # i = 0
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li t3, 33 # Max amount of Loops = 32
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li t4, 0x200000
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@ -58,7 +71,7 @@ loop: bge t2, t3, finished # exit loop if i >= loops
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j loop
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finished:
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j done
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jr a1
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.data
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@ -69,9 +82,10 @@ pagetable:
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# next page table at 0x80011000
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.align 12
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.8byte 0x0000000000000000
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.8byte 0x00000000200048C1
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.8byte 0x00000000200048C1
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.8byte 0x0000000000000000 # gigapage at 0x00000000
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.8byte 0x00000000200058C1 # gigapage at 0x40000000 used for non-NAPOT with PPN bit 3 set
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.8byte 0x00000000200048C1 # gigapage at 0x80000000 used for testing NAPOT huge pages
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.8byte 0x00000000200050C1 # gigapage at 0xC0000000 mapped to ill-formed NAPOT with wrong PPN
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# Next page table at 0x80012000
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@ -112,7 +126,7 @@ pagetable:
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.8byte 0x0000000020004CC1
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.8byte 0x0000000020004CC1
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# Leaf page table at 0x80013000
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# Leaf page table at 0x80013000 with NAPOT pages
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.align 12
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#80000000
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.8byte 0x80000000200020CF
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@ -182,3 +196,178 @@ pagetable:
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.8byte 0x800000002000E0CF
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.8byte 0x800000002000E0CF
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# Next page table at 0x80014000: mega-sized, pointing to malformed NAPOT
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.align 12
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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.8byte 0x00000000200054C1
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# Leaf page table at 0x80015000 with malformed NAPOT pages (wrong PPN) starting at 0xC0000000
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.align 12
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#80000000
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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.8byte 0x80000000200000CF
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# Next page table at 0x80016000: mega-sized, pointing to properly formed PTE with 1 in PPN bit 3
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.align 12
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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.8byte 0x0000000020005CC1
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# Leaf page table at 0x80017000 with properly formed PTE with bit 4 of PPN set but no NAPOT
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.align 12
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#80000000
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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.8byte 0x00000000200020CF
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