cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

test-sve.py (2169B)

      1from __future__ import print_function
      2#
      3# Test the SVE registers are visable and changeable via gdbstub
      4#
      5# This is launched via tests/guest-debug/run-test.py
      6#
      7
      8import gdb
      9import sys
     10
     11MAGIC = 0xDEADBEEF
     12
     13failcount = 0
     14
     15def report(cond, msg):
     16    "Report success/fail of test"
     17    if cond:
     18        print ("PASS: %s" % (msg))
     19    else:
     20        print ("FAIL: %s" % (msg))
     21        global failcount
     22        failcount += 1
     23
     24def run_test():
     25    "Run through the tests one by one"
     26
     27    gdb.execute("info registers")
     28    report(True, "info registers")
     29
     30    gdb.execute("info registers vector")
     31    report(True, "info registers vector")
     32
     33    # Now all the zregs
     34    frame = gdb.selected_frame()
     35    for i in range(0, 32):
     36        rname = "z%d" % (i)
     37        zreg = frame.read_register(rname)
     38        report(True, "Reading %s" % rname)
     39        for j in range(0, 4):
     40            cmd = "set $%s.q.u[%d] = 0x%x" % (rname, j, MAGIC)
     41            gdb.execute(cmd)
     42            report(True, "%s" % cmd)
     43        for j in range(0, 4):
     44            reg = "$%s.q.u[%d]" % (rname, j)
     45            v = gdb.parse_and_eval(reg)
     46            report(str(v.type) == "uint128_t", "size of %s" % (reg))
     47        for j in range(0, 8):
     48            cmd = "set $%s.d.u[%d] = 0x%x" % (rname, j, MAGIC)
     49            gdb.execute(cmd)
     50            report(True, "%s" % cmd)
     51        for j in range(0, 8):
     52            reg = "$%s.d.u[%d]" % (rname, j)
     53            v = gdb.parse_and_eval(reg)
     54            report(str(v.type) == "uint64_t", "size of %s" % (reg))
     55            report(int(v) == MAGIC, "%s is 0x%x" % (reg, MAGIC))
     56
     57#
     58# This runs as the script it sourced (via -x, via run-test.py)
     59#
     60try:
     61    inferior = gdb.selected_inferior()
     62    arch = inferior.architecture()
     63    report(arch.name() == "aarch64", "connected to aarch64")
     64except (gdb.error, AttributeError):
     65    print("SKIPPING (not connected)", file=sys.stderr)
     66    exit(0)
     67
     68try:
     69    # These are not very useful in scripts
     70    gdb.execute("set pagination off")
     71
     72    # Run the actual tests
     73    run_test()
     74except:
     75    print ("GDB Exception: %s" % (sys.exc_info()[0]))
     76    failcount += 1
     77
     78print("All tests complete: %d failures" % failcount)
     79
     80exit(failcount)