mirror of
https://github.com/AsahiLinux/m1n1
synced 2024-09-20 21:21:53 +00:00
d9561b7507
All the common/importable stuff now lives in the 'm1n1' module. General use tools are in tools/ Reverse engineering experiments are in experiments/ Signed-off-by: Hector Martin <marcan@marcan.st>
109 lines
2.7 KiB
Python
Executable file
109 lines
2.7 KiB
Python
Executable file
#!/usr/bin/env python3
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# SPDX-License-Identifier: MIT
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import sys, pathlib
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sys.path.append(str(pathlib.Path(__file__).resolve().parents[1]))
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from m1n1.setup import *
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HV_VTMR_CTL = (3, 5, 15, 1, 3)
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HV_VTMR_CTL_VMASK = (1 << 0)
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HV_VTMR_CTL_PMASK = (1 << 1)
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HV_VTMR_LIST = (3, 5, 15, 1, 2)
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TGE = (1<<27)
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u.msr(CNTHCTL_EL2, 3 << 10) # EL1PTEN | EL1PCTEN
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def run_test(ctl, tval):
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u.inst(0xd5033fdf) # isb
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u.msr(ctl, 0)
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u.msr(tval, int(freq * 0.8))
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u.msr(ctl, 1)
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for i in range(6):
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p.nop()
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time.sleep(0.2)
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#u.inst(0xd5033fdf, call=p.el1_call)
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print(" . (ISR_EL1=%d) CTL=%x VTMR_LIST=%x" % (u.mrs(ISR_EL1), u.mrs(ctl), u.mrs(HV_VTMR_LIST)))
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u.msr(ctl, 0)
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def test_hv_timers():
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u.msr(DAIF, 0x3c0)
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print("Testing HV timers...")
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print(" TGE = 1")
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u.msr(HCR_EL2, u.mrs(HCR_EL2) | TGE | (1 << 3) | (1 << 4))
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print(" P:")
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run_test(CNTP_CTL_EL0, CNTP_TVAL_EL0)
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print(" V:")
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run_test(CNTV_CTL_EL0, CNTV_TVAL_EL0)
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def test_guest_timers():
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u.msr(DAIF, 0)
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print("Testing guest timers...")
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print(" TGE = 1, vGIC mode=0, timers unmasked")
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u.msr(HCR_EL2, (u.mrs(HCR_EL2) | TGE) | (1 << 3) | (1 << 4))
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u.msr(HACR_EL2, 0)
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u.msr(HV_VTMR_CTL, 3)
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print(" P:")
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#run_test(CNTP_CTL_EL02, CNTP_TVAL_EL02)
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print(" V:")
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#run_test(CNTV_CTL_EL02, CNTV_TVAL_EL02)
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print(" TGE = 1, vGIC mode=0, timers masked")
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u.msr(HV_VTMR_CTL, 0)
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print(" P:")
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run_test(CNTP_CTL_EL02, CNTP_TVAL_EL02)
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print(" V:")
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run_test(CNTV_CTL_EL02, CNTV_TVAL_EL02)
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print(" TGE = 0, vGIC mode=0, timers unmasked")
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u.msr(HCR_EL2, (u.mrs(HCR_EL2) & ~TGE) | (1 << 3) | (1 << 4))
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u.msr(HACR_EL2, 0)
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u.msr(HV_VTMR_CTL, 3)
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print(" P:")
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run_test(CNTP_CTL_EL02, CNTP_TVAL_EL02)
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print(" V:")
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run_test(CNTV_CTL_EL02, CNTV_TVAL_EL02)
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print(" TGE = 0, vGIC mode=0, timers masked")
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u.msr(HV_VTMR_CTL, 0)
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print(" P:")
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run_test(CNTP_CTL_EL02, CNTP_TVAL_EL02)
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print(" V:")
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run_test(CNTV_CTL_EL02, CNTV_TVAL_EL02)
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print(" TGE = 0, vGIC mode=1, timers unmasked")
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u.msr(HCR_EL2, (u.mrs(HCR_EL2) & ~TGE) | (1 << 3) | (1 << 4))
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u.msr(HACR_EL2, 1<<20)
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u.msr(HV_VTMR_CTL, 3)
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print(" P:")
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run_test(CNTP_CTL_EL02, CNTP_TVAL_EL02)
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print(" V:")
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run_test(CNTV_CTL_EL02, CNTV_TVAL_EL02)
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print(" TGE = 0, vGIC mode=1, timers masked")
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u.msr(HV_VTMR_CTL, 0)
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print(" P:")
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run_test(CNTP_CTL_EL02, CNTP_TVAL_EL02)
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print(" V:")
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run_test(CNTV_CTL_EL02, CNTV_TVAL_EL02)
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return
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freq = u.mrs(CNTFRQ_EL0)
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print("Timer freq: %d" % freq)
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test_hv_timers()
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test_guest_timers()
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