mirror of
https://github.com/AsahiLinux/m1n1
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62 lines
1.3 KiB
Python
62 lines
1.3 KiB
Python
from 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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def test_hv_timers():
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u.msr(DAIF, 0)
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print("Testing HV timers...")
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u.msr(HCR_EL2, u.mrs(HCR_EL2) | TGE)
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u.inst(0xd5033fdf) # isb
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u.msr(CNTHP_CTL_EL2, 0)
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u.msr(CNTHP_TVAL_EL2, freq // 2)
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u.msr(CNTHP_CTL_EL2, 1)
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u.msr(CNTHV_CTL_EL2, 0)
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u.msr(CNTHV_TVAL_EL2, freq * 1)
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u.msr(CNTHV_CTL_EL2, 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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print(". %x %x" % (u.mrs(CNTHP_CTL_EL2), u.mrs(CNTHV_CTL_EL2)))
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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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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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u.inst(0xd5033fdf) # isb
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u.msr(CNTP_CTL_EL02, 0)
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u.msr(CNTP_TVAL_EL02, int(freq * 1))
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u.msr(CNTV_CTL_EL02, 0)
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u.msr(CNTV_TVAL_EL02, int(freq * 1.5))
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u.msr(HV_VTMR_LIST, 0)
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u.msr(CNTP_CTL_EL02, 1)
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u.msr(CNTV_CTL_EL02, 1)
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for i in range(15):
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p.nop()
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time.sleep(0.2)
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print(". %x %x %x" % (u.mrs(CNTP_CTL_EL02), u.mrs(CNTV_CTL_EL02), u.mrs(HV_VTMR_LIST)))
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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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