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m1n1.proxyutils: Print and clear L2C regs on SErrors

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Signed-off-by: Hector Martin <marcan@marcan.st>
This commit is contained in:
Hector Martin 2021-09-21 17:15:49 +09:00
parent e08457aaa9
commit 04668b370a
1 changed files with 19 additions and 0 deletions
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19
proxyclient/m1n1/proxyutils.py
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@ -203,6 +203,18 @@ class ProxyUtils(Reloadable):
for i in lines:
print(" " + i)
def print_l2c_regs(self):
print()
print(" == L2C Registers ==")
l2c_err_sts = self.mrs(L2C_ERR_STS_EL1)
print(f" L2C_ERR_STS: {l2c_err_sts:#x}")
print(f" L2C_ERR_ADR: {self.mrs(L2C_ERR_ADR_EL1):#x}");
print(f" L2C_ERR_INF: {self.mrs(L2C_ERR_INF_EL1):#x}");
self.msr(L2C_ERR_STS_EL1, l2c_err_sts) # Clear the flag bits
self.msr(DAIF, self.mrs(DAIF) | 0x100) # Re-enable SError exceptions
def print_exception(self, code, ctx, addr=lambda a: f"0x{a:x}"):
print(f" == Exception taken from {ctx.spsr.M.name} ==")
el = ctx.spsr.M >> 2
@ -249,6 +261,13 @@ class ProxyUtils(Reloadable):
else:
print(" No instruction syndrome available")
if iss.DFSC == DABORT_DFSC.ECC_ERROR:
self.print_l2c_regs()
elif code == EXC.SERROR:
if ctx.esr.EC == ESR_EC.SERROR and ctx.esr.ISS == 0:
self.print_l2c_regs()
print()
@contextmanager