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m1n1.hw.dart: Fix dirty cache clobbering on iomap_at()

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Fixes: #102

Signed-off-by: Hector Martin <marcan@marcan.st>
This commit is contained in:
Hector Martin 2021-08-29 00:02:53 +09:00
parent b7ad368158
commit eec6bbdeaf
1 changed files with 0 additions and 3 deletions
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3
proxyclient/m1n1/hw/dart.py
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@ -150,9 +150,6 @@ class DART(Reloadable):
cached, l1 = self.get_pt(ttbr.ADDR << 12) cached, l1 = self.get_pt(ttbr.ADDR << 12)
l1idx = (page >> self.L1_OFF) & self.IDX_MASK l1idx = (page >> self.L1_OFF) & self.IDX_MASK
l1pte = PTE(l1[l1idx]) l1pte = PTE(l1[l1idx])
if not l1pte.VALID and cached:
cached, l1 = self.get_pt(ttbr.ADDR << 12, uncached=True)
l1pte = PTE(l1[l1idx])
if not l1pte.VALID: if not l1pte.VALID:
l2addr = self.u.memalign(self.PAGE_SIZE, self.PAGE_SIZE) l2addr = self.u.memalign(self.PAGE_SIZE, self.PAGE_SIZE)
self.pt_cache[l2addr] = [0] * self.Lx_SIZE self.pt_cache[l2addr] = [0] * self.Lx_SIZE