23 lines
869 B
Plaintext
23 lines
869 B
Plaintext
Known issues in NVMM, low priority in most cases.
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====== KERNEL NVMM DRIVER ======
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* 32bit-PAE guests can misbehave on Intel, because we need to manually
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install the PDPTEs, and currently we don't do it. In practice they don't
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misbehave because the emulator never has to interfere with CR3.
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* AMD: we don't support VCPU_CONF_TPR, would be nice to.
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* AMD: need to do comprehensive CPUID filtering, like we already do on
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Intel.
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====== LIBNVMM ======
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* There are still a few twisted corner cases we don't handle in the instruction
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emulator. For example if the guest makes an MMIO access relative to RSP, we
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must base the GVA on %SS and not %DS. This is tiring, and in practice, no
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guest is dumb enough to perform such accesses.
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* Maybe the __areas should have a rwlock? I don't think Qemu unmaps memory
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while VCPUs are running, but still.
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