notdirty_mem_write: implement 8-byte accesses
Aligned 8-byte memory writes by a 64-bit target on a 64-bit host should always turn into atomic 8-byte writes on the host, however if we missed in the softmmu, and the TLB line was marked as not dirty, then we would end up tearing the 8-byte write into two 4-byte writes in access_with_adjusted_size(). Signed-off-by: NAndrew Baumann <Andrew.Baumann@microsoft.com> Message-Id: <20171013181913.7556-1-Andrew.Baumann@microsoft.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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