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Alexandru Elisei authored
A device's response to memory or I/O accesses is disabled when Memory Space, respectively I/O Space, is set to 0 in the Command register. According to the PCI Local Bus Specification Revision 3.0, those two bits reset to 0. Let's respect the specifiction, so set Command and I/O Space to 0 on reset, and ignore accesses to a device's respective regions when they are disabled.
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