Joerg Pommnitz wrote:
Additionally its listening on the system bus. Question: Can it tap into
data addressed to another peripheral (say the hd controller)? If so, then
only the system RAM is outside its scope.
A pci device can read system RAM and other memory-mapped PCI devices
(such as display framebuffers) using DMA. In addition, a pci (but not
pci-express) device can snoop on pci bus traffic to other devices.
Typically, however, hard drive controllers will be integrated into the
chipset so the data is not on the bus.
--
error compiling committee.c: too many arguments to function
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