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SubjectRe: Memory access
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> My question: is the kernel using or protecting this area of the memory,
> and is there a way to deprotect it??? (how dangerous!)

The kernel maps ISA space at different addresses. What address and how it is
accessed depends on the CPU and system

isa_readb/readw/readl(addr)
isa/writeb/writew/writel(value,addr)

to read/write 8,16,32 bit values



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