Messages in this thread | | | Date | Thu, 13 Jul 2006 23:22:31 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH 1/1] Fix boot on efi 32 bit Machines [try #4] |
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Eric W. Biederman wrote: > > While we are thinking about this I have a stupid question. > Currently if a memory mapped region does not fall in a standard PCI > bar we insist it must be E820 reserved. However if we E820 reserve > the memory of a standard pci bar it becomes unusable. > > Is this really the behavior that we intend? > > It gets confusing that E820 reserved gets double duty as memory > the BIOS is using and MMIO space that is mapped by a non-standard bar. >
Well, they are both really the same thing... "memory space the OS has no idea how it works; here there be dragons."
-hpa
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