From: Linus Torvalds <torvalds@linux-foundation.org> Date: Wed, 23 May 2007 15:16:23 -0700 (PDT)I knew mmconfig was broken conceptually the first time I started seeing write posting "bug fixes" for it that would do a read back from PCI config space via mmconfig to post the write, which of course has potential side-effects on the device and is absolutely illegal if the write just performed put the device into a PM state or whatever. Truth is stranger than fiction at times. MMCONFIG is very much an ill-conceived idea. -
