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(parent: 708e80d) | patch
x86: pc: Put a stub IO device at port 0xed which the kernel can use for delays.
authorGabe Black <gabeblack@google.com>
Sat, 22 Nov 2014 01:22:02 +0000 (17:22 -0800)
committerGabe Black <gabeblack@google.com>
Sat, 22 Nov 2014 01:22:02 +0000 (17:22 -0800)
commit8bbfb1b39d06f33423f3a0acc661559fd0e3d038
tree36840b4ef77b3304efa5bbec0ae5fd841b12c20btree
parent708e80d9bb0577662dd7181d4ae947c2cc9b8ac9commit | diff
x86: pc: Put a stub IO device at port 0xed which the kernel can use for delays.

There was already a stub device at 0x80, the port traditionally used for an IO
delay. 0x80 is also the port used for POST codes sent by firmware, and that
may have prompted adding this port as a second option.
src/dev/x86/Pc.py diff | blob | history