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author | nyan <nyan@FreeBSD.org> | 2003-11-15 12:33:39 +0000 |
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committer | nyan <nyan@FreeBSD.org> | 2003-11-15 12:33:39 +0000 |
commit | fecbec6a59995d5df3228f10f6b15ea7d1f3c360 (patch) | |
tree | 5cbd505f6dfafd9d3c908b50e98ab85613b2ee6e /sys/pc98 | |
parent | d53c5cf9c27df5734cfc6ac61bf8830d4749bb77 (diff) | |
download | FreeBSD-src-fecbec6a59995d5df3228f10f6b15ea7d1f3c360.zip FreeBSD-src-fecbec6a59995d5df3228f10f6b15ea7d1f3c360.tar.gz |
MFi386: revisions from 1.1102 to 1.1105.
Diffstat (limited to 'sys/pc98')
-rw-r--r-- | sys/pc98/conf/NOTES | 29 |
1 files changed, 13 insertions, 16 deletions
diff --git a/sys/pc98/conf/NOTES b/sys/pc98/conf/NOTES index 7dec1d8..321d531 100644 --- a/sys/pc98/conf/NOTES +++ b/sys/pc98/conf/NOTES @@ -23,30 +23,27 @@ profile 2 ##################################################################### # SMP OPTIONS: # -# The apic device enables the use of the IO APIC for Symmetric I/O. +# The apic device enables the use of the I/O APIC for interrupt delivery. +# The apic device can be used in both UP and SMP kernels, but is required +# for SMP kernels. Thus, the apic device is not strictly an SMP option, +# but it is a prerequisite for SMP. # # Notes: # -# An SMP kernel will ONLY run on an Intel MP spec. qualified motherboard. +# Be sure to disable 'cpu I386_CPU' for SMP kernels. # -# Be sure to disable 'cpu I386_CPU' && 'cpu I486_CPU' for SMP kernels. -# -# Check the 'Rogue SMP hardware' section to see if additional options -# are required by your hardware. +# By default, mixed mode is used to route IRQ0 from the AT timer via +# the 8259A master PIC through the ExtINT pin on the first I/O APIC. +# This can be disabled via the NO_MIXED_MODE option. In that case, +# IRQ0 will be routed via an intpin on the first I/O APIC. Not all +# motherboards hook IRQ0 up to the first I/O APIC even though their +# MP table or MADT may claim to do so. That is why mixed mode is +# enabled by default. # # Mandatory: device apic # I/O apic - -# -# Rogue SMP hardware: -# - -# Bridged PCI cards: -# -# The MP tables of most of the current generation MP motherboards -# do NOT properly support bridged PCI cards. To use one of these -# cards you should refer to ??? +options NO_MIXED_MODE # Disable use of mixed mode ##################################################################### |