Date: Mon, 24 Oct 2005 21:04:19 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern subr_kdb.c subr_smp.c src/sys/amd64/amd64 mp_machdep.c trap.c src/sys/amd64/conf NOTES src/sys/amd64/include smp.h src/sys/conf options.amd64 options.i386 options.pc98 src/sys/i386/conf NOTES src/sys/i386/i386 mp_machdep.c trap.c ... Message-ID: <200510242104.j9OL4J2B045827@repoman.freebsd.org>
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jhb 2005-10-24 21:04:19 UTC
FreeBSD src repository
Modified files:
sys/kern subr_kdb.c subr_smp.c
sys/amd64/amd64 mp_machdep.c trap.c
sys/amd64/conf NOTES
sys/amd64/include smp.h
sys/conf options.amd64 options.i386 options.pc98
sys/i386/conf NOTES
sys/i386/i386 mp_machdep.c trap.c
sys/i386/include smp.h
sys/pc98/conf NOTES
sys/sys smp.h
Log:
Rename the KDB_STOP_NMI kernel option to STOP_NMI and make it apply to all
IPI_STOP IPIs.
- Change the i386 and amd64 MD IPI code to send an NMI if STOP_NMI is
enabled if an attempt is made to send an IPI_STOP IPI. If the kernel
option is enabled, there is also a sysctl to change the behavior at
runtime (debug.stop_cpus_with_nmi which defaults to enabled). This
includes removing stop_cpus_nmi() and making ipi_nmi_selected() a
private function for i386 and amd64.
- Fix ipi_all(), ipi_all_but_self(), and ipi_self() on i386 and amd64 to
properly handle bitmapped IPIs as well as IPI_STOP IPIs when STOP_NMI is
enabled.
- Fix ipi_nmi_handler() to execute the restart function on the first CPU
that is restarted making use of atomic_readandclear() rather than
assuming that the BSP is always included in the set of restarted CPUs.
Also, the NMI handler didn't clear the function pointer meaning that
subsequent stop and restarts could execute the function again.
- Define a new macro HAVE_STOPPEDPCBS on i386 and amd64 to control the use
of stoppedpcbs[] and always enable it for i386 and amd64 instead of
being dependent on KDB_STOP_NMI. It works fine in both the NMI and
non-NMI cases.
Revision Changes Path
1.264 +47 -12 src/sys/amd64/amd64/mp_machdep.c
1.296 +3 -3 src/sys/amd64/amd64/trap.c
1.46 +1 -1 src/sys/amd64/conf/NOTES
1.85 +2 -3 src/sys/amd64/include/smp.h
1.22 +1 -1 src/sys/conf/options.amd64
1.226 +1 -1 src/sys/conf/options.i386
1.190 +1 -1 src/sys/conf/options.pc98
1.1209 +1 -1 src/sys/i386/conf/NOTES
1.256 +44 -9 src/sys/i386/i386/mp_machdep.c
1.283 +3 -3 src/sys/i386/i386/trap.c
1.83 +2 -3 src/sys/i386/include/smp.h
1.15 +8 -35 src/sys/kern/subr_kdb.c
1.197 +0 -32 src/sys/kern/subr_smp.c
1.65 +1 -1 src/sys/pc98/conf/NOTES
1.85 +0 -3 src/sys/sys/smp.h
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