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author | jhb <jhb@FreeBSD.org> | 2009-07-01 17:20:07 +0000 |
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committer | jhb <jhb@FreeBSD.org> | 2009-07-01 17:20:07 +0000 |
commit | 76256698a1223f7daae4d1340f06dfdda9147185 (patch) | |
tree | fb5e23052e350ca2b196f1a06067d0f6cf148b56 /sys/amd64/include/intr_machdep.h | |
parent | 9f2c78b3f9e8fee455c43e6025959a41def8d05c (diff) | |
download | FreeBSD-src-76256698a1223f7daae4d1340f06dfdda9147185.zip FreeBSD-src-76256698a1223f7daae4d1340f06dfdda9147185.tar.gz |
Improve the handling of cpuset with interrupts.
- For x86, change the interrupt source method to assign an interrupt source
to a specific CPU to return an error value instead of void, thus allowing
it to fail.
- If moving an interrupt to a CPU fails due to a lack of IDT vectors in the
destination CPU, fail the request with ENOSPC rather than panicing.
- For MSI interrupts on x86 (but not MSI-X), only allow cpuset to be used
on the first interrupt in a group. Moving the first interrupt in a group
moves the entire group.
- Use the icu_lock to protect intr_next_cpu() on x86 instead of the
intr_table_lock to fix a LOR introduced in the last set of MSI changes.
- Add a new privilege PRIV_SCHED_CPUSET_INTR for using cpuset with
interrupts. Previously, binding an interrupt to a CPU only performed a
privilege check if the interrupt had an interrupt thread. Interrupts
without a thread could be bound by non-root users as a result.
- If an interrupt event's assign_cpu method fails, then restore the original
cpuset mask for the associated interrupt thread.
Approved by: re (kib)
Diffstat (limited to 'sys/amd64/include/intr_machdep.h')
-rw-r--r-- | sys/amd64/include/intr_machdep.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/amd64/include/intr_machdep.h b/sys/amd64/include/intr_machdep.h index 6092e62..634db19 100644 --- a/sys/amd64/include/intr_machdep.h +++ b/sys/amd64/include/intr_machdep.h @@ -93,7 +93,7 @@ struct pic { void (*pic_resume)(struct pic *); int (*pic_config_intr)(struct intsrc *, enum intr_trigger, enum intr_polarity); - void (*pic_assign_cpu)(struct intsrc *, u_int apic_id); + int (*pic_assign_cpu)(struct intsrc *, u_int apic_id); STAILQ_ENTRY(pic) pics; }; |