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| author | Keir Fraser <keir.fraser@citrix.com> | 2009-11-23 06:58:19 +0000 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2009-11-23 06:58:19 +0000 |
| commit | 3cfaf63e09773f7046e35b9287a94323840fcacf (patch) | |
| tree | 76bfa9dccf98f8a18ed1f1ffd824918684ed8e78 /tools/libxl/libxl_internal.c | |
| parent | f38d55cb34b5c5853bb5b5c21537df6c68071876 (diff) | |
| download | xen-3cfaf63e09773f7046e35b9287a94323840fcacf.tar.gz xen-3cfaf63e09773f7046e35b9287a94323840fcacf.tar.bz2 xen-3cfaf63e09773f7046e35b9287a94323840fcacf.zip | |
x86: enable directed EOI
This patch enables directed EOI on latest processor. With this, the
broadcast of EOI would be suppressed upon LAPIC EOI, so VMM is
required to perform a directed EOI to the IOxAPIC generating the
interrupt by writting to its EOI register.(Pls. refer SDM 3A 10.5.5)
This is useful for ioapic_ack_old to avoid the spurious interrupt
storm, which is the reason why ioapic_ack_new is used.
Signed-Off-By: Zhai Edwin <edwin.zhai@intel.com>
Diffstat (limited to 'tools/libxl/libxl_internal.c')
0 files changed, 0 insertions, 0 deletions