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| author |   Michael S. Tsirkin <mst@redhat.com> | 2012-05-16 19:03:52 +0300 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2012-05-18 09:46:08 +0200 |
| commit | 2a43195d831997551da93e6b3c22c965e93fe9cc (patch) | |
| tree | b7ad184a43adb4018aab793efda8524b5ba5e280 /arch/x86/kernel/apic/apic_noop.c | |
| parent | x86/apic: Use symbolic APIC_EOI_ACK (diff) | |
| download | linux-dev-2a43195d831997551da93e6b3c22c965e93fe9cc.tar.xz linux-dev-2a43195d831997551da93e6b3c22c965e93fe9cc.zip | |
x86/apic: Add apic->eoi_write() callback
Add eoi_write callback so that kvm can override
eoi accesses without touching the rest of the apic.
As a side-effect, this will enable a micro-optimization
for apics using msr.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Cc: Avi Kivity <avi@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: gleb@redhat.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/0df425d746c49ac2ecc405174df87752869629d2.1337184153.git.mst@redhat.com
[ tidied it up a bit ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/apic/apic_noop.c')
| -rw-r--r-- | arch/x86/kernel/apic/apic_noop.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/apic_noop.c b/arch/x86/kernel/apic/apic_noop.c index 634ae6cdd5c9..a6e4c6e06c08 100644 --- a/arch/x86/kernel/apic/apic_noop.c +++ b/arch/x86/kernel/apic/apic_noop.c @@ -181,6 +181,7 @@ struct apic apic_noop = { .read = noop_apic_read, .write = noop_apic_write, + .eoi_write = noop_apic_write, .icr_read = noop_apic_icr_read, .icr_write = noop_apic_icr_write, .wait_icr_idle = noop_apic_wait_icr_idle, |