Steve Rutherford 7543a635aa KVM: x86: Add KVM exit for IOAPIC EOIs ...

Adds KVM_EXIT_IOAPIC_EOI which allows the kernel to EOI
level-triggered IOAPIC interrupts.

Uses a per VCPU exit bitmap to decide whether or not the IOAPIC needs
to be informed (which is identical to the EOI_EXIT_BITMAP field used
by modern x86 processors, but can also be used to elide kvm IOAPIC EOI
exits on older processors).

[Note: A prototype using ResampleFDs found that decoupling the EOI
from the VCPU's thread made it possible for the VCPU to not see a
recent EOI after reentering the guest. This does not match real
hardware.]

Compile tested for Intel x86.

Signed-off-by: Steve Rutherford <srutherford@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

2015-10-01 15:06:27 +02:00

..

kvm

KVM: x86: Add KVM exit for IOAPIC EOIs

2015-10-01 15:06:27 +02:00

uml

sched: Rename sched.c as sched/core.c in comments and Documentation

2013-06-19 12:58:42 +02:00

00-INDEX

virtual: Documentation: simplify and generalize paravirt_ops.txt

2015-02-13 17:15:44 +10:30

paravirt_ops.txt

virtual: Documentation: simplify and generalize paravirt_ops.txt

2015-02-13 17:15:44 +10:30