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| author | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2011-06-23 12:01:58 +0100 |
|---|---|---|
| committer | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2011-06-23 12:01:58 +0100 |
| commit | ee367eff1f837ac6e997c41bcbc0b85fb9fedad2 (patch) | |
| tree | e20d452e07b3b650d6afbd740af4696abb4e5516 | |
| parent | 837e2846531a4b4e561f17e741f8a25c9e0b059c (diff) | |
| download | xen-ee367eff1f837ac6e997c41bcbc0b85fb9fedad2.tar.gz xen-ee367eff1f837ac6e997c41bcbc0b85fb9fedad2.tar.bz2 xen-ee367eff1f837ac6e997c41bcbc0b85fb9fedad2.zip | |
pv-on-hvm: hvm_domain_use_pirq return positive no matter if the evtchn is bound
This patch fixes PV on HVM interrupt remapping with recent Linux
kernels and upstream qemu. hvm_domain_use_pirq should return positive
even if the evtchn is not currently bound. If it doesn't assert_irq
ends up injecting legacy interrupts even after the guest disabled the
irq.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
xen-unstable changeset: 23550:fb5f0febeddc
xen-unstable date: Thu Jun 16 16:17:35 2011 +0100
| -rw-r--r-- | xen/arch/x86/irq.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/xen/arch/x86/irq.c b/xen/arch/x86/irq.c index 9958b3c1c0..ef3cb89027 100644 --- a/xen/arch/x86/irq.c +++ b/xen/arch/x86/irq.c @@ -1869,14 +1869,8 @@ int unmap_domain_pirq_emuirq(struct domain *d, int pirq) int hvm_domain_use_pirq(struct domain *d, int pirq) { - int emuirq; - if ( !is_hvm_domain(d) || pirq < 0 ) return 0; - emuirq = domain_pirq_to_emuirq(d, pirq); - if ( emuirq != IRQ_UNBOUND && d->pirq_to_evtchn[pirq] != 0 ) - return 1; - else - return 0; + return (domain_pirq_to_emuirq(d, pirq) != IRQ_UNBOUND); } |