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| author |   Juergen Gross <jgross@suse.com> | 2019-06-21 20:47:03 +0200 |
|---|---|---|
| committer | Juergen Gross <jgross@suse.com> | 2019-07-17 08:09:57 +0200 |
| commit | bce5963bcb4f9934faa52be323994511d59fd13c (patch) | |
| tree | f84913849df4fe7b8bd63a712e9a25d5be430567 /include/xen | |
| parent | Merge tag 'for-linus-20190715' of git://git.kernel.dk/linux-block (diff) | |
| download | wireguard-linux-bce5963bcb4f9934faa52be323994511d59fd13c.tar.xz wireguard-linux-bce5963bcb4f9934faa52be323994511d59fd13c.zip | |
xen/events: fix binding user event channels to cpus
When binding an interdomain event channel to a vcpu via
IOCTL_EVTCHN_BIND_INTERDOMAIN not only the event channel needs to be
bound, but the affinity of the associated IRQi must be changed, too.
Otherwise the IRQ and the event channel won't be moved to another vcpu
in case the original vcpu they were bound to is going offline.
Cc: <stable@vger.kernel.org> # 4.13
Fixes: c48f64ab472389df ("xen-evtchn: Bind dyn evtchn:qemu-dm interrupt to next online VCPU")
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'include/xen')
| -rw-r--r-- | include/xen/events.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/xen/events.h b/include/xen/events.h index a48897199975..c0e6a0598397 100644 --- a/include/xen/events.h +++ b/include/xen/events.h @@ -3,6 +3,7 @@ #define _XEN_EVENTS_H #include <linux/interrupt.h> +#include <linux/irq.h> #ifdef CONFIG_PCI_MSI #include <linux/msi.h> #endif @@ -59,7 +60,7 @@ void evtchn_put(unsigned int evtchn); void xen_send_IPI_one(unsigned int cpu, enum ipi_vector vector); void rebind_evtchn_irq(int evtchn, int irq); -int xen_rebind_evtchn_to_cpu(int evtchn, unsigned tcpu); +int xen_set_affinity_evtchn(struct irq_desc *desc, unsigned int tcpu); static inline void notify_remote_via_evtchn(int port) { |