From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Liu Subject: [RFC PATCH V5 13/14] xen: introduce xen_event_channel_register_extended Date: Tue, 19 Mar 2013 15:22:07 +0000 Message-ID: <1363706528-27141-14-git-send-email-wei.liu2@citrix.com> References: <1363706528-27141-1-git-send-email-wei.liu2@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1363706528-27141-1-git-send-email-wei.liu2@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xen.org, konrad.wilk@oracle.com Cc: Wei Liu , ian.campbell@citrix.com, jbeulich@suse.com, david.vrabel@citrix.com List-Id: xen-devel@lists.xenproject.org Signed-off-by: Wei Liu --- drivers/xen/events.c | 26 ++++++++++++++++++++++++++ include/xen/events.h | 6 ++++++ 2 files changed, 32 insertions(+) diff --git a/drivers/xen/events.c b/drivers/xen/events.c index 6bb9a47..6f21f27 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -2265,6 +2265,32 @@ static int xen_event_channel_register_3level(void) return rc; } +int xen_event_channel_register_extended(uint64_t abi) +{ + int rc = -EINVAL; + + switch (abi) { + case EVTCHN_EXTENDED_L3: + rc = xen_event_channel_register_3level(); + if (rc == 0) + printk(KERN_INFO + "Register 3-level event channel succeed.\n"); + else + printk(KERN_INFO + "Register 3-level event channel failed: %d\n", + rc); + break; + default: + printk(KERN_EMERG + "Trying to register unsupported event channel ABI %llx\n", + abi); + BUG(); + } + + return rc; +} + + const struct evtchn_ops evtchn_l2_ops = { .unmask = __unmask_local_port_l2, .debug_interrupt = xen_debug_interrupt_l2, diff --git a/include/xen/events.h b/include/xen/events.h index 49d54ac..a6a6024 100644 --- a/include/xen/events.h +++ b/include/xen/events.h @@ -117,4 +117,10 @@ extern uint64_t xen_evtchn_extended; /* Query hypervisor for supported / enabled extended event channel ABIs. */ uint64_t xen_event_channel_query_extended_abis(void); +/* Set extended event channel to "abi". */ +void xen_set_event_channel_extended(uint64_t abi); + +/* Register extended event channel. */ +int xen_event_channel_register_extended(uint64_t abi); + #endif /* _XEN_EVENTS_H */ -- 1.7.10.4