From 796b445b0080452f93f4a98af2d4fe8fea15ebf4 Mon Sep 17 00:00:00 2001 From: Keir Fraser Date: Wed, 16 Apr 2008 10:06:19 +0100 Subject: minios: call do_hypervisor_callback directly from force_evtchn_callback instead of unnecessarily going through the hypervisor. Signed-off-by: Samuel Thibault --- extras/mini-os/hypervisor.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'extras/mini-os/hypervisor.c') diff --git a/extras/mini-os/hypervisor.c b/extras/mini-os/hypervisor.c index e84d34ccaf..2840d789ef 100644 --- a/extras/mini-os/hypervisor.c +++ b/extras/mini-os/hypervisor.c @@ -66,6 +66,21 @@ void do_hypervisor_callback(struct pt_regs *regs) in_callback = 0; } +void force_evtchn_callback(void) +{ + vcpu_info_t *vcpu; + vcpu = &HYPERVISOR_shared_info->vcpu_info[smp_processor_id()]; + int save = vcpu->evtchn_upcall_mask; + + while (vcpu->evtchn_upcall_pending) { + vcpu->evtchn_upcall_mask = 1; + barrier(); + do_hypervisor_callback(NULL); + barrier(); + vcpu->evtchn_upcall_mask = save; + barrier(); + }; +} inline void mask_evtchn(u32 port) { -- cgit v1.2.3