Displaying 2 results from an estimated 2 matches for "callback_irq".
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2006 Nov 30
4
evtchn_upcall_mask for PV-on-HVM
We seem to find an interesting bug, but not for sure.
Each time before xen returns to hvm domain, it checks
local_events_need_delivery to see whether any events pending and
if yes, inject event by callback_irq into the virtual interrupt
controller.
However, the interesting point is, we never found any place, either in
xen or in PV drivers, to clear evtchn_upcall_mask at any time. The
initial value of evtchn_upcall_mask is 1 which makes
local_events_need_delivery always return 0.
One possible reason...
2005 Sep 05
0
[PATCH][4/6] Add to virtual device operations
...age: set l1 page table entry\n");
+
+ return 0;
+}
+
+asmlinkage unsigned long do_virtual_device_op(unsigned long op,
+ unsigned long arg1,
+ unsigned arg2)
+{
+ switch (op)
+ {
+ case SET_CALLBACK_IRQ:
+ {
+ if(arg1)
+ current->domain->arch.vmx_platform.callback_irq = arg1;
+ else
+ current->domain->arch.vmx_platform.callback_irq = 0;
+ return 0;
+ }
+ case SET_SHARE_PARAM_MAP:
+ {
+...