Displaying 1 result from an estimated 1 matches for "vioapic_irq_positive_edge".
2007 Dec 11
0
[HVM] Fix interrupt routing
...IRQ0 rather
than vlapic timer interrupt, because: 1) is_isa_irq_masked(v, 0) returns
false due to vpic.imr.bit0 = 0; 2) the PIT''s pt->last_plt_gtime is less
than vlapic timer''s -- at least I can see this on my hosts;
However, in pt_update_irq() -> hvm_isa_irq_assert() ->
vioapic_irq_positive_edge(), we do nothing but return at once because
vioapic.redirtbl[2].mask = 1;
Next, in vmx_intr_assist() -> hvm_vcpu_has_pending_irq(), we can''t
inject vPIT interrupt because vlapic_accept_pic_intr() return false
(because vlapic.lvt[LINT0].mask=1, and vlapic_hw_disabled() returns
false), s...