From: balrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Sat, 19 Jul 2008 09:18:48 +0000 (+0000)
Subject: Special Mask Mode for i8259 PIC (Sebastian Reichelt).
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=846787113a3c5beb010145c2870ca163c5d21497;p=qemu-xen-3.3-testing.git

Special Mask Mode for i8259 PIC (Sebastian Reichelt).


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4894 c046a42c-6fe2-441c-8c8c-71466251a162
---

diff --git a/hw/i8259.c b/hw/i8259.c
index add63450..750a76ca 100644
--- a/hw/i8259.c
+++ b/hw/i8259.c
@@ -123,6 +123,8 @@ static int pic_get_irq(PicState *s)
        master, the IRQ coming from the slave is not taken into account
        for the priority computation. */
     mask = s->isr;
+    if (s->special_mask)
+        mask &= ~s->imr;
     if (s->special_fully_nested_mode && s == &s->pics_state->pics[0])
         mask &= ~(1 << 2);
     cur_priority = get_priority(s, mask);