Displaying 6 results from an estimated 6 matches for "acktype_non".
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acktype_none
2006 Apr 19
0
[patch] define and use cpu_test_and_clear() and some type checking fixes
..._CPUS)
diff -r b3ca881c903b xen/arch/x86/irq.c
--- a/xen/arch/x86/irq.c Wed Apr 19 10:26:37 2006 -0400
+++ b/xen/arch/x86/irq.c Wed Apr 19 11:45:07 2006 -0400
@@ -198,7 +198,7 @@ static void __do_IRQ_guest(int vector)
{
d = action->guest[i];
if ( (action->ack_type != ACKTYPE_NONE) &&
- !test_and_set_bit(irq, &d->pirq_mask) )
+ !test_and_set_bit(irq, &d->pirq_mask[0]) )
action->in_flight++;
send_guest_pirq(d, irq);
}
@@ -235,7 +235,7 @@ static void __set_eoi_ready(irq_desc_t *
if ( !(desc-&...
2011 Sep 20
0
[PATCH 4/4] x86: split MSI IRQ chip
...-static unsigned int startup_msi_irq(struct irq_desc *desc)
-{
- unmask_msi_irq(desc);
- return 0;
-}
-
-static void ack_msi_irq(struct irq_desc *desc)
-{
- irq_complete_move(desc);
- move_native_irq(desc);
-
- if ( msi_maskable_irq(desc->msi_desc) )
- ack_APIC_irq(); /* ACKTYPE_NONE */
-}
-
-static void end_msi_irq(struct irq_desc *desc, u8 vector)
-{
- if ( !msi_maskable_irq(desc->msi_desc) )
- ack_APIC_irq(); /* ACKTYPE_EOI */
-}
-
-#define shutdown_msi_irq mask_msi_irq
-
-/*
- * IRQ Chip for MSI PCI/PCI-X/PCI-Express Devices,
- * which implement the MSI or MSI...
2008 Jul 03
13
[PATCH] Handle MSI irq storm
<<handle_msi_irq_storm.patch>> Hi, Keir,
This patch handles MSI irq storm. Unluckily, I have observed this
phenomenon again. This will happen when some kind of MSI-X capable NIC
is assigned to an HVM guest. The basic idea is to mask the interrupt on
receiving the second interrupt and set a timer to unmask after 1ms.
Can you have a look and give some comments on that? Thanks!
Best
2008 Sep 26
2
RE: [Xen-changelog] [xen-unstable] x86: Properly synchronise updates to pirq-to-vector mapping.
...sc = domain_spin_lock_irq_desc(d, irq, NULL);
+ if ( desc == NULL )
+ return;
+
action = (irq_guest_action_t *)desc->action;
-
- spin_lock_irq(&desc->lock);
+ vector = desc - irq_desc;
ASSERT(!test_bit(irq, d->pirq_mask) ||
(action->ack_type != ACKTYPE_NONE));
@@ -418,7 +449,7 @@ int pirq_acktype(struct domain *d, int i
unsigned int vector;
vector = domain_irq_to_vector(d, irq);
- if ( vector == 0 )
+ if ( vector <= 0 )
return ACKTYPE_NONE;
desc = &irq_desc[vector];
@@ -447,13 +478,6 @@ int pirq_acktype(struct d...
2008 Mar 27
21
[PATCH 0/5] Add MSI support to XEN
Hi, Keir,
These patches are rebased version of Yunhong''s original patches,
which were sent out before XEN 3.2 was released. These patches enable
MSI support and limited MSI-X support in XEN. Here is the original
description of the patches from Yunhong''s mail.
The basic idea including:
1) Keep vector global resource owned by xen, while split pirq into
per-domain
2008 Sep 23
9
Xen crash on dom0 shutdown
There is a BUG_ON() at xen/arch/x86/physdev.c:169 which appears to
be dependent upon guest behavior (should close event channel before
un-mapping pirq), rather than on internal hypervisor state. In 2.6.18,
this likely goes unnoticed because pci_device_shutdown() only calls all
the driver shutdown routines. In newer kernels, however, it also calls
pci_msi_shutdown() and pci_msix_shutdown(), which