From: Sheng Yang <sheng@linux.intel.com>
To: Keir Fraser <keir.fraser@eu.citrix.com>,
Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Jun Nakajima <jun.nakajima@intel.com>,
Eddie Dong <eddie.dong@intel.com>,
linux-kernel@vger.kernel.org,
xen-devel <xen-devel@lists.xensource.com>,
Sheng Yang <sheng@linux.intel.com>
Subject: [RFC][PATCH 08/10] x86: Don't ack_APIC_irq() if lapic is disabled in GENERIC_INTERRUPT_VECTOR handler
Date: Wed, 16 Sep 2009 16:42:29 +0800 [thread overview]
Message-ID: <1253090551-7969-9-git-send-email-sheng@linux.intel.com> (raw)
In-Reply-To: <1253090551-7969-1-git-send-email-sheng@linux.intel.com>
Xen hybrid guest don't use lapic, but smp_generic_interrupt() assume all it's
caller using lapic.
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
---
arch/x86/kernel/irq.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index c3fe010..a887d25 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -236,7 +236,8 @@ void smp_generic_interrupt(struct pt_regs *regs)
{
struct pt_regs *old_regs = set_irq_regs(regs);
- ack_APIC_irq();
+ if (!disable_apic)
+ ack_APIC_irq();
exit_idle();
--
1.5.4.5
next prev parent reply other threads:[~2009-09-16 8:43 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-16 8:42 [RFC][PATCH 0/10] Xen Hybrid extension support Sheng Yang
2009-09-16 8:42 ` [RFC][PATCH 01/10] xen/pvhvm: add support for hvm_op Sheng Yang
2009-09-16 8:42 ` [RFC][PATCH 02/10] xen/hybrid: Import cpuid.h from Xen Sheng Yang
2009-09-16 8:42 ` [RFC][PATCH 03/10] xen/hybrid: Xen Hybrid Extension initialization Sheng Yang
2009-09-16 20:24 ` [Xen-devel] " Jeremy Fitzhardinge
2009-09-17 6:22 ` Keir Fraser
2009-09-17 16:46 ` Jeremy Fitzhardinge
2009-09-16 8:42 ` [RFC][PATCH 04/10] xen/hybrid: Modify pv_init_ops and xen_info Sheng Yang
2009-09-16 8:42 ` [RFC][PATCH 05/10] xen/hybrid: Add PV halt support Sheng Yang
2009-09-16 8:42 ` [RFC][PATCH 06/10] xen/hybrid: Add shared_info page for xen Sheng Yang
2009-09-16 8:42 ` [RFC][PATCH 07/10] xen/hybrid: Add PV timer support Sheng Yang
2009-09-16 20:25 ` [Xen-devel] " Jeremy Fitzhardinge
2009-09-17 5:54 ` Sheng Yang
2009-09-16 8:42 ` Sheng Yang [this message]
2009-09-16 8:58 ` [RFC][PATCH 08/10] x86: Don't ack_APIC_irq() if lapic is disabled in GENERIC_INTERRUPT_VECTOR handler Cyrill Gorcunov
2009-09-16 9:03 ` Cyrill Gorcunov
2009-09-16 9:37 ` Cyrill Gorcunov
2009-09-17 3:54 ` Sheng Yang
2009-09-16 8:42 ` [RFC][PATCH 09/10] xen/hybrid: Make event channel work with QEmu emulated devices Sheng Yang
2009-09-16 20:35 ` [Xen-devel] " Jeremy Fitzhardinge
2009-09-17 5:58 ` Sheng Yang
2009-09-16 8:42 ` [RFC][PATCH 10/10] xen/hybrid: Enable grant table and xenbus Sheng Yang
2009-09-16 13:31 ` [Xen-devel] [RFC][PATCH 0/10] Xen Hybrid extension support Konrad Rzeszutek Wilk
2009-09-17 8:59 ` Sheng Yang
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