lkml.org 
[lkml]   [2009]   [May]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 16/17] xen: fix legacy irq setup, make ioapic-less machines work.
    Date
    From: Gerd Hoffmann <kraxel@xeni.home.kraxel.org>

    If the machine has no IO APICs, then just allocate a set of legacy
    interrupts.

    [ Impact: fix Xen compatibility with old machines ]

    Signed-off-by: Gerd Hoffmann <kraxel@xeni.home.kraxel.org>
    Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
    ---
    arch/x86/xen/pci.c | 6 ++++++
    1 files changed, 6 insertions(+), 0 deletions(-)

    diff --git a/arch/x86/xen/pci.c b/arch/x86/xen/pci.c
    index 4b286f1..07b59fe 100644
    --- a/arch/x86/xen/pci.c
    +++ b/arch/x86/xen/pci.c
    @@ -66,6 +66,12 @@ void __init xen_setup_pirqs(void)
    {
    int irq;

    + if (0 == nr_ioapics) {
    + for (irq = 0; irq < NR_IRQS_LEGACY; irq++)
    + xen_allocate_pirq(irq, "xt-pic");
    + return;
    + }
    +
    /* Pre-allocate legacy irqs */
    for (irq = 0; irq < NR_IRQS_LEGACY; irq++) {
    int trigger, polarity;
    --
    1.6.0.6


    \
     
     \ /
      Last update: 2009-05-13 01:35    [W:0.018 / U:31.372 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site