On Mon, Feb 02, 2009 at 10:11:13PM +0200, Pasi Kärkkäinen wrote:
> On Mon, Feb 02, 2009 at 09:22:17PM +0200, Pasi Kärkkäinen wrote:
> > On Mon, Feb 02, 2009 at 10:42:30AM +0200, Pasi Kärkkäinen wrote:
> > > On Fri, Jan 30, 2009 at 10:50:51AM -0800, Jeremy Fitzhardinge wrote:
> > > > Ian Campbell wrote:
> > > > >On Fri, 2009-01-30 at 18:12 +0000, Ian Campbell wrote:
> > > > >
> > > > >>Possibly the correct fix might be to use xen_register_gsi() here
> > > > >>instead of xen_allocate_pirq() and get rid of the special case for IRQ
> > > > >>14 and 15 in xen_pci_pirq_enable(). Maybe only 14 and 15 need this
> > > > >>special treatment.
> > > > >>
> > > > >
> > > > >FWIW this also Works For Me.
> > > > >
> > > >
> > > > OK. I'd noticed that the native code just sets up all the legacy
> > > > interrupts at once. I guess we should follow the lead to avoid these
> > > > kinds of init order problems.
> > > >
> > >
> > > OK.
> > >
> > > I've been busy, and haven't yet had time to try the patch.
> > >
> > > Hopefully I can try it later today!
> > >
> >
> > And now I tried the latest bits.
> >
> > I also applied Ian's legacy irq fix/patch.
> >
> > bootlog:
> > http://pasik.reaktio.net/xen/pv_ops-dom0-debug/pv_ops-dom0-bootlog-8-xen331-linux-2.6.29-rc3.txt
> >
> > Now my (IDE) disk is detected, but it ata_piix still seems to fail..
> >
> > I guess I'll compile new kernel again with libata debug enabled..
> >
>
> I enabled the following in include/linux/libata.h:
>
> #define ATA_DEBUG
> #define ATA_VERBOSE_DEBUG
> #define ATA_IRQ_TRAP
>
> And here's dom0 bootlog with those debugging options enabled:
> http://pasik.reaktio.net/xen/pv_ops-dom0-debug/pv_ops-dom0-bootlog-9-xen331-linux-2.6.29-rc3-atadebug.txt
>
> Is there something you'd like me to try/test?
>
Hmm.. I was using this patch, which looks different from what was committed
to the patches.hg repository 2 hours ago..
--- a/arch/x86/xen/pci.c Fri Jan 30 17:39:54 2009 +0000
+++ b/arch/x86/xen/pci.c Fri Jan 30 18:16:34 2009 +0000
@@ -75,15 +75,6 @@
printk(KERN_INFO "xen: PCI device %s pin %d -> irq %d\n",
pci_name(dev), dev->pin, irq);
- } else if (((dev->class >> 8) == PCI_CLASS_STORAGE_IDE) &&
- (dev->class & 0x05) == 0) {
- /* Legacy IDE devices have hard-coded irq 14/15 */
- printk(KERN_INFO "xen: %s: legacy IDE\n", pci_name(dev));
-
- xen_register_gsi(14, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW);
- xen_register_gsi(15, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW);
-
- rc = 0;
} else {
printk(KERN_INFO "xen: irq enable for %s failed: rc=%d pin=%d
irq=%d\n",
pci_name(dev), rc, dev->pin, dev->irq);
@@ -133,4 +124,6 @@
/* Blerk. */
acpi_gbl_FADT.sci_interrupt = irq;
#endif
+ xen_register_gsi(14, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW);
+ xen_register_gsi(15, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW);
}
-- Pasi
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