This leads to an erroneous WARN_ON and possibly other side effects. It
seems to me that even multi-function devices ought to enjoy the
privilege of MSI-X capabilities.
Signed-off-by: Gianni Tedesco <gianni.tedesco@xxxxxxxxxx>
diff -r fc2242ac90e1 xen/arch/x86/msi.c
--- a/xen/arch/x86/msi.c Mon Oct 18 11:31:47 2010 +0100
+++ b/xen/arch/x86/msi.c Mon Oct 18 18:14:22 2010 +0100
@@ -527,7 +527,7 @@ static u64 read_pci_mem_bar(u8 bus, u8 s
u8 limit;
u32 addr;
- switch ( pci_conf_read8(bus, slot, func, PCI_HEADER_TYPE) )
+ switch ( pci_conf_read8(bus, slot, func, PCI_HEADER_TYPE) & 0x7f )
{
case PCI_HEADER_TYPE_NORMAL:
limit = 6;
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