The emulated e1000 uses legacy interrupts. I'm wondering if someone can
help me understand the mptable (used by FreeBSD to route interrupts and defined
in Intel's MP spec):
Bus: Bus ID Type
0 PCI
1 ISA
I/O APICs: APIC ID Version State Address
0 0x11 usable 0xfec00000
I/O Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN#
INT active-hi conforms 0 31:A 2 10
INT active-hi conforms 0 3:A 2 11
The interrupts associated with the PCI bus where e1000 hangs suggest there
is an APIC with an ID of 2 but there is only one APIC (with an ID of 0).
-----Original Message-----
From: Gerd Hoffmann [mailto:kra...@redhat.com]
Sent: Monday, September 16, 2013 10:15 AM
To: Bret Ketchum
Cc: Qemu-devel@nongnu.org; m...@redhat.com
Subject: Re: [Qemu-devel] Q35 FreeBSD install status
On Mo, 2013-09-16 at 12:57 +0000, Bret Ketchum wrote:
> Tried that - looks like FreeBSD expects to use MSI for AHCI devices which
> does not appear to be supported in q35.
It is supported and linux has no problems using ahci with msi.
Given that e1000 seems to have interrupt problems too I wouldn't be surprised
if both issues have the same root cause. Might be something in the seabios
acpi tables. Or a bug in FreeBSD.
cheers,
Gerd
