[SeaBIOS] [PATCH] paravirt: Allow both Red Hat and Amazon PCI HB subsystem vendor and device ids

[Stefan Hajnoczi]

On Mon, Jan 8, 2018 at 10:11 AM, Gerd Hoffmann <kraxel at redhat.com> wrote:
>> >> @@ -83,8 +83,8 @@ static void qemu_detect(void)
>
>> >> -    if (sv != 0x1af4 || /* Red Hat, Inc */
>> >> -        sd != 0x1100)   /* Qemu virtual machine */
>> >> +    if (!(sv == 0x1af4 && sd == 0x1100) && /* Red Hat, Inc. QEMU VM */
>> >> +        !(sv == 0x1d0f && sd == 0x1237))   /* Amazon.com, Inc. i440fx VM */
>> >>         return;
>> >
>> > Is the above needed for a generally available VM software or product?
>> > Or is this internal to Amazon?
>> >
>> > -Kevin
>>
>> 1d0f:1237 are the subsystem vendor and device ids of the i440fx emulation
>> in the EC2 machine model, which is what we're using for:
>>
>> * https://aws.amazon.com/ec2/instance-types/c5/
>> * https://aws.amazon.com/ec2/instance-types/m5/
>>
>> Today, the EC2 machine model isn't open source.
>
> So I guess not based on qemu?  Otherwise you would have some GPL issues ...

QEMU is GPLv2 so there is no need to provide source if the
hypervisor/emulator software isn't being distributed.

SeaBIOS is LGPLv3 and its available in guest RAM so that may be a
different story...

Stefan