On 8. Dec 2017, at 07:50, Kevin O'Connor kevin@koconnor.net wrote:
On Sun, Nov 26, 2017 at 05:49:53PM +0100, Filippo Sironi wrote:
Signed-off-by: Filippo Sironi sironi@amazon.de
src/fw/paravirt.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/fw/paravirt.c b/src/fw/paravirt.c index 0770c47b12e7..163b70c6473f 100644 --- a/src/fw/paravirt.c +++ b/src/fw/paravirt.c @@ -83,8 +83,8 @@ static void qemu_detect(void) u16 sv = pci_config_readw(0, PCI_SUBSYSTEM_VENDOR_ID); u16 sd = pci_config_readw(0, PCI_SUBSYSTEM_ID);
- 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. However, we're not excluding the option of making it generally available in the future.
Filippo
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