Re: QXL from spice-guest-tools-0.3, Code 52 - signing problem?

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I'm surprised (and jealous) you folks didn't have QXL driver signing
problems on Windows 7 64-bit Pro :-)

I found a  RedHat release virtio-win-1.5.3: this updates all the
virtio drivers including virtio serial (BSOD) and QXL (code 52
driver signing). This is a great release as it has fixed all my problems
(and I did observe the BSOD too).
- but there seems to be a relatively  poor synchronisation  of drivers between RedHat, Fedora, and the Spice guest tools :-(

https://rhn.redhat.com/errata/RHBA-2012-1083.html


Cheers
Richard


On Fri, Jan 25, 2013 at 10:50 PM, Xiaofan Chen <xiaofanc@xxxxxxxxx> wrote:
On Fri, Jan 25, 2013 at 10:10 PM, Christophe Fergeau
<cfergeau@xxxxxxxxxx> wrote:
> I expect the virtio drivers and the qxl driver to install with a warning
> on win7 32 bit, and to be rejected on win7 64 bit (because they are non
> WHQL'ed) unless you disable driver signing verification somehow.

No you should not need WHQL for Windows 7 64bit. You need a
valid signing certificate but not WHQL. WHQL driver package
will have no warnings. Non-WHQL but signed driver packages
will generate a warning about publisher but will not get
rejected.

> However, you're not the first one mentioning signature issues on the
> QXL driver. Something may be wrong there, but I'm not sure how to check
> driver signatures by myself :-/

The QXL driver appears to have a valid digital signing certificates
and valid timestamp but I have not verfied it myself (not using spice
myself). You can use WDK's signtool to verify the certificate.

Ref: https://github.com/pbatard/libwdi/wiki/Signed-Driver-Walkthrough

--
Xiaofan
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