From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f41.google.com (mail-wr1-f41.google.com [209.85.221.41]) by mx.groups.io with SMTP id smtpd.web12.3653.1574924057515780751 for ; Wed, 27 Nov 2019 22:54:17 -0800 Authentication-Results: mx.groups.io; dkim=pass header.i=@gmail.com header.s=20161025 header.b=RFWy7/DF; spf=pass (domain: gmail.com, ip: 209.85.221.41, mailfrom: vickks.123@gmail.com) Received: by mail-wr1-f41.google.com with SMTP id t2so29643094wrr.1 for ; Wed, 27 Nov 2019 22:54:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=sJpmKSzbZzr7y24nWE4euH6fYpKyzmnHSpPYOsu7Ksc=; b=RFWy7/DFtvQ/bowC+yLNojYFip9s6pHXVhjdvpuCqZeH352gMbYC2M+x0pDp3pLgvi 3KCAzwdpyJAOxTI8ZHgsVIS42hehwFKbpZyiWpVfWbbFxGbRp12edXdoXzSF+qrqmZ0i TxSxbDHJn/VeAp89bjg3P+a4+15LKv3eSfl0sxdoVYzfMXqNCjNSqO5cfYxY+iQZ+bfs a8XAbQ8vIJtOROTnFQ2Q8uVh85CX8aWnBiw9FzjnW1cJ3y8Xx6Pc3UYnphnVWzuuCNdF 54utrKS3DCKKEZJW1IkwwEeWQgLxWxucrd4SY5ldnylLUPv4R5yWPpysVrhT8jOXIVlv YiKg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=sJpmKSzbZzr7y24nWE4euH6fYpKyzmnHSpPYOsu7Ksc=; b=aM4wRoViywxKJoIknAAlpSZ2R0V8SC3ScATZ83U9dot3cNo87SDdb2I9Z0hKxsvQuK pk4wAbKoUXWAXytlBdbcV6knrEVGXDyH3Q8wrB2lRlWj4g99m/zhIUHJb75lIhyyXGjg fNSNYKVji1OYBlNcguMmFBd9+7OzVOUWs/+NrfTCoieRAYo2YXGjAghW3QR9qJMMcjdy V8Ksf051r0SSbXPdV2ryUuqBe8ahpalx2Qy2k/T9oPWEpvxndowBH9lgBgZNJKuIVfAm u/+9sgQRWdHYv5HaT0AJaJV4bapJZGAw8qWNUF0oLp9lfHrdZ6SWvz74YO+WOfsUYdMJ Tx0g== X-Gm-Message-State: APjAAAVGpNziA8gHKTWtOiQ/UGg0a7p9LcUs7yOgHrKtDwU9FFb1ZSHK MOLXwaPPEhrQAES+0lXR63gypJJyVN2kSKRmZv+/1w== X-Google-Smtp-Source: APXvYqynU4FgpcM/9ebpIRnjzpm0/Frxq+6PoYEWzFKAf1uueAkL9yr7ow1fPRTwNqCZeNd6z8IxaUYNQd4oiR0ekAo= X-Received: by 2002:a5d:43c3:: with SMTP id v3mr38343428wrr.324.1574924055606; Wed, 27 Nov 2019 22:54:15 -0800 (PST) MIME-Version: 1.0 From: "vikash kumar" Date: Thu, 28 Nov 2019 12:24:03 +0530 Message-ID: Subject: [edk2-devel] [edk2-platform] UEFI Option Rom not loading on few motherboards To: devel@edk2.groups.io Content-Type: multipart/alternative; boundary="000000000000e1fbbd0598629417" --000000000000e1fbbd0598629417 Content-Type: text/plain; charset="UTF-8" Hi All, I am developing a UEFI Option Rom driver. I found that in few motherboard (ASrock X100 and above, motherboard with AMD processor and MSI PC) Option Rom is not loading. In this case, inbox driver is taking control of the device. I checked PCI trace and found Option Rom has read from Expansion Rom address but not started (Driver entry not called). I tried with updated BIOS also and found same behavior. Please help. Thanks and Regards, Vikash --000000000000e1fbbd0598629417 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Hi All,

=C2=A0

I am developing a UEFI = Option Rom driver. I found that in few motherboard (ASrock X100 and above, motherboard with AMD processor and MSI PC) Optio= n Rom is not loading. In this case, inbox driver is taking control of the d= evice.

I checked PCI trace and found Option Rom has read from Expansion Rom ad= dress but not started (Driver entry not called).

I tried with updated BIOS als= o and found same behavior. Please help.

=C2=A0

Thanks and Regards,

Vikash=C2=A0


--000000000000e1fbbd0598629417--