From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: mx.groups.io; dkim=pass header.i=@infradead.org header.s=bombadil.20170209 header.b=RYlrZFM7; spf=none, err=permanent DNS error (domain: bombadil.srs.infradead.org, ip: 198.137.202.133, mailfrom: batv+5812418dbb86b8c2952d+5748+infradead.org+dwmw2@bombadil.srs.infradead.org) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by groups.io with SMTP; Sun, 19 May 2019 22:40:03 -0700 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Mime-Version:Content-Type:References: In-Reply-To:Date:Cc:To:From:Subject:Message-ID:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=X554Wo8J7Yb/J6erLxbnzb4Ya7dm9IBdricDVuiWcgk=; b=RYlrZFM7ziuv+5NkX9bVnF0HT rV5THvIU9HoJeYF/pfwHvWHoVW1/+uRNq/GDIowz1EJZpoiB2pKohdU56rwxv/Z7wgJlC3hjww+1g 1ynEmhZGY2hr3t20fiumdtTgAywf4iMWxg9xdCJeaQmC3jCeqeaAGdx0Yp/qU5egHQUORzOV/u5b+ wTKHT0Qm1+4KV0R3msULNcR/SLMLg3KsMm+/4PmfSG77i3tP3KGZMw0VxlfOvWRIAxNSx2IPBo/8N MCetX8yzrBi1JcPWHm5kcH2/NYUDVU6NmhF91VadcQUjT+LEQnzWbqQrciXYsM3P8z9QuDz7CY+XD mKYXvL86Q==; Received: from [205.251.233.179] (helo=targeting-na-01-1a-i-b77e8b14.us-east-1.amazon.com) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1hSb1m-00070p-HX; Mon, 20 May 2019 05:40:02 +0000 Message-ID: <005afbebcbda0108aa69c9c41f2e3352a63cacbf.camel@infradead.org> Subject: Re: Reviewer for the possible duplicated CSM components in OvmfPkg From: David Woodhouse To: "Wu, Hao A" , "devel@edk2.groups.io" Cc: Laszlo Ersek , "Ni, Ray" , "Justen, Jordan L" , Ard Biesheuvel Date: Sun, 19 May 2019 22:40:01 -0700 In-Reply-To: References: <99af0c4af27a2a57c99e88d19bc53a3724392f14.camel@infradead.org> X-Mailer: Evolution 3.28.5-0ubuntu0.18.04.1 Mime-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-Groupsio-MsgNum: 41050 Content-Type: multipart/signed; micalg="sha-256"; protocol="application/x-pkcs7-signature"; boundary="=-YL0bbfPC+KQg7EdI2Pdp" --=-YL0bbfPC+KQg7EdI2Pdp Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Mon, 2019-05-20 at 05:32 +0000, Wu, Hao A wrote: > My thought on this is the CSM components in the framework packages are > stable for a period of time. So my guess is that the issue is not directl= y > related to these components. Right. I went back to a SeaBIOS and OVMF from the time I last had this working, and then I tripped over lots of toolchain issues. I ended up having to git-bisect for various different issues at once. ISTR I eventually got to the point where I could build the "last known good" versions with the minimal set of fixes... and still they didn't actually work. I need to revisit that. > Also, if it turns out that there are some missing components left > uncopied, we are able to get them back (from the repo history) and put > them into OvmfPkg then. I can help on that. >=20 > Does this sound good to you? That would be great. Thanks. I don't think there's anything really *missing*. We do get into SeaBIOS as a CSM but SeaBIOS itself then crashes somehow, in a hard-to-debug way. In fact I did all this before we had proper SMM support in OVMF and SeaBIOS, and I should probably revisit it completely. Originally I took the simple approach where SeaBIOS takes over the hardware completely, and returning from CSM to UEFI on a boot failure was not really going to work. But if I move to what I understand is the "normal" CSM model of invoking UEFI services through SMM instead of taking full control, things might be a little saner. --=-YL0bbfPC+KQg7EdI2Pdp Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCCECow ggUcMIIEBKADAgECAhEA4rtJSHkq7AnpxKUY8ZlYZjANBgkqhkiG9w0BAQsFADCBlzELMAkGA1UE BhMCR0IxGzAZBgNVBAgTEkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4GA1UEBxMHU2FsZm9yZDEaMBgG A1UEChMRQ09NT0RPIENBIExpbWl0ZWQxPTA7BgNVBAMTNENPTU9ETyBSU0EgQ2xpZW50IEF1dGhl bnRpY2F0aW9uIGFuZCBTZWN1cmUgRW1haWwgQ0EwHhcNMTkwMTAyMDAwMDAwWhcNMjIwMTAxMjM1 OTU5WjAkMSIwIAYJKoZIhvcNAQkBFhNkd213MkBpbmZyYWRlYWQub3JnMIIBIjANBgkqhkiG9w0B AQEFAAOCAQ8AMIIBCgKCAQEAsv3wObLTCbUA7GJqKj9vHGf+Fa+tpkO+ZRVve9EpNsMsfXhvFpb8 RgL8vD+L133wK6csYoDU7zKiAo92FMUWaY1Hy6HqvVr9oevfTV3xhB5rQO1RHJoAfkvhy+wpjo7Q 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