From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Woodhouse Subject: Re: [GIT PULL] Intel IOMMU for 4.1 Date: Sun, 26 Apr 2015 18:55:24 +0100 Message-ID: <1430070924.13479.5.camel@infradead.org> References: <1430038266.4833.14.camel@infradead.org> <1430069591.8301.91.camel@redhat.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============8316938014750877210==" Return-path: In-Reply-To: <1430069591.8301.91.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Alex Williamson Cc: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org List-Id: iommu@lists.linux-foundation.org --===============8316938014750877210== Content-Type: multipart/signed; micalg="sha-1"; protocol="application/x-pkcs7-signature"; boundary="=-zBo1zeT5FeKqQQkC4SkU" --=-zBo1zeT5FeKqQQkC4SkU Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Sun, 2015-04-26 at 11:33 -0600, Alex Williamson wrote: > Curious why these weren't posted to the mailing list.=20 Apologies for that. I was thinking of this tree as *only* collecting the stuff for SVM, and had mostly forgotten the bug-fixes. I was going to post the series once I had it all in better shape... and when it became apparent that SVM wasn't going to make it for 4.1 I wasn't actually going to push these early parts that *are* ready at all. But then I started getting badgered about the X2APIC_OPT_OUT nonsense. > This one in particular not only ignores RMRR on IGD, but any PCI=20 > class display device. We may understand why IGD has RMRRs, but we=20 > certainly don't understand enough to ignore RMRRs for other GPUs,=20 > should they exist. If they exist, they'll exist for precisely the same reason =E2=80=94 to let the graphics device continue to render its framebuffer after the IOMMU is turned on. For a discrete card with a discrete video BIOS, as opposed to chipset -integrated stuff, I suspect it's actually much *less* likely that there's any other weirdness going on. --=20 David Woodhouse Open Source Technology Centre David.Woodhouse-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org Intel Corporation --=-zBo1zeT5FeKqQQkC4SkU Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIISxDCCBjQw ggQcoAMCAQICAR4wDQYJKoZIhvcNAQEFBQAwfTELMAkGA1UEBhMCSUwxFjAUBgNVBAoTDVN0YXJ0 Q29tIEx0ZC4xKzApBgNVBAsTIlNlY3VyZSBEaWdpdGFsIENlcnRpZmljYXRlIFNpZ25pbmcxKTAn BgNVBAMTIFN0YXJ0Q29tIENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA3MTAyNDIxMDE1NVoX DTE3MTAyNDIxMDE1NVowgYwxCzAJBgNVBAYTAklMMRYwFAYDVQQKEw1TdGFydENvbSBMdGQuMSsw KQYDVQQLEyJTZWN1cmUgRGlnaXRhbCBDZXJ0aWZpY2F0ZSBTaWduaW5nMTgwNgYDVQQDEy9TdGFy 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