> -----Original Message----- > From: Jon Masters [mailto:jcm@xxxxxxxxxx] > Sent: 22 December 2015 16:45 > To: Gabriele Paoloni; Arnd Bergmann > Cc: Tomasz Nowicki; bhelgaas@xxxxxxxxxx; will.deacon@xxxxxxx; > catalin.marinas@xxxxxxx; rjw@xxxxxxxxxxxxx; hanjun.guo@xxxxxxxxxx; > Lorenzo.Pieralisi@xxxxxxx; okaya@xxxxxxxxxxxxxx; > jiang.liu@xxxxxxxxxxxxxxx; Stefano.Stabellini@xxxxxxxxxxxxx; > robert.richter@xxxxxxxxxxxxxxxxxx; mw@xxxxxxxxxxxx; Liviu.Dudau@xxxxxxx; > ddaney@xxxxxxxxxxxxxxxxxx; tglx@xxxxxxxxxxxxx; Wangyijing; > Suravee.Suthikulpanit@xxxxxxx; msalter@xxxxxxxxxx; linux- > pci@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux- > acpi@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; linaro- > acpi@xxxxxxxxxxxxxxxx; jchandra@xxxxxxxxxxxx > Subject: Re: [PATCH V2 22/23] pci, acpi: Match PCI config space > accessors against platfrom specific quirks. > > On 12/22/2015 11:36 AM, Jon Masters wrote: > > On 12/22/2015 04:29 AM, Gabriele Paoloni wrote: > >> Hi Jon, thanks for replying > >> > >>> -----Original Message----- > >>> From: Jon Masters [mailto:jcm@xxxxxxxxxx] > >>> Sent: 21 December 2015 23:11 > >>> To: Arnd Bergmann > >>> Cc: Gabriele Paoloni; Tomasz Nowicki; bhelgaas@xxxxxxxxxx; > >>> will.deacon@xxxxxxx; catalin.marinas@xxxxxxx; rjw@xxxxxxxxxxxxx; > >>> hanjun.guo@xxxxxxxxxx; Lorenzo.Pieralisi@xxxxxxx; > >>> okaya@xxxxxxxxxxxxxx; jiang.liu@xxxxxxxxxxxxxxx; > >>> Stefano.Stabellini@xxxxxxxxxxxxx; robert.richter@xxxxxxxxxxxxxxxxxx; > >>> mw@xxxxxxxxxxxx; Liviu.Dudau@xxxxxxx; ddaney@xxxxxxxxxxxxxxxxxx; > >>> tglx@xxxxxxxxxxxxx; Wangyijing; Suravee.Suthikulpanit@xxxxxxx; > >>> msalter@xxxxxxxxxx; linux- pci@xxxxxxxxxxxxxxx; > >>> linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux- acpi@xxxxxxxxxxxxxxx; > >>> linux-kernel@xxxxxxxxxxxxxxx; linaro- acpi@xxxxxxxxxxxxxxxx; > >>> jchandra@xxxxxxxxxxxx > >>> Subject: Re: [PATCH V2 22/23] pci, acpi: Match PCI config space > >>> accessors against platfrom specific quirks. > >>> > >>> Sorry for top-posting. A quick note that SMBIOS3 is required by > SBBR > >>> so it can be presumed that compliant platforms will provide quirks > via DMI. > >> > >> Ok so you completely clarified my question 1). Many Thanks for this > > > > No problem. One of the (many) reasons I pushed for requiring > > SMBIOS/DMI in SBBR (I was lead author of one of the early drafts of > > that document) was to make the experience ultimately equivalent > across architectures. > > We already know how to do quirks and handle platform deviations, and > > the major Operating System vendors did not want to reinvent the wheel. > > Additional: it is clear that more prescription is required to get the > vendors onto the bandwagon that we have with other architectures (e.g. > that other one). So there will be a Red Hat "ARM server whitepaper" > coming in the early new year that will include the kind of "server 101" > material we want to make sure people know. Things like making sure you > implement and test PCIe correctly, handle backward compatibility (you > will build hardware in the future that runs my existing OS release), > design the hardware to allow for workarounds later, etc. I expect some > other Operating System vendors to be involved in reviewing that. > > Ultimately my objective is to make this whole thing dull and boring. > You will get RHEL(SA)/upstream kernels and it will either boot or it > will not. If it does not boot, vendor X screwed up their hardware. We > know this story, it's been this way for over a decade already, and that > is exactly how it is going to be with ARM servers shortly. Ok got it. Many Thanks Gab > > Jon. -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
