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Message-ID: <CAE9FiQXYzcEnagnAZ_agXXSVssAfVD8tBjKh9ox_ajqKG0v27g@mail.gmail.com> Date: Wed, 23 Sep 2015 16:26:56 -0700 From: Yinghai Lu <yinghai@...nel.org> To: "Sean O. Stalley" <sean.stalley@...el.com> Cc: Bjorn Helgaas <bhelgaas@...gle.com>, Rajat Jain <rajatxjain@...il.com>, "Michael S. Tsirkin" <mst@...hat.com>, Rafał Miłecki <zajec5@...il.com>, "gong.chen@...ux.intel.com" <gong.chen@...ux.intel.com>, "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, linux-api@...r.kernel.org Subject: Re: [PATCH v2 0/2] PCI: Add support for PCI Enhanced Allocation "BARs" On Wed, Sep 23, 2015 at 3:27 PM, Sean O. Stalley <sean.stalley@...el.com> wrote: > PCI Enhanced Allocation is a new method of allocating MMIO & IO > resources for PCI devices & bridges. It can be used instead > of the traditional PCI method of using BARs. > > EA entries are hardware-initialized to a fixed address. > Unlike BARs, regions described by EA are cannot be moved. > Because of this, only devices which are permanently connected to > the PCI bus can use EA. A removable PCI card must not use EA. As it is fixed, can you put IORESOURCE_PCI_FIXED in the res->flags? Thanks Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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