search for: __pci_ioport_map

...signed long flags = pci_resource_flags(dev, bar); - if (!len || !start) + if (len <= offset || !start) + return NULL; + len -= offset; + start += offset; + if (len < minlen) return NULL; if (maxlen && len > maxlen) len = maxlen; if (flags & IORESOURCE_IO) return __pci_ioport_map(dev, start, len); if (flags & IORESOURCE_MEM) { - if (flags & IORESOURCE_CACHEABLE) + if (!force_nocache && (flags & IORESOURCE_CACHEABLE)) return ioremap(start, len); return ioremap_nocache(start, len); } @@ -44,5 +58,25 @@ void __iomem *pci_iomap(struct pci_dev *d...

...signed long flags = pci_resource_flags(dev, bar); - if (!len || !start) + if (len <= offset || !start) + return NULL; + len -= offset; + start += offset; + if (len < minlen) return NULL; if (maxlen && len > maxlen) len = maxlen; if (flags & IORESOURCE_IO) return __pci_ioport_map(dev, start, len); if (flags & IORESOURCE_MEM) { - if (flags & IORESOURCE_CACHEABLE) + if (!force_nocache && (flags & IORESOURCE_CACHEABLE)) return ioremap(start, len); return ioremap_nocache(start, len); } @@ -44,5 +58,25 @@ void __iomem *pci_iomap(struct pci_dev *d...

Based on Rusty's patches. Coding style and funny jokes are his. Bugs and a star wars reference (should be easy to spot) are mine. Untested, but useful as basis for beginning the qemu work. TODO: = simplify probing: use a common probe function, probe with modern driver first, if that fails - probe with legacy driver. BUGS: ATM legacy driver can win and drive a transitional device

Based on Rusty's patches. Coding style and funny jokes are his. Bugs and a star wars reference (should be easy to spot) are mine. Untested, but useful as basis for beginning the qemu work. TODO: = simplify probing: use a common probe function, probe with modern driver first, if that fails - probe with legacy driver. BUGS: ATM legacy driver can win and drive a transitional device

I've renewed this again, with some comments from HPA. I've tried to keep the new patches separate, so you can see the changes since we last discussed this (and so it's easy to back it out if we decide it's insane). I haven't even looked at the QEMU side so this is completely untested. Comments gratefully received! Rusty. Michael S Tsirkin (1): pci: add pci_iomap_range

I've renewed this again, with some comments from HPA. I've tried to keep the new patches separate, so you can see the changes since we last discussed this (and so it's easy to back it out if we decide it's insane). I haven't even looked at the QEMU side so this is completely untested. Comments gratefully received! Rusty. Michael S Tsirkin (1): pci: add pci_iomap_range