On 7/6/12, Carl-Daniel Hailfinger <c-d.hailfinger.devel.2...@gmx.net> wrote: > Hi Jernej, > > I saw that you sent a pciutils/libpci patch to support your Direct IO > driver on Windows. > flashrom is a GPL'ed utility to read/write flash chips, e.g. the one > storing BIOS/EFI on a mainboard. > Right now, flashrom is quite limited on Windows: It doesn't support > anything which needs MMIO/IOPort access. While it would be possible to > use WinIo, the WinIo license seems to be a bit odd and may be > incompatible with the GPL. Your Direct IO driver has the advantage of > being GPL, but it is missing a key feature needed by flashrom: Mapping > physical memory to the application (similar to MapPhysToLin in WinIo). > flashrom needs uncached mappings of device memory regions, and cached > mappings of RAM regions storing DMI info. I'm not sure whether > NtMapViewOfSection would already be enough for this purpose, or if your > Direct IO driver would have to be extended to offer such functionality. > > Regards, > Carl-Daniel > > _______________________________________________ > flashrom mailing list > flashrom@flashrom.org > http://www.flashrom.org/mailman/listinfo/flashrom >
Hi Carl-Daniel, Is there any update on the Windows driver now? I just checked the possibility to provide memory-mapped access to the MMIO area in Windows Vista/7 and the upcoming Windows 8. However, I found that the programming model both in both versions are at odd with the memory-mapped direct access in Linux. The driver I conceived back then works indeed, but it's a kludge (quick hack) and have possibility to render the system unstable. I'll get back with more info later. But, for now I have to think over the programming model again and how to present it in Linux/Unix-friendly form. Regards, Darmawan -- -------------------------------------------------------------------- -= Human knowledge belongs to the world =- _______________________________________________ flashrom mailing list flashrom@flashrom.org http://www.flashrom.org/mailman/listinfo/flashrom
