[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Re: Improving hvm IO performance by using self IO emulator (YA io-emu?)
Alan wrote: But it isn't supported by older kernels and most versions of Windows. ALinux 2.4.x AHCI drivers exist. Windows 95/98 are lacking them as is NT that much is true, but Win2K and later support AHCI. AHCI is also very nice from a virtualisation point of view as you get commands in queues and you can batch them up sensibly. For older windows there is the ADMA interface which is saner to emulate than SFF but not very sane.This discussion is independent of Xen. It's equally applicable to KVM and QEMU so please don't assume this has anything to do with Xen's merge status.Don't even get me started on qemu. The qemu "emulation" of ATAPI is a good reason to use anything else as an interface. Feel free to submit patches. Regards, Anthony Liguori Alan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |