Le Mardi 12 Septembre 2006 20:37, Hollis Blanchard a écrit : > Hi Tristan, I've just implemented your "inline" handle idea. > > The Xen changes are committed to xenppc-unstable.hg . In Xen, > architectures need to provide: > - XENCOMM_INLINE_FLAG in arch-foo.h > - paddr_to_maddr(). I'm open to alternative names, but a standard > function seems useful outside xencomm. (I wish we had one for Linux.) > - asm/guest_access.h that just #includes xen/xencomm.h > > Once you have IA64-specific implementations for the above, I will submit > the whole thing to xen-devel. (Note that Linux doesn't actually have to > use it right now; it won't break anything.) > > The Linux are committed to linux-ppc-2.6.hg . I think for Linux > architectures just need to supply: > - XENCOMM_INLINE_FLAG in arch-foo.h > - xencomm_vtop() > > I did end up sticking with a separate xencomm_create_inline() function > because inline handles aren't kernel-accessible pointers, yet normal > handles are. It does also simplify the code not to have to deal with > free, as you pointed out. However, notice the problem in > HYPERVISOR_xen_version(). :( > > We still need to figure out how to share > arch/powerpc/platforms/xen/hcall.c . If you have any changes you need > for IA64, please send them to me as individual patches so I can > incrementally merge them into linux-ppc-2.6.hg. (That will make it much > easier to understand than the patches you sent out before.) > > There's no rush; this code is working fine for PowerPC so I won't worry > about IA64 unless/until you have time for it. Hi,
sorry for the late reply. I am just back from holidays. After more work, inline xencomm is not that magic: it doesn't work for modules which are loaded in virtual memory. So I have to use mini xencomm at least for modules. I have have to check performances. If mini xencomm is good compared to inline, we could drop inline. We are really converging! Tristan. _______________________________________________ Xen-ppc-devel mailing list Xen-ppc-devel@lists.xensource.com http://lists.xensource.com/xen-ppc-devel
