[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-ia64-devel] [Patch] Fix for re-enabling PV-on-HVM on IPF
On Wed, Mar 07, 2007 at 08:55:19AM +0900, Doi.Tsunehisa@xxxxxxxxxxxxxx wrote: > I've thought that this patch is tricky, but I didn't find the > correct way to modify to avoid hypervisor crash issue. Wrong patch is worse than crash. > Currently, without this patch, hypervisor crashes in PV-on-HVM > initialization phase.. > > * at share_info page remapping: success > - called from HYPERVISOR_memory_op in init_xen_info().. > (unmodified_drivers/linux-2.6/platform-pci/platform-pci.c) > * at grant table page remapping: crash > - called from gnttab_init() in init_xen_info() > - call tree in driver code is > gnttab_init() -> gnttab_resume() -> gnttab_map() > -> HYPERVISOR_memory_op > (linux-2.6-xen-sparse/drivers/xen/core/gnttab.c) > - at guest_physmap_add_page() in hypervisor code, The grant table shared pages are owned by the domain so that get_page() shouldn't fail. Why get_page() fails? The c/s 14010:01476c7804b2 of xen-ia64-unstable.hg twists the grant table initialization a little. Does it affect on vt-i domain initialization? -- yamahata _______________________________________________ Xen-ia64-devel mailing list Xen-ia64-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-ia64-devel
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