[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v5 10/28] xsplice: Implement payload loading
>>> Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> 04/05/16 6:46 PM >>> >> > + if ( mfn_array ) >> > + *mfn_array = mfn; >> > + else >> > + xfree(mfn); >> >> What's this? I certainly assumed this wouldn't be needed anymore >> now. > >I still need the MFNs so I can change the page table attributes once >I've finished copying the ELF. > >I can walk the virtual addresses and gather them from the PTE, >but I figured it would be easier to have them stashed away somewhere? Both alternatives aren't really neat, but I think exposing the MFN list via the vmalloc interface is the uglier variant. I.e. I'd prefer doing it Linux'es way, perhaps even having a specialized sibling to map_pages_to_xen() which only alters attributes without changing the frame numbers. Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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