Re: [Xen-devel] Question about mmu_update

[Simon Kagstrom <simon.kagstrom@xxxxxx>]

At Tue, 14 Feb 2006 14:53:39 +0100,
Simon Kagstrom wrote:
> ------------------------------------------------------------
> new[NR_GRANT_FRAMES].ptr = phys_to_machine(to_phys(pgdir)) + sizeof(void*) * 
> l2_table_offset(XEN_GNTTAB_START);
> new[NR_GRANT_FRAMES].val = phys_to_machine(pgtab) | (L1_PROT & ~_PAGE_RW);
> 
> BUG_ON(HYPERVISOR_mmu_update(new, 1, NULL, DOMID_SELF) < 0);
> ------------------------------------------------------------

I've also tried to set val to 0, and I still get the same problem:

------------------------------------------------------------
(XEN) DOM7: (file=mm.c, line=352) Could not get page ref for pfn 921c0183
(XEN) DOM7: (file=mm.c, line=2042) Could not get page for normal update
------------------------------------------------------------

I'm puzzled. The pfn given there looks all wrong, and I'm not sure
what is wrong with this code. The page directory is taken directly
from start_info (pt_base). Does anyone see what I do wrong?

// Simon

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