[Lguest] [PATCH v2 2/3] lguest: Physical Address Extension support
Rusty Russell
rusty at rustcorp.com.au
Mon Oct 20 14:44:36 EST 2008
On Monday 29 September 2008 14:40:07 Matias Zabaljauregui wrote:
> This patch adds Physical Address Extension support to lguest.
And this was basically flawless. Nice work!
> if (!(pgd_flags(gpgd) & _PAGE_PRESENT))
> return 0;
>
> /* Now look at the matching shadow entry. */
> spgd = spgd_addr(cpu, cpu->cpu_pgd, vaddr);
> +
> if (!(pgd_flags(*spgd) & _PAGE_PRESENT)) {
> /* No shadow entry: allocate a new shadow PTE page. */
> unsigned long ptepage = get_zeroed_page(GFP_KERNEL);
I did remove this whitespace change noise.
Thanks,
Rusty.
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