On 03/07/2017 01:26 PM, Andrew Cooper wrote:
> On 07/03/17 18:18, Boris Ostrovsky wrote:
Don't we need to pass vaddr down to all routines so that they select
appropriate tables? You seem to always be choosing the first one.
>>> IIUC, we clear whole page table subtree covered by one pgd en
On 07/03/17 18:18, Boris Ostrovsky wrote:
>>> Don't we need to pass vaddr down to all routines so that they select
>>> appropriate tables? You seem to always be choosing the first one.
>> IIUC, we clear whole page table subtree covered by one pgd entry.
>> So, no, there's no need to pass vaddr down
>> Don't we need to pass vaddr down to all routines so that they select
>> appropriate tables? You seem to always be choosing the first one.
> IIUC, we clear whole page table subtree covered by one pgd entry.
> So, no, there's no need to pass vaddr down. Just pointer to page table
> entry is enoug
On Mon, Mar 06, 2017 at 03:48:24PM -0500, Boris Ostrovsky wrote:
>
> > +static int xen_p4d_walk(struct mm_struct *mm, p4d_t *p4d,
> > + int (*func)(struct mm_struct *mm, struct page *, enum pt_level),
> > + bool last, unsigned long limit)
> > +{
> > + int i, nr, flush = 0;
>
> +static int xen_p4d_walk(struct mm_struct *mm, p4d_t *p4d,
> + int (*func)(struct mm_struct *mm, struct page *, enum pt_level),
> + bool last, unsigned long limit)
> +{
> + int i, nr, flush = 0;
> +
> + nr = last ? p4d_index(limit) + 1 : PTRS_PER_P4D;
> + for
Split these helpers few per-level functions and add p4d support.
Signed-off-by: Xiong Zhang
[kirill.shute...@linux.intel.com: split off into separate patch]
Signed-off-by: Kirill A. Shutemov
---
arch/x86/xen/mmu.c | 243 -
arch/x86/xen/mmu.h |
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