On 11/04/16 18:18, Jan Beulich wrote:
On 11.04.16 at 16:04, wrote:
>> @@ -5964,6 +5976,10 @@ void destroy_xen_mappings(unsigned long s, unsigned
>> long e)
>> unsigned int i;
>> unsigned long v = s;
>>
>> +/* Set of valid PTE bits which may be altered. */
>> +#define FLAGS_M
>>> On 11.04.16 at 16:04, wrote:
> @@ -5964,6 +5976,10 @@ void destroy_xen_mappings(unsigned long s, unsigned
> long e)
> unsigned int i;
> unsigned long v = s;
>
> +/* Set of valid PTE bits which may be altered. */
> +#define FLAGS_MASK (_PAGE_NX|_PAGE_RW|_PAGE_PRESENT)
> +n
On 11/04/16 15:04, Andrew Cooper wrote:
> To simply change the permissions on existing Xen mappings. The existing
> destroy_xen_mappings() is altered to support a change the PTE permissions.
>
> A new destroy_xen_mappings() is introduced, as the special case of not passing
> _PAGE_PRESENT to modi
To simply change the permissions on existing Xen mappings. The existing
destroy_xen_mappings() is altered to support a change the PTE permissions.
A new destroy_xen_mappings() is introduced, as the special case of not passing
_PAGE_PRESENT to modify_xen_mappings().
As cleanup (and an ideal funct
