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xen: add missing definitions for xen grant table which ia64/xen needs

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Add xen handles realted definitions for grant table which ia64/xen
needs.
Pointer argumsnts for ia64/xen hypercall are passed in pseudo physical
address (guest physical address) so that it is required to convert
guest kernel virtual address into pseudo physical address right before
issuing hypercall.
The xen guest handle represents such arguments.
Define necessary handles and helper functions.

Signed-off-by: Isaku Yamahata <[email protected]>
Signed-off-by: Jeremy Fitzhardinge <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
This commit is contained in:
Isaku Yamahata 2008-04-02 10:53:52 -07:00 • committed by Ingo Molnar
commit 87e27cf628
3 changed files with 33 additions and 4 deletions
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2
drivers/xen/grant-table.c
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@ -470,7 +470,7 @@ static int gnttab_map(unsigned int start_idx, unsigned int end_idx)
setup.dom = DOMID_SELF;
setup.nr_frames = nr_gframes;
setup.frame_list = frames;
set_xen_guest_handle(setup.frame_list, frames);
rc = HYPERVISOR_grant_table_op(GNTTABOP_setup_table, &setup, 1);
if (rc == -ENOSYS) {