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arm/xen: Use xen_xlate_map_ballooned_pages to setup grant table

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Use xen_xlate_map_ballooned_pages to setup grant table. Then it doesn't
rely on DT or ACPI to pass the start address and size of grant table.

Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Julien Grall <julien.grall@arm.com>
Tested-by: Julien Grall <julien.grall@arm.com>
This commit is contained in:
Shannon Zhao 2016-04-07 20:03:21 +08:00 committed by David Vrabel
parent 975fac3c4f
commit 3cf4095d74
1 changed files with 4 additions and 9 deletions
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13
arch/arm/xen/enlighten.c
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@ -282,18 +282,10 @@ static int __init xen_guest_init(void)
{ {
struct xen_add_to_physmap xatp; struct xen_add_to_physmap xatp;
struct shared_info *shared_info_page = NULL; struct shared_info *shared_info_page = NULL;
struct resource res;
phys_addr_t grant_frames;
if (!xen_domain()) if (!xen_domain())
return 0; return 0;
if (of_address_to_resource(xen_node, GRANT_TABLE_PHYSADDR, &res)) {
pr_err("Xen grant table base address not found\n");
return -ENODEV;
}
grant_frames = res.start;
xen_events_irq = irq_of_parse_and_map(xen_node, 0); xen_events_irq = irq_of_parse_and_map(xen_node, 0);
if (!xen_events_irq) { if (!xen_events_irq) {
pr_err("Xen event channel interrupt not found\n"); pr_err("Xen event channel interrupt not found\n");
@ -328,7 +320,10 @@ static int __init xen_guest_init(void)
if (xen_vcpu_info == NULL) if (xen_vcpu_info == NULL)
return -ENOMEM; return -ENOMEM;
if (gnttab_setup_auto_xlat_frames(grant_frames)) { xen_auto_xlat_grant_frames.count = gnttab_max_grant_frames();
if (xen_xlate_map_ballooned_pages(&xen_auto_xlat_grant_frames.pfn,
&xen_auto_xlat_grant_frames.vaddr,
xen_auto_xlat_grant_frames.count)) {
free_percpu(xen_vcpu_info); free_percpu(xen_vcpu_info);
return -ENOMEM; return -ENOMEM;
} }