[PATCH v3 10/20] xen/xenbus: Use Xen page definition
From: Julien Grall <hidden>
Date: 2015-08-07 17:15:22
Also in:
lkml
Subsystem:
the rest, xen hypervisor interface · Maintainers:
Linus Torvalds, Juergen Gross, Stefano Stabellini
All the ring (xenstore, and PV rings) are always based on the page
granularity of Xen.
Signed-off-by: Julien Grall <redacted>
Reviewed-by: David Vrabel <redacted>
Reviewed-by: Stefano Stabellini <redacted>
---
Cc: Konrad Rzeszutek Wilk <redacted>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Changes in v3:
- Fix errors reported by checkpatch.pl
- s/MFN/GFN base on the new naming
- Add David and Stefano's reviewed-by
Changes in v2:
- Also update the ring mapping function
---
drivers/xen/xenbus/xenbus_client.c | 6 +++---
drivers/xen/xenbus/xenbus_probe.c | 3 ++-
2 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/xen/xenbus/xenbus_client.c b/drivers/xen/xenbus/xenbus_client.c
index daa267a..a2f6276 100644
--- a/drivers/xen/xenbus/xenbus_client.c
+++ b/drivers/xen/xenbus/xenbus_client.c@@ -388,7 +388,7 @@ int xenbus_grant_ring(struct xenbus_device *dev, void *vaddr, } grefs[i] = err; - vaddr = vaddr + PAGE_SIZE; + vaddr = vaddr + XEN_PAGE_SIZE; } return 0;
@@ -555,7 +555,7 @@ static int xenbus_map_ring_valloc_pv(struct xenbus_device *dev, if (!node) return -ENOMEM; - area = alloc_vm_area(PAGE_SIZE * nr_grefs, ptes); + area = alloc_vm_area(XEN_PAGE_SIZE * nr_grefs, ptes); if (!area) { kfree(node); return -ENOMEM;
@@ -750,7 +750,7 @@ static int xenbus_unmap_ring_vfree_pv(struct xenbus_device *dev, void *vaddr) unsigned long addr; memset(&unmap[i], 0, sizeof(unmap[i])); - addr = (unsigned long)vaddr + (PAGE_SIZE * i); + addr = (unsigned long)vaddr + (XEN_PAGE_SIZE * i); unmap[i].host_addr = arbitrary_virt_to_machine( lookup_address(addr, &level)).maddr; unmap[i].dev_bus_addr = 0;
diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c
index 3cbe055..33a31cf 100644
--- a/drivers/xen/xenbus/xenbus_probe.c
+++ b/drivers/xen/xenbus/xenbus_probe.c@@ -802,7 +802,8 @@ static int __init xenbus_init(void) goto out_error; xen_store_gfn = (unsigned long)v; xen_store_interface = - xen_remap(xen_store_gfn << PAGE_SHIFT, PAGE_SIZE); + xen_remap(xen_store_gfn << XEN_PAGE_SHIFT, + XEN_PAGE_SIZE); break; default: pr_warn("Xenstore state unknown\n");
--
2.1.4