diff mbox series

[06/16] xen/arm32: mm: Re-implement setup_xenheap_mappings() using map_pages_to_xen()

Message ID 20220520120937.28925-7-julien@xen.org (mailing list archive)
State New, archived
Headers show
Series xen/arm: mm: Remove open-coding mappings | expand

Commit Message

Julien Grall May 20, 2022, 12:09 p.m. UTC 
From: Julien Grall <jgrall@amazon.com>

Now that map_pages_to_xen() has been extended to support 2MB mappings,
we can replace the create_mappings() call by map_pages_to_xen() call.

Signed-off-by: Julien Grall <jgrall@amazon.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>

---
    Changes in v4:
        - Add Stefano's reviewed-by

    Changes in v3:
        - Fix build when CONFIG_DEBUG=y

    Changes in v2:
        - New patch
---
 xen/arch/arm/mm.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c
index 03f970e4d10b..47c2111c36a4 100644
--- a/xen/arch/arm/mm.c
+++ b/xen/arch/arm/mm.c
@@ -825,7 +825,12 @@  void mmu_init_secondary_cpu(void)
 void __init setup_xenheap_mappings(unsigned long base_mfn,
                                    unsigned long nr_mfns)
 {
-    create_mappings(xen_second, XENHEAP_VIRT_START, base_mfn, nr_mfns, MB(32));
+    int rc;
+
+    rc = map_pages_to_xen(XENHEAP_VIRT_START, _mfn(base_mfn), nr_mfns,
+                          PAGE_HYPERVISOR_RW | _PAGE_BLOCK);
+    if ( rc )
+        panic("Unable to setup the xenheap mappings.\n");
 
     /* Record where the xenheap is, for translation routines. */
     xenheap_virt_end = XENHEAP_VIRT_START + nr_mfns * PAGE_SIZE;