Author: manu
Date: Mon Jul 1 22:11:56 2019
New Revision: 349588
URL: https://svnweb.freebsd.org/changeset/base/349588
Log:
arm64: efi: Map memory IO region as device
Reviewed by: andrew
Sponsored by: Ampere Computing, LLC
Modified:
head/sys/arm64/arm64/efirt_machdep.c
Modified: head/sys/arm64/arm64/efirt_machdep.c
==============================================================================
--- head/sys/arm64/arm64/efirt_machdep.c Mon Jul 1 22:06:36 2019
(r349587)
+++ head/sys/arm64/arm64/efirt_machdep.c Mon Jul 1 22:11:56 2019
(r349588)
@@ -208,20 +208,14 @@ efi_create_1t1_map(struct efi_md *map, int ndesc, int
mode = VM_MEMATTR_WRITE_THROUGH;
else if ((p->md_attr & EFI_MD_ATTR_WC) != 0)
mode = VM_MEMATTR_WRITE_COMBINING;
- else if ((p->md_attr & EFI_MD_ATTR_UC) != 0)
+ else
mode = VM_MEMATTR_DEVICE;
- else {
- if (bootverbose)
- printf("EFI Runtime entry %d mapping "
- "attributes unsupported\n", i);
- mode = VM_MEMATTR_UNCACHEABLE;
- }
printf("MAP %lx mode %x pages %lu\n", p->md_phys, mode,
p->md_pages);
l3_attr = ATTR_DEFAULT | ATTR_IDX(mode) | ATTR_AP(ATTR_AP_RW) |
L3_PAGE;
- if (mode == VM_MEMATTR_DEVICE)
+ if (mode == VM_MEMATTR_DEVICE || p->md_attr & EFI_MD_ATTR_XP)
l3_attr |= ATTR_UXN | ATTR_PXN;
VM_OBJECT_WLOCK(obj_1t1_pt);
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