d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

arm64: efi: Map memory IO region as device

Browse Source 
Reviewed by:	andrew
Sponsored by:	Ampere Computing, LLC
This commit is contained in:
manu 2019-07-01 22:11:56 +00:00
parent 9a58963a65
commit 0ee80ab0e2
1 changed files with 2 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
sys/arm64/arm64/efirt_machdep.c
View File

@ -208,20 +208,14 @@ efi_create_1t1_map(struct efi_md *map, int ndesc, int descsz)
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);