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

Add FDT reservations for memory areas used by OPAL or RTAS runtime firmware.

Browse Source 
This allows a kexec'ed kernel to boot multiuser under PHYP.
This commit is contained in:
Nathan Whitehorn 2015-01-31 19:18:09 +00:00
parent 0fa2250548
commit 79215b4a3d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=277991
1 changed files with 25 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
sys/boot/powerpc/kboot/kbootfdt.c
View File

@ -110,12 +110,32 @@ fdt_linux_fixups(void *fdtp)
*/
offset = fdt_path_offset(fdtp, "/memory@0");
if (offset > 0) {
if (offset > 0)
fdt_delprop(fdtp, offset, "available");
/*
* XXX: add real available properties to reflect RTAS, etc.
* reservations?
*/
/*
* Add reservations for OPAL and RTAS state if present
*/
offset = fdt_path_offset(fdtp, "/ibm,opal");
if (offset > 0) {
uint64_t *base, *size;
base = fdt_getprop(fdtp, offset, "opal-base-address",
&len);
size = fdt_getprop(fdtp, offset, "opal-runtime-size",
&len);
if (base != NULL && size != NULL)
fdt_add_mem_rsv(fdtp, fdt64_to_cpu(*base),
fdt64_to_cpu(*size));
}
offset = fdt_path_offset(fdtp, "/rtas");
if (offset > 0) {
uint32_t *base, *size;
base = fdt_getprop(fdtp, offset, "linux,rtas-base", &len);
size = fdt_getprop(fdtp, offset, "rtas-size", &len);
if (base != NULL && size != NULL)
fdt_add_mem_rsv(fdtp, fdt32_to_cpu(*base),
fdt32_to_cpu(*size));
}
/*