diff options
| author | Xenia Ragiadakou | 2022-06-19 15:43:16 +0300 |
|---|---|---|
| committer | Stefano Stabellini | 2022-06-21 17:13:10 -0700 |
| commit | d7ed86141dfed993c15bc0d81dce0426169a176f (patch) | |
| tree | a7229f1f6ff180574e120e59d755da8f51d7efac /scripts/uboot-script-gen | |
| parent | aac7d95c2ebce1e2b42e9a5add1cf24f49aa5757 (diff) | |
uboot-script-gen: Enable direct mapping of statically allocated memory
Direct mapping for dom0less VMs is disabled by default in XEN and can be
enabled through the 'direct-map' property.
Add a new config parameter DOMU_DIRECT_MAP to be able to enable or disable
direct mapping, i.e set to 1 for enabling and to 0 for disabling.
This parameter is optional. Direct mapping is enabled by default for all
dom0less VMs with static allocation.
The property 'direct-map' is a boolean property. Boolean properties are true
if present and false if missing.
Add a new data_type 'bool' in function dt_set() to setup a boolean property.
Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Diffstat (limited to 'scripts/uboot-script-gen')
| -rwxr-xr-x | scripts/uboot-script-gen | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/scripts/uboot-script-gen b/scripts/uboot-script-gen index bdc8a6b..e85c6ec 100755 --- a/scripts/uboot-script-gen +++ b/scripts/uboot-script-gen @@ -27,6 +27,7 @@ function dt_mknode() # hex # str # str_a +# bool function dt_set() { local path=$1 @@ -49,6 +50,12 @@ function dt_set() array+=" \"$element\"" done echo "fdt set $path $var $array" >> $UBOOT_SOURCE + elif test $data_type = "bool" + then + if test "$data" -eq 1 + then + echo "fdt set $path $var" >> $UBOOT_SOURCE + fi else echo "fdt set $path $var \"$data\"" >> $UBOOT_SOURCE fi @@ -65,6 +72,12 @@ function dt_set() elif test $data_type = "str_a" then fdtput $FDTEDIT -p -t s $path $var $data + elif test $data_type = "bool" + then + if test "$data" -eq 1 + then + fdtput $FDTEDIT -p $path $var + fi else fdtput $FDTEDIT -p -t s $path $var "$data" fi @@ -206,6 +219,7 @@ function xen_device_tree_editing() if test "${DOMU_STATIC_MEM[$i]}" then add_device_tree_static_mem "/chosen/domU$i" "${DOMU_STATIC_MEM[$i]}" + dt_set "/chosen/domU$i" "direct-map" "bool" "${DOMU_DIRECT_MAP[$i]}" fi dt_set "/chosen/domU$i" "vpl011" "hex" "0x1" if test "$DOM0_KERNEL" @@ -470,6 +484,10 @@ function xen_config() then DOMU_CMD[$i]="console=ttyAMA0" fi + if test -z "${DOMU_DIRECT_MAP[$i]}" + then + DOMU_DIRECT_MAP[$i]=1 + fi i=$(( $i + 1 )) done } |