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arm-autonomy/xen-devictree: Update dom0_mem default inline with best practices

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Updated default value for XEN_DEVICETREE_DOM0_MEM from "1024M" to
"1024M,max:1024" to match best practice for dom0_mem command line
argument. Documentation also updated to refer to new default value

Issue-Id: SCM-2037
Signed-off-by: Nathan Dunne <Nathan.Dunne@arm.com>
Change-Id: Ifa7e78bf22b024cb7fe4b782f628860ff44860ad
Signed-off-by: Jon Mason <jon.mason@arm.com>
This commit is contained in:
Nathan Dunne
2021-01-28 10:06:40 +00:00
committed by Jon Mason
parent e0c74f3b3b
commit d692df24cd
2 changed files with 5 additions and 4 deletions
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meta-arm-autonomy/documentation/xen-devicetree.md
+4 -3
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@@ -70,9 +70,10 @@ The following parameters are available:
This variable is only used if XEN_DEVICETREE_XEN_BOOTARGS has a value This variable is only used if XEN_DEVICETREE_XEN_BOOTARGS has a value
containing "dom0_mem=${XEN_DEVICETREE_DOM0_MEM}" as the memory assigned to containing "dom0_mem=${XEN_DEVICETREE_DOM0_MEM}" as the memory assigned to
dom0 is defined using Xen boot arguments. dom0 is defined using Xen boot arguments.
This variable is set by default to "1024M", and cannot be empty. This variable is set by default to "1024M,max:1024", and cannot be empty.
The value can also be of the form "1024M,max:1024M", as documented here: The value can simply specify a size, e.g. "1024M", but best practice is to
https://wiki.xenproject.org/wiki/Do%EF%BB%BFm0_Memory_%E2%80%94_Where_It_Has_Not_Gone also provide a max, documented here:
https://wiki.xenproject.org/wiki/Xen_Project_Best_Practices
- XEN_DEVICETREE_DOM0_BOOTARGS: Boot arguments to pass to Dom0 Linux when - XEN_DEVICETREE_DOM0_BOOTARGS: Boot arguments to pass to Dom0 Linux when
booting it. booting it.
meta-arm-autonomy/recipes-extended/xen-devicetree/xen-devicetree.bb
+1 -1
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@@ -19,7 +19,7 @@ DESCRIPTION = "Add entries in DTB for Xen and Dom0"
XEN_DEVICETREE_DEPEND_append = " virtual/kernel:do_deploy" XEN_DEVICETREE_DEPEND_append = " virtual/kernel:do_deploy"
XEN_DEVICETREE_DTBS ?= "${KERNEL_DEVICETREE}" XEN_DEVICETREE_DTBS ?= "${KERNEL_DEVICETREE}"
XEN_DEVICETREE_XEN_BOOTARGS ?= "noreboot dom0_mem=${XEN_DEVICETREE_DOM0_MEM}" XEN_DEVICETREE_XEN_BOOTARGS ?= "noreboot dom0_mem=${XEN_DEVICETREE_DOM0_MEM}"
XEN_DEVICETREE_DOM0_MEM ?= "1024M" XEN_DEVICETREE_DOM0_MEM ?= "1024M,max:1024M"
XEN_DEVICETREE_DOM0_BOOTARGS ?= "console=hvc0 earlycon=xen" XEN_DEVICETREE_DOM0_BOOTARGS ?= "console=hvc0 earlycon=xen"
XEN_DEVICETREE_DOM0_ADDR ?= "0x80080000" XEN_DEVICETREE_DOM0_ADDR ?= "0x80080000"
XEN_DEVICETREE_DOM0_SIZE ?= "0x01000000" XEN_DEVICETREE_DOM0_SIZE ?= "0x01000000"