[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v2] docs/arm64: update the documention for loading XSM support
Sorry, I forgot to mention the typo in the title: s/documention/documentation/ On 22/04/16 17:40, Julien Grall wrote: (CC Wei for the release-ack) Hi Fu Wei, On 21/04/16 12:07, fu.wei@xxxxxxxxxx wrote:From: Fu Wei <fu.wei@xxxxxxxxxx> This patch updates the documentation for allowing detection of an XSM module that lacks a specific compatible string. This mechanism has been added by the commit ca32012341f3de7d3975407fb963e6028f0d0c8b. Signed-off-by: Fu Wei <fu.wei@xxxxxxxxxx>The new version looks good to me: Acked-by: Julien Grall <julien.grall@xxxxxxx> Can a native speaker (Ian, Konrad, George) double-check the wording)? Wei, this patch only update the doc. I am not sure whether we need your release-ack. Regards,--- v2: Improve the doc, according to the suggestion from Julien Grall. v1: http://lists.xen.org/archives/html/xen-devel/2016-04/msg02070.html The first upstream version submitted in xen-devel mailing list. docs/misc/arm/device-tree/booting.txt | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) diff --git a/docs/misc/arm/device-tree/booting.txt b/docs/misc/arm/device-tree/booting.txt index ad98bf3..254ba77 100644 --- a/docs/misc/arm/device-tree/booting.txt +++ b/docs/misc/arm/device-tree/booting.txt @@ -24,10 +24,24 @@ Each node contains the following properties: string (which must always be present). Xen will assume that the first module which lacks a more - specific compatible string is a "multiboot,kernel" and that - the second such is a "multiboot,ramdisk". Any subsequent - modules which lack a specific compatiblity string will not - receive any special treatment. + specific compatible string is a "multiboot,kernel". + + Xen will check all the modules for the XSM Magic from the second + module that lacks a specific compatible string. According to the + result of the detection: + - if it's a XSM, Xen will assume its compatible string is a + "xen,xsm-policy"; + - if it's not a XSM, for the second module that lacks a specific + compatible string, Xen will assume its compatible string is a + "multiboot,ramdisk"; for the third and subsequent modules those + lacks a specific compatible string will not receive any special + treatment. + This means if the ramdisk module is present and does not have the + compatible string "multiboot,ramdisk", then it must always be the + second module. + Note: This XSM Magic detection behavior was introduced by Xen 4.7. + Xen 4.6 (and downwards) still requires the XSM module to have the + compatible string "xen,xsm-policy". Xen 4.4 supported a different set of legacy compatible strings which remain supported such that systems supporting both 4.4 -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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