Re: [Linaro-uefi] [Xen-devel] [PATCH] xen/arm64: check XSM Magic and Signature from the second unknown module.

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On 18.03.16 at 08:41, fu.wei@linaro.org wrote:

--- a/xen/arch/arm/bootfdt.c +++ b/xen/arch/arm/bootfdt.c @@ -163,6 +163,36 @@ static void __init process_memory_node(const void *fdt, int node, } } +static bool __init check_xsm_signature(const void *fdt, int node,

•                                   const char *name,
  

•                                   u32 address_cells, u32 size_cells)
  

+{

• uint32_t selinux_magic = 0xf97cff8c;

So this would be the 3rd instance of this literal number in the source base. I would have wanted to suggest using one of the two constants we already have, but I don't know which one to pick.

Daniel - why do we have both XSM_MAGIC and FLASK_MAGIC?

Jan