[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 2/4] xen/public: arm: Rework __guest_handle_param*
Hi Stefano, On 02/11/15 15:19, Stefano Stabellini wrote: > On Fri, 30 Oct 2015, Julien Grall wrote: >> __guest_handle_param is used to represent a guest pointer stored pass as >> an hypercall parameters. They are the same size as the native register >> for the architecture. It will be 32-bit on ARM32 and 64-bit on ARM64. >> >> As the __guest_handle_param will always be the size of a native >> pointer, there is no need to have a union with an unsigned long. >> >> Note that unsigned long may be not equivalent to the size of a pointer >> on ARM64. It depends whether the software is build using the LP64 or >> LLP64 data model. The size of an unsigned long in the latter will be >> 32-bit. >> >> Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx> > > Obviously this is going to break set_xen_guest_handle_raw. I don't think > this cannot be committed separately to the change to > set_xen_guest_handle_raw. Well, all the usage of set_xen_guest_handle_raw within the hypervisor are in compat and kexec which is not built for ARM. Furthermore, after this series set_xen_guest_handle_raw won't work anymore with a guest_handle_param. Regards, -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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