diff options
| author | Ian Campbell <ian.campbell@citrix.com> | 2013-02-22 08:58:03 +0000 |
|---|---|---|
| committer | Ian Campbell <ian.campbell@citrix.com> | 2013-02-22 12:14:53 +0000 |
| commit | 1c38a1e937d39d3f6079667bfb6e8ff877eddbde (patch) | |
| tree | 168a0f74572069e862dae30ccce6335ed7d44b0f /tools/include/xen-foreign/structs.py | |
| parent | a51b368b64943196f86f444c45b1c5c61b148d1a (diff) | |
| download | xen-1c38a1e937d39d3f6079667bfb6e8ff877eddbde.tar.gz xen-1c38a1e937d39d3f6079667bfb6e8ff877eddbde.tar.bz2 xen-1c38a1e937d39d3f6079667bfb6e8ff877eddbde.zip | |
xen: arm: separate guest user regs from internal guest state.
struct cpu_user_regs is currently used as both internal state
(specifically at the base of the stack) and a guest/toolstack
visible API (via struct vcpu_guest_context used by
XEN_DOMCTL_{g,s}etvcpucontext and VCPUOP_initialise).
This causes problems when we want to make the API 64-bit clean since
we don't really want to change the size of the on-stack struct.
So split into vcpu_guest_core_regs which is the API facing struct
and keep cpu_user_regs purely internal, translate between the two.
In the user API arrange for both 64- and 32-bit registers to be
included in a layout which does not differ depending on toolstack
architecture. Also switch to using the more formal banked register
names (e.g. with the _usr suffix) for clarity.
This is an ABI change. Note that the kernel doesn't currently use
this data structure so it affects the tools interface only.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Tim Deegan <tim@xen.org>
Diffstat (limited to 'tools/include/xen-foreign/structs.py')
| -rw-r--r-- | tools/include/xen-foreign/structs.py | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/include/xen-foreign/structs.py b/tools/include/xen-foreign/structs.py index 5aec2c5cc2..0b33a77480 100644 --- a/tools/include/xen-foreign/structs.py +++ b/tools/include/xen-foreign/structs.py @@ -6,6 +6,7 @@ unions = [ "vcpu_cr_regs", structs = [ "start_info", "trap_info", "cpu_user_regs", + "vcpu_guest_core_regs", "vcpu_guest_context", "arch_vcpu_info", "vcpu_time_info", |