On Fri, 5 Jun 2015, Jan Beulich wrote:
> This is done indirectly by adjusting two typedefs and helps emphasizing
> that the respective tables aren't supposed to be modified at runtime
> (as they may be shared between devices).
>
> Signed-off-by: Jan Beulich
Reviewed-by: Stefano Stabellini
> --- a/qemu/upstream/hw/xen/xen_pt.h
> +++ b/qemu/upstream/hw/xen/xen_pt.h
> @@ -31,7 +31,7 @@ void xen_pt_log(const PCIDevice *d, cons
> /* Helper */
> #define XEN_PFN(x) ((x) >> XC_PAGE_SHIFT)
>
> -typedef struct XenPTRegInfo XenPTRegInfo;
> +typedef const struct XenPTRegInfo XenPTRegInfo;
> typedef struct XenPTReg XenPTReg;
>
> typedef struct XenPCIPassthroughState XenPCIPassthroughState;
> @@ -135,11 +135,11 @@ struct XenPTReg {
> uint32_t data; /* emulated value */
> };
>
> -typedef struct XenPTRegGroupInfo XenPTRegGroupInfo;
> +typedef const struct XenPTRegGroupInfo XenPTRegGroupInfo;
>
> /* emul reg group size initialize method */
> typedef int (*xen_pt_reg_size_init_fn)
> -(XenPCIPassthroughState *, const XenPTRegGroupInfo *,
> +(XenPCIPassthroughState *, XenPTRegGroupInfo *,
> uint32_t base_offset, uint8_t *size);
>
> /* emulated register group information */
> @@ -154,7 +154,7 @@ struct XenPTRegGroupInfo {
> /* emul register group management table */
> typedef struct XenPTRegGroup {
> QLIST_ENTRY(XenPTRegGroup) entries;
> -const XenPTRegGroupInfo *reg_grp;
> +XenPTRegGroupInfo *reg_grp;
> uint32_t base_offset;
> uint8_t size;
> QLIST_HEAD(, XenPTReg) reg_tbl_list;
> --- a/qemu/upstream/hw/xen/xen_pt_config_init.c
> +++ b/qemu/upstream/hw/xen/xen_pt_config_init.c
> @@ -96,8 +96,7 @@ XenPTReg *xen_pt_find_reg(XenPTRegGroup
> }
>
> static uint32_t get_throughable_mask(const XenPCIPassthroughState *s,
> - const XenPTRegInfo *reg,
> - uint32_t valid_mask)
> + XenPTRegInfo *reg, uint32_t valid_mask)
> {
> uint32_t throughable_mask = ~(reg->emu_mask | reg->ro_mask);
___
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