xen/arm: Introduce xen_ulong_t for unsigned long

All the original Xen headers have xen_ulong_t as unsigned long type, however
when they have been imported in Linux, xen_ulong_t has been replaced with
unsigned long. That might work for x86 and ia64 but it does not for arm.
Bring back xen_ulong_t and let each architecture define xen_ulong_t as they
see fit.

Also explicitly size pointers (__DEFINE_GUEST_HANDLE) to 64 bit.


Changes in v3:

- remove the incorrect changes to multicall_entry;
- remove the change to apic_physbase.


Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Stefano Stabellini 2012-09-14 13:34:43 +00:00
parent 2e01f16601
commit 256f631f1f
6 changed files with 16 additions and 10 deletions

View file

@ -9,8 +9,11 @@
#include <linux/types.h>
#define uint64_aligned_t uint64_t __attribute__((aligned(8)))
#define __DEFINE_GUEST_HANDLE(name, type) \
typedef type * __guest_handle_ ## name
typedef struct { union { type *p; uint64_aligned_t q; }; } \
__guest_handle_ ## name
#define DEFINE_GUEST_HANDLE_STRUCT(name) \
__DEFINE_GUEST_HANDLE(name, struct name)
@ -21,13 +24,14 @@
do { \
if (sizeof(hnd) == 8) \
*(uint64_t *)&(hnd) = 0; \
(hnd) = val; \
(hnd).p = val; \
} while (0)
#ifndef __ASSEMBLY__
/* Explicitly size integers that represent pfns in the interface with
* Xen so that we can have one ABI that works for 32 and 64 bit guests. */
typedef uint64_t xen_pfn_t;
typedef uint64_t xen_ulong_t;
/* Guest handles for primitive C types. */
__DEFINE_GUEST_HANDLE(uchar, unsigned char);
__DEFINE_GUEST_HANDLE(uint, unsigned int);

View file

@ -71,6 +71,7 @@
* with Xen so that we could have one ABI that works for 32 and 64 bit
* guests. */
typedef unsigned long xen_pfn_t;
typedef unsigned long xen_ulong_t;
/* Guest handles for primitive C types. */
__DEFINE_GUEST_HANDLE(uchar, unsigned char);
__DEFINE_GUEST_HANDLE(uint, unsigned int);

View file

@ -51,6 +51,7 @@
* with Xen so that on ARM we can have one ABI that works for 32 and 64
* bit guests. */
typedef unsigned long xen_pfn_t;
typedef unsigned long xen_ulong_t;
/* Guest handles for primitive C types. */
__DEFINE_GUEST_HANDLE(uchar, unsigned char);
__DEFINE_GUEST_HANDLE(uint, unsigned int);

View file

@ -34,7 +34,7 @@ struct xen_memory_reservation {
GUEST_HANDLE(xen_pfn_t) extent_start;
/* Number of extents, and size/alignment of each (2^extent_order pages). */
unsigned long nr_extents;
xen_ulong_t nr_extents;
unsigned int extent_order;
/*
@ -92,7 +92,7 @@ struct xen_memory_exchange {
* command will be non-zero.
* 5. THIS FIELD MUST BE INITIALISED TO ZERO BY THE CALLER!
*/
unsigned long nr_exchanged;
xen_ulong_t nr_exchanged;
};
DEFINE_GUEST_HANDLE_STRUCT(xen_memory_exchange);
@ -148,8 +148,8 @@ DEFINE_GUEST_HANDLE_STRUCT(xen_machphys_mfn_list);
*/
#define XENMEM_machphys_mapping 12
struct xen_machphys_mapping {
unsigned long v_start, v_end; /* Start and end virtual addresses. */
unsigned long max_mfn; /* Maximum MFN that can be looked up. */
xen_ulong_t v_start, v_end; /* Start and end virtual addresses. */
xen_ulong_t max_mfn; /* Maximum MFN that can be looked up. */
};
DEFINE_GUEST_HANDLE_STRUCT(xen_machphys_mapping_t);
@ -172,7 +172,7 @@ struct xen_add_to_physmap {
unsigned int space;
/* Index into source mapping space. */
unsigned long idx;
xen_ulong_t idx;
/* GPFN where the source mapping page should appear. */
xen_pfn_t gpfn;
@ -189,7 +189,7 @@ struct xen_translate_gpfn_list {
domid_t domid;
/* Length of list. */
unsigned long nr_gpfns;
xen_ulong_t nr_gpfns;
/* List of GPFNs to translate. */
GUEST_HANDLE(ulong) gpfn_list;

View file

@ -56,7 +56,7 @@ struct physdev_eoi {
#define PHYSDEVOP_pirq_eoi_gmfn_v2 28
struct physdev_pirq_eoi_gmfn {
/* IN */
unsigned long gmfn;
xen_ulong_t gmfn;
};
/*

View file

@ -45,7 +45,7 @@ struct xen_changeset_info {
#define XENVER_platform_parameters 5
struct xen_platform_parameters {
unsigned long virt_start;
xen_ulong_t virt_start;
};
#define XENVER_get_features 6