Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
---
drivers/xen/grant-table.c | 2 +-
include/asm-x86/xen/interface.h | 24 ++++++++++++++++++++++++
include/xen/interface/grant_table.h | 11 ++++++++---
3 files changed, 33 insertions(+), 4 deletions(-)
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index ea94dba..95016fd 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -466,7 +466,7 @@ static int gnttab_map(unsigned int start_idx, unsigned int
end_idx)
setup.dom = DOMID_SELF;
setup.nr_frames = nr_gframes;
- setup.frame_list = frames;
+ set_xen_guest_handle(setup.frame_list, frames);
rc = HYPERVISOR_grant_table_op(GNTTABOP_setup_table, &setup, 1);
if (rc == -ENOSYS) {
diff --git a/include/asm-x86/xen/interface.h b/include/asm-x86/xen/interface.h
index 165c396..49993dd 100644
--- a/include/asm-x86/xen/interface.h
+++ b/include/asm-x86/xen/interface.h
@@ -22,6 +22,30 @@
#define DEFINE_GUEST_HANDLE(name) __DEFINE_GUEST_HANDLE(name, name)
#define GUEST_HANDLE(name) __guest_handle_ ## name
+#ifdef __XEN__
+#if defined(__i386__)
+#define set_xen_guest_handle(hnd, val) \
+ do { \
+ if (sizeof(hnd) == 8) \
+ *(uint64_t *)&(hnd) = 0; \
+ (hnd).p = val; \
+ } while (0)
+#elif defined(__x86_64__)
+#define set_xen_guest_handle(hnd, val) do { (hnd).p = val; } while (0)
+#endif
+#else
+#if defined(__i386__)
+#define set_xen_guest_handle(hnd, val) \
+ do { \
+ if (sizeof(hnd) == 8) \
+ *(uint64_t *)&(hnd) = 0; \
+ (hnd) = val; \
+ } while (0)
+#elif defined(__x86_64__)
+#define set_xen_guest_handle(hnd, val) do { (hnd) = val; } while (0)
+#endif
+#endif
+
#ifndef __ASSEMBLY__
/* Guest handles for primitive C types. */
__DEFINE_GUEST_HANDLE(uchar, unsigned char);
diff --git a/include/xen/interface/grant_table.h
b/include/xen/interface/grant_table.h
index 2190498..39da93c 100644
--- a/include/xen/interface/grant_table.h
+++ b/include/xen/interface/grant_table.h
@@ -185,6 +185,7 @@ struct gnttab_map_grant_ref {
grant_handle_t handle;
uint64_t dev_bus_addr;
};
+DEFINE_GUEST_HANDLE_STRUCT(gnttab_map_grant_ref);
/*
* GNTTABOP_unmap_grant_ref: Destroy one or more grant-reference mappings
@@ -206,6 +207,7 @@ struct gnttab_unmap_grant_ref {
/* OUT parameters. */
int16_t status; /* GNTST_* */
};
+DEFINE_GUEST_HANDLE_STRUCT(gnttab_unmap_grant_ref);
/*
* GNTTABOP_setup_table: Set up a grant table for <dom> comprising at least
@@ -223,8 +225,9 @@ struct gnttab_setup_table {
uint32_t nr_frames;
/* OUT parameters. */
int16_t status; /* GNTST_* */
- ulong *frame_list;
+ GUEST_HANDLE(ulong) frame_list;
};
+DEFINE_GUEST_HANDLE_STRUCT(gnttab_setup_table);
/*
* GNTTABOP_dump_table: Dump the contents of the grant table to the
@@ -237,6 +240,7 @@ struct gnttab_dump_table {
/* OUT parameters. */
int16_t status; /* GNTST_* */
};
+DEFINE_GUEST_HANDLE_STRUCT(gnttab_dump_table);
/*
* GNTTABOP_transfer_grant_ref: Transfer <frame> to a foreign domain. The
@@ -255,7 +259,7 @@ struct gnttab_transfer {
/* OUT parameters. */
int16_t status;
};
-
+DEFINE_GUEST_HANDLE_STRUCT(gnttab_transfer);
/*
* GNTTABOP_copy: Hypervisor based copy
@@ -296,6 +300,7 @@ struct gnttab_copy {
/* OUT parameters. */
int16_t status;
};
+DEFINE_GUEST_HANDLE_STRUCT(gnttab_copy);
/*
* GNTTABOP_query_size: Query the current and maximum sizes of the shared
@@ -313,7 +318,7 @@ struct gnttab_query_size {
uint32_t max_nr_frames;
int16_t status; /* GNTST_* */
};
-
+DEFINE_GUEST_HANDLE_STRUCT(gnttab_query_size);
/*
* Bitfield values for update_pin_status.flags.
--
1.5.3
--
yamahata
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