On Mon, Aug 06, 2012 at 03:27:11PM +0100, Stefano Stabellini wrote:
All the original Xen headers have xen_pfn_t as mfn and pfn type, however when they have been imported in Linux, xen_pfn_t has been replaced with unsigned long. That might work for x86 and ia64 but it does not for arm. Bring back xen_pfn_t and let each architecture define xen_pfn_t as they see fit.
Ack.
Signed-off-by: Stefano Stabellini stefano.stabellini@eu.citrix.com
arch/arm/include/asm/xen/interface.h | 4 ++++ arch/ia64/include/asm/xen/interface.h | 5 ++++- arch/x86/include/asm/xen/interface.h | 5 +++++ include/xen/interface/grant_table.h | 4 ++-- include/xen/interface/memory.h | 6 +++--- include/xen/interface/platform.h | 4 ++-- include/xen/interface/xen.h | 6 +++--- include/xen/privcmd.h | 2 -- 8 files changed, 23 insertions(+), 13 deletions(-)
diff --git a/arch/arm/include/asm/xen/interface.h b/arch/arm/include/asm/xen/interface.h index ab99270..f904dcc 100644 --- a/arch/arm/include/asm/xen/interface.h +++ b/arch/arm/include/asm/xen/interface.h @@ -25,6 +25,9 @@ } 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; /* Guest handles for primitive C types. */ __DEFINE_GUEST_HANDLE(uchar, unsigned char); __DEFINE_GUEST_HANDLE(uint, unsigned int); @@ -35,6 +38,7 @@ DEFINE_GUEST_HANDLE(long); DEFINE_GUEST_HANDLE(void); DEFINE_GUEST_HANDLE(uint64_t); DEFINE_GUEST_HANDLE(uint32_t); +DEFINE_GUEST_HANDLE(xen_pfn_t); /* Maximum number of virtual CPUs in multi-processor guests. */ #define MAX_VIRT_CPUS 1 diff --git a/arch/ia64/include/asm/xen/interface.h b/arch/ia64/include/asm/xen/interface.h index 09d5f7f..686464e 100644 --- a/arch/ia64/include/asm/xen/interface.h +++ b/arch/ia64/include/asm/xen/interface.h @@ -67,6 +67,10 @@ #define set_xen_guest_handle(hnd, val) do { (hnd).p = val; } while (0) #ifndef __ASSEMBLY__ +/* Explicitly size integers that represent pfns in the public interface
- with Xen so that we could have one ABI that works for 32 and 64 bit
- guests. */
+typedef unsigned long xen_pfn_t; /* Guest handles for primitive C types. */ __DEFINE_GUEST_HANDLE(uchar, unsigned char); __DEFINE_GUEST_HANDLE(uint, unsigned int); @@ -79,7 +83,6 @@ DEFINE_GUEST_HANDLE(void); DEFINE_GUEST_HANDLE(uint64_t); DEFINE_GUEST_HANDLE(uint32_t); -typedef unsigned long xen_pfn_t; DEFINE_GUEST_HANDLE(xen_pfn_t); #define PRI_xen_pfn "lx" #endif diff --git a/arch/x86/include/asm/xen/interface.h b/arch/x86/include/asm/xen/interface.h index a93db16..555f94d 100644 --- a/arch/x86/include/asm/xen/interface.h +++ b/arch/x86/include/asm/xen/interface.h @@ -47,6 +47,10 @@ #endif #ifndef __ASSEMBLY__ +/* Explicitly size integers that represent pfns in the public interface
- 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; /* Guest handles for primitive C types. */ __DEFINE_GUEST_HANDLE(uchar, unsigned char); __DEFINE_GUEST_HANDLE(uint, unsigned int); @@ -57,6 +61,7 @@ DEFINE_GUEST_HANDLE(long); DEFINE_GUEST_HANDLE(void); DEFINE_GUEST_HANDLE(uint64_t); DEFINE_GUEST_HANDLE(uint32_t); +DEFINE_GUEST_HANDLE(xen_pfn_t); #endif #ifndef HYPERVISOR_VIRT_START diff --git a/include/xen/interface/grant_table.h b/include/xen/interface/grant_table.h index a17d844..7da811b 100644 --- a/include/xen/interface/grant_table.h +++ b/include/xen/interface/grant_table.h @@ -338,7 +338,7 @@ DEFINE_GUEST_HANDLE_STRUCT(gnttab_dump_table); #define GNTTABOP_transfer 4 struct gnttab_transfer { /* IN parameters. */
- unsigned long mfn;
- xen_pfn_t mfn; domid_t domid; grant_ref_t ref; /* OUT parameters. */
@@ -375,7 +375,7 @@ struct gnttab_copy { struct { union { grant_ref_t ref;
unsigned long gmfn;
xen_pfn_t gmfn;diff --git a/include/xen/interface/memory.h b/include/xen/interface/memory.h index eac3ce1..abbbff0 100644 --- a/include/xen/interface/memory.h +++ b/include/xen/interface/memory.h @@ -31,7 +31,7 @@ struct xen_memory_reservation { * OUT: GMFN bases of extents that were allocated * (NB. This command also updates the mach_to_phys translation table) */
- GUEST_HANDLE(ulong) extent_start;
- GUEST_HANDLE(xen_pfn_t) extent_start;
/* Number of extents, and size/alignment of each (2^extent_order pages). */ unsigned long nr_extents; @@ -130,7 +130,7 @@ struct xen_machphys_mfn_list { * any large discontiguities in the machine address space, 2MB gaps in * the machphys table will be represented by an MFN base of zero. */
- GUEST_HANDLE(ulong) extent_start;
- GUEST_HANDLE(xen_pfn_t) extent_start;
/* * Number of extents written to the above array. This will be smaller @@ -172,7 +172,7 @@ struct xen_add_to_physmap { unsigned long idx; /* GPFN where the source mapping page should appear. */
- unsigned long gpfn;
- xen_pfn_t gpfn;
}; DEFINE_GUEST_HANDLE_STRUCT(xen_add_to_physmap); diff --git a/include/xen/interface/platform.h b/include/xen/interface/platform.h index 486653f..0bea470 100644 --- a/include/xen/interface/platform.h +++ b/include/xen/interface/platform.h @@ -54,7 +54,7 @@ DEFINE_GUEST_HANDLE_STRUCT(xenpf_settime_t); #define XENPF_add_memtype 31 struct xenpf_add_memtype { /* IN variables. */
- unsigned long mfn;
- xen_pfn_t mfn; uint64_t nr_mfns; uint32_t type; /* OUT variables. */
@@ -84,7 +84,7 @@ struct xenpf_read_memtype { /* IN variables. */ uint32_t reg; /* OUT variables. */
- unsigned long mfn;
- xen_pfn_t mfn; uint64_t nr_mfns; uint32_t type;
}; diff --git a/include/xen/interface/xen.h b/include/xen/interface/xen.h index 3871e47..42834a3 100644 --- a/include/xen/interface/xen.h +++ b/include/xen/interface/xen.h @@ -188,7 +188,7 @@ struct mmuext_op { unsigned int cmd; union { /* [UN]PIN_TABLE, NEW_BASEPTR, NEW_USER_BASEPTR */
unsigned long mfn;
xen_pfn_t mfn;@@ -428,11 +428,11 @@ struct start_info { unsigned long nr_pages; /* Total pages allocated to this domain. */ unsigned long shared_info; /* MACHINE address of shared info struct. */ uint32_t flags; /* SIF_xxx flags. */
- unsigned long store_mfn; /* MACHINE page number of shared page. */
- xen_pfn_t store_mfn; /* MACHINE page number of shared page. */ uint32_t store_evtchn; /* Event channel for store communication. */ union { struct {
unsigned long mfn; /* MACHINE page number of console page. */
xen_pfn_t mfn; /* MACHINE page number of console page. */ uint32_t evtchn; /* Event channel for console page. */diff --git a/include/xen/privcmd.h b/include/xen/privcmd.h index 4d58881..45c1aa1 100644 --- a/include/xen/privcmd.h +++ b/include/xen/privcmd.h @@ -37,8 +37,6 @@ #include <linux/compiler.h> #include <xen/interface/xen.h> -typedef unsigned long xen_pfn_t;
struct privcmd_hypercall { __u64 op; __u64 arg[5]; -- 1.7.2.5