Differential D29307 Diff 96774 sys/xen/interface/grant_table.h

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sys/xen/interface/grant_table.h

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	*/			*/
	#define GTF_invalid (0U<<0)			#define GTF_invalid (0U<<0)
	#define GTF_permit_access (1U<<0)			#define GTF_permit_access (1U<<0)
	#define GTF_accept_transfer (2U<<0)			#define GTF_accept_transfer (2U<<0)
	#define GTF_transitive (3U<<0)			#define GTF_transitive (3U<<0)
	#define GTF_type_mask (3U<<0)			#define GTF_type_mask (3U<<0)

	/*			/*
	* Subflags for GTF_permit_access.			* Subflags for GTF_permit_access and GTF_transitive.
	* GTF_readonly: Restrict @domid to read-only mappings and accesses. [GST]			* GTF_readonly: Restrict @domid to read-only mappings and accesses. [GST]
	* GTF_reading: Grant entry is currently mapped for reading by @domid. [XEN]			* GTF_reading: Grant entry is currently mapped for reading by @domid. [XEN]
	* GTF_writing: Grant entry is currently mapped for writing by @domid. [XEN]			* GTF_writing: Grant entry is currently mapped for writing by @domid. [XEN]
	* GTF_PAT, GTF_PWT, GTF_PCD: (x86) cache attribute flags for the grant [GST]			* Further subflags for GTF_permit_access only.
				* GTF_PAT, GTF_PWT, GTF_PCD: (x86) cache attribute flags to be used for
				* mappings of the grant [GST]
	* GTF_sub_page: Grant access to only a subrange of the page. @domid			* GTF_sub_page: Grant access to only a subrange of the page. @domid
	* will only be allowed to copy from the grant, and not			* will only be allowed to copy from the grant, and not
	* map it. [GST]			* map it. [GST]
	*/			*/
	#define _GTF_readonly (2)			#define _GTF_readonly (2)
	#define GTF_readonly (1U<<_GTF_readonly)			#define GTF_readonly (1U<<_GTF_readonly)
	#define _GTF_reading (3)			#define _GTF_reading (3)
	#define GTF_reading (1U<<_GTF_reading)			#define GTF_reading (1U<<_GTF_reading)
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	/*			/*
	* GNTMAP_contains_pte subflag:			* GNTMAP_contains_pte subflag:
	* 0 => This map request contains a host virtual address.			* 0 => This map request contains a host virtual address.
	* 1 => This map request contains the machine addess of the PTE to update.			* 1 => This map request contains the machine addess of the PTE to update.
	*/			*/
	#define _GNTMAP_contains_pte (4)			#define _GNTMAP_contains_pte (4)
	#define GNTMAP_contains_pte (1<<_GNTMAP_contains_pte)			#define GNTMAP_contains_pte (1<<_GNTMAP_contains_pte)

	#define _GNTMAP_can_fail (5)
	#define GNTMAP_can_fail (1<<_GNTMAP_can_fail)

	/*			/*
	* Bits to be placed in guest kernel available PTE bits (architecture			* Bits to be placed in guest kernel available PTE bits (architecture
	* dependent; only supported when XENFEAT_gnttab_map_avail_bits is set).			* dependent; only supported when XENFEAT_gnttab_map_avail_bits is set).
	*/			*/
	#define _GNTMAP_guest_avail0 (16)			#define _GNTMAP_guest_avail0 (16)
	#define GNTMAP_guest_avail_mask ((uint32_t)~0 << _GNTMAP_guest_avail0)			#define GNTMAP_guest_avail_mask ((uint32_t)~0 << _GNTMAP_guest_avail0)

	/*			/*
	* Values for error status returns. All errors are -ve.			* Values for error status returns. All errors are -ve.
	*/			*/
	/* ` enum grant_status { */			/* ` enum grant_status { */
	#define GNTST_okay (0) /* Normal return. */			#define GNTST_okay (0) /* Normal return. */
	#define GNTST_general_error (-1) /* General undefined error. */			#define GNTST_general_error (-1) /* General undefined error. */
	#define GNTST_bad_domain (-2) /* Unrecognsed domain id. */			#define GNTST_bad_domain (-2) /* Unrecognsed domain id. */
	#define GNTST_bad_gntref (-3) /* Unrecognised or inappropriate gntref. */			#define GNTST_bad_gntref (-3) /* Unrecognised or inappropriate gntref. */
	#define GNTST_bad_handle (-4) /* Unrecognised or inappropriate handle. */			#define GNTST_bad_handle (-4) /* Unrecognised or inappropriate handle. */
	#define GNTST_bad_virt_addr (-5) /* Inappropriate virtual address to map. */			#define GNTST_bad_virt_addr (-5) /* Inappropriate virtual address to map. */
	#define GNTST_bad_dev_addr (-6) /* Inappropriate device address to unmap.*/			#define GNTST_bad_dev_addr (-6) /* Inappropriate device address to unmap.*/
	#define GNTST_no_device_space (-7) /* Out of space in I/O MMU. */			#define GNTST_no_device_space (-7) /* Out of space in I/O MMU. */
	#define GNTST_permission_denied (-8) /* Not enough privilege for operation. */			#define GNTST_permission_denied (-8) /* Not enough privilege for operation. */
	#define GNTST_bad_page (-9) /* Specified page was invalid for op. */			#define GNTST_bad_page (-9) /* Specified page was invalid for op. */
	#define GNTST_bad_copy_arg (-10) /* copy arguments cross page boundary. */			#define GNTST_bad_copy_arg (-10) /* copy arguments cross page boundary. */
	#define GNTST_address_too_big (-11) /* transfer page address too large. */			#define GNTST_address_too_big (-11) /* transfer page address too large. */
	#define GNTST_eagain (-12) /* Operation not done; try again. */			#define GNTST_eagain (-12) /* Operation not done; try again. */
				#define GNTST_no_space (-13) /* Out of space (handles etc). */
	/* ` } */			/* ` } */

	#define GNTTABOP_error_msgs { \			#define GNTTABOP_error_msgs { \
	"okay", \			"okay", \
	"undefined error", \			"undefined error", \
	"unrecognised domain id", \			"unrecognised domain id", \
	"invalid grant reference", \			"invalid grant reference", \
	"invalid mapping handle", \			"invalid mapping handle", \
	"invalid virtual address", \			"invalid virtual address", \
	"invalid device address", \			"invalid device address", \
	"no spare translation slot in the I/O MMU", \			"no spare translation slot in the I/O MMU", \
	"permission denied", \			"permission denied", \
	"bad page", \			"bad page", \
	"copy arguments cross page boundary", \			"copy arguments cross page boundary", \
	"page address size too large", \			"page address size too large", \
	"operation not done; try again" \			"operation not done; try again", \
				"out of space", \
	}			}

	#endif /* __XEN_PUBLIC_GRANT_TABLE_H__ */			#endif /* __XEN_PUBLIC_GRANT_TABLE_H__ */

	/*			/*
	* Local variables:			* Local variables:
	* mode: C			* mode: C
	* c-file-style: "BSD"			* c-file-style: "BSD"
	* c-basic-offset: 4			* c-basic-offset: 4
	* tab-width: 4			* tab-width: 4
	* indent-tabs-mode: nil			* indent-tabs-mode: nil
	* End:			* End:
	*/			*/