grant_table.h File Reference

A driver for the Xen Grant Table interface. More...

#include <xtf/hypercall.h>

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Functions
int	arch_map_gnttab (void)
	Map the domains grant table under gnttab_raw[]. More...
const char *	gntst_strerror (int err)
	Convert a grant status error value to a string. More...
int	xtf_init_grant_table (unsigned int version)
	Initialise XTF's grant infrastructure. More...

Variables
uint8_t	gnttab_raw [PAGE_SIZE]
	Raw grant table mapping from Xen. More...
grant_entry_v1_t	gnttab_v1 [sizeof(gnttab_raw)/sizeof(grant_entry_v1_t)]
	Grant table in v1 format (aliases gnttab_raw). More...
grant_entry_v2_t	gnttab_v2 [sizeof(gnttab_raw)/sizeof(grant_entry_v2_t)]
	Grant table in v2 format (aliases gnttab_raw). More...

Detailed Description

A driver for the Xen Grant Table interface.

Definition in file grant_table.h.

Function Documentation

arch_map_gnttab()

int arch_map_gnttab

(

void

)

Map the domains grant table under gnttab_raw[].

Definition at line 13 of file grant_table.c.

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gntst_strerror()

const char * gntst_strerror

(

int

err

)

Convert a grant status error value to a string.

Parameters

err

GNTST_*

Returns

error string, or "unknown"

Definition at line 13 of file grant_table.c.

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xtf_init_grant_table()

int xtf_init_grant_table

(

unsigned int

version

)

Initialise XTF's grant infrastructure.

Sets a grant table version, and maps the grant table itself. Safe to be called multiple times to switch grant table version, as long as there are no active grants.

Definition at line 21 of file grant_table.c.

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Variable Documentation

gnttab_raw

uint8_t gnttab_raw[PAGE_SIZE]

extern

Raw grant table mapping from Xen.

Valid once arch_map_gnttab() has returned successfully.

Definition at line 9 of file grant_table.c.

gnttab_v1

grant_entry_v1_t gnttab_v1[ sizeof(gnttab_raw)/sizeof(grant_entry_v1_t)]

extern

Grant table in v1 format (aliases gnttab_raw).

gnttab_v2

grant_entry_v2_t gnttab_v2[ sizeof(gnttab_raw)/sizeof(grant_entry_v2_t)]

extern

Grant table in v2 format (aliases gnttab_raw).