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xen: Add xc_domain_add_to_physmap to xen_interface. 

This function will be used to support sync dirty bitmap.

This come with a check against every Xen release, and special
implementation for Xen version that doesn't have this specific call.

This function will not be usable with Xen 3.3 because the behavior is
different.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Anthony PERARD 2011-05-24 14:34:20 +01:00 committed by Alexander Graf
parent eb47d7c5d9
commit b87de24e6c
2 changed files with 42 additions and 1 deletions
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29
configure vendored
View File

@ -1210,6 +1210,7 @@ int main(void) {
xc = xc_interface_open(0, 0, 0);
xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
xc_gnttab_open(NULL, 0);
xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
return 0;
}
EOF
@ -1228,10 +1229,14 @@ EOF
# error HVM_MAX_VCPUS not defined
#endif
int main(void) {
struct xen_add_to_physmap xatp = {
.domid = 0, .space = XENMAPSPACE_gmfn, .idx = 0, .gpfn = 0,
};
xs_daemon_open();
xc_interface_open();
xc_gnttab_open();
xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
xc_memory_op(0, XENMEM_add_to_physmap, &xatp);
return 0;
}
EOF
@ -1240,7 +1245,29 @@ EOF
xen_ctrl_version=400
xen=yes
# Xen 3.3.0, 3.4.0
# Xen 3.4.0
elif (
cat > $TMPC <<EOF
#include <xenctrl.h>
#include <xs.h>
int main(void) {
struct xen_add_to_physmap xatp = {
.domid = 0, .space = XENMAPSPACE_gmfn, .idx = 0, .gpfn = 0,
};
xs_daemon_open();
xc_interface_open();
xc_gnttab_open();
xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
xc_memory_op(0, XENMEM_add_to_physmap, &xatp);
return 0;
}
EOF
compile_prog "" "$xen_libs"
) ; then
xen_ctrl_version=340
xen=yes
# Xen 3.3.0
elif (
cat > $TMPC <<EOF
#include <xenctrl.h>

14
hw/xen_common.h
View File

@ -71,6 +71,20 @@ static inline int xc_domain_populate_physmap_exact
(xc_handle, domid, nr_extents, extent_order, mem_flags, extent_start);
}
static inline int xc_domain_add_to_physmap(int xc_handle, uint32_t domid,
unsigned int space, unsigned long idx,
xen_pfn_t gpfn)
{
struct xen_add_to_physmap xatp = {
.domid = domid,
.space = space,
.idx = idx,
.gpfn = gpfn,
};
return xc_memory_op(xc_handle, XENMEM_add_to_physmap, &xatp);
}
/* Xen 4.1 */
#else