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| author | Dan Magenheimer <dan.magenheimer@oracle.com> | 2013-02-25 15:19:14 -0500 |
|---|---|---|
| committer | Ian Jackson <Ian.Jackson@eu.citrix.com> | 2013-04-16 16:21:50 +0100 |
| commit | fc67e9dc0c1fe0cebbc2d77fae5aa721e7089615 (patch) | |
| tree | c2cec935ac2fc27724fa14bb8045bd1b4ebafbb5 /tools/libxc/xenctrl.h | |
| parent | 749bc93f7a1ad47640cc7876d27641e98a08bf61 (diff) | |
| download | xen-fc67e9dc0c1fe0cebbc2d77fae5aa721e7089615.tar.gz xen-fc67e9dc0c1fe0cebbc2d77fae5aa721e7089615.tar.bz2 xen-fc67e9dc0c1fe0cebbc2d77fae5aa721e7089615.zip | |
xc: use XENMEM_claim_pages hypercall during guest creation.
We add an extra parameter to the structures passed to the
PV routine (arch_setup_meminit) and HVM routine (setup_guest)
that determines whether the claim hypercall is to be done.
The contents of the 'claim_enabled' is defined as an 'int'
in case the hypercall expands in the future with extra
flags (for example for per-NUMA allocation). For right now
the proper values are: 0 to disable it or 1 to enable
it.
If the hypervisor does not support this function, the
xc_domain_claim_pages and xc_domain_get_outstanding_pages
will silently return 0 (and set errno to zero).
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
[v2: Updated per Ian's recommendations]
[v3: Added support for out-of-sync hypervisor]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Diffstat (limited to 'tools/libxc/xenctrl.h')
| -rw-r--r-- | tools/libxc/xenctrl.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/libxc/xenctrl.h b/tools/libxc/xenctrl.h index 50853af103..19e34b290e 100644 --- a/tools/libxc/xenctrl.h +++ b/tools/libxc/xenctrl.h @@ -1133,6 +1133,12 @@ int xc_domain_populate_physmap_exact(xc_interface *xch, unsigned int mem_flags, xen_pfn_t *extent_start); +int xc_domain_claim_pages(xc_interface *xch, + uint32_t domid, + unsigned long nr_pages); + +unsigned long xc_domain_get_outstanding_pages(xc_interface *xch); + int xc_domain_memory_exchange_pages(xc_interface *xch, int domid, unsigned long nr_in_extents, |