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xen: implement updated XENMEM_add_to_physmap_range ABI

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Allows for more fine grained error reporting. Only used by PVH and
ARM both of which are marked EXPERIMENTAL precisely because the ABI
is not yet stable

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
[v1: Rebased without PVH patches]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Ian Campbell
2013-02-19 22:00:58 -05:00
committed by Konrad Rzeszutek Wilk
parent dacd45f4e7
commit 07d0c94366
2 changed files with 11 additions and 3 deletions
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8
arch/arm/xen/enlighten.c
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@@ -59,14 +59,16 @@ static int map_foreign_page(unsigned long lpfn, unsigned long fgmfn,
};
xen_ulong_t idx = fgmfn;
xen_pfn_t gpfn = lpfn;
int err = 0;
set_xen_guest_handle(xatp.idxs, &idx);
set_xen_guest_handle(xatp.gpfns, &gpfn);
set_xen_guest_handle(xatp.errs, &err);
rc = HYPERVISOR_memory_op(XENMEM_add_to_physmap_range, &xatp);
if (rc) {
pr_warn("Failed to map pfn to mfn rc:%d pfn:%lx mfn:%lx\n",
rc, lpfn, fgmfn);
if (rc || err) {
pr_warn("Failed to map pfn to mfn rc:%d:%d pfn:%lx mfn:%lx\n",
rc, err, lpfn, fgmfn);
return 1;
}
return 0;