[PATCH 17/24] xen: allow privcmd for HVM guests
From: Stefano Stabellini <hidden>
Date: 2012-07-26 15:56:18
Also in:
lkml, xen-devel
Subsystem:
the rest, xen hypervisor interface · Maintainers:
Linus Torvalds, Juergen Gross, Stefano Stabellini
In order for privcmd mmap to work correctly, xen_remap_domain_mfn_range needs to be implemented for HVM guests. If it is not, mmap is going to fail later on. Signed-off-by: Stefano Stabellini <redacted> --- drivers/xen/privcmd.c | 4 ---- 1 files changed, 0 insertions(+), 4 deletions(-)
diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c
index ccee0f1..85226cb 100644
--- a/drivers/xen/privcmd.c
+++ b/drivers/xen/privcmd.c@@ -380,10 +380,6 @@ static struct vm_operations_struct privcmd_vm_ops = { static int privcmd_mmap(struct file *file, struct vm_area_struct *vma) { - /* Unsupported for auto-translate guests. */ - if (xen_feature(XENFEAT_auto_translated_physmap)) - return -ENOSYS; - /* DONTCOPY is essential for Xen because copy_page_range doesn't know * how to recreate these mappings */ vma->vm_flags |= VM_RESERVED | VM_IO | VM_DONTCOPY | VM_PFNMAP;
--
1.7.2.5