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Subject[PATCH 17/24] xen: allow privcmd for HVM guests
Date
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 <stefano.stabellini@eu.citrix.com>
---
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


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