diff mbox

[03/18] arm/altp2m: Add HVMOP_altp2m_get_domain_state.

Message ID 20160704114605.10086-22-proskurin@sec.in.tum.de (mailing list archive)
State New, archived
Headers show

Commit Message

Sergej Proskurin July 4, 2016, 11:45 a.m. UTC 
This commit adopts the x86 HVMOP_altp2m_get_domain_state implementation.

Signed-off-by: Sergej Proskurin <proskurin@sec.in.tum.de>
---
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Julien Grall <julien.grall@arm.com>
---
 xen/arch/arm/hvm.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/xen/arch/arm/hvm.c b/xen/arch/arm/hvm.c
index 1118f22..8e8e0f7 100644
--- a/xen/arch/arm/hvm.c
+++ b/xen/arch/arm/hvm.c
@@ -93,7 +93,14 @@  static int do_altp2m_op(XEN_GUEST_HANDLE_PARAM(void) arg)
     switch ( a.cmd )
     {
     case HVMOP_altp2m_get_domain_state:
-        rc = -EOPNOTSUPP;
+        if ( !d->arch.hvm_domain.params[HVM_PARAM_ALTP2M] )
+        {
+            rc = -EINVAL;
+            break;
+        }
+
+        a.u.domain_state.state = altp2m_active(d);
+        rc = __copy_to_guest(arg, &a, 1) ? -EFAULT : 0;
         break;
 
     case HVMOP_altp2m_set_domain_state: