[Xen-devel] [PATCH v3 10/13] xen/arm: support VCPUOP_register_vcpu_info.

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
CC: keir@xxxxxxx
CC: JBeulich@xxxxxxxx

Changes in v3:
- do not export all the vcpu_op hypercalls to ARM guests, only
VCPUOP_register_vcpu_info.
---
 xen/arch/arm/domain.c           |   13 +++++++++++++
 xen/arch/arm/traps.c            |    1 +
 xen/include/asm-arm/hypercall.h |    3 +++
 3 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/xen/arch/arm/domain.c b/xen/arch/arm/domain.c
index fee3790..a676441 100644
--- a/xen/arch/arm/domain.c
+++ b/xen/arch/arm/domain.c
@@ -10,6 +10,7 @@
  * GNU General Public License for more details.
  */
 #include <xen/config.h>
+#include <xen/hypercall.h>
 #include <xen/init.h>
 #include <xen/lib.h>
 #include <xen/sched.h>
@@ -628,6 +629,18 @@ void arch_dump_domain_info(struct domain *d)
        }
 }
 
+
+long do_restricted_vcpu_op(int cmd, int vcpuid, XEN_GUEST_HANDLE_PARAM(void) 
arg)
+{
+    switch ( cmd )
+    {
+        case VCPUOP_register_vcpu_info:
+            return do_vcpu_op(cmd, vcpuid, arg);
+        default:
+            return -EINVAL;
+    }
+}
+
 long arch_do_vcpu_op(int cmd, struct vcpu *v, XEN_GUEST_HANDLE_PARAM(void) arg)
 {
     return -ENOSYS;
diff --git a/xen/arch/arm/traps.c b/xen/arch/arm/traps.c
index 733099a..d69231c 100644
--- a/xen/arch/arm/traps.c
+++ b/xen/arch/arm/traps.c
@@ -617,6 +617,7 @@ static arm_hypercall_t arm_hypercall_table[] = {
     HYPERCALL(sysctl, 2),
     HYPERCALL(hvm_op, 2),
     HYPERCALL(grant_table_op, 3),
+    HYPERCALL(restricted_vcpu_op, 3),
 };
 
 #define __PSCI_cpu_suspend 0
diff --git a/xen/include/asm-arm/hypercall.h b/xen/include/asm-arm/hypercall.h
index 0833ec4..8ab0cc4 100644
--- a/xen/include/asm-arm/hypercall.h
+++ b/xen/include/asm-arm/hypercall.h
@@ -4,6 +4,9 @@
 #include <public/domctl.h> /* for arch_do_domctl */
 int do_physdev_op(int cmd, XEN_GUEST_HANDLE_PARAM(void) arg);
 
+#define __HYPERVISOR_restricted_vcpu_op __HYPERVISOR_vcpu_op
+long do_restricted_vcpu_op(int cmd, int vcpuid, XEN_GUEST_HANDLE_PARAM(void) 
arg);
+
 #endif /* __ASM_ARM_HYPERCALL_H__ */
 /*
  * Local variables:
-- 
1.7.2.5


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