[PATCH 06/23] xen/domctl: Expose privileged and hardware capabilities

[Jason Andryuk <jason.andryuk@xxxxxxx>]

There isn't currently a way to determine if a domain is the hardware
domain or a privilged (control) domain.  Add new domain info flags to
indicate these properties.

This is useful for a hyperlaunch-ed xenstore domain to determine which
domains are privileged.

Signed-off-by: Jason Andryuk <jason.andryuk@xxxxxxx>
---
 xen/common/domctl.c         | 2 ++
 xen/include/public/domctl.h | 6 ++++++
 2 files changed, 8 insertions(+)

diff --git a/xen/common/domctl.c b/xen/common/domctl.c
index 05abb581a0..3c6dcfed87 100644
--- a/xen/common/domctl.c
+++ b/xen/common/domctl.c
@@ -103,6 +103,8 @@ void getdomaininfo(struct domain *d, struct 
xen_domctl_getdomaininfo *info)
         (d->debugger_attached           ? XEN_DOMINF_debugged  : 0) |
         (is_xenstore_domain(d)          ? XEN_DOMINF_xs_domain : 0) |
         (is_hvm_domain(d)               ? XEN_DOMINF_hvm_guest : 0) |
+        (is_hardware_domain(d)          ? XEN_DOMINF_hardware  : 0) |
+        (is_control_domain(d)           ? XEN_DOMINF_priv      : 0) |
         d->shutdown_code << XEN_DOMINF_shutdownshift;
 
     xsm_security_domaininfo(d, info);
diff --git a/xen/include/public/domctl.h b/xen/include/public/domctl.h
index e2d392d1e5..84c2af6a09 100644
--- a/xen/include/public/domctl.h
+++ b/xen/include/public/domctl.h
@@ -155,6 +155,12 @@ struct xen_domctl_getdomaininfo {
 /* domain has hardware assisted paging */
 #define _XEN_DOMINF_hap       8
 #define XEN_DOMINF_hap        (1U<<_XEN_DOMINF_hap)
+/* domain is hardware domain */
+#define _XEN_DOMINF_hardware  9
+#define XEN_DOMINF_hardware   (1U<<_XEN_DOMINF_hardware)
+/* domain is privileged */
+#define _XEN_DOMINF_priv      10
+#define XEN_DOMINF_priv       (1U<<_XEN_DOMINF_priv)
  /* XEN_DOMINF_shutdown guest-supplied code.  */
 #define XEN_DOMINF_shutdownmask 255
 #define XEN_DOMINF_shutdownshift 16
-- 
2.48.1