[XEN][PATCH] xen/domctl: add XEN_DOMCTL_CDF_ALL mask

[Grygorii Strashko <grygorii_strashko@xxxxxxxx>]

From: Grygorii Strashko <grygorii_strashko@xxxxxxxx>

Every XEN_DOMCTL_CDF_x flag:
- is defined in public/domctl.h
- explicitly listed in sanitise_domain_config() (common/domain.c) to form
mask containing all supported DOMCTL_CDF flags for "Unknown CDF flags"
check.

So, it is required to modify two files every time XEN_DOMCTL_CDF_x flags
set is modified.

Simplify the things by introducing XEN_DOMCTL_CDF_ALL mask, so
sanitise_domain_config() no need to be modified any more.

Signed-off-by: Grygorii Strashko <grygorii_strashko@xxxxxxxx>
---
 xen/common/domain.c         | 7 +------
 xen/include/public/domctl.h | 7 +++++++
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/xen/common/domain.c b/xen/common/domain.c
index 775c33928585..4f91316ad93e 100644
--- a/xen/common/domain.c
+++ b/xen/common/domain.c
@@ -730,12 +730,7 @@ static int sanitise_domain_config(struct 
xen_domctl_createdomain *config)
     bool iommu = config->flags & XEN_DOMCTL_CDF_iommu;
     bool vpmu = config->flags & XEN_DOMCTL_CDF_vpmu;
 
-    if ( config->flags &
-         ~(XEN_DOMCTL_CDF_hvm | XEN_DOMCTL_CDF_hap |
-           XEN_DOMCTL_CDF_s3_integrity | XEN_DOMCTL_CDF_oos_off |
-           XEN_DOMCTL_CDF_xs_domain | XEN_DOMCTL_CDF_iommu |
-           XEN_DOMCTL_CDF_nested_virt | XEN_DOMCTL_CDF_vpmu |
-           XEN_DOMCTL_CDF_trap_unmapped_accesses) )
+    if ( config->flags & ~XEN_DOMCTL_CDF_ALL )
     {
         dprintk(XENLOG_INFO, "Unknown CDF flags %#x\n", config->flags);
         return -EINVAL;
diff --git a/xen/include/public/domctl.h b/xen/include/public/domctl.h
index 8f6708c0a7cd..94a8e3042cbf 100644
--- a/xen/include/public/domctl.h
+++ b/xen/include/public/domctl.h
@@ -72,6 +72,13 @@ struct xen_domctl_createdomain {
 /* Max XEN_DOMCTL_CDF_* constant.  Used for ABI checking. */
 #define XEN_DOMCTL_CDF_MAX XEN_DOMCTL_CDF_trap_unmapped_accesses
 
+#define XEN_DOMCTL_CDF_ALL                                                     
\
+        (XEN_DOMCTL_CDF_hvm | XEN_DOMCTL_CDF_hap |                             
\
+         XEN_DOMCTL_CDF_s3_integrity | XEN_DOMCTL_CDF_oos_off |                
\
+         XEN_DOMCTL_CDF_xs_domain | XEN_DOMCTL_CDF_iommu |                     
\
+         XEN_DOMCTL_CDF_nested_virt | XEN_DOMCTL_CDF_vpmu |                    
\
+         XEN_DOMCTL_CDF_trap_unmapped_accesses)
+
     uint32_t flags;
 
 #define _XEN_DOMCTL_IOMMU_no_sharept  0
-- 
2.34.1