[Xen-devel] [PATCH 11/12] x86: add domain type flags for domain parameters

[Juergen Gross <jgross@xxxxxxxx>]

Add flags for excluding pv- or hvm-domains for domain parameters.

Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
---
 xen/arch/x86/domain.c        | 5 +++++
 xen/include/asm-x86/domain.h | 6 ++++++
 2 files changed, 11 insertions(+)

diff --git a/xen/arch/x86/domain.c b/xen/arch/x86/domain.c
index 8e57e7a181..557ebd1b87 100644
--- a/xen/arch/x86/domain.c
+++ b/xen/arch/x86/domain.c
@@ -2108,6 +2108,11 @@ __initcall(init_vcpu_kick_softirq);
 
 int arch_domain_check_parflags(struct domain *d, unsigned int flags)
 {
+    if ( flags & (is_hvm_domain(d) ? PARAM_FLAG_NOHVM
+                                   : (is_pv_32bit_domain(d) ?
+                                      PARAM_FLAG_NOPV32 : PARAM_FLAG_NOPV64)) )
+        return -EINVAL;
+
     return 0;
 }
 
diff --git a/xen/include/asm-x86/domain.h b/xen/include/asm-x86/domain.h
index 4da4353de7..57d15ed3cf 100644
--- a/xen/include/asm-x86/domain.h
+++ b/xen/include/asm-x86/domain.h
@@ -286,6 +286,12 @@ struct monitor_write_data {
     uint64_t cr4;
 };
 
+/* Flags for excluding domain types from per-domain parameters. */
+#define PARAM_FLAG_NOHVM   0x00000001
+#define PARAM_FLAG_NOPV32  0x00000002
+#define PARAM_FLAG_NOPV64  0x00000004
+#define PARAM_FLAG_NOPV    (PARAM_FLAG_NOPV32 | PARAM_FLAG_NOPV64)
+
 struct arch_domain
 {
     struct page_info *perdomain_l3_pg;
-- 
2.16.4


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