x86/Kconfig: Options for Xen and PVH support

Introduce two options. One to detect whether the binary is running on
Xen, the other enables PVH ABI support.

The former will be useful to PV in HVM approach. Both will be used by
PV in PVH approach.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>

diff --git a/xen/arch/x86/Kconfig b/xen/arch/x86/Kconfig
index 7c4582922f79d457d2b6309db33af94e30d907c5..c0b0bcdcb3ad46c822693f2b5a528083acdcdb6e 100644 (file)
--- a/xen/arch/x86/Kconfig
+++ b/xen/arch/x86/Kconfig
@@ -117,6 +117,23 @@ config TBOOT
          Technology (TXT)
 
          If unsure, say Y.
+
+config XEN_GUEST
+       def_bool n
+       prompt "Xen Guest"
+       ---help---
+         Support for Xen detecting when it is running under Xen.
+
+         If unsure, say N.
+
+config PVH_GUEST
+       def_bool n
+       prompt "PVH Guest"
+       depends on XEN_GUEST
+       ---help---
+         Support booting using the PVH ABI.
+
+         If unsure, say N.
 endmenu
 
 source "common/Kconfig"