[PATCH] x86: Make sure E820_PM[AE]M are defined if needed

[Simon Horman]

It appears that (older?) revisions of xenctl.h define
all of the E820_* values used in kexec-x86-common.c except
E820_PMAM and E820_PMEM. This results in a build failure when
building against libxenctl.

Avoid this problem by providing local definitions of those values.

It seems reasonable to do so in the kexec-x86-common.c as
currently that is the only source file that uses the values in question.

Fixes: 56a12abc1df1 ("kexec: fix mmap return code handling")
Cc: Michael Holzheu <holzheu at linux.vnet.ibm.com>
Cc: Petr Tesarik <ptesarik at suse.com>
Cc: Baoquan He <bhe at redhat.com>
Signed-off-by: Simon Horman <horms at verge.net.au>
---
 kexec/arch/i386/kexec-x86-common.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/kexec/arch/i386/kexec-x86-common.c b/kexec/arch/i386/kexec-x86-common.c
index b308e4719503..3e97239c0c78 100644
--- a/kexec/arch/i386/kexec-x86-common.c
+++ b/kexec/arch/i386/kexec-x86-common.c
@@ -44,6 +44,12 @@
 #include <xenctrl.h>
 #endif /* HAVE_LIBXENCTRL */
 
+/* Used below but not present in (older?) xenctrl.h */
+#ifndef E820_PMEM
+#define E820_PMEM         7
+#define E820_PRAM         12
+#endif
+
 static struct memory_range memory_range[MAX_MEMORY_RANGES];
 
 /**
-- 
2.1.4