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[Xen-devel] [PATCH 1/2] xen: arm: correct platform detection in public header.

These headers cannot use the CONFIG_FOO defines provided when building Xen
(since they aren't provided when building tools or by external components) and
need to use the compiler provided architecture defines.

This manifested itself as a failure to build xenctx.c on ARM64 due to the
missing symbols contains .

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
 xen/include/public/arch-arm.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/xen/include/public/arch-arm.h b/xen/include/public/arch-arm.h
index 746df8e..2f5ce18 100644
--- a/xen/include/public/arch-arm.h
+++ b/xen/include/public/arch-arm.h
@@ -218,7 +218,7 @@ typedef uint64_t xen_callback_t;
 #define PSR_MODE_SYS 0x1f
 /* 64 bit modes */
-#ifdef CONFIG_ARM_64
+#ifdef __aarch64__
 #define PSR_MODE_BIT  0x10 /* Set iff AArch32 */
 #define PSR_MODE_EL3h 0x0d
 #define PSR_MODE_EL3t 0x0c

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