[Xen-devel] [PATCH] xen: arm: take FIQ exceptoons to Xen not guest by setting HCR_EL2.FMO

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

So far none of the platforms which we support use FIQ for anything, but when we
end up supporting one it would be far better to surprise Xen with them than
whatever guest happens to be running...

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
 xen/arch/arm/traps.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/xen/arch/arm/traps.c b/xen/arch/arm/traps.c
index 333d5c0..88292a5 100644
--- a/xen/arch/arm/traps.c
+++ b/xen/arch/arm/traps.c
@@ -89,8 +89,8 @@ void __cpuinit init_traps(void)
                  CPTR_EL2);
 
     /* Setup hypervisor traps */
-    WRITE_SYSREG(HCR_PTW|HCR_BSU_INNER|HCR_AMO|HCR_IMO|HCR_VM|HCR_TWI|HCR_TSC|
-                 HCR_TAC|HCR_SWIO|HCR_TIDCP, HCR_EL2);
+    WRITE_SYSREG(HCR_PTW|HCR_BSU_INNER|HCR_AMO|HCR_IMO|HCR_FMO|HCR_VM|
+                 HCR_TWI|HCR_TSC|HCR_TAC|HCR_SWIO|HCR_TIDCP, HCR_EL2);
     isb();
 }
 
-- 
1.7.10.4


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