Define a standard return value to be returned when a hyp stub
call fails.
Signed-off-by: Marc Zyngier <[email protected]>
---
arch/arm/include/asm/virt.h | 2 ++
arch/arm/kernel/hyp-stub.S | 2 +-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/virt.h b/arch/arm/include/asm/virt.h
index 4ea16fcaf2ed..c16f70d6953f 100644
--- a/arch/arm/include/asm/virt.h
+++ b/arch/arm/include/asm/virt.h
@@ -104,4 +104,6 @@ extern char __hyp_text_end[];
#endif /* __ASSEMBLY__ */
+#define HVC_STUB_ERR 0xbadca11
+
#endif /* ! VIRT_H */
diff --git a/arch/arm/kernel/hyp-stub.S b/arch/arm/kernel/hyp-stub.S
index 15eaa14322a7..b20ca8815911 100644
--- a/arch/arm/kernel/hyp-stub.S
+++ b/arch/arm/kernel/hyp-stub.S
@@ -216,7 +216,7 @@ __hyp_stub_do_trap:
bne 1f
bx r1
-1: mov r0, #-1
+1: ldr r0, =HVC_STUB_ERR
__hyp_stub_exit:
__ERET
--
2.11.0
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