[PATCH v4 06/28] arm64: KVM: Implement HVC_GET_VECTORS in the init code

Marc Zyngier
2017-03-21T19:20:36Z

Now that we have an infrastructure to handle hypercalls in the KVM
init code, let's implement HVC_GET_VECTORS there.

Reviewed-by: James Morse <james.morse@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
arch/arm64/kvm/hyp-init.S | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp-init.S b/arch/arm64/kvm/hyp-init.S
index 6cf98ccd10f2..1d89995378e9 100644
--- a/arch/arm64/kvm/hyp-init.S
+++ b/arch/arm64/kvm/hyp-init.S
@@ -124,7 +124,12 @@ __do_hyp_init:
ENDPROC(__kvm_hyp_init)

ENTRY(__kvm_handle_stub_hvc)
- cmp x0, #HVC_RESET_VECTORS
+ cmp x0, #HVC_GET_VECTORS
+ b.ne 1f
+ mrs x0, vbar_el2
+ b exit
+
+1: cmp x0, #HVC_RESET_VECTORS
b.ne 1f
/*
* Reset kvm back to the hyp stub.
--
2.11.0