[PATCH v4 18/28] ARM: KVM: Implement HVC_GET_VECTORS in the init code

Marc Zyngier marc.zyngier at arm.com
Tue Mar 21 12:20:48 PDT 2017


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

Tested-by: Keerthy <j-keerthy at ti.com>
Acked-by: Russell King <rmk+kernel at armlinux.org.uk>
Signed-off-by: Marc Zyngier <marc.zyngier at arm.com>
---
 arch/arm/kvm/init.S | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm/kvm/init.S b/arch/arm/kvm/init.S
index 9b0c735a68f7..0da120b71c2e 100644
--- a/arch/arm/kvm/init.S
+++ b/arch/arm/kvm/init.S
@@ -122,7 +122,12 @@ __do_hyp_init:
 	eret
 
 ENTRY(__kvm_handle_stub_hvc)
-	cmp	r0, #HVC_RESET_VECTORS
+	cmp	r0, #HVC_GET_VECTORS
+	bne	1f
+	mrc	p15, 4, r0, c12, c0, 0	@ get HVBAR
+	b	exit
+
+1:	cmp	r0, #HVC_RESET_VECTORS
 	bne	1f
 ENTRY(__kvm_hyp_reset)
 	/* We're now in idmap, disable MMU */
-- 
2.11.0




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