[PATCH 03/14] arm64: KVM: Drop VHE-specific HYP call stub

Christoffer Dall
2019-01-24T14:00:21Z

From: Marc Zyngier <marc.zyngier@arm.com>

We now call VHE code directly, without going through any central
dispatching function. Let's drop that code.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Christoffer Dall <christoffer.dall@arm.com>
---
arch/arm64/kvm/hyp.S | 3 ---
arch/arm64/kvm/hyp/hyp-entry.S | 12 ------------
2 files changed, 15 deletions(-)

diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S
index 952f6cb9cf72..2845aa680841 100644
--- a/arch/arm64/kvm/hyp.S
+++ b/arch/arm64/kvm/hyp.S
@@ -40,9 +40,6 @@
* arch/arm64/kernel/hyp_stub.S.
*/
ENTRY(__kvm_call_hyp)
-alternative_if_not ARM64_HAS_VIRT_HOST_EXTN
hvc #0
ret
-alternative_else_nop_endif
- b __vhe_hyp_call
ENDPROC(__kvm_call_hyp)
diff --git a/arch/arm64/kvm/hyp/hyp-entry.S b/arch/arm64/kvm/hyp/hyp-entry.S
index 73c1b483ec39..2b1e686772bf 100644
--- a/arch/arm64/kvm/hyp/hyp-entry.S
+++ b/arch/arm64/kvm/hyp/hyp-entry.S
@@ -43,18 +43,6 @@
ldr lr, [sp], #16
.endm

-ENTRY(__vhe_hyp_call)
- do_el2_call
- /*
- * We used to rely on having an exception return to get
- * an implicit isb. In the E2H case, we don't have it anymore.
- * rather than changing all the leaf functions, just do it here
- * before returning to the rest of the kernel.
- */
- isb
- ret
-ENDPROC(__vhe_hyp_call)
-
el1_sync: // Guest trapped into EL2

mrs x0, esr_el2
--
2.18.0