[PATCH v4 03/13] KVM: arm64: nVHE: Simplify __guest_exit_panic path

[Pierre-Clément Tosi]

In invalid_host_el2_vect (i.e. EL2{t,h} handlers in nVHE guest context),
remove the duplicate vCPU context check that __guest_exit_panic also
performs, allowing an unconditional branch to it.

Signed-off-by: Pierre-Clément Tosi <ptosi at google.com>
---
 arch/arm64/kvm/hyp/nvhe/host.S | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/host.S b/arch/arm64/kvm/hyp/nvhe/host.S
index 135cfb294ee5..71fb311b4c0e 100644
--- a/arch/arm64/kvm/hyp/nvhe/host.S
+++ b/arch/arm64/kvm/hyp/nvhe/host.S
@@ -197,18 +197,13 @@ SYM_FUNC_END(__host_hvc)
 	sub	x0, sp, x0			// x0'' = sp' - x0' = (sp + x0) - sp = x0
 	sub	sp, sp, x0			// sp'' = sp' - x0 = (sp + x0) - x0 = sp
 
-	/* If a guest is loaded, panic out of it. */
-	stp	x0, x1, [sp, #-16]!
-	get_loaded_vcpu x0, x1
-	cbnz	x0, __guest_exit_panic
-	add	sp, sp, #16
-
 	/*
 	 * The panic may not be clean if the exception is taken before the host
 	 * context has been saved by __host_exit or after the hyp context has
 	 * been partially clobbered by __host_enter.
 	 */
-	b	hyp_panic
+	stp	x0, x1, [sp, #-16]!
+	b	__guest_exit_panic
 
 .L__hyp_sp_overflow\@:
 	/* Switch to the overflow stack */
-- 
2.45.1.288.g0e0cd299f1-goog