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[RFC,v2,47/58] KVM: arm64: Add macro for SMCCC call with all returns

Message ID 20241212180423.1578358-48-smostafa@google.com (mailing list archive)
State New
Headers show
Series KVM: Arm SMMUv3 driver for pKVM | expand

Commit Message

Mostafa Saleh Dec. 12, 2024, 6:04 p.m. UTC 
Add a macro that returns SMCCC returns from a hypercall.

Signed-off-by: Mostafa Saleh <smostafa@google.com>
---
 arch/arm64/include/asm/kvm_host.h | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)
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Patch

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 59a23828bd0e..3cdc99ebdd0d 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -1248,7 +1248,18 @@  void kvm_arm_resume_guest(struct kvm *kvm);
 #define vcpu_has_run_once(vcpu)	!!rcu_access_pointer((vcpu)->pid)
 
 #ifndef __KVM_NVHE_HYPERVISOR__
-#define kvm_call_hyp_nvhe(f, ...)						\
+#define kvm_call_hyp_nvhe_smccc(f, ...)					\
+	({								\
+		struct arm_smccc_res res;				\
+									\
+		arm_smccc_1_1_hvc(KVM_HOST_SMCCC_FUNC(f),		\
+				  ##__VA_ARGS__, &res);			\
+		WARN_ON(res.a0 != SMCCC_RET_SUCCESS);			\
+									\
+		res;							\
+	})
+
+#define kvm_call_hyp_nvhe(f, ...)					\
 	({								\
 		struct arm_smccc_res res;				\
 									\