[PATCH] smccc: kvm_guest: Align with DISCOVER_IMPL_CPUS ABI
From: Oliver Upton
Date: Thu Mar 27 2025 - 12:39:11 EST
The ABI of the hypercall requires that R2 and R3 are 0. Explicitly pass
0 for these parameters.
Cc: Shameer Kolothum <shameerali.kolothum.thodi@xxxxxxxxxx>
Fixes: 86edf6bdcf05 ("smccc/kvm_guest: Enable errata based on implementation CPUs")
Signed-off-by: Oliver Upton <oliver.upton@xxxxxxxxx>
---
drivers/firmware/smccc/kvm_guest.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/firmware/smccc/kvm_guest.c b/drivers/firmware/smccc/kvm_guest.c
index 5767aed25cdc..ac2d3cf8a776 100644
--- a/drivers/firmware/smccc/kvm_guest.c
+++ b/drivers/firmware/smccc/kvm_guest.c
@@ -95,7 +95,7 @@ void __init kvm_arm_target_impl_cpu_init(void)
for (i = 0; i < max_cpus; i++) {
arm_smccc_1_1_invoke(ARM_SMCCC_VENDOR_HYP_KVM_DISCOVER_IMPL_CPUS_FUNC_ID,
- i, &res);
+ i, 0, 0, &res);
if (res.a0 != SMCCC_RET_SUCCESS) {
pr_warn("Discovering target implementation CPUs failed\n");
goto mem_free;
base-commit: 369c0122682c4468a69f2454614eded71c5348f3
--
2.39.5