1 files changed, 0 insertions, 56 deletions
diff --git a/tools/testing/selftests/kvm/lib/s390x/ucall.c b/tools/testing/selftests/kvm/lib/s390x/ucall.c
deleted file mode 100644
index fd589dc9bfab..000000000000
--- a/tools/testing/selftests/kvm/lib/s390x/ucall.c
+++ /dev/null
@@ -1,56 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * ucall support. A ucall is a "hypercall to userspace".
- *
- * Copyright (C) 2019 Red Hat, Inc.
- */
-#include "kvm_util.h"
-
-void ucall_init(struct kvm_vm *vm, void *arg)
-{
-}
-
-void ucall_uninit(struct kvm_vm *vm)
-{
-}
-
-void ucall(uint64_t cmd, int nargs, ...)
-{
-	struct ucall uc = {
-		.cmd = cmd,
-	};
-	va_list va;
-	int i;
-
-	nargs = nargs <= UCALL_MAX_ARGS ? nargs : UCALL_MAX_ARGS;
-
-	va_start(va, nargs);
-	for (i = 0; i < nargs; ++i)
-		uc.args[i] = va_arg(va, uint64_t);
-	va_end(va);
-
-	/* Exit via DIAGNOSE 0x501 (normally used for breakpoints) */
-	asm volatile ("diag 0,%0,0x501" : : "a"(&uc) : "memory");
-}
-
-uint64_t get_ucall(struct kvm_vm *vm, uint32_t vcpu_id, struct ucall *uc)
-{
-	struct kvm_run *run = vcpu_state(vm, vcpu_id);
-	struct ucall ucall = {};
-
-	if (run->exit_reason == KVM_EXIT_S390_SIEIC &&
-	    run->s390_sieic.icptcode == 4 &&
-	    (run->s390_sieic.ipa >> 8) == 0x83 &&    /* 0x83 means DIAGNOSE */
-	    (run->s390_sieic.ipb >> 16) == 0x501) {
-		int reg = run->s390_sieic.ipa & 0xf;
-
-		memcpy(&ucall, addr_gva2hva(vm, run->s.regs.gprs[reg]),
-		       sizeof(ucall));
-
-		vcpu_run_complete_io(vm, vcpu_id);
-		if (uc)
-			memcpy(uc, &ucall, sizeof(ucall));
-	}
-
-	return ucall.cmd;
-}