change otg to host mode

hc

2024-05-11 04dd17822334871b23ea2862f7798fb0e0007777

 kernel/arch/powerpc/kvm/e500.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All rights reserved.
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  *
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@@ -6,10 +7,6 @@
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  * Description:
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  * This file is derived from arch/powerpc/kvm/44x.c,
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  * by Hollis Blanchard <hollisb@us.ibm.com>.
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License, version 2, as
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- * published by the Free Software Foundation.
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  */
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 #include <linux/kvm_host.h>
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@@ -436,28 +433,16 @@
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 	return r;
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 }
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-static struct kvm_vcpu *kvmppc_core_vcpu_create_e500(struct kvm *kvm,
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-						     unsigned int id)
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+static int kvmppc_core_vcpu_create_e500(struct kvm_vcpu *vcpu)
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 {
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 	struct kvmppc_vcpu_e500 *vcpu_e500;
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-	struct kvm_vcpu *vcpu;
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 	int err;
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-	vcpu_e500 = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
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-	if (!vcpu_e500) {
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-		err = -ENOMEM;
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-		goto out;
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-	}
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+	BUILD_BUG_ON(offsetof(struct kvmppc_vcpu_e500, vcpu) != 0);
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+	vcpu_e500 = to_e500(vcpu);
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-	vcpu = &vcpu_e500->vcpu;
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-	err = kvm_vcpu_init(vcpu, kvm, id);
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-	if (err)
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-		goto free_vcpu;
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-
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-	if (kvmppc_e500_id_table_alloc(vcpu_e500) == NULL) {
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-		err = -ENOMEM;
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-		goto uninit_vcpu;
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-	}
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+	if (kvmppc_e500_id_table_alloc(vcpu_e500) == NULL)
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+		return -ENOMEM;
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 	err = kvmppc_e500_tlb_init(vcpu_e500);
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 	if (err)
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@@ -469,18 +454,13 @@
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 		goto uninit_tlb;
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 	}
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-	return vcpu;
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+	return 0;
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 uninit_tlb:
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 	kvmppc_e500_tlb_uninit(vcpu_e500);
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 uninit_id:
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 	kvmppc_e500_id_table_free(vcpu_e500);
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-uninit_vcpu:
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-	kvm_vcpu_uninit(vcpu);
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-free_vcpu:
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-	kmem_cache_free(kvm_vcpu_cache, vcpu_e500);
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-out:
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-	return ERR_PTR(err);
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+	return err;
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 }
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 static void kvmppc_core_vcpu_free_e500(struct kvm_vcpu *vcpu)
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@@ -490,8 +470,6 @@
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 	free_page((unsigned long)vcpu->arch.shared);
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 	kvmppc_e500_tlb_uninit(vcpu_e500);
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 	kvmppc_e500_id_table_free(vcpu_e500);
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-	kvm_vcpu_uninit(vcpu);
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-	kmem_cache_free(kvm_vcpu_cache, vcpu_e500);
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 }
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 static int kvmppc_core_init_vm_e500(struct kvm *kvm)
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@@ -512,7 +490,6 @@
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 	.vcpu_put    = kvmppc_core_vcpu_put_e500,
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 	.vcpu_create = kvmppc_core_vcpu_create_e500,
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 	.vcpu_free   = kvmppc_core_vcpu_free_e500,
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-	.mmu_destroy  = kvmppc_mmu_destroy_e500,
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 	.init_vm = kvmppc_core_init_vm_e500,
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 	.destroy_vm = kvmppc_core_destroy_vm_e500,
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 	.emulate_op = kvmppc_core_emulate_op_e500,