2 * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All rights reserved.
4 * Author: Yu Liu, <yu.liu@freescale.com>
7 * This file is derived from arch/powerpc/include/asm/kvm_44x.h,
8 * by Hollis Blanchard <hollisb@us.ibm.com>.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License, version 2, as
12 * published by the Free Software Foundation.
15 #ifndef __ASM_KVM_E500_H__
16 #define __ASM_KVM_E500_H__
18 #include <linux/kvm_host.h>
20 #define BOOKE_INTERRUPT_SIZE 36
22 #define E500_PID_NUM 3
23 #define E500_TLB_NUM 2
25 #define E500_TLB_VALID 1
26 #define E500_TLB_DIRTY 2
30 unsigned int flags; /* E500_TLB_* */
34 struct tlbe_ref ref; /* TLB0 only -- TLB1 uses tlb_refs */
39 struct kvmppc_e500_tlb_params {
40 int entries, ways, sets;
43 struct kvmppc_vcpu_e500 {
44 /* Unmodified copy of the guest's TLB -- shared with host userspace. */
45 struct kvm_book3e_206_tlb_entry *gtlb_arch;
47 /* Starting entry number in gtlb_arch[] */
48 int gtlb_offset[E500_TLB_NUM];
50 /* KVM internal information associated with each guest TLB entry */
51 struct tlbe_priv *gtlb_priv[E500_TLB_NUM];
53 struct kvmppc_e500_tlb_params gtlb_params[E500_TLB_NUM];
55 unsigned int gtlb_nv[E500_TLB_NUM];
58 * information associated with each host TLB entry --
59 * TLB1 only for now. If/when guest TLB1 entries can be
60 * mapped with host TLB0, this will be used for that too.
62 * We don't want to use this for guest TLB0 because then we'd
63 * have the overhead of doing the translation again even if
64 * the entry is still in the guest TLB (e.g. we swapped out
65 * and back, and our host TLB entries got evicted).
67 struct tlbe_ref *tlb_refs[E500_TLB_NUM];
68 unsigned int host_tlb1_nv;
70 u32 host_pid[E500_PID_NUM];
71 u32 pid[E500_PID_NUM];
75 struct vcpu_id_table *idt;
85 struct page **shared_tlb_pages;
86 int num_shared_tlb_pages;
91 static inline struct kvmppc_vcpu_e500 *to_e500(struct kvm_vcpu *vcpu)
93 return container_of(vcpu, struct kvmppc_vcpu_e500, vcpu);
96 #endif /* __ASM_KVM_E500_H__ */