350 lines
11 KiB
C
350 lines
11 KiB
C
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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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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright SUSE Linux Products GmbH 2009
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*
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* Authors: Alexander Graf <agraf@suse.de>
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*/
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#ifndef __ASM_KVM_BOOK3S_H__
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#define __ASM_KVM_BOOK3S_H__
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#include <linux/types.h>
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#include <linux/kvm_host.h>
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#include <asm/kvm_book3s_asm.h>
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struct kvmppc_bat {
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u64 raw;
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u32 bepi;
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u32 bepi_mask;
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u32 brpn;
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u8 wimg;
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u8 pp;
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bool vs : 1;
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bool vp : 1;
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};
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struct kvmppc_sid_map {
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u64 guest_vsid;
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u64 guest_esid;
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u64 host_vsid;
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bool valid : 1;
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};
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#define SID_MAP_BITS 9
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#define SID_MAP_NUM (1 << SID_MAP_BITS)
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#define SID_MAP_MASK (SID_MAP_NUM - 1)
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#ifdef CONFIG_PPC_BOOK3S_64
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#define SID_CONTEXTS 1
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#else
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#define SID_CONTEXTS 128
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#define VSID_POOL_SIZE (SID_CONTEXTS * 16)
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#endif
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struct hpte_cache {
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struct hlist_node list_pte;
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struct hlist_node list_pte_long;
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struct hlist_node list_vpte;
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struct hlist_node list_vpte_long;
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#ifdef CONFIG_PPC_BOOK3S_64
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struct hlist_node list_vpte_64k;
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#endif
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struct rcu_head rcu_head;
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u64 host_vpn;
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u64 pfn;
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ulong slot;
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struct kvmppc_pte pte;
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int pagesize;
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};
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/*
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* Struct for a virtual core.
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* Note: entry_exit_map combines a bitmap of threads that have entered
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* in the bottom 8 bits and a bitmap of threads that have exited in the
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* next 8 bits. This is so that we can atomically set the entry bit
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* iff the exit map is 0 without taking a lock.
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*/
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struct kvmppc_vcore {
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int n_runnable;
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int num_threads;
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int entry_exit_map;
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int napping_threads;
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int first_vcpuid;
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u16 pcpu;
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u16 last_cpu;
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u8 vcore_state;
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u8 in_guest;
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struct kvmppc_vcore *master_vcore;
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struct kvm_vcpu *runnable_threads[MAX_SMT_THREADS];
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struct list_head preempt_list;
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spinlock_t lock;
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struct swait_queue_head wq;
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spinlock_t stoltb_lock; /* protects stolen_tb and preempt_tb */
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u64 stolen_tb;
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u64 preempt_tb;
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struct kvm_vcpu *runner;
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struct kvm *kvm;
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u64 tb_offset; /* guest timebase - host timebase */
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ulong lpcr;
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u32 arch_compat;
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ulong pcr;
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ulong dpdes; /* doorbell state (POWER8) */
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ulong vtb; /* virtual timebase */
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ulong conferring_threads;
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unsigned int halt_poll_ns;
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};
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struct kvmppc_vcpu_book3s {
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struct kvmppc_sid_map sid_map[SID_MAP_NUM];
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struct {
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u64 esid;
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u64 vsid;
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} slb_shadow[64];
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u8 slb_shadow_max;
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struct kvmppc_bat ibat[8];
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struct kvmppc_bat dbat[8];
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u64 hid[6];
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u64 gqr[8];
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u64 sdr1;
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u64 hior;
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u64 msr_mask;
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u64 vtb;
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#ifdef CONFIG_PPC_BOOK3S_32
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u32 vsid_pool[VSID_POOL_SIZE];
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u32 vsid_next;
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#else
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u64 proto_vsid_first;
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u64 proto_vsid_max;
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u64 proto_vsid_next;
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#endif
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int context_id[SID_CONTEXTS];
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bool hior_explicit; /* HIOR is set by ioctl, not PVR */
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struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
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struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG];
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struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
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struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG];
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#ifdef CONFIG_PPC_BOOK3S_64
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struct hlist_head hpte_hash_vpte_64k[HPTEG_HASH_NUM_VPTE_64K];
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#endif
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int hpte_cache_count;
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spinlock_t mmu_lock;
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};
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#define VSID_REAL 0x07ffffffffc00000ULL
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#define VSID_BAT 0x07ffffffffb00000ULL
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#define VSID_64K 0x0800000000000000ULL
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#define VSID_1T 0x1000000000000000ULL
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#define VSID_REAL_DR 0x2000000000000000ULL
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#define VSID_REAL_IR 0x4000000000000000ULL
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#define VSID_PR 0x8000000000000000ULL
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extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask);
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extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
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extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end);
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extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
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extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
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extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
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extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu);
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extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte,
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bool iswrite);
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extern void kvmppc_mmu_unmap_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
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extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
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extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size);
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extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
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extern int kvmppc_book3s_hv_page_fault(struct kvm_run *run,
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struct kvm_vcpu *vcpu, unsigned long addr,
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unsigned long status);
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extern long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr,
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unsigned long slb_v, unsigned long valid);
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extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
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extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu);
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extern void kvmppc_mmu_hpte_cache_free(struct hpte_cache *pte);
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extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu);
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extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu);
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extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
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extern int kvmppc_mmu_hpte_sysinit(void);
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extern void kvmppc_mmu_hpte_sysexit(void);
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extern int kvmppc_mmu_hv_init(void);
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extern int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hc);
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/* XXX remove this export when load_last_inst() is generic */
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extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
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extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec);
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extern void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
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unsigned int vec);
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extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags);
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extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat,
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bool upper, u32 val);
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extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
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extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu);
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extern kvm_pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa,
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bool writing, bool *writable);
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extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev,
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unsigned long *rmap, long pte_index, int realmode);
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extern void kvmppc_update_rmap_change(unsigned long *rmap, unsigned long psize);
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extern void kvmppc_invalidate_hpte(struct kvm *kvm, __be64 *hptep,
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unsigned long pte_index);
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void kvmppc_clear_ref_hpte(struct kvm *kvm, __be64 *hptep,
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unsigned long pte_index);
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extern void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long addr,
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unsigned long *nb_ret);
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extern void kvmppc_unpin_guest_page(struct kvm *kvm, void *addr,
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unsigned long gpa, bool dirty);
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extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
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long pte_index, unsigned long pteh, unsigned long ptel,
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pgd_t *pgdir, bool realmode, unsigned long *idx_ret);
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extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags,
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unsigned long pte_index, unsigned long avpn,
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unsigned long *hpret);
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extern long kvmppc_hv_get_dirty_log(struct kvm *kvm,
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struct kvm_memory_slot *memslot, unsigned long *map);
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extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr,
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unsigned long mask);
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extern void kvmppc_set_fscr(struct kvm_vcpu *vcpu, u64 fscr);
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extern void kvmppc_entry_trampoline(void);
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extern void kvmppc_hv_entry_trampoline(void);
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extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
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extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
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extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
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extern void kvmppc_pr_init_default_hcalls(struct kvm *kvm);
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extern int kvmppc_hcall_impl_pr(unsigned long cmd);
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extern int kvmppc_hcall_impl_hv_realmode(unsigned long cmd);
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extern void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu,
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struct kvm_vcpu *vcpu);
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extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
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struct kvmppc_book3s_shadow_vcpu *svcpu);
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extern int kvm_irq_bypass;
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static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
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{
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return vcpu->arch.book3s;
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}
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/* Also add subarch specific defines */
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#ifdef CONFIG_KVM_BOOK3S_32_HANDLER
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#include <asm/kvm_book3s_32.h>
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#endif
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#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
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#include <asm/kvm_book3s_64.h>
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#endif
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static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
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{
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vcpu->arch.gpr[num] = val;
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}
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static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
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{
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return vcpu->arch.gpr[num];
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}
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static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
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{
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vcpu->arch.cr = val;
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}
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static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
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{
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return vcpu->arch.cr;
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}
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static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val)
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{
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vcpu->arch.xer = val;
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}
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static inline ulong kvmppc_get_xer(struct kvm_vcpu *vcpu)
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{
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return vcpu->arch.xer;
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}
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static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
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{
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vcpu->arch.ctr = val;
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}
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static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
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{
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return vcpu->arch.ctr;
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}
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static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
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{
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vcpu->arch.lr = val;
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}
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static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
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{
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return vcpu->arch.lr;
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}
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static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
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{
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vcpu->arch.pc = val;
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}
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static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
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{
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return vcpu->arch.pc;
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}
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static inline u64 kvmppc_get_msr(struct kvm_vcpu *vcpu);
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static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
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{
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return (kvmppc_get_msr(vcpu) & MSR_LE) != (MSR_KERNEL & MSR_LE);
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}
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static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
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{
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return vcpu->arch.fault_dar;
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}
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static inline bool is_kvmppc_resume_guest(int r)
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{
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return (r == RESUME_GUEST || r == RESUME_GUEST_NV);
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|
|
}
|
||
|
|
|
||
|
|
static inline bool is_kvmppc_hv_enabled(struct kvm *kvm);
|
||
|
|
static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
/* Only PR KVM supports the magic page */
|
||
|
|
return !is_kvmppc_hv_enabled(vcpu->kvm);
|
||
|
|
}
|
||
|
|
|
||
|
|
extern int kvmppc_h_logical_ci_load(struct kvm_vcpu *vcpu);
|
||
|
|
extern int kvmppc_h_logical_ci_store(struct kvm_vcpu *vcpu);
|
||
|
|
|
||
|
|
/* Magic register values loaded into r3 and r4 before the 'sc' assembly
|
||
|
|
* instruction for the OSI hypercalls */
|
||
|
|
#define OSI_SC_MAGIC_R3 0x113724FA
|
||
|
|
#define OSI_SC_MAGIC_R4 0x77810F9B
|
||
|
|
|
||
|
|
#define INS_DCBZ 0x7c0007ec
|
||
|
|
/* TO = 31 for unconditional trap */
|
||
|
|
#define INS_TW 0x7fe00008
|
||
|
|
|
||
|
|
/* LPIDs we support with this build -- runtime limit may be lower */
|
||
|
|
#define KVMPPC_NR_LPIDS (LPID_RSVD + 1)
|
||
|
|
|
||
|
|
#define SPLIT_HACK_MASK 0xff000000
|
||
|
|
#define SPLIT_HACK_OFFS 0xfb000000
|
||
|
|
|
||
|
|
#endif /* __ASM_KVM_BOOK3S_H__ */
|