mirror of https://gitee.com/openkylin/linux.git
350 lines
11 KiB
C
350 lines
11 KiB
C
/*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License, version 2, as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
* Copyright SUSE Linux Products GmbH 2009
|
|
*
|
|
* Authors: Alexander Graf <agraf@suse.de>
|
|
*/
|
|
|
|
#ifndef __ASM_KVM_BOOK3S_H__
|
|
#define __ASM_KVM_BOOK3S_H__
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/kvm_host.h>
|
|
#include <asm/kvm_book3s_asm.h>
|
|
|
|
struct kvmppc_bat {
|
|
u64 raw;
|
|
u32 bepi;
|
|
u32 bepi_mask;
|
|
u32 brpn;
|
|
u8 wimg;
|
|
u8 pp;
|
|
bool vs : 1;
|
|
bool vp : 1;
|
|
};
|
|
|
|
struct kvmppc_sid_map {
|
|
u64 guest_vsid;
|
|
u64 guest_esid;
|
|
u64 host_vsid;
|
|
bool valid : 1;
|
|
};
|
|
|
|
#define SID_MAP_BITS 9
|
|
#define SID_MAP_NUM (1 << SID_MAP_BITS)
|
|
#define SID_MAP_MASK (SID_MAP_NUM - 1)
|
|
|
|
#ifdef CONFIG_PPC_BOOK3S_64
|
|
#define SID_CONTEXTS 1
|
|
#else
|
|
#define SID_CONTEXTS 128
|
|
#define VSID_POOL_SIZE (SID_CONTEXTS * 16)
|
|
#endif
|
|
|
|
struct hpte_cache {
|
|
struct hlist_node list_pte;
|
|
struct hlist_node list_pte_long;
|
|
struct hlist_node list_vpte;
|
|
struct hlist_node list_vpte_long;
|
|
#ifdef CONFIG_PPC_BOOK3S_64
|
|
struct hlist_node list_vpte_64k;
|
|
#endif
|
|
struct rcu_head rcu_head;
|
|
u64 host_vpn;
|
|
u64 pfn;
|
|
ulong slot;
|
|
struct kvmppc_pte pte;
|
|
int pagesize;
|
|
};
|
|
|
|
/*
|
|
* Struct for a virtual core.
|
|
* Note: entry_exit_map combines a bitmap of threads that have entered
|
|
* in the bottom 8 bits and a bitmap of threads that have exited in the
|
|
* next 8 bits. This is so that we can atomically set the entry bit
|
|
* iff the exit map is 0 without taking a lock.
|
|
*/
|
|
struct kvmppc_vcore {
|
|
int n_runnable;
|
|
int num_threads;
|
|
int entry_exit_map;
|
|
int napping_threads;
|
|
int first_vcpuid;
|
|
u16 pcpu;
|
|
u16 last_cpu;
|
|
u8 vcore_state;
|
|
u8 in_guest;
|
|
struct kvmppc_vcore *master_vcore;
|
|
struct kvm_vcpu *runnable_threads[MAX_SMT_THREADS];
|
|
struct list_head preempt_list;
|
|
spinlock_t lock;
|
|
struct swait_queue_head wq;
|
|
spinlock_t stoltb_lock; /* protects stolen_tb and preempt_tb */
|
|
u64 stolen_tb;
|
|
u64 preempt_tb;
|
|
struct kvm_vcpu *runner;
|
|
struct kvm *kvm;
|
|
u64 tb_offset; /* guest timebase - host timebase */
|
|
ulong lpcr;
|
|
u32 arch_compat;
|
|
ulong pcr;
|
|
ulong dpdes; /* doorbell state (POWER8) */
|
|
ulong vtb; /* virtual timebase */
|
|
ulong conferring_threads;
|
|
unsigned int halt_poll_ns;
|
|
};
|
|
|
|
struct kvmppc_vcpu_book3s {
|
|
struct kvmppc_sid_map sid_map[SID_MAP_NUM];
|
|
struct {
|
|
u64 esid;
|
|
u64 vsid;
|
|
} slb_shadow[64];
|
|
u8 slb_shadow_max;
|
|
struct kvmppc_bat ibat[8];
|
|
struct kvmppc_bat dbat[8];
|
|
u64 hid[6];
|
|
u64 gqr[8];
|
|
u64 sdr1;
|
|
u64 hior;
|
|
u64 msr_mask;
|
|
u64 vtb;
|
|
#ifdef CONFIG_PPC_BOOK3S_32
|
|
u32 vsid_pool[VSID_POOL_SIZE];
|
|
u32 vsid_next;
|
|
#else
|
|
u64 proto_vsid_first;
|
|
u64 proto_vsid_max;
|
|
u64 proto_vsid_next;
|
|
#endif
|
|
int context_id[SID_CONTEXTS];
|
|
|
|
bool hior_explicit; /* HIOR is set by ioctl, not PVR */
|
|
|
|
struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
|
|
struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG];
|
|
struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
|
|
struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG];
|
|
#ifdef CONFIG_PPC_BOOK3S_64
|
|
struct hlist_head hpte_hash_vpte_64k[HPTEG_HASH_NUM_VPTE_64K];
|
|
#endif
|
|
int hpte_cache_count;
|
|
spinlock_t mmu_lock;
|
|
};
|
|
|
|
#define VSID_REAL 0x07ffffffffc00000ULL
|
|
#define VSID_BAT 0x07ffffffffb00000ULL
|
|
#define VSID_64K 0x0800000000000000ULL
|
|
#define VSID_1T 0x1000000000000000ULL
|
|
#define VSID_REAL_DR 0x2000000000000000ULL
|
|
#define VSID_REAL_IR 0x4000000000000000ULL
|
|
#define VSID_PR 0x8000000000000000ULL
|
|
|
|
extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask);
|
|
extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
|
|
extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end);
|
|
extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
|
|
extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
|
|
extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
|
|
extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu);
|
|
extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte,
|
|
bool iswrite);
|
|
extern void kvmppc_mmu_unmap_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
|
|
extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
|
|
extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size);
|
|
extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
|
|
extern int kvmppc_book3s_hv_page_fault(struct kvm_run *run,
|
|
struct kvm_vcpu *vcpu, unsigned long addr,
|
|
unsigned long status);
|
|
extern long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr,
|
|
unsigned long slb_v, unsigned long valid);
|
|
|
|
extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
|
|
extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu);
|
|
extern void kvmppc_mmu_hpte_cache_free(struct hpte_cache *pte);
|
|
extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu);
|
|
extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu);
|
|
extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
|
|
extern int kvmppc_mmu_hpte_sysinit(void);
|
|
extern void kvmppc_mmu_hpte_sysexit(void);
|
|
extern int kvmppc_mmu_hv_init(void);
|
|
extern int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hc);
|
|
|
|
/* XXX remove this export when load_last_inst() is generic */
|
|
extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
|
|
extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec);
|
|
extern void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
|
|
unsigned int vec);
|
|
extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags);
|
|
extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat,
|
|
bool upper, u32 val);
|
|
extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
|
|
extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu);
|
|
extern kvm_pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa,
|
|
bool writing, bool *writable);
|
|
extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev,
|
|
unsigned long *rmap, long pte_index, int realmode);
|
|
extern void kvmppc_update_rmap_change(unsigned long *rmap, unsigned long psize);
|
|
extern void kvmppc_invalidate_hpte(struct kvm *kvm, __be64 *hptep,
|
|
unsigned long pte_index);
|
|
void kvmppc_clear_ref_hpte(struct kvm *kvm, __be64 *hptep,
|
|
unsigned long pte_index);
|
|
extern void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long addr,
|
|
unsigned long *nb_ret);
|
|
extern void kvmppc_unpin_guest_page(struct kvm *kvm, void *addr,
|
|
unsigned long gpa, bool dirty);
|
|
extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
|
|
long pte_index, unsigned long pteh, unsigned long ptel,
|
|
pgd_t *pgdir, bool realmode, unsigned long *idx_ret);
|
|
extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags,
|
|
unsigned long pte_index, unsigned long avpn,
|
|
unsigned long *hpret);
|
|
extern long kvmppc_hv_get_dirty_log(struct kvm *kvm,
|
|
struct kvm_memory_slot *memslot, unsigned long *map);
|
|
extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr,
|
|
unsigned long mask);
|
|
extern void kvmppc_set_fscr(struct kvm_vcpu *vcpu, u64 fscr);
|
|
|
|
extern void kvmppc_entry_trampoline(void);
|
|
extern void kvmppc_hv_entry_trampoline(void);
|
|
extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
|
|
extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
|
|
extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
|
|
extern void kvmppc_pr_init_default_hcalls(struct kvm *kvm);
|
|
extern int kvmppc_hcall_impl_pr(unsigned long cmd);
|
|
extern int kvmppc_hcall_impl_hv_realmode(unsigned long cmd);
|
|
extern void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu,
|
|
struct kvm_vcpu *vcpu);
|
|
extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
|
|
struct kvmppc_book3s_shadow_vcpu *svcpu);
|
|
extern int kvm_irq_bypass;
|
|
|
|
static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
|
|
{
|
|
return vcpu->arch.book3s;
|
|
}
|
|
|
|
/* Also add subarch specific defines */
|
|
|
|
#ifdef CONFIG_KVM_BOOK3S_32_HANDLER
|
|
#include <asm/kvm_book3s_32.h>
|
|
#endif
|
|
#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
|
|
#include <asm/kvm_book3s_64.h>
|
|
#endif
|
|
|
|
static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
|
|
{
|
|
vcpu->arch.gpr[num] = val;
|
|
}
|
|
|
|
static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
|
|
{
|
|
return vcpu->arch.gpr[num];
|
|
}
|
|
|
|
static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
|
|
{
|
|
vcpu->arch.cr = val;
|
|
}
|
|
|
|
static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
|
|
{
|
|
return vcpu->arch.cr;
|
|
}
|
|
|
|
static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val)
|
|
{
|
|
vcpu->arch.xer = val;
|
|
}
|
|
|
|
static inline ulong kvmppc_get_xer(struct kvm_vcpu *vcpu)
|
|
{
|
|
return vcpu->arch.xer;
|
|
}
|
|
|
|
static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
|
|
{
|
|
vcpu->arch.ctr = val;
|
|
}
|
|
|
|
static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
|
|
{
|
|
return vcpu->arch.ctr;
|
|
}
|
|
|
|
static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
|
|
{
|
|
vcpu->arch.lr = val;
|
|
}
|
|
|
|
static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
|
|
{
|
|
return vcpu->arch.lr;
|
|
}
|
|
|
|
static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
|
|
{
|
|
vcpu->arch.pc = val;
|
|
}
|
|
|
|
static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
|
|
{
|
|
return vcpu->arch.pc;
|
|
}
|
|
|
|
static inline u64 kvmppc_get_msr(struct kvm_vcpu *vcpu);
|
|
static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
|
|
{
|
|
return (kvmppc_get_msr(vcpu) & MSR_LE) != (MSR_KERNEL & MSR_LE);
|
|
}
|
|
|
|
static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
|
|
{
|
|
return vcpu->arch.fault_dar;
|
|
}
|
|
|
|
static inline bool is_kvmppc_resume_guest(int r)
|
|
{
|
|
return (r == RESUME_GUEST || r == RESUME_GUEST_NV);
|
|
}
|
|
|
|
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__ */
|