cregit-Linux how code gets into the kernel

Release 4.14 arch/powerpc/include/asm/kvm_book3s.h

/*
 * 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 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 int kvmppc_hv_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu,
			unsigned long gpa, gva_t ea, int is_store);

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);

extern int kvmppc_book3s_radix_page_fault(struct kvm_run *run,
			struct kvm_vcpu *vcpu,
			unsigned long ea, unsigned long dsisr);
extern int kvmppc_mmu_radix_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
			struct kvmppc_pte *gpte, bool data, bool iswrite);
extern int kvmppc_init_vm_radix(struct kvm *kvm);
extern void kvmppc_free_radix(struct kvm *kvm);
extern int kvmppc_radix_init(void);
extern void kvmppc_radix_exit(void);
extern int kvm_unmap_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
			unsigned long gfn);
extern int kvm_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
			unsigned long gfn);
extern int kvm_test_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
			unsigned long gfn);
extern long kvmppc_hv_get_dirty_log_radix(struct kvm *kvm,
			struct kvm_memory_slot *memslot, unsigned long *map);
extern int kvmhv_get_rmmu_info(struct kvm *kvm, struct kvm_ppc_rmmu_info *info);

/* 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_hpt(struct kvm *kvm,
			struct kvm_memory_slot *memslot, unsigned long *map);
extern void kvmppc_harvest_vpa_dirty(struct kvmppc_vpa *vpa,
			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; }

Contributors

PersonTokensPropCommitsCommitProp
Alexander Graf1780.95%150.00%
Paul Mackerras419.05%150.00%
Total21100.00%2100.00%

/* 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; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras29100.00%1100.00%
Total29100.00%1100.00%


static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num) { return vcpu->arch.gpr[num]; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras25100.00%1100.00%
Total25100.00%1100.00%


static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val) { vcpu->arch.cr = val; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras23100.00%1100.00%
Total23100.00%1100.00%


static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) { return vcpu->arch.cr; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras19100.00%1100.00%
Total19100.00%1100.00%


static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val) { vcpu->arch.xer = val; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras2295.65%150.00%
Sam Bobroff14.35%150.00%
Total23100.00%2100.00%


static inline ulong kvmppc_get_xer(struct kvm_vcpu *vcpu) { return vcpu->arch.xer; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras1894.74%150.00%
Sam Bobroff15.26%150.00%
Total19100.00%2100.00%


static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val) { vcpu->arch.ctr = val; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras23100.00%1100.00%
Total23100.00%1100.00%


static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu) { return vcpu->arch.ctr; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras19100.00%1100.00%
Total19100.00%1100.00%


static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val) { vcpu->arch.lr = val; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras23100.00%1100.00%
Total23100.00%1100.00%


static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu) { return vcpu->arch.lr; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras19100.00%1100.00%
Total19100.00%1100.00%


static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val) { vcpu->arch.pc = val; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras23100.00%1100.00%
Total23100.00%1100.00%


static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu) { return vcpu->arch.pc; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras19100.00%1100.00%
Total19100.00%1100.00%

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); }

Contributors

PersonTokensPropCommitsCommitProp
Cédric Le Goater1657.14%133.33%
Paul Mackerras932.14%133.33%
Alexander Graf310.71%133.33%
Total28100.00%3100.00%


static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu) { return vcpu->arch.fault_dar; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras1894.74%150.00%
Greg Kurz15.26%150.00%
Total19100.00%2100.00%


static inline bool is_kvmppc_resume_guest(int r) { return (r == RESUME_GUEST || r == RESUME_GUEST_NV); }

Contributors

PersonTokensPropCommitsCommitProp
Greg Kurz2095.24%150.00%
Paul Mackerras14.76%150.00%
Total21100.00%2100.00%

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); }

Contributors

PersonTokensPropCommitsCommitProp
Alexander Graf22100.00%1100.00%
Total22100.00%1100.00%

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__ */

Overall Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras104554.65%2941.43%
Alexander Graf67435.25%2738.57%
Suraj Jitindar Singh965.02%34.29%
Benjamin Herrenschmidt221.15%22.86%
Greg Kurz211.10%11.43%
David Gibson201.05%11.43%
Cédric Le Goater160.84%11.43%
Scott Wood50.26%11.43%
Bharat Bhushan50.26%11.43%
Suresh E. Warrier40.21%11.43%
Sam Bobroff20.10%11.43%
Aneesh Kumar K.V10.05%11.43%
Dan J Williams10.05%11.43%
Total1912100.00%70100.00%
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.