cregit-Linux how code gets into the kernel

Release 4.14 arch/powerpc/include/asm/kvm_ppc.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 IBM Corp. 2008
 *
 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
 */

#ifndef __POWERPC_KVM_PPC_H__

#define __POWERPC_KVM_PPC_H__

/* This file exists just so we can dereference kvm_vcpu, avoiding nested header
 * dependencies. */

#include <linux/mutex.h>
#include <linux/timer.h>
#include <linux/types.h>
#include <linux/kvm_types.h>
#include <linux/kvm_host.h>
#include <linux/bug.h>
#ifdef CONFIG_PPC_BOOK3S
#include <asm/kvm_book3s.h>
#else
#include <asm/kvm_booke.h>
#endif
#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
#include <asm/paca.h>
#endif

/*
 * KVMPPC_INST_SW_BREAKPOINT is debug Instruction
 * for supporting software breakpoint.
 */

#define KVMPPC_INST_SW_BREAKPOINT	0x00dddd00


enum emulation_result {
	
EMULATE_DONE,         /* no further processing */
	
EMULATE_DO_MMIO,      /* kvm_run filled with MMIO request */
	
EMULATE_FAIL,         /* can't emulate this instruction */
	
EMULATE_AGAIN,        /* something went wrong. go again */
	
EMULATE_EXIT_USER,    /* emulation requires exit to user-space */
};


enum instruction_type {
	
INST_GENERIC,
	
INST_SC,		/* system call */
};


enum xlate_instdata {
	
XLATE_INST,		/* translate instruction address */
	
XLATE_DATA		/* translate data address */
};


enum xlate_readwrite {
	
XLATE_READ,		/* check for read permissions */
	
XLATE_WRITE		/* check for write permissions */
};

extern int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
extern void kvmppc_handler_highmem(void);

extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu);
extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
                              unsigned int rt, unsigned int bytes,
			      int is_default_endian);
extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
                               unsigned int rt, unsigned int bytes,
			       int is_default_endian);
extern int kvmppc_handle_vsx_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
				unsigned int rt, unsigned int bytes,
			int is_default_endian, int mmio_sign_extend);
extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
			       u64 val, unsigned int bytes,
			       int is_default_endian);
extern int kvmppc_handle_vsx_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
				int rs, unsigned int bytes,
				int is_default_endian);

extern int kvmppc_load_last_inst(struct kvm_vcpu *vcpu,
				 enum instruction_type type, u32 *inst);

extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
		     bool data);
extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
		     bool data);
extern int kvmppc_emulate_instruction(struct kvm_run *run,
                                      struct kvm_vcpu *vcpu);
extern int kvmppc_emulate_loadstore(struct kvm_vcpu *vcpu);
extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu);
extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu);
extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb);
extern void kvmppc_decrementer_func(struct kvm_vcpu *vcpu);
extern int kvmppc_sanity_check(struct kvm_vcpu *vcpu);
extern int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu);
extern void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu);

/* Core-specific hooks */

extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
                           unsigned int gtlb_idx);
extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid);
extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu);
extern int kvmppc_mmu_init(struct kvm_vcpu *vcpu);
extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,
                              gva_t eaddr);
extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu);
extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu);
extern int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr,
			enum xlate_instdata xlid, enum xlate_readwrite xlrw,
			struct kvmppc_pte *pte);

extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm,
                                                unsigned int id);
extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu);
extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu);
extern int kvmppc_core_check_processor_compat(void);
extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
                                      struct kvm_translation *tr);

extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu);

extern int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu);
extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu);
extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags);
extern void kvmppc_core_queue_fpunavail(struct kvm_vcpu *vcpu);
extern void kvmppc_core_queue_vec_unavail(struct kvm_vcpu *vcpu);
extern void kvmppc_core_queue_vsx_unavail(struct kvm_vcpu *vcpu);
extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu);
extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu);
extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
                                       struct kvm_interrupt *irq);
extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu);
extern void kvmppc_core_queue_dtlb_miss(struct kvm_vcpu *vcpu, ulong dear_flags,
					ulong esr_flags);
extern void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu,
					   ulong dear_flags,
					   ulong esr_flags);
extern void kvmppc_core_queue_itlb_miss(struct kvm_vcpu *vcpu);
extern void kvmppc_core_queue_inst_storage(struct kvm_vcpu *vcpu,
					   ulong esr_flags);
extern void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu);
extern int kvmppc_core_check_requests(struct kvm_vcpu *vcpu);

extern int kvmppc_booke_init(void);
extern void kvmppc_booke_exit(void);

extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu);
extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu);
extern void kvmppc_map_magic(struct kvm_vcpu *vcpu);

extern int kvmppc_allocate_hpt(struct kvm_hpt_info *info, u32 order);
extern void kvmppc_set_hpt(struct kvm *kvm, struct kvm_hpt_info *info);
extern long kvmppc_alloc_reset_hpt(struct kvm *kvm, int order);
extern void kvmppc_free_hpt(struct kvm_hpt_info *info);
extern long kvmppc_prepare_vrma(struct kvm *kvm,
				struct kvm_userspace_memory_region *mem);
extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu,
			struct kvm_memory_slot *memslot, unsigned long porder);
extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu);
extern long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd,
		struct iommu_group *grp);
extern void kvm_spapr_tce_release_iommu_group(struct kvm *kvm,
		struct iommu_group *grp);

extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
				struct kvm_create_spapr_tce_64 *args);
extern struct kvmppc_spapr_tce_table *kvmppc_find_table(
		struct kvm *kvm, unsigned long liobn);

#define kvmppc_ioba_validate(stt, ioba, npages)                         \
		(iommu_tce_check_ioba((stt)->page_shift, (stt)->offset, \
                                (stt)->size, (ioba), (npages)) ?        \
                                H_PARAMETER : H_SUCCESS)
extern long kvmppc_tce_validate(struct kvmppc_spapr_tce_table *tt,
		unsigned long tce);
extern long kvmppc_gpa_to_ua(struct kvm *kvm, unsigned long gpa,
		unsigned long *ua, unsigned long **prmap);
extern void kvmppc_tce_put(struct kvmppc_spapr_tce_table *tt,
		unsigned long idx, unsigned long tce);
extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
			     unsigned long ioba, unsigned long tce);
extern long kvmppc_h_put_tce_indirect(struct kvm_vcpu *vcpu,
		unsigned long liobn, unsigned long ioba,
		unsigned long tce_list, unsigned long npages);
extern long kvmppc_h_stuff_tce(struct kvm_vcpu *vcpu,
		unsigned long liobn, unsigned long ioba,
		unsigned long tce_value, unsigned long npages);
extern long kvmppc_h_get_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
			     unsigned long ioba);
extern struct page *kvm_alloc_hpt_cma(unsigned long nr_pages);
extern void kvm_free_hpt_cma(struct page *page, unsigned long nr_pages);
extern int kvmppc_core_init_vm(struct kvm *kvm);
extern void kvmppc_core_destroy_vm(struct kvm *kvm);
extern void kvmppc_core_free_memslot(struct kvm *kvm,
				     struct kvm_memory_slot *free,
				     struct kvm_memory_slot *dont);
extern int kvmppc_core_create_memslot(struct kvm *kvm,
				      struct kvm_memory_slot *slot,
				      unsigned long npages);
extern int kvmppc_core_prepare_memory_region(struct kvm *kvm,
				struct kvm_memory_slot *memslot,
				const struct kvm_userspace_memory_region *mem);
extern void kvmppc_core_commit_memory_region(struct kvm *kvm,
				const struct kvm_userspace_memory_region *mem,
				const struct kvm_memory_slot *old,
				const struct kvm_memory_slot *new);
extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm,
				      struct kvm_ppc_smmu_info *info);
extern void kvmppc_core_flush_memslot(struct kvm *kvm,
				      struct kvm_memory_slot *memslot);

extern int kvmppc_bookehv_init(void);
extern void kvmppc_bookehv_exit(void);

extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu);

extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *);
extern long kvm_vm_ioctl_resize_hpt_prepare(struct kvm *kvm,
					    struct kvm_ppc_resize_hpt *rhpt);
extern long kvm_vm_ioctl_resize_hpt_commit(struct kvm *kvm,
					   struct kvm_ppc_resize_hpt *rhpt);

int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq);

extern int kvm_vm_ioctl_rtas_define_token(struct kvm *kvm, void __user *argp);
extern int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu);
extern void kvmppc_rtas_tokens_free(struct kvm *kvm);

extern int kvmppc_xics_set_xive(struct kvm *kvm, u32 irq, u32 server,
				u32 priority);
extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server,
				u32 *priority);
extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq);
extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq);

void kvmppc_core_dequeue_debug(struct kvm_vcpu *vcpu);
void kvmppc_core_queue_debug(struct kvm_vcpu *vcpu);


union kvmppc_one_reg {
	
u32	wval;
	
u64	dval;
	
vector128 vval;
	
u64	vsxval[2];
	
u32	vsx32val[4];
	struct {
		
u64	addr;
		
u64	length;
	
}	vpaval;
};


struct kvmppc_ops {
	
struct module *owner;
	
int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
	
int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
	
int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id,
			   union kvmppc_one_reg *val);
	
int (*set_one_reg)(struct kvm_vcpu *vcpu, u64 id,
			   union kvmppc_one_reg *val);
	
void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
	
void (*vcpu_put)(struct kvm_vcpu *vcpu);
	
void (*set_msr)(struct kvm_vcpu *vcpu, u64 msr);
	
int (*vcpu_run)(struct kvm_run *run, struct kvm_vcpu *vcpu);
	
struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned int id);
	
void (*vcpu_free)(struct kvm_vcpu *vcpu);
	
int (*check_requests)(struct kvm_vcpu *vcpu);
	
int (*get_dirty_log)(struct kvm *kvm, struct kvm_dirty_log *log);
	
void (*flush_memslot)(struct kvm *kvm, struct kvm_memory_slot *memslot);
	
int (*prepare_memory_region)(struct kvm *kvm,
				     struct kvm_memory_slot *memslot,
				     const struct kvm_userspace_memory_region *mem);
	
void (*commit_memory_region)(struct kvm *kvm,
				     const struct kvm_userspace_memory_region *mem,
				     const struct kvm_memory_slot *old,
				     const struct kvm_memory_slot *new);
	
int (*unmap_hva)(struct kvm *kvm, unsigned long hva);
	
int (*unmap_hva_range)(struct kvm *kvm, unsigned long start,
			   unsigned long end);
	
int (*age_hva)(struct kvm *kvm, unsigned long start, unsigned long end);
	
int (*test_age_hva)(struct kvm *kvm, unsigned long hva);
	
void (*set_spte_hva)(struct kvm *kvm, unsigned long hva, pte_t pte);
	
void (*mmu_destroy)(struct kvm_vcpu *vcpu);
	
void (*free_memslot)(struct kvm_memory_slot *free,
			     struct kvm_memory_slot *dont);
	
int (*create_memslot)(struct kvm_memory_slot *slot,
			      unsigned long npages);
	
int (*init_vm)(struct kvm *kvm);
	
void (*destroy_vm)(struct kvm *kvm);
	
int (*get_smmu_info)(struct kvm *kvm, struct kvm_ppc_smmu_info *info);
	
int (*emulate_op)(struct kvm_run *run, struct kvm_vcpu *vcpu,
			  unsigned int inst, int *advance);
	
int (*emulate_mtspr)(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);
	
int (*emulate_mfspr)(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);
	
void (*fast_vcpu_kick)(struct kvm_vcpu *vcpu);
	
long (*arch_vm_ioctl)(struct file *filp, unsigned int ioctl,
			      unsigned long arg);
	
int (*hcall_implemented)(unsigned long hcall);
	
int (*irq_bypass_add_producer)(struct irq_bypass_consumer *,
				       struct irq_bypass_producer *);
	
void (*irq_bypass_del_producer)(struct irq_bypass_consumer *,
					struct irq_bypass_producer *);
	
int (*configure_mmu)(struct kvm *kvm, struct kvm_ppc_mmuv3_cfg *cfg);
	
int (*get_rmmu_info)(struct kvm *kvm, struct kvm_ppc_rmmu_info *info);
	
int (*set_smt_mode)(struct kvm *kvm, unsigned long mode,
			    unsigned long flags);
};

extern struct kvmppc_ops *kvmppc_hv_ops;
extern struct kvmppc_ops *kvmppc_pr_ops;


static inline int kvmppc_get_last_inst(struct kvm_vcpu *vcpu, enum instruction_type type, u32 *inst) { int ret = EMULATE_DONE; u32 fetched_inst; /* Load the instruction manually if it failed to do so in the * exit path */ if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED) ret = kvmppc_load_last_inst(vcpu, type, &vcpu->arch.last_inst); /* Write fetch_failed unswapped if the fetch failed */ if (ret == EMULATE_DONE) fetched_inst = kvmppc_need_byteswap(vcpu) ? swab32(vcpu->arch.last_inst) : vcpu->arch.last_inst; else fetched_inst = vcpu->arch.last_inst; *inst = fetched_inst; return ret; }

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static inline bool is_kvmppc_hv_enabled(struct kvm *kvm) { return kvm->arch.kvm_ops == kvmppc_hv_ops; }

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extern int kvmppc_hwrng_present(void); /* * Cuts out inst bits with ordering according to spec. * That means the leftmost bit is zero. All given bits are included. */
static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb) { u32 r; u32 mask; BUG_ON(msb > lsb); mask = (1 << (lsb - msb + 1)) - 1; r = (inst >> (63 - lsb)) & mask; return r; }

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/* * Replaces inst bits with ordering according to spec. */
static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value) { u32 r; u32 mask; BUG_ON(msb > lsb); mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb); r = (inst & ~mask) | ((value << (63 - lsb)) & mask); return r; }

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#define one_reg_size(id) \ (1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT)) #define get_reg_val(id, reg) ({ \ union kvmppc_one_reg __u; \ switch (one_reg_size(id)) { \ case 4: __u.wval = (reg); break; \ case 8: __u.dval = (reg); break; \ default: BUG(); \ } \ __u; \ }) #define set_reg_val(id, val) ({ \ u64 __v; \ switch (one_reg_size(id)) { \ case 4: __v = (val).wval; break; \ case 8: __v = (val).dval; break; \ default: BUG(); \ } \ __v; \ }) int kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg); int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg); int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *); int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *); void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid); struct openpic; #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE extern void kvm_cma_reserve(void) __init;
static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) { paca[cpu].kvm_hstate.xics_phys = (void __iomem *)addr; }

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static inline void kvmppc_set_xive_tima(int cpu, unsigned long phys_addr, void __iomem *virt_addr) { paca[cpu].kvm_hstate.xive_tima_phys = (void __iomem *)phys_addr; paca[cpu].kvm_hstate.xive_tima_virt = virt_addr; }

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static inline u32 kvmppc_get_xics_latch(void) { u32 xirr; xirr = get_paca()->kvm_hstate.saved_xirr; get_paca()->kvm_hstate.saved_xirr = 0; return xirr; }

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static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi) { paca[cpu].kvm_hstate.host_ipi = host_ipi; }

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static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu) { vcpu->kvm->arch.kvm_ops->fast_vcpu_kick(vcpu); }

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extern void kvm_hv_vm_activated(void); extern void kvm_hv_vm_deactivated(void); extern bool kvm_hv_mode_active(void); #else
static inline void __init kvm_cma_reserve(void) {}

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static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) {}

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static inline void kvmppc_set_xive_tima(int cpu, unsigned long phys_addr, void __iomem *virt_addr) {}

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static inline u32 kvmppc_get_xics_latch(void) { return 0; }

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static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi) {}

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static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu) { kvm_vcpu_kick(vcpu); }

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static inline bool kvm_hv_mode_active(void) { return false; }

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#endif #ifdef CONFIG_KVM_XICS
static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu) { return vcpu->arch.irq_type == KVMPPC_IRQ_XICS; }

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static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap( struct kvm *kvm) { if (kvm && kvm_irq_bypass) return kvm->arch.pimap; return NULL; }

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Suresh E. Warrier30100.00%2100.00%
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extern void kvmppc_alloc_host_rm_ops(void); extern void kvmppc_free_host_rm_ops(void); extern void kvmppc_free_pimap(struct kvm *kvm); extern int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall); extern void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu); extern int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd); extern u64 kvmppc_xics_get_icp(struct kvm_vcpu *vcpu); extern int kvmppc_xics_set_icp(struct kvm_vcpu *vcpu, u64 icpval); extern int kvmppc_xics_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu, u32 cpu); extern void kvmppc_xics_ipi_action(void); extern void kvmppc_xics_set_mapped(struct kvm *kvm, unsigned long guest_irq, unsigned long host_irq); extern void kvmppc_xics_clr_mapped(struct kvm *kvm, unsigned long guest_irq, unsigned long host_irq); extern long kvmppc_deliver_irq_passthru(struct kvm_vcpu *vcpu, __be32 xirr, struct kvmppc_irq_map *irq_map, struct kvmppc_passthru_irqmap *pimap, bool *again); extern int kvmppc_xics_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level, bool line_status); extern int h_ipi_redirect; #else
static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap( struct kvm *kvm) { return NULL; }

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Suresh E. Warrier17100.00%1100.00%
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static inline void kvmppc_alloc_host_rm_ops(void) {}

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Suresh E. Warrier8100.00%1100.00%
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;
static inline void kvmppc_free_host_rm_ops(void) {}

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Suresh E. Warrier8100.00%1100.00%
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;
static inline void kvmppc_free_pimap(struct kvm *kvm) {}

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Suresh E. Warrier11100.00%1100.00%
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;
static inline int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall) { return 0; }

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Suresh E. Warrier18100.00%1100.00%
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static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu) { return 0; }

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Benjamin Herrenschmidt15100.00%1100.00%
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static inline void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu) { }

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Benjamin Herrenschmidt11100.00%1100.00%
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static inline int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd) { return 0; }

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Benjamin Herrenschmidt18100.00%1100.00%
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#endif #ifdef CONFIG_KVM_XIVE /* * Below the first "xive" is the "eXternal Interrupt Virtualization Engine" * ie. P9 new interrupt controller, while the second "xive" is the legacy * "eXternal Interrupt Vector Entry" which is the configuration of an * interrupt on the "xics" interrupt controller on P8 and earlier. Those * two function consume or produce a legacy "XIVE" state from the * new "XIVE" interrupt controller. */ extern int kvmppc_xive_set_xive(struct kvm *kvm, u32 irq, u32 server, u32 priority); extern int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server, u32 *priority); extern int kvmppc_xive_int_on(struct kvm *kvm, u32 irq); extern int kvmppc_xive_int_off(struct kvm *kvm, u32 irq); extern void kvmppc_xive_init_module(void); extern void kvmppc_xive_exit_module(void); extern int kvmppc_xive_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu, u32 cpu); extern void kvmppc_xive_cleanup_vcpu(struct kvm_vcpu *vcpu); extern int kvmppc_xive_set_mapped(struct kvm *kvm, unsigned long guest_irq, struct irq_desc *host_desc); extern int kvmppc_xive_clr_mapped(struct kvm *kvm, unsigned long guest_irq, struct irq_desc *host_desc); extern u64 kvmppc_xive_get_icp(struct kvm_vcpu *vcpu); extern int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval); extern int kvmppc_xive_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level, bool line_status); #else
static inline int kvmppc_xive_set_xive(struct kvm *kvm, u32 irq, u32 server, u32 priority) { return -1; }

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Benjamin Herrenschmidt25100.00%1100.00%
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static inline int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server, u32 *priority) { return -1; }

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Benjamin Herrenschmidt27100.00%1100.00%
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static inline int kvmppc_xive_int_on(struct kvm *kvm, u32 irq) { return -1; }

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Benjamin Herrenschmidt19100.00%1100.00%
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static inline int kvmppc_xive_int_off(struct kvm *kvm, u32 irq) { return -1; }

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Benjamin Herrenschmidt19100.00%1100.00%
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static inline void kvmppc_xive_init_module(void) { }

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Benjamin Herrenschmidt8100.00%1100.00%
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static inline void kvmppc_xive_exit_module(void) { }

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Benjamin Herrenschmidt8100.00%1100.00%
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static inline int kvmppc_xive_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu, u32 cpu) { return -EBUSY; }

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Benjamin Herrenschmidt24100.00%1100.00%
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static inline void kvmppc_xive_cleanup_vcpu(struct kvm_vcpu *vcpu) { }

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Benjamin Herrenschmidt11100.00%1100.00%
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static inline int kvmppc_xive_set_mapped(struct kvm *kvm, unsigned long guest_irq, struct irq_desc *host_desc) { return -ENODEV; }

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Benjamin Herrenschmidt25100.00%1100.00%
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static inline int kvmppc_xive_clr_mapped(struct kvm *kvm, unsigned long guest_irq, struct irq_desc *host_desc) { return -ENODEV; }

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Benjamin Herrenschmidt25100.00%1100.00%
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static inline u64 kvmppc_xive_get_icp(struct kvm_vcpu *vcpu) { return 0; }

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Benjamin Herrenschmidt15100.00%1100.00%
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static inline int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval) { return -ENOENT; }

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Benjamin Herrenschmidt19100.00%1100.00%
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static inline int kvmppc_xive_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level, bool line_status) { return -ENODEV; }

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Benjamin Herrenschmidt28100.00%1100.00%
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#endif /* CONFIG_KVM_XIVE */ /* * Prototypes for functions called only from assembler code. * Having prototypes reduces sparse errors. */ long kvmppc_rm_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn, unsigned long ioba, unsigned long tce); long kvmppc_rm_h_put_tce_indirect(struct kvm_vcpu *vcpu, unsigned long liobn, unsigned long ioba, unsigned long tce_list, unsigned long npages); long kvmppc_rm_h_stuff_tce(struct kvm_vcpu *vcpu, unsigned long liobn, unsigned long ioba, unsigned long tce_value, unsigned long npages); long int kvmppc_rm_h_confer(struct kvm_vcpu *vcpu, int target, unsigned int yield_count); long kvmppc_h_random(struct kvm_vcpu *vcpu); void kvmhv_commence_exit(int trap); long kvmppc_realmode_machine_check(struct kvm_vcpu *vcpu); void kvmppc_subcore_enter_guest(void); void kvmppc_subcore_exit_guest(void); long kvmppc_realmode_hmi_handler(void); long kvmppc_h_enter(struct kvm_vcpu *vcpu, unsigned long flags, long pte_index, unsigned long pteh, unsigned long ptel); long kvmppc_h_remove(struct kvm_vcpu *vcpu, unsigned long flags, unsigned long pte_index, unsigned long avpn); long kvmppc_h_bulk_remove(struct kvm_vcpu *vcpu); long kvmppc_h_protect(struct kvm_vcpu *vcpu, unsigned long flags, unsigned long pte_index, unsigned long avpn, unsigned long va); long kvmppc_h_read(struct kvm_vcpu *vcpu, unsigned long flags, unsigned long pte_index); long kvmppc_h_clear_ref(struct kvm_vcpu *vcpu, unsigned long flags, unsigned long pte_index); long kvmppc_h_clear_mod(struct kvm_vcpu *vcpu, unsigned long flags, unsigned long pte_index); long kvmppc_hpte_hv_fault(struct kvm_vcpu *vcpu, unsigned long addr, unsigned long slb_v, unsigned int status, bool data); unsigned long kvmppc_rm_h_xirr(struct kvm_vcpu *vcpu); unsigned long kvmppc_rm_h_xirr_x(struct kvm_vcpu *vcpu); unsigned long kvmppc_rm_h_ipoll(struct kvm_vcpu *vcpu, unsigned long server); int kvmppc_rm_h_ipi(struct kvm_vcpu *vcpu, unsigned long server, unsigned long mfrr); int kvmppc_rm_h_cppr(struct kvm_vcpu *vcpu, unsigned long cppr); int kvmppc_rm_h_eoi(struct kvm_vcpu *vcpu, unsigned long xirr); /* * Host-side operations we want to set up while running in real * mode in the guest operating on the xics. * Currently only VCPU wakeup is supported. */ union kvmppc_rm_state { unsigned long raw; struct { u32 in_host; u32 rm_action; }; }; struct kvmppc_host_rm_core { union kvmppc_rm_state rm_state; void *rm_data; char pad[112]; }; struct kvmppc_host_rm_ops { struct kvmppc_host_rm_core *rm_core; void (*vcpu_kick)(struct kvm_vcpu *vcpu); }; extern struct kvmppc_host_rm_ops *kvmppc_host_rm_ops_hv;
static inline unsigned long kvmppc_get_epr(struct kvm_vcpu *vcpu) { #ifdef CONFIG_KVM_BOOKE_HV return mfspr(SPRN_GEPR); #elif defined(CONFIG_BOOKE) return vcpu->arch.epr; #else return 0; #endif }

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Bharat Bhushan42100.00%1100.00%
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static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr) { #ifdef CONFIG_KVM_BOOKE_HV mtspr(SPRN_GEPR, epr); #elif defined(CONFIG_BOOKE) vcpu->arch.epr = epr; #endif }

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Alexander Graf41100.00%1100.00%
Total41100.00%1100.00%

#ifdef CONFIG_KVM_MPIC void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu); int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu, u32 cpu); void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu); #else
static inline void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu) { }

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Scott Wood11100.00%1100.00%
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static inline int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu, u32 cpu) { return -EINVAL; }

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Scott Wood24100.00%1100.00%
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static inline void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu) { }

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Scott Wood16100.00%1100.00%
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#endif /* CONFIG_KVM_MPIC */ int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu, struct kvm_config_tlb *cfg); int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu, struct kvm_dirty_tlb *cfg); long kvmppc_alloc_lpid(void); void kvmppc_claim_lpid(long lpid); void kvmppc_free_lpid(long lpid); void kvmppc_init_lpid(unsigned long nr_lpids);
static inline void kvmppc_mmu_flush_icache(kvm_pfn_t pfn) { struct page *page; /* * We can only access pages that the kernel maps * as memory. Bail out for unmapped ones. */ if (!pfn_valid(pfn)) return; /* Clear i-cache for new pages */ page = pfn_to_page(pfn); if (!test_bit(PG_arch_1, &page->flags)) { flush_dcache_icache_page(page); set_bit(PG_arch_1, &page->flags); } }

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Alexander Graf5180.95%133.33%
Bharat Bhushan1117.46%133.33%
Dan J Williams11.59%133.33%
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/* * Shared struct helpers. The shared struct can be little or big endian, * depending on the guest endianness. So expose helpers to all of them. */
static inline bool kvmppc_shared_big_endian(struct kvm_vcpu *vcpu) { #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE) /* Only Book3S_64 PR supports bi-endian for now */ return vcpu->arch.shared_big_endian; #elif defined(CONFIG_PPC_BOOK3S_64) && defined(__LITTLE_ENDIAN__) /* Book3s_64 HV on little endian is always little endian */ return false; #else return true; #endif }

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Alexander Graf53100.00%1100.00%
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#define SPRNG_WRAPPER_GET(reg, bookehv_spr) \ static inline ulong kvmppc_get_##reg(struct kvm_vcpu *vcpu) \ { \ return mfspr(bookehv_spr); \ } \ #define SPRNG_WRAPPER_SET(reg, bookehv_spr) \ static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, ulong val) \ { \ mtspr(bookehv_spr, val); \ } \ #define SHARED_WRAPPER_GET(reg, size) \ static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu) \ { \ if (kvmppc_shared_big_endian(vcpu)) \ return be##size##_to_cpu(vcpu->arch.shared->reg); \ else \ return le##size##_to_cpu(vcpu->arch.shared->reg); \ } \ #define SHARED_WRAPPER_SET(reg, size) \ static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, u##size val) \ { \ if (kvmppc_shared_big_endian(vcpu)) \ vcpu->arch.shared->reg = cpu_to_be##size(val); \ else \ vcpu->arch.shared->reg = cpu_to_le##size(val); \ } \ #define SHARED_WRAPPER(reg, size) \ SHARED_WRAPPER_GET(reg, size) \ SHARED_WRAPPER_SET(reg, size) \ #define SPRNG_WRAPPER(reg, bookehv_spr) \ SPRNG_WRAPPER_GET(reg, bookehv_spr) \ SPRNG_WRAPPER_SET(reg, bookehv_spr) \ #ifdef CONFIG_KVM_BOOKE_HV #define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \ SPRNG_WRAPPER(reg, bookehv_spr) \ #else #define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \ SHARED_WRAPPER(reg, size) \ #endif SHARED_WRAPPER(critical, 64) SHARED_SPRNG_WRAPPER(sprg0, 64, SPRN_GSPRG0) SHARED_SPRNG_WRAPPER(sprg1, 64, SPRN_GSPRG1) SHARED_SPRNG_WRAPPER(sprg2, 64, SPRN_GSPRG2) SHARED_SPRNG_WRAPPER(sprg3, 64, SPRN_GSPRG3) SHARED_SPRNG_WRAPPER(srr0, 64, SPRN_GSRR0) SHARED_SPRNG_WRAPPER(srr1, 64, SPRN_GSRR1) SHARED_SPRNG_WRAPPER(dar, 64, SPRN_GDEAR) SHARED_SPRNG_WRAPPER(esr, 64, SPRN_GESR) SHARED_WRAPPER_GET(msr, 64)
static inline void kvmppc_set_msr_fast(struct kvm_vcpu *vcpu, u64 val) { if (kvmppc_shared_big_endian(vcpu)) vcpu->arch.shared->msr = cpu_to_be64(val); else vcpu->arch.shared->msr = cpu_to_le64(val); }

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Alexander Graf49100.00%1100.00%
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SHARED_WRAPPER(dsisr, 32) SHARED_WRAPPER(int_pending, 32) SHARED_WRAPPER(sprg4, 64) SHARED_WRAPPER(sprg5, 64) SHARED_WRAPPER(sprg6, 64) SHARED_WRAPPER(sprg7, 64)
static inline u32 kvmppc_get_sr(struct kvm_vcpu *vcpu, int nr) { if (kvmppc_shared_big_endian(vcpu)) return be32_to_cpu(vcpu->arch.shared->sr[nr]); else return le32_to_cpu(vcpu->arch.shared->sr[nr]); }

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Alexander Graf53100.00%1100.00%
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static inline void kvmppc_set_sr(struct kvm_vcpu *vcpu, int nr, u32 val) { if (kvmppc_shared_big_endian(vcpu)) vcpu->arch.shared->sr[nr] = cpu_to_be32(val); else vcpu->arch.shared->sr[nr] = cpu_to_le32(val); }

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Alexander Graf58100.00%1100.00%
Total58100.00%1100.00%

/* * Please call after prepare_to_enter. This function puts the lazy ee and irq * disabled tracking state back to normal mode, without actually enabling * interrupts. */
static inline void kvmppc_fix_ee_before_entry(void) { trace_hardirqs_on(); #ifdef CONFIG_PPC64 /* * To avoid races, the caller must have gone directly from having * interrupts fully-enabled to hard-disabled. */ WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS); /* Only need to enable IRQs by hard enabling them after this */ local_paca->irq_happened = 0; local_paca->soft_enabled = 1; #endif }

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Alexander Graf2665.00%133.33%
Scott Wood1435.00%266.67%
Total40100.00%3100.00%


static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb) { ulong ea; ulong msr_64bit = 0; ea = kvmppc_get_gpr(vcpu, rb); if (ra) ea += kvmppc_get_gpr(vcpu, ra); #if defined(CONFIG_PPC_BOOK3E_64) msr_64bit = MSR_CM; #elif defined(CONFIG_PPC_BOOK3S_64) msr_64bit = MSR_SF; #endif if (!(kvmppc_get_msr(vcpu) & msr_64bit)) ea = (uint32_t)ea; return ea; }

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Mihai Caraman8996.74%266.67%
Alexander Graf33.26%133.33%
Total92100.00%3100.00%

extern void xics_wake_cpu(int cpu); #endif /* __POWERPC_KVM_PPC_H__ */

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Benjamin Herrenschmidt88317.47%64.48%
Paul Mackerras88217.45%2619.40%
Aneesh Kumar K.V77515.33%75.22%
Alexander Graf72614.36%2518.66%
Hollis Blanchard4328.55%1611.94%
Scott Wood2975.88%118.21%
Suresh E. Warrier2625.18%85.97%
Mihai Caraman2224.39%42.99%
Alexey Kardashevskiy1713.38%64.48%
Bharat Bhushan1533.03%85.97%
Michael Ellerman751.48%32.24%
David Gibson681.35%53.73%
Bin Lu601.19%10.75%
Laurent Dufour170.34%10.75%
Paolo Bonzini160.32%21.49%
Madhavan Srinivasan50.10%10.75%
Andres Lagar-Cavilla50.10%10.75%
Cédric Le Goater30.06%10.75%
Takuya Yoshikawa20.04%10.75%
Dan J Williams10.02%10.75%
Total5055100.00%134100.00%
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