/* * 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. 2007 * * Authors: Hollis Blanchard */ #ifndef __POWERPC_KVM_HOST_H__ #define __POWERPC_KVM_HOST_H__ #include #include #include #include #include #include #include #include #include #include #include #include #define KVM_MAX_VCPUS NR_CPUS #define KVM_MAX_VCORES NR_CPUS #define KVM_MEMORY_SLOTS 32 /* memory slots that does not exposed to userspace */ #define KVM_PRIVATE_MEM_SLOTS 4 #define KVM_MEM_SLOTS_NUM (KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS) #ifdef CONFIG_KVM_MMIO #define KVM_COALESCED_MMIO_PAGE_OFFSET 1 #endif /* We don't currently support large pages. */ #define KVM_HPAGE_GFN_SHIFT(x) 0 #define KVM_NR_PAGE_SIZES 1 #define KVM_PAGES_PER_HPAGE(x) (1UL<<31) #define HPTEG_CACHE_NUM (1 << 15) #define HPTEG_HASH_BITS_PTE 13 #define HPTEG_HASH_BITS_PTE_LONG 12 #define HPTEG_HASH_BITS_VPTE 13 #define HPTEG_HASH_BITS_VPTE_LONG 5 #define HPTEG_HASH_NUM_PTE (1 << HPTEG_HASH_BITS_PTE) #define HPTEG_HASH_NUM_PTE_LONG (1 << HPTEG_HASH_BITS_PTE_LONG) #define HPTEG_HASH_NUM_VPTE (1 << HPTEG_HASH_BITS_VPTE) #define HPTEG_HASH_NUM_VPTE_LONG (1 << HPTEG_HASH_BITS_VPTE_LONG) /* Physical Address Mask - allowed range of real mode RAM access */ #define KVM_PAM 0x0fffffffffffffffULL struct kvm; struct kvm_run; struct kvm_vcpu; struct lppaca; struct slb_shadow; struct dtl; struct kvm_vm_stat { u32 remote_tlb_flush; }; struct kvm_vcpu_stat { u32 sum_exits; u32 mmio_exits; u32 dcr_exits; u32 signal_exits; u32 light_exits; /* Account for special types of light exits: */ u32 itlb_real_miss_exits; u32 itlb_virt_miss_exits; u32 dtlb_real_miss_exits; u32 dtlb_virt_miss_exits; u32 syscall_exits; u32 isi_exits; u32 dsi_exits; u32 emulated_inst_exits; u32 dec_exits; u32 ext_intr_exits; u32 halt_wakeup; #ifdef CONFIG_PPC_BOOK3S u32 pf_storage; u32 pf_instruc; u32 sp_storage; u32 sp_instruc; u32 queue_intr; u32 ld; u32 ld_slow; u32 st; u32 st_slow; #endif }; enum kvm_exit_types { MMIO_EXITS, DCR_EXITS, SIGNAL_EXITS, ITLB_REAL_MISS_EXITS, ITLB_VIRT_MISS_EXITS, DTLB_REAL_MISS_EXITS, DTLB_VIRT_MISS_EXITS, SYSCALL_EXITS, ISI_EXITS, DSI_EXITS, EMULATED_INST_EXITS, EMULATED_MTMSRWE_EXITS, EMULATED_WRTEE_EXITS, EMULATED_MTSPR_EXITS, EMULATED_MFSPR_EXITS, EMULATED_MTMSR_EXITS, EMULATED_MFMSR_EXITS, EMULATED_TLBSX_EXITS, EMULATED_TLBWE_EXITS, EMULATED_RFI_EXITS, DEC_EXITS, EXT_INTR_EXITS, HALT_WAKEUP, USR_PR_INST, FP_UNAVAIL, DEBUG_EXITS, TIMEINGUEST, __NUMBER_OF_KVM_EXIT_TYPES }; /* allow access to big endian 32bit upper/lower parts and 64bit var */ struct kvmppc_exit_timing { union { u64 tv64; struct { u32 tbu, tbl; } tv32; }; }; struct kvmppc_pginfo { unsigned long pfn; atomic_t refcnt; }; struct kvmppc_spapr_tce_table { struct list_head list; struct kvm *kvm; u64 liobn; u32 window_size; struct page *pages[0]; }; struct kvmppc_rma_info { void *base_virt; unsigned long base_pfn; unsigned long npages; struct list_head list; atomic_t use_count; }; /* * The reverse mapping array has one entry for each HPTE, * which stores the guest's view of the second word of the HPTE * (including the guest physical address of the mapping), * plus forward and backward pointers in a doubly-linked ring * of HPTEs that map the same host page. The pointers in this * ring are 32-bit HPTE indexes, to save space. */ struct revmap_entry { unsigned long guest_rpte; unsigned int forw, back; }; /* * We use the top bit of each memslot->rmap entry as a lock bit, * and bit 32 as a present flag. The bottom 32 bits are the * index in the guest HPT of a HPTE that points to the page. */ #define KVMPPC_RMAP_LOCK_BIT 63 #define KVMPPC_RMAP_REF_BIT 33 #define KVMPPC_RMAP_REFERENCED (1ul << KVMPPC_RMAP_REF_BIT) #define KVMPPC_RMAP_PRESENT 0x100000000ul #define KVMPPC_RMAP_INDEX 0xfffffffful /* Low-order bits in kvm->arch.slot_phys[][] */ #define KVMPPC_PAGE_ORDER_MASK 0x1f #define KVMPPC_PAGE_NO_CACHE HPTE_R_I /* 0x20 */ #define KVMPPC_PAGE_WRITETHRU HPTE_R_W /* 0x40 */ #define KVMPPC_GOT_PAGE 0x80 struct kvm_arch { #ifdef CONFIG_KVM_BOOK3S_64_HV unsigned long hpt_virt; struct revmap_entry *revmap; unsigned int lpid; unsigned int host_lpid; unsigned long host_lpcr; unsigned long sdr1; unsigned long host_sdr1; int tlbie_lock; unsigned long lpcr; unsigned long rmor; struct kvmppc_rma_info *rma; unsigned long vrma_slb_v; int rma_setup_done; struct list_head spapr_tce_tables; spinlock_t slot_phys_lock; unsigned long *slot_phys[KVM_MEM_SLOTS_NUM]; int slot_npages[KVM_MEM_SLOTS_NUM]; unsigned short last_vcpu[NR_CPUS]; struct kvmppc_vcore *vcores[KVM_MAX_VCORES]; #endif /* CONFIG_KVM_BOOK3S_64_HV */ }; /* * Struct for a virtual core. * Note: entry_exit_count combines an entry count in the bottom 8 bits * and an exit count in the next 8 bits. This is so that we can * atomically increment the entry count iff the exit count is 0 * without taking the lock. */ struct kvmppc_vcore { int n_runnable; int n_busy; int num_threads; int entry_exit_count; int n_woken; int nap_count; int napping_threads; u16 pcpu; u8 vcore_state; u8 in_guest; struct list_head runnable_threads; spinlock_t lock; wait_queue_head_t wq; }; #define VCORE_ENTRY_COUNT(vc) ((vc)->entry_exit_count & 0xff) #define VCORE_EXIT_COUNT(vc) ((vc)->entry_exit_count >> 8) /* Values for vcore_state */ #define VCORE_INACTIVE 0 #define VCORE_RUNNING 1 #define VCORE_EXITING 2 #define VCORE_SLEEPING 3 struct kvmppc_pte { ulong eaddr; u64 vpage; ulong raddr; bool may_read : 1; bool may_write : 1; bool may_execute : 1; }; struct kvmppc_mmu { /* book3s_64 only */ void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs); u64 (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr); u64 (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr); void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr); void (*slbia)(struct kvm_vcpu *vcpu); /* book3s */ void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value); u32 (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum); int (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr, struct kvmppc_pte *pte, bool data); void (*reset_msr)(struct kvm_vcpu *vcpu); void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large); int (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid); u64 (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data); bool (*is_dcbz32)(struct kvm_vcpu *vcpu); }; struct kvmppc_slb { u64 esid; u64 vsid; u64 orige; u64 origv; bool valid : 1; bool Ks : 1; bool Kp : 1; bool nx : 1; bool large : 1; /* PTEs are 16MB */ bool tb : 1; /* 1TB segment */ bool class : 1; }; struct kvm_vcpu_arch { ulong host_stack; u32 host_pid; #ifdef CONFIG_PPC_BOOK3S struct kvmppc_slb slb[64]; int slb_max; /* 1 + index of last valid entry in slb[] */ int slb_nr; /* total number of entries in SLB */ struct kvmppc_mmu mmu; #endif ulong gpr[32]; u64 fpr[32]; u64 fpscr; #ifdef CONFIG_SPE ulong evr[32]; ulong spefscr; ulong host_spefscr; u64 acc; #endif #ifdef CONFIG_ALTIVEC vector128 vr[32]; vector128 vscr; #endif #ifdef CONFIG_VSX u64 vsr[64]; #endif #ifdef CONFIG_PPC_BOOK3S /* For Gekko paired singles */ u32 qpr[32]; #endif ulong pc; ulong ctr; ulong lr; ulong xer; u32 cr; #ifdef CONFIG_PPC_BOOK3S ulong hflags; ulong guest_owned_ext; ulong purr; ulong spurr; ulong dscr; ulong amr; ulong uamor; u32 ctrl; ulong dabr; #endif u32 vrsave; /* also USPRG0 */ u32 mmucr; ulong shadow_msr; ulong csrr0; ulong csrr1; ulong dsrr0; ulong dsrr1; ulong mcsrr0; ulong mcsrr1; ulong mcsr; u32 dec; u32 decar; u32 tbl; u32 tbu; u32 tcr; ulong tsr; /* we need to perform set/clr_bits() which requires ulong */ u32 ivor[64]; ulong ivpr; u32 pvr; u32 shadow_pid; u32 shadow_pid1; u32 pid; u32 swap_pid; u32 ccr0; u32 ccr1; u32 dbcr0; u32 dbcr1; u32 dbsr; u64 mmcr[3]; u32 pmc[8]; #ifdef CONFIG_KVM_EXIT_TIMING struct mutex exit_timing_lock; struct kvmppc_exit_timing timing_exit; struct kvmppc_exit_timing timing_last_enter; u32 last_exit_type; u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES]; u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES]; u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES]; u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES]; u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES]; u64 timing_last_exit; struct dentry *debugfs_exit_timing; #endif #ifdef CONFIG_PPC_BOOK3S ulong fault_dar; u32 fault_dsisr; #endif #ifdef CONFIG_BOOKE ulong fault_dear; ulong fault_esr; ulong queued_dear; ulong queued_esr; #endif gpa_t paddr_accessed; u8 io_gpr; /* GPR used as IO source/target */ u8 mmio_is_bigendian; u8 mmio_sign_extend; u8 dcr_needed; u8 dcr_is_write; u8 osi_needed; u8 osi_enabled; u8 papr_enabled; u8 sane; u8 cpu_type; u8 hcall_needed; u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */ struct hrtimer dec_timer; struct tasklet_struct tasklet; u64 dec_jiffies; u64 dec_expires; unsigned long pending_exceptions; u16 last_cpu; u8 ceded; u8 prodded; u32 last_inst; struct lppaca *vpa; struct slb_shadow *slb_shadow; struct dtl *dtl; struct dtl *dtl_end; wait_queue_head_t *wqp; struct kvmppc_vcore *vcore; int ret; int trap; int state; int ptid; bool timer_running; wait_queue_head_t cpu_run; struct kvm_vcpu_arch_shared *shared; unsigned long magic_page_pa; /* phys addr to map the magic page to */ unsigned long magic_page_ea; /* effect. addr to map the magic page to */ #ifdef CONFIG_KVM_BOOK3S_64_HV struct kvm_vcpu_arch_shared shregs; unsigned long pgfault_addr; long pgfault_index; unsigned long pgfault_hpte[2]; struct list_head run_list; struct task_struct *run_task; struct kvm_run *kvm_run; #endif }; /* Values for vcpu->arch.state */ #define KVMPPC_VCPU_STOPPED 0 #define KVMPPC_VCPU_BUSY_IN_HOST 1 #define KVMPPC_VCPU_RUNNABLE 2 #endif /* __POWERPC_KVM_HOST_H__ */