diff options
Diffstat (limited to 'arch/powerpc/include/asm/kvm_host.h')
| -rw-r--r-- | arch/powerpc/include/asm/kvm_host.h | 90 |
1 files changed, 75 insertions, 15 deletions
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h index bf8af5d5d5dc..52eb9c1f4fe0 100644 --- a/arch/powerpc/include/asm/kvm_host.h +++ b/arch/powerpc/include/asm/kvm_host.h @@ -32,17 +32,32 @@ #include <linux/atomic.h> #include <asm/kvm_asm.h> #include <asm/processor.h> +#include <asm/page.h> #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 +#ifdef CONFIG_KVM_BOOK3S_64_HV +#include <linux/mmu_notifier.h> + +#define KVM_ARCH_WANT_MMU_NOTIFIER + +struct kvm; +extern int kvm_unmap_hva(struct kvm *kvm, unsigned long hva); +extern int kvm_age_hva(struct kvm *kvm, unsigned long hva); +extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva); +extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte); + +#endif + /* We don't currently support large pages. */ #define KVM_HPAGE_GFN_SHIFT(x) 0 #define KVM_NR_PAGE_SIZES 1 @@ -158,34 +173,72 @@ struct kvmppc_spapr_tce_table { struct page *pages[0]; }; -struct kvmppc_rma_info { +struct kvmppc_linear_info { void *base_virt; unsigned long base_pfn; unsigned long npages; struct list_head list; - atomic_t use_count; + atomic_t use_count; + int type; +}; + +/* + * 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_RC_SHIFT 32 +#define KVMPPC_RMAP_REFERENCED (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT) +#define KVMPPC_RMAP_CHANGED (HPTE_R_C << KVMPPC_RMAP_RC_SHIFT) +#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_memory_slot { }; struct kvm_arch { #ifdef CONFIG_KVM_BOOK3S_64_HV unsigned long hpt_virt; - unsigned long ram_npages; - unsigned long ram_psize; - unsigned long ram_porder; - struct kvmppc_pginfo *ram_pginfo; + 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; - int n_rma_pages; unsigned long lpcr; unsigned long rmor; - struct kvmppc_rma_info *rma; + struct kvmppc_linear_info *rma; + unsigned long vrma_slb_v; + int rma_setup_done; + int using_mmu_notifiers; 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]; + struct kvmppc_linear_info *hpt_li; #endif /* CONFIG_KVM_BOOK3S_64_HV */ }; @@ -318,10 +371,6 @@ struct kvm_vcpu_arch { u32 vrsave; /* also USPRG0 */ u32 mmucr; ulong shadow_msr; - ulong sprg4; - ulong sprg5; - ulong sprg6; - ulong sprg7; ulong csrr0; ulong csrr1; ulong dsrr0; @@ -329,16 +378,14 @@ struct kvm_vcpu_arch { ulong mcsrr0; ulong mcsrr1; ulong mcsr; - ulong esr; u32 dec; u32 decar; u32 tbl; u32 tbu; u32 tcr; - u32 tsr; + ulong tsr; /* we need to perform set/clr_bits() which requires ulong */ u32 ivor[64]; ulong ivpr; - u32 pir; u32 pvr; u32 shadow_pid; @@ -427,9 +474,14 @@ struct kvm_vcpu_arch { #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; + pgd_t *pgdir; #endif }; @@ -438,4 +490,12 @@ struct kvm_vcpu_arch { #define KVMPPC_VCPU_BUSY_IN_HOST 1 #define KVMPPC_VCPU_RUNNABLE 2 +/* Values for vcpu->arch.io_gpr */ +#define KVM_MMIO_REG_MASK 0x001f +#define KVM_MMIO_REG_EXT_MASK 0xffe0 +#define KVM_MMIO_REG_GPR 0x0000 +#define KVM_MMIO_REG_FPR 0x0020 +#define KVM_MMIO_REG_QPR 0x0040 +#define KVM_MMIO_REG_FQPR 0x0060 + #endif /* __POWERPC_KVM_HOST_H__ */ |