/* * kvm_host.h: used for kvm module, and hold ia64-specific sections. * * Copyright (C) 2007, Intel Corporation. * * Xiantao Zhang * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope 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, Inc., 59 Temple * Place - Suite 330, Boston, MA 02111-1307 USA. * */ #ifndef __ASM_KVM_HOST_H #define __ASM_KVM_HOST_H #define KVM_MEMORY_SLOTS 32 /* memory slots that does not exposed to userspace */ #define KVM_PRIVATE_MEM_SLOTS 4 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1 /* define exit reasons from vmm to kvm*/ #define EXIT_REASON_VM_PANIC 0 #define EXIT_REASON_MMIO_INSTRUCTION 1 #define EXIT_REASON_PAL_CALL 2 #define EXIT_REASON_SAL_CALL 3 #define EXIT_REASON_SWITCH_RR6 4 #define EXIT_REASON_VM_DESTROY 5 #define EXIT_REASON_EXTERNAL_INTERRUPT 6 #define EXIT_REASON_IPI 7 #define EXIT_REASON_PTC_G 8 #define EXIT_REASON_DEBUG 20 /*Define vmm address space and vm data space.*/ #define KVM_VMM_SIZE (__IA64_UL_CONST(16)<<20) #define KVM_VMM_SHIFT 24 #define KVM_VMM_BASE 0xD000000000000000 #define VMM_SIZE (__IA64_UL_CONST(8)<<20) /* * Define vm_buffer, used by PAL Services, base address. * Note: vm_buffer is in the VMM-BLOCK, the size must be < 8M */ #define KVM_VM_BUFFER_BASE (KVM_VMM_BASE + VMM_SIZE) #define KVM_VM_BUFFER_SIZE (__IA64_UL_CONST(8)<<20) /* * kvm guest's data area looks as follow: * * +----------------------+ ------- KVM_VM_DATA_SIZE * | vcpu[n]'s data | | ___________________KVM_STK_OFFSET * | | | / | * | .......... | | /vcpu's struct&stack | * | .......... | | /---------------------|---- 0 * | vcpu[5]'s data | | / vpd | * | vcpu[4]'s data | |/-----------------------| * | vcpu[3]'s data | / vtlb | * | vcpu[2]'s data | /|------------------------| * | vcpu[1]'s data |/ | vhpt | * | vcpu[0]'s data |____________________________| * +----------------------+ | * | memory dirty log | | * +----------------------+ | * | vm's data struct | | * +----------------------+ | * | | | * | | | * | | | * | | | * | | | * | | | * | | | * | vm's p2m table | | * | | | * | | | * | | | | * vm's data->| | | | * +----------------------+ ------- 0 * To support large memory, needs to increase the size of p2m. * To support more vcpus, needs to ensure it has enough space to * hold vcpus' data. */ #define KVM_VM_DATA_SHIFT 26 #define KVM_VM_DATA_SIZE (__IA64_UL_CONST(1) << KVM_VM_DATA_SHIFT) #define KVM_VM_DATA_BASE (KVM_VMM_BASE + KVM_VM_DATA_SIZE) #define KVM_P2M_BASE KVM_VM_DATA_BASE #define KVM_P2M_SIZE (__IA64_UL_CONST(24) << 20) #define VHPT_SHIFT 16 #define VHPT_SIZE (__IA64_UL_CONST(1) << VHPT_SHIFT) #define VHPT_NUM_ENTRIES (__IA64_UL_CONST(1) << (VHPT_SHIFT-5)) #define VTLB_SHIFT 16 #define VTLB_SIZE (__IA64_UL_CONST(1) << VTLB_SHIFT) #define VTLB_NUM_ENTRIES (1UL << (VHPT_SHIFT-5)) #define VPD_SHIFT 16 #define VPD_SIZE (__IA64_UL_CONST(1) << VPD_SHIFT) #define VCPU_STRUCT_SHIFT 16 #define VCPU_STRUCT_SIZE (__IA64_UL_CONST(1) << VCPU_STRUCT_SHIFT) /* * This must match KVM_IA64_VCPU_STACK_{SHIFT,SIZE} arch/ia64/include/asm/kvm.h */ #define KVM_STK_SHIFT 16 #define KVM_STK_OFFSET (__IA64_UL_CONST(1)<< KVM_STK_SHIFT) #define KVM_VM_STRUCT_SHIFT 19 #define KVM_VM_STRUCT_SIZE (__IA64_UL_CONST(1) << KVM_VM_STRUCT_SHIFT) #define KVM_MEM_DIRY_LOG_SHIFT 19 #define KVM_MEM_DIRTY_LOG_SIZE (__IA64_UL_CONST(1) << KVM_MEM_DIRY_LOG_SHIFT) #ifndef __ASSEMBLY__ /*Define the max vcpus and memory for Guests.*/ #define KVM_MAX_VCPUS (KVM_VM_DATA_SIZE - KVM_P2M_SIZE - KVM_VM_STRUCT_SIZE -\ KVM_MEM_DIRTY_LOG_SIZE) / sizeof(struct kvm_vcpu_data) #define KVM_MAX_MEM_SIZE (KVM_P2M_SIZE >> 3 << PAGE_SHIFT) #define VMM_LOG_LEN 256 #include #include #include #include #include #include #include #include struct kvm_vcpu_data { char vcpu_vhpt[VHPT_SIZE]; char vcpu_vtlb[VTLB_SIZE]; char vcpu_vpd[VPD_SIZE]; char vcpu_struct[VCPU_STRUCT_SIZE]; }; struct kvm_vm_data { char kvm_p2m[KVM_P2M_SIZE]; char kvm_vm_struct[KVM_VM_STRUCT_SIZE]; char kvm_mem_dirty_log[KVM_MEM_DIRTY_LOG_SIZE]; struct kvm_vcpu_data vcpu_data[KVM_MAX_VCPUS]; }; #define VCPU_BASE(n) (KVM_VM_DATA_BASE + \ offsetof(struct kvm_vm_data, vcpu_data[n])) #define KVM_VM_BASE (KVM_VM_DATA_BASE + \ offsetof(struct kvm_vm_data, kvm_vm_struct)) #define KVM_MEM_DIRTY_LOG_BASE KVM_VM_DATA_BASE + \ offsetof(struct kvm_vm_data, kvm_mem_dirty_log) #define VHPT_BASE(n) (VCPU_BASE(n) + offsetof(struct kvm_vcpu_data, vcpu_vhpt)) #define VTLB_BASE(n) (VCPU_BASE(n) + offsetof(struct kvm_vcpu_data, vcpu_vtlb)) #define VPD_BASE(n) (VCPU_BASE(n) + offsetof(struct kvm_vcpu_data, vcpu_vpd)) #define VCPU_STRUCT_BASE(n) (VCPU_BASE(n) + \ offsetof(struct kvm_vcpu_data, vcpu_struct)) /*IO section definitions*/ #define IOREQ_READ 1 #define IOREQ_WRITE 0 #define STATE_IOREQ_NONE 0 #define STATE_IOREQ_READY 1 #define STATE_IOREQ_INPROCESS 2 #define STATE_IORESP_READY 3 /*Guest Physical address layout.*/ #define GPFN_MEM (0UL << 60) /* Guest pfn is normal mem */ #define GPFN_FRAME_BUFFER (1UL << 60) /* VGA framebuffer */ #define GPFN_LOW_MMIO (2UL << 60) /* Low MMIO range */ #define GPFN_PIB (3UL << 60) /* PIB base */ #define GPFN_IOSAPIC (4UL << 60) /* IOSAPIC base */ #define GPFN_LEGACY_IO (5UL << 60) /* Legacy I/O base */ #define GPFN_GFW (6UL << 60) /* Guest Firmware */ #define GPFN_PHYS_MMIO (7UL << 60) /* Directed MMIO Range */ #define GPFN_IO_MASK (7UL << 60) /* Guest pfn is I/O type */ #define GPFN_INV_MASK (1UL << 63) /* Guest pfn is invalid */ #define INVALID_MFN (~0UL) #define MEM_G (1UL << 30) #define MEM_M (1UL << 20) #define MMIO_START (3 * MEM_G) #define MMIO_SIZE (512 * MEM_M) #define VGA_IO_START 0xA0000UL #define VGA_IO_SIZE 0x20000 #define LEGACY_IO_START (MMIO_START + MMIO_SIZE) #define LEGACY_IO_SIZE (64 * MEM_M) #define IO_SAPIC_START 0xfec00000UL #define IO_SAPIC_SIZE 0x100000 #define PIB_START 0xfee00000UL #define PIB_SIZE 0x200000 #define GFW_START (4 * MEM_G - 16 * MEM_M) #define GFW_SIZE (16 * MEM_M) /*Deliver mode, defined for ioapic.c*/ #define dest_Fixed IOSAPIC_FIXED #define dest_LowestPrio IOSAPIC_LOWEST_PRIORITY #define NMI_VECTOR 2 #define ExtINT_VECTOR 0 #define NULL_VECTOR (-1) #define IA64_SPURIOUS_INT_VECTOR 0x0f #define VCPU_LID(v) (((u64)(v)->vcpu_id) << 24) /* *Delivery mode */ #define SAPIC_DELIV_SHIFT 8 #define SAPIC_FIXED 0x0 #define SAPIC_LOWEST_PRIORITY 0x1 #define SAPIC_PMI 0x2 #define SAPIC_NMI 0x4 #define SAPIC_INIT 0x5 #define SAPIC_EXTINT 0x7 /* * vcpu->requests bit members for arch */ #define KVM_REQ_PTC_G 32 #define KVM_REQ_RESUME 33 #define KVM_NR_PAGE_SIZES 1 #define KVM_PAGES_PER_HPAGE(x) 1 struct kvm; struct kvm_vcpu; struct kvm_mmio_req { uint64_t addr; /* physical address */ uint64_t size; /* size in bytes */ uint64_t data; /* data (or paddr of data) */ uint8_t state:4; uint8_t dir:1; /* 1=read, 0=write */ }; /*Pal data struct */ struct kvm_pal_call{ /*In area*/ uint64_t gr28; uint64_t gr29; uint64_t gr30; uint64_t gr31; /*Out area*/ struct ia64_pal_retval ret; }; /* Sal data structure */ struct kvm_sal_call{ /*In area*/ uint64_t in0; uint64_t in1; uint64_t in2; uint64_t in3; uint64_t in4; uint64_t in5; uint64_t in6; uint64_t in7; struct sal_ret_values ret; }; /*Guest change rr6*/ struct kvm_switch_rr6 { uint64_t old_rr; uint64_t new_rr; }; union ia64_ipi_a{ unsigned long val; struct { unsigned long rv : 3; unsigned long ir : 1; unsigned long eid : 8; unsigned long id : 8; unsigned long ib_base : 44; }; }; union ia64_ipi_d { unsigned long val; struct { unsigned long vector : 8; unsigned long dm : 3; unsigned long ig : 53; }; }; /*ipi check exit data*/ struct kvm_ipi_data{ union ia64_ipi_a addr; union ia64_ipi_d data; }; /*global purge data*/ struct kvm_ptc_g { unsigned long vaddr; unsigned long rr; unsigned long ps; struct kvm_vcpu *vcpu; }; /*Exit control data */ struct exit_ctl_data{ uint32_t exit_reason; uint32_t vm_status; union { struct kvm_mmio_req ioreq; struct kvm_pal_call pal_data; struct kvm_sal_call sal_data; struct kvm_switch_rr6 rr_data; struct kvm_ipi_data ipi_data; struct kvm_ptc_g ptc_g_data; } u; }; union pte_flags { unsigned long val; struct { unsigned long p : 1; /*0 */ unsigned long : 1; /* 1 */ unsigned long ma : 3; /* 2-4 */ unsigned long a : 1; /* 5 */ unsigned long d : 1; /* 6 */ unsigned long pl : 2; /* 7-8 */ unsigned long ar : 3; /* 9-11 */ unsigned long ppn : 38; /* 12-49 */ unsigned long : 2; /* 50-51 */ unsigned long ed : 1; /* 52 */ }; }; union ia64_pta { unsigned long val; struct { unsigned long ve : 1; unsigned long reserved0 : 1; unsigned long size : 6; unsigned long vf : 1; unsigned long reserved1 : 6; unsigned long base : 49; }; }; struct thash_cb { /* THASH base information */ struct thash_data *hash; /* hash table pointer */ union ia64_pta pta; int num; }; struct kvm_vcpu_stat { }; struct kvm_vcpu_arch { int launched; int last_exit; int last_run_cpu; int vmm_tr_slot; int vm_tr_slot; int sn_rtc_tr_slot; #define KVM_MP_STATE_RUNNABLE 0 #define KVM_MP_STATE_UNINITIALIZED 1 #define KVM_MP_STATE_INIT_RECEIVED 2 #define KVM_MP_STATE_HALTED 3 int mp_state; #define MAX_PTC_G_NUM 3 int ptc_g_count; struct kvm_ptc_g ptc_g_data[MAX_PTC_G_NUM]; /*halt timer to wake up sleepy vcpus*/ struct hrtimer hlt_timer; long ht_active; struct kvm_lapic *apic; /* kernel irqchip context */ struct vpd *vpd; /* Exit data for vmm_transition*/ struct exit_ctl_data exit_data; cpumask_t cache_coherent_map; unsigned long vmm_rr; unsigned long host_rr6; unsigned long psbits[8]; unsigned long cr_iipa; unsigned long cr_isr; unsigned long vsa_base; unsigned long dirty_log_lock_pa; unsigned long __gp; /* TR and TC. */ struct thash_data itrs[NITRS]; struct thash_data dtrs[NDTRS]; /* Bit is set if there is a tr/tc for the region. */ unsigned char itr_regions; unsigned char dtr_regions; unsigned char tc_regions; /* purge all */ unsigned long ptce_base; unsigned long ptce_count[2]; unsigned long ptce_stride[2]; /* itc/itm */ unsigned long last_itc; long itc_offset; unsigned long itc_check; unsigned long timer_check; unsigned int timer_pending; unsigned int timer_fired; unsigned long vrr[8]; unsigned long ibr[8]; unsigned long dbr[8]; unsigned long insvc[4]; /* Interrupt in service. */ unsigned long xtp; unsigned long metaphysical_rr0; /* from kvm_arch (so is pinned) */ unsigned long metaphysical_rr4; /* from kvm_arch (so is pinned) */ unsigned long metaphysical_saved_rr0; /* from kvm_arch */ unsigned long metaphysical_saved_rr4; /* from kvm_arch */ unsigned long fp_psr; /*used for lazy float register */ unsigned long saved_gp; /*for phycial emulation */ int mode_flags; struct thash_cb vtlb; struct thash_cb vhpt; char irq_check; char irq_new_pending; unsigned long opcode; unsigned long cause; char log_buf[VMM_LOG_LEN]; union context host; union context guest; }; struct kvm_vm_stat { u64 remote_tlb_flush; }; struct kvm_sal_data { unsigned long boot_ip; unsigned long boot_gp; }; struct kvm_arch { spinlock_t dirty_log_lock; unsigned long vm_base; unsigned long metaphysical_rr0; unsigned long metaphysical_rr4; unsigned long vmm_init_rr; int is_sn2; struct kvm_ioapic *vioapic; struct kvm_vm_stat stat; struct kvm_sal_data rdv_sal_data; struct list_head assigned_dev_head; struct iommu_domain *iommu_domain; int iommu_flags; unsigned long irq_sources_bitmap; unsigned long irq_states[KVM_IOAPIC_NUM_PINS]; }; union cpuid3_t { u64 value; struct { u64 number : 8; u64 revision : 8; u64 model : 8; u64 family : 8; u64 archrev : 8; u64 rv : 24; }; }; struct kvm_pt_regs { /* The following registers are saved by SAVE_MIN: */ unsigned long b6; /* scratch */ unsigned long b7; /* scratch */ unsigned long ar_csd; /* used by cmp8xchg16 (scratch) */ unsigned long ar_ssd; /* reserved for future use (scratch) */ unsigned long r8; /* scratch (return value register 0) */ unsigned long r9; /* scratch (return value register 1) */ unsigned long r10; /* scratch (return value register 2) */ unsigned long r11; /* scratch (return value register 3) */ unsigned long cr_ipsr; /* interrupted task's psr */ unsigned long cr_iip; /* interrupted task's instruction pointer */ unsigned long cr_ifs; /* interrupted task's function state */ unsigned long ar_unat; /* interrupted task's NaT register (preserved) */ unsigned long ar_pfs; /* prev function state */ unsigned long ar_rsc; /* RSE configuration */ /* The following two are valid only if cr_ipsr.cpl > 0: */ unsigned long ar_rnat; /* RSE NaT */ unsigned long ar_bspstore; /* RSE bspstore */ unsigned long pr; /* 64 predicate registers (1 bit each) */ unsigned long b0; /* return pointer (bp) */ unsigned long loadrs; /* size of dirty partition << 16 */ unsigned long r1; /* the gp pointer */ unsigned long r12; /* interrupted task's memory stack pointer */ unsigned long r13; /* thread pointer */ unsigned long ar_fpsr; /* floating point status (preserved) */ unsigned long r15; /* scratch */ /* The remaining registers are NOT saved for system calls. */ unsigned long r14; /* scratch */ unsigned long r2; /* scratch */ unsigned long r3; /* scratch */ unsigned long r16; /* scratch */ unsigned long r17; /* scratch */ unsigned long r18; /* scratch */ unsigned long r19; /* scratch */ unsigned long r20; /* scratch */ unsigned long r21; /* scratch */ unsigned long r22; /* scratch */ unsigned long r23; /* scratch */ unsigned long r24; /* scratch */ unsigned long r25; /* scratch */ unsigned long r26; /* scratch */ unsigned long r27; /* scratch */ unsigned long r28; /* scratch */ unsigned long r29; /* scratch */ unsigned long r30; /* scratch */ unsigned long r31; /* scratch */ unsigned long ar_ccv; /* compare/exchange value (scratch) */ /* * Floating point registers that the kernel considers scratch: */ struct ia64_fpreg f6; /* scratch */ struct ia64_fpreg f7; /* scratch */ struct ia64_fpreg f8; /* scratch */ struct ia64_fpreg f9; /* scratch */ struct ia64_fpreg f10; /* scratch */ struct ia64_fpreg f11; /* scratch */ unsigned long r4; /* preserved */ unsigned long r5; /* preserved */ unsigned long r6; /* preserved */ unsigned long r7; /* preserved */ unsigned long eml_unat; /* used for emulating instruction */ unsigned long pad0; /* alignment pad */ }; static inline struct kvm_pt_regs *vcpu_regs(struct kvm_vcpu *v) { return (struct kvm_pt_regs *) ((unsigned long) v + KVM_STK_OFFSET) - 1; } typedef int kvm_vmm_entry(void); typedef void kvm_tramp_entry(union context *host, union context *guest); struct kvm_vmm_info{ struct module *module; kvm_vmm_entry *vmm_entry; kvm_tramp_entry *tramp_entry; unsigned long vmm_ivt; unsigned long patch_mov_ar; unsigned long patch_mov_ar_sn2; }; int kvm_highest_pending_irq(struct kvm_vcpu *vcpu); int kvm_emulate_halt(struct kvm_vcpu *vcpu); int kvm_pal_emul(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run); void kvm_sal_emul(struct kvm_vcpu *vcpu); #endif /* __ASSEMBLY__*/ #endif