1 /* 2 * QEMU Hypervisor.framework (HVF) support 3 * 4 * Copyright Google Inc., 2017 5 * 6 * This work is licensed under the terms of the GNU GPL, version 2 or later. 7 * See the COPYING file in the top-level directory. 8 * 9 */ 10 11 /* header to be included in non-HVF-specific code */ 12 13 #ifndef HVF_H 14 #define HVF_H 15 16 #include "qemu-common.h" 17 #include "qemu/bitops.h" 18 #include "exec/memory.h" 19 #include "sysemu/accel.h" 20 21 extern bool hvf_allowed; 22 #ifdef CONFIG_HVF 23 #include <Hypervisor/hv.h> 24 #include <Hypervisor/hv_vmx.h> 25 #include <Hypervisor/hv_error.h> 26 #include "target/i386/cpu.h" 27 #include "hw/hw.h" 28 uint32_t hvf_get_supported_cpuid(uint32_t func, uint32_t idx, 29 int reg); 30 #define hvf_enabled() (hvf_allowed) 31 #else 32 #define hvf_enabled() 0 33 #define hvf_get_supported_cpuid(func, idx, reg) 0 34 #endif 35 36 /* hvf_slot flags */ 37 #define HVF_SLOT_LOG (1 << 0) 38 39 typedef struct hvf_slot { 40 uint64_t start; 41 uint64_t size; 42 uint8_t *mem; 43 int slot_id; 44 uint32_t flags; 45 MemoryRegion *region; 46 } hvf_slot; 47 48 typedef struct hvf_vcpu_caps { 49 uint64_t vmx_cap_pinbased; 50 uint64_t vmx_cap_procbased; 51 uint64_t vmx_cap_procbased2; 52 uint64_t vmx_cap_entry; 53 uint64_t vmx_cap_exit; 54 uint64_t vmx_cap_preemption_timer; 55 } hvf_vcpu_caps; 56 57 typedef struct HVFState { 58 AccelState parent; 59 hvf_slot slots[32]; 60 int num_slots; 61 62 hvf_vcpu_caps *hvf_caps; 63 } HVFState; 64 extern HVFState *hvf_state; 65 66 void hvf_set_phys_mem(MemoryRegionSection *, bool); 67 void hvf_handle_io(CPUArchState *, uint16_t, void *, 68 int, int, int); 69 hvf_slot *hvf_find_overlap_slot(uint64_t, uint64_t); 70 71 /* Disable HVF if |disable| is 1, otherwise, enable it iff it is supported by 72 * the host CPU. Use hvf_enabled() after this to get the result. */ 73 void hvf_disable(int disable); 74 75 /* Returns non-0 if the host CPU supports the VMX "unrestricted guest" feature 76 * which allows the virtual CPU to directly run in "real mode". If true, this 77 * allows QEMU to run several vCPU threads in parallel (see cpus.c). Otherwise, 78 * only a a single TCG thread can run, and it will call HVF to run the current 79 * instructions, except in case of "real mode" (paging disabled, typically at 80 * boot time), or MMIO operations. */ 81 82 int hvf_sync_vcpus(void); 83 84 int hvf_init_vcpu(CPUState *); 85 int hvf_vcpu_exec(CPUState *); 86 int hvf_smp_cpu_exec(CPUState *); 87 void hvf_cpu_synchronize_state(CPUState *); 88 void hvf_cpu_synchronize_post_reset(CPUState *); 89 void hvf_cpu_synchronize_post_init(CPUState *); 90 void _hvf_cpu_synchronize_post_init(CPUState *, run_on_cpu_data); 91 92 void hvf_vcpu_destroy(CPUState *); 93 void hvf_raise_event(CPUState *); 94 /* void hvf_reset_vcpu_state(void *opaque); */ 95 void hvf_reset_vcpu(CPUState *); 96 void vmx_update_tpr(CPUState *); 97 void update_apic_tpr(CPUState *); 98 int hvf_put_registers(CPUState *); 99 void vmx_clear_int_window_exiting(CPUState *cpu); 100 101 #define TYPE_HVF_ACCEL ACCEL_CLASS_NAME("hvf") 102 103 #define HVF_STATE(obj) \ 104 OBJECT_CHECK(HVFState, (obj), TYPE_HVF_ACCEL) 105 106 #endif 107