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 "cpu.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 uint32_t hvf_get_supported_cpuid(uint32_t func, uint32_t idx, 28 int reg); 29 #define hvf_enabled() (hvf_allowed) 30 #else 31 #define hvf_enabled() 0 32 #define hvf_get_supported_cpuid(func, idx, reg) 0 33 #endif 34 35 /* hvf_slot flags */ 36 #define HVF_SLOT_LOG (1 << 0) 37 38 typedef struct hvf_slot { 39 uint64_t start; 40 uint64_t size; 41 uint8_t *mem; 42 int slot_id; 43 uint32_t flags; 44 MemoryRegion *region; 45 } hvf_slot; 46 47 typedef struct hvf_vcpu_caps { 48 uint64_t vmx_cap_pinbased; 49 uint64_t vmx_cap_procbased; 50 uint64_t vmx_cap_procbased2; 51 uint64_t vmx_cap_entry; 52 uint64_t vmx_cap_exit; 53 uint64_t vmx_cap_preemption_timer; 54 } hvf_vcpu_caps; 55 56 typedef struct HVFState { 57 AccelState parent; 58 hvf_slot slots[32]; 59 int num_slots; 60 61 hvf_vcpu_caps *hvf_caps; 62 } HVFState; 63 extern HVFState *hvf_state; 64 65 void hvf_set_phys_mem(MemoryRegionSection *, bool); 66 void hvf_handle_io(CPUArchState *, uint16_t, void *, 67 int, int, int); 68 hvf_slot *hvf_find_overlap_slot(uint64_t, uint64_t); 69 70 /* Disable HVF if |disable| is 1, otherwise, enable it iff it is supported by 71 * the host CPU. Use hvf_enabled() after this to get the result. */ 72 void hvf_disable(int disable); 73 74 /* Returns non-0 if the host CPU supports the VMX "unrestricted guest" feature 75 * which allows the virtual CPU to directly run in "real mode". If true, this 76 * allows QEMU to run several vCPU threads in parallel (see cpus.c). Otherwise, 77 * only a a single TCG thread can run, and it will call HVF to run the current 78 * instructions, except in case of "real mode" (paging disabled, typically at 79 * boot time), or MMIO operations. */ 80 81 int hvf_sync_vcpus(void); 82 83 int hvf_init_vcpu(CPUState *); 84 int hvf_vcpu_exec(CPUState *); 85 int hvf_smp_cpu_exec(CPUState *); 86 void hvf_cpu_synchronize_state(CPUState *); 87 void hvf_cpu_synchronize_post_reset(CPUState *); 88 void hvf_cpu_synchronize_post_init(CPUState *); 89 void _hvf_cpu_synchronize_post_init(CPUState *, run_on_cpu_data); 90 91 void hvf_vcpu_destroy(CPUState *); 92 void hvf_raise_event(CPUState *); 93 /* void hvf_reset_vcpu_state(void *opaque); */ 94 void hvf_reset_vcpu(CPUState *); 95 void vmx_update_tpr(CPUState *); 96 void update_apic_tpr(CPUState *); 97 int hvf_put_registers(CPUState *); 98 void vmx_clear_int_window_exiting(CPUState *cpu); 99 100 #define TYPE_HVF_ACCEL ACCEL_CLASS_NAME("hvf") 101 102 #define HVF_STATE(obj) \ 103 OBJECT_CHECK(HVFState, (obj), TYPE_HVF_ACCEL) 104 105 #endif 106