include/sysemu/hvf.h

   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