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Diffstat (limited to 'qemu-kvm.h')
-rw-r--r-- | qemu-kvm.h | 1169 |
1 files changed, 1169 insertions, 0 deletions
diff --git a/qemu-kvm.h b/qemu-kvm.h new file mode 100644 index 000000000..6b3e5a1c4 --- /dev/null +++ b/qemu-kvm.h @@ -0,0 +1,1169 @@ +/* + * qemu/kvm integration + * + * Copyright (C) 2006-2008 Qumranet Technologies + * + * Licensed under the terms of the GNU GPL version 2 or higher. + */ +#ifndef THE_ORIGINAL_AND_TRUE_QEMU_KVM_H +#define THE_ORIGINAL_AND_TRUE_QEMU_KVM_H + +#ifndef QEMU_KVM_NO_CPU +#include "cpu.h" +#endif + +#include <signal.h> +#include <stdlib.h> + +#ifdef CONFIG_KVM + +#if defined(__s390__) +#include <asm/ptrace.h> +#endif + +#include <stdint.h> + +#ifndef __user +#define __user /* temporary, until installed via make headers_install */ +#endif + +#include <linux/kvm.h> + +#include <signal.h> + +/* FIXME: share this number with kvm */ +/* FIXME: or dynamically alloc/realloc regions */ +#ifdef __s390__ +#define KVM_MAX_NUM_MEM_REGIONS 1u +#define MAX_VCPUS 64 +#define LIBKVM_S390_ORIGIN (0UL) +#elif defined(__ia64__) +#define KVM_MAX_NUM_MEM_REGIONS 32u +#define MAX_VCPUS 256 +#else +#define KVM_MAX_NUM_MEM_REGIONS 32u +#define MAX_VCPUS 16 +#endif + +/* kvm abi verison variable */ +extern int kvm_abi; + +/** + * \brief The KVM context + * + * The verbose KVM context + */ + +struct kvm_context { + void *opaque; + /// is dirty pages logging enabled for all regions or not + int dirty_pages_log_all; + /// do not create in-kernel irqchip if set + int no_irqchip_creation; + /// in-kernel irqchip status + int irqchip_in_kernel; + /// ioctl to use to inject interrupts + int irqchip_inject_ioctl; + /// do not create in-kernel pit if set + int no_pit_creation; + /// in-kernel pit status + int pit_in_kernel; +#ifdef KVM_CAP_IRQ_ROUTING + struct kvm_irq_routing *irq_routes; + int nr_allocated_irq_routes; +#endif + void *used_gsi_bitmap; + int max_gsi; +}; + +typedef struct kvm_context *kvm_context_t; + +#include "kvm.h" +int kvm_alloc_kernel_memory(kvm_context_t kvm, unsigned long memory, + void **vm_mem); +int kvm_alloc_userspace_memory(kvm_context_t kvm, unsigned long memory, + void **vm_mem); + +int kvm_arch_create(kvm_context_t kvm, unsigned long phys_mem_bytes, + void **vm_mem); + +int kvm_arch_run(CPUState *env); + + +void kvm_show_code(CPUState *env); + +int handle_halt(CPUState *env); + +#ifndef QEMU_KVM_NO_CPU + +int handle_shutdown(kvm_context_t kvm, CPUState *env); +void post_kvm_run(kvm_context_t kvm, CPUState *env); +int pre_kvm_run(kvm_context_t kvm, CPUState *env); +int handle_io_window(kvm_context_t kvm); +int try_push_interrupts(kvm_context_t kvm); + +#if defined(__x86_64__) || defined(__i386__) +struct kvm_msr_list *kvm_get_msr_list(kvm_context_t); +int kvm_get_msrs(CPUState *env, struct kvm_msr_entry *msrs, int n); +int kvm_set_msrs(CPUState *env, struct kvm_msr_entry *msrs, int n); +int kvm_get_mce_cap_supported(kvm_context_t, uint64_t *mce_cap, + int *max_banks); +int kvm_setup_mce(CPUState *env, uint64_t *mcg_cap); +struct kvm_x86_mce; +int kvm_set_mce(CPUState *env, struct kvm_x86_mce *mce); +#endif + +#endif + +/*! + * \brief Create new KVM context + * + * This creates a new kvm_context. A KVM context is a small area of data that + * holds information about the KVM instance that gets created by this call.\n + * This should always be your first call to KVM. + * + * \param opaque Not used + * \return NULL on failure + */ +int kvm_init(int smp_cpus); + +/*! + * \brief Disable the in-kernel IRQCHIP creation + * + * In-kernel irqchip is enabled by default. If userspace irqchip is to be used, + * this should be called prior to kvm_create(). + * + * \param kvm Pointer to the kvm_context + */ +void kvm_disable_irqchip_creation(kvm_context_t kvm); + +/*! + * \brief Disable the in-kernel PIT creation + * + * In-kernel pit is enabled by default. If userspace pit is to be used, + * this should be called prior to kvm_create(). + * + * \param kvm Pointer to the kvm_context + */ +void kvm_disable_pit_creation(kvm_context_t kvm); + +/*! + * \brief Create new virtual machine + * + * This creates a new virtual machine, maps physical RAM to it, and creates a + * virtual CPU for it.\n + * \n + * Memory gets mapped for addresses 0->0xA0000, 0xC0000->phys_mem_bytes + * + * \param kvm Pointer to the current kvm_context + * \param phys_mem_bytes The amount of physical ram you want the VM to have + * \param phys_mem This pointer will be set to point to the memory that + * kvm_create allocates for physical RAM + * \return 0 on success + */ +int kvm_create(kvm_context_t kvm, unsigned long phys_mem_bytes, + void **phys_mem); +int kvm_create_vm(kvm_context_t kvm); +void kvm_create_irqchip(kvm_context_t kvm); + +/*! + * \brief Start the VCPU + * + * This starts the VCPU and virtualization is started.\n + * \n + * This function will not return until any of these conditions are met: + * - An IO/MMIO handler does not return "0" + * - An exception that neither the guest OS, nor KVM can handle occurs + * + * \note This function will call the callbacks registered in kvm_init() + * to emulate those functions + * \note If you at any point want to interrupt the VCPU, kvm_run() will + * listen to the EINTR signal. This allows you to simulate external interrupts + * and asyncronous IO. + * + * \param kvm Pointer to the current kvm_context + * \param vcpu Which virtual CPU should be started + * \return 0 on success, but you really shouldn't expect this function to + * return except for when an error has occured, or when you have sent it + * an EINTR signal. + */ +int kvm_run(CPUState *env); + +/*! + * \brief Check if a vcpu is ready for interrupt injection + * + * This checks if vcpu interrupts are not masked by mov ss or sti. + * + * \param kvm Pointer to the current kvm_context + * \param vcpu Which virtual CPU should get dumped + * \return boolean indicating interrupt injection readiness + */ +int kvm_is_ready_for_interrupt_injection(CPUState *env); + +/*! + * \brief Read VCPU registers + * + * This gets the GP registers from the VCPU and outputs them + * into a kvm_regs structure + * + * \note This function returns a \b copy of the VCPUs registers.\n + * If you wish to modify the VCPUs GP registers, you should call kvm_set_regs() + * + * \param kvm Pointer to the current kvm_context + * \param vcpu Which virtual CPU should get dumped + * \param regs Pointer to a kvm_regs which will be populated with the VCPUs + * registers values + * \return 0 on success + */ +int kvm_get_regs(CPUState *env, struct kvm_regs *regs); + +/*! + * \brief Write VCPU registers + * + * This sets the GP registers on the VCPU from a kvm_regs structure + * + * \note When this function returns, the regs pointer and the data it points to + * can be discarded + * \param kvm Pointer to the current kvm_context + * \param vcpu Which virtual CPU should get dumped + * \param regs Pointer to a kvm_regs which will be populated with the VCPUs + * registers values + * \return 0 on success + */ +int kvm_set_regs(CPUState *env, struct kvm_regs *regs); +/*! + * \brief Read VCPU fpu registers + * + * This gets the FPU registers from the VCPU and outputs them + * into a kvm_fpu structure + * + * \note This function returns a \b copy of the VCPUs registers.\n + * If you wish to modify the VCPU FPU registers, you should call kvm_set_fpu() + * + * \param kvm Pointer to the current kvm_context + * \param vcpu Which virtual CPU should get dumped + * \param fpu Pointer to a kvm_fpu which will be populated with the VCPUs + * fpu registers values + * \return 0 on success + */ +int kvm_get_fpu(CPUState *env, struct kvm_fpu *fpu); + +/*! + * \brief Write VCPU fpu registers + * + * This sets the FPU registers on the VCPU from a kvm_fpu structure + * + * \note When this function returns, the fpu pointer and the data it points to + * can be discarded + * \param kvm Pointer to the current kvm_context + * \param vcpu Which virtual CPU should get dumped + * \param fpu Pointer to a kvm_fpu which holds the new vcpu fpu state + * \return 0 on success + */ +int kvm_set_fpu(CPUState *env, struct kvm_fpu *fpu); + +/*! + * \brief Read VCPU system registers + * + * This gets the non-GP registers from the VCPU and outputs them + * into a kvm_sregs structure + * + * \note This function returns a \b copy of the VCPUs registers.\n + * If you wish to modify the VCPUs non-GP registers, you should call + * kvm_set_sregs() + * + * \param kvm Pointer to the current kvm_context + * \param vcpu Which virtual CPU should get dumped + * \param regs Pointer to a kvm_sregs which will be populated with the VCPUs + * registers values + * \return 0 on success + */ +int kvm_get_sregs(CPUState *env, struct kvm_sregs *regs); + +/*! + * \brief Write VCPU system registers + * + * This sets the non-GP registers on the VCPU from a kvm_sregs structure + * + * \note When this function returns, the regs pointer and the data it points to + * can be discarded + * \param kvm Pointer to the current kvm_context + * \param vcpu Which virtual CPU should get dumped + * \param regs Pointer to a kvm_sregs which will be populated with the VCPUs + * registers values + * \return 0 on success + */ +int kvm_set_sregs(CPUState *env, struct kvm_sregs *regs); + +#ifdef KVM_CAP_MP_STATE +/*! + * * \brief Read VCPU MP state + * + */ +int kvm_get_mpstate(CPUState *env, struct kvm_mp_state *mp_state); + +/*! + * * \brief Write VCPU MP state + * + */ +int kvm_set_mpstate(CPUState *env, struct kvm_mp_state *mp_state); +/*! + * * \brief Reset VCPU MP state + * + */ +static inline int kvm_reset_mpstate(CPUState *env) +{ + struct kvm_mp_state mp_state = {.mp_state = KVM_MP_STATE_UNINITIALIZED + }; + return kvm_set_mpstate(env, &mp_state); +} +#endif + +/*! + * \brief Simulate an external vectored interrupt + * + * This allows you to simulate an external vectored interrupt. + * + * \param kvm Pointer to the current kvm_context + * \param vcpu Which virtual CPU should get dumped + * \param irq Vector number + * \return 0 on success + */ +int kvm_inject_irq(CPUState *env, unsigned irq); + +#ifdef KVM_CAP_SET_GUEST_DEBUG +int kvm_set_guest_debug(CPUState *env, struct kvm_guest_debug *dbg); +#endif + +#if defined(__i386__) || defined(__x86_64__) +/*! + * \brief Setup a vcpu's cpuid instruction emulation + * + * Set up a table of cpuid function to cpuid outputs.\n + * + * \param kvm Pointer to the current kvm_context + * \param vcpu Which virtual CPU should be initialized + * \param nent number of entries to be installed + * \param entries cpuid function entries table + * \return 0 on success, or -errno on error + */ +int kvm_setup_cpuid(CPUState *env, int nent, + struct kvm_cpuid_entry *entries); + +/*! + * \brief Setup a vcpu's cpuid instruction emulation + * + * Set up a table of cpuid function to cpuid outputs. + * This call replaces the older kvm_setup_cpuid interface by adding a few + * parameters to support cpuid functions that have sub-leaf values. + * + * \param kvm Pointer to the current kvm_context + * \param vcpu Which virtual CPU should be initialized + * \param nent number of entries to be installed + * \param entries cpuid function entries table + * \return 0 on success, or -errno on error + */ +int kvm_setup_cpuid2(CPUState *env, int nent, + struct kvm_cpuid_entry2 *entries); + +/*! + * \brief Setting the number of shadow pages to be allocated to the vm + * + * \param kvm pointer to kvm_context + * \param nrshadow_pages number of pages to be allocated + */ +int kvm_set_shadow_pages(kvm_context_t kvm, unsigned int nrshadow_pages); + +/*! + * \brief Getting the number of shadow pages that are allocated to the vm + * + * \param kvm pointer to kvm_context + * \param nrshadow_pages number of pages to be allocated + */ +int kvm_get_shadow_pages(kvm_context_t kvm, unsigned int *nrshadow_pages); + +#endif + +/*! + * \brief Set a vcpu's signal mask for guest mode + * + * A vcpu can have different signals blocked in guest mode and user mode. + * This allows guest execution to be interrupted on a signal, without requiring + * that the signal be delivered to a signal handler (the signal can be + * dequeued using sigwait(2). + * + * \param kvm Pointer to the current kvm_context + * \param vcpu Which virtual CPU should be initialized + * \param sigset signal mask for guest mode + * \return 0 on success, or -errno on error + */ +int kvm_set_signal_mask(CPUState *env, const sigset_t *sigset); + +/*! + * \brief Dump VCPU registers + * + * This dumps some of the information that KVM has about a virtual CPU, namely: + * - GP Registers + * + * A much more verbose version of this is available as kvm_dump_vcpu() + * + * \param kvm Pointer to the current kvm_context + * \param vcpu Which virtual CPU should get dumped + * \return 0 on success + */ +void kvm_show_regs(CPUState *env); + + +void *kvm_create_phys_mem(kvm_context_t, unsigned long phys_start, + unsigned long len, int log, int writable); +void kvm_destroy_phys_mem(kvm_context_t, unsigned long phys_start, + unsigned long len); +void kvm_unregister_memory_area(kvm_context_t, uint64_t phys_start, + unsigned long len); + +int kvm_is_containing_region(kvm_context_t kvm, unsigned long phys_start, + unsigned long size); +int kvm_register_phys_mem(kvm_context_t kvm, unsigned long phys_start, + void *userspace_addr, unsigned long len, int log); +int kvm_get_dirty_pages(kvm_context_t, unsigned long phys_addr, void *buf); +int kvm_get_dirty_pages_range(kvm_context_t kvm, unsigned long phys_addr, + unsigned long end_addr, void *opaque, + int (*cb)(unsigned long start, + unsigned long len, void *bitmap, + void *opaque)); +int kvm_register_coalesced_mmio(kvm_context_t kvm, uint64_t addr, + uint32_t size); +int kvm_unregister_coalesced_mmio(kvm_context_t kvm, uint64_t addr, + uint32_t size); + +/*! + * \brief Create a memory alias + * + * Aliases a portion of physical memory to another portion. If the guest + * accesses the alias region, it will behave exactly as if it accessed + * the target memory. + */ +int kvm_create_memory_alias(kvm_context_t, uint64_t phys_start, uint64_t len, + uint64_t target_phys); + +/*! + * \brief Destroy a memory alias + * + * Removes an alias created with kvm_create_memory_alias(). + */ +int kvm_destroy_memory_alias(kvm_context_t, uint64_t phys_start); + +/*! + * \brief Get a bitmap of guest ram pages which are allocated to the guest. + * + * \param kvm Pointer to the current kvm_context + * \param phys_addr Memory slot phys addr + * \param bitmap Long aligned address of a big enough bitmap (one bit per page) + */ +int kvm_get_mem_map(kvm_context_t kvm, unsigned long phys_addr, void *bitmap); +int kvm_get_mem_map_range(kvm_context_t kvm, unsigned long phys_addr, + unsigned long len, void *buf, void *opaque, + int (*cb)(unsigned long start, + unsigned long len, void *bitmap, + void *opaque)); +int kvm_set_irq_level(kvm_context_t kvm, int irq, int level, int *status); + +int kvm_dirty_pages_log_enable_slot(kvm_context_t kvm, uint64_t phys_start, + uint64_t len); +int kvm_dirty_pages_log_disable_slot(kvm_context_t kvm, uint64_t phys_start, + uint64_t len); +/*! + * \brief Enable dirty-pages-logging for all memory regions + * + * \param kvm Pointer to the current kvm_context + */ +int kvm_dirty_pages_log_enable_all(kvm_context_t kvm); + +/*! + * \brief Disable dirty-page-logging for some memory regions + * + * Disable dirty-pages-logging for those memory regions that were + * created with dirty-page-logging disabled. + * + * \param kvm Pointer to the current kvm_context + */ +int kvm_dirty_pages_log_reset(kvm_context_t kvm); + +#ifdef KVM_CAP_IRQCHIP +/*! + * \brief Dump in kernel IRQCHIP contents + * + * Dump one of the in kernel irq chip devices, including PIC (master/slave) + * and IOAPIC into a kvm_irqchip structure + * + * \param kvm Pointer to the current kvm_context + * \param chip The irq chip device to be dumped + */ +int kvm_get_irqchip(kvm_context_t kvm, struct kvm_irqchip *chip); + +/*! + * \brief Set in kernel IRQCHIP contents + * + * Write one of the in kernel irq chip devices, including PIC (master/slave) + * and IOAPIC + * + * + * \param kvm Pointer to the current kvm_context + * \param chip THe irq chip device to be written + */ +int kvm_set_irqchip(kvm_context_t kvm, struct kvm_irqchip *chip); + +#if defined(__i386__) || defined(__x86_64__) +/*! + * \brief Get in kernel local APIC for vcpu + * + * Save the local apic state including the timer of a virtual CPU + * + * \param kvm Pointer to the current kvm_context + * \param vcpu Which virtual CPU should be accessed + * \param s Local apic state of the specific virtual CPU + */ +int kvm_get_lapic(CPUState *env, struct kvm_lapic_state *s); + +/*! + * \brief Set in kernel local APIC for vcpu + * + * Restore the local apic state including the timer of a virtual CPU + * + * \param kvm Pointer to the current kvm_context + * \param vcpu Which virtual CPU should be accessed + * \param s Local apic state of the specific virtual CPU + */ +int kvm_set_lapic(CPUState *env, struct kvm_lapic_state *s); + +#endif + +/*! + * \brief Simulate an NMI + * + * This allows you to simulate a non-maskable interrupt. + * + * \param kvm Pointer to the current kvm_context + * \param vcpu Which virtual CPU should get dumped + * \return 0 on success + */ +int kvm_inject_nmi(CPUState *env); + +#endif + +/*! + * \brief Simulate an x86 MCE + * + * This allows you to simulate a x86 MCE. + * + * \param cenv Which virtual CPU should get MCE injected + * \param bank Bank number + * \param status MSR_MCI_STATUS + * \param mcg_status MSR_MCG_STATUS + * \param addr MSR_MCI_ADDR + * \param misc MSR_MCI_MISC + * \param abort_on_error abort on error + */ +void kvm_inject_x86_mce(CPUState *cenv, int bank, uint64_t status, + uint64_t mcg_status, uint64_t addr, uint64_t misc, + int abort_on_error); + +/*! + * \brief Query wheather in kernel pit is used + * + * \param kvm Pointer to the current kvm_context + */ +int kvm_pit_in_kernel(kvm_context_t kvm); + +/*! + * \brief Initialize coalesced MMIO + * + * Check for coalesced MMIO capability and store in context + * + * \param kvm Pointer to the current kvm_context + */ +int kvm_init_coalesced_mmio(kvm_context_t kvm); + +#ifdef KVM_CAP_PIT + +#if defined(__i386__) || defined(__x86_64__) +/*! + * \brief Get in kernel PIT of the virtual domain + * + * Save the PIT state. + * + * \param kvm Pointer to the current kvm_context + * \param s PIT state of the virtual domain + */ +int kvm_get_pit(kvm_context_t kvm, struct kvm_pit_state *s); + +/*! + * \brief Set in kernel PIT of the virtual domain + * + * Restore the PIT state. + * Timer would be retriggerred after restored. + * + * \param kvm Pointer to the current kvm_context + * \param s PIT state of the virtual domain + */ +int kvm_set_pit(kvm_context_t kvm, struct kvm_pit_state *s); + +int kvm_reinject_control(kvm_context_t kvm, int pit_reinject); + +#ifdef KVM_CAP_PIT_STATE2 +/*! + * \brief Check for kvm support of kvm_pit_state2 + * + * \param kvm Pointer to the current kvm_context + * \return 0 on success + */ +int kvm_has_pit_state2(kvm_context_t kvm); + +/*! + * \brief Set in kernel PIT state2 of the virtual domain + * + * + * \param kvm Pointer to the current kvm_context + * \param ps2 PIT state2 of the virtual domain + * \return 0 on success + */ +int kvm_set_pit2(kvm_context_t kvm, struct kvm_pit_state2 *ps2); + +/*! + * \brief Get in kernel PIT state2 of the virtual domain + * + * + * \param kvm Pointer to the current kvm_context + * \param ps2 PIT state2 of the virtual domain + * \return 0 on success + */ +int kvm_get_pit2(kvm_context_t kvm, struct kvm_pit_state2 *ps2); + +#endif +#endif +#endif + +#ifdef KVM_CAP_VAPIC + +/*! + * \brief Enable kernel tpr access reporting + * + * When tpr access reporting is enabled, the kernel will call the + * ->tpr_access() callback every time the guest vcpu accesses the tpr. + * + * \param kvm Pointer to the current kvm_context + * \param vcpu vcpu to enable tpr access reporting on + */ +int kvm_enable_tpr_access_reporting(CPUState *env); + +/*! + * \brief Disable kernel tpr access reporting + * + * Undoes the effect of kvm_enable_tpr_access_reporting(). + * + * \param kvm Pointer to the current kvm_context + * \param vcpu vcpu to disable tpr access reporting on + */ +int kvm_disable_tpr_access_reporting(CPUState *env); + +int kvm_enable_vapic(CPUState *env, uint64_t vapic); + +#endif + +#if defined(__s390__) +int kvm_s390_initial_reset(kvm_context_t kvm, int slot); +int kvm_s390_interrupt(kvm_context_t kvm, int slot, + struct kvm_s390_interrupt *kvmint); +int kvm_s390_set_initial_psw(kvm_context_t kvm, int slot, psw_t psw); +int kvm_s390_store_status(kvm_context_t kvm, int slot, unsigned long addr); +#endif + +#ifdef KVM_CAP_DEVICE_ASSIGNMENT +/*! + * \brief Notifies host kernel about a PCI device to be assigned to a guest + * + * Used for PCI device assignment, this function notifies the host + * kernel about the assigning of the physical PCI device to a guest. + * + * \param kvm Pointer to the current kvm_context + * \param assigned_dev Parameters, like bus, devfn number, etc + */ +int kvm_assign_pci_device(kvm_context_t kvm, + struct kvm_assigned_pci_dev *assigned_dev); + +/*! + * \brief Assign IRQ for an assigned device + * + * Used for PCI device assignment, this function assigns IRQ numbers for + * an physical device and guest IRQ handling. + * + * \param kvm Pointer to the current kvm_context + * \param assigned_irq Parameters, like dev id, host irq, guest irq, etc + */ +int kvm_assign_irq(kvm_context_t kvm, struct kvm_assigned_irq *assigned_irq); + +#ifdef KVM_CAP_ASSIGN_DEV_IRQ +/*! + * \brief Deassign IRQ for an assigned device + * + * Used for PCI device assignment, this function deassigns IRQ numbers + * for an assigned device. + * + * \param kvm Pointer to the current kvm_context + * \param assigned_irq Parameters, like dev id, host irq, guest irq, etc + */ +int kvm_deassign_irq(kvm_context_t kvm, struct kvm_assigned_irq *assigned_irq); +#endif +#endif + +/*! + * \brief Determines whether destroying memory regions is allowed + * + * KVM before 2.6.29 had a bug when destroying memory regions. + * + * \param kvm Pointer to the current kvm_context + */ +int kvm_destroy_memory_region_works(kvm_context_t kvm); + +#ifdef KVM_CAP_DEVICE_DEASSIGNMENT +/*! + * \brief Notifies host kernel about a PCI device to be deassigned from a guest + * + * Used for hot remove PCI device, this function notifies the host + * kernel about the deassigning of the physical PCI device from a guest. + * + * \param kvm Pointer to the current kvm_context + * \param assigned_dev Parameters, like bus, devfn number, etc + */ +int kvm_deassign_pci_device(kvm_context_t kvm, + struct kvm_assigned_pci_dev *assigned_dev); +#endif + +/*! + * \brief Checks whether the generic irq routing capability is present + * + * Checks whether kvm can reroute interrupts among the various interrupt + * controllers. + * + * \param kvm Pointer to the current kvm_context + */ +int kvm_has_gsi_routing(kvm_context_t kvm); + +/*! + * \brief Determines the number of gsis that can be routed + * + * Returns the number of distinct gsis that can be routed by kvm. This is + * also the number of distinct routes (if a gsi has two routes, than another + * gsi cannot be used...) + * + * \param kvm Pointer to the current kvm_context + */ +int kvm_get_gsi_count(kvm_context_t kvm); + +/*! + * \brief Clears the temporary irq routing table + * + * Clears the temporary irq routing table. Nothing is committed to the + * running VM. + * + * \param kvm Pointer to the current kvm_context + */ +int kvm_clear_gsi_routes(kvm_context_t kvm); + +/*! + * \brief Adds an irq route to the temporary irq routing table + * + * Adds an irq route to the temporary irq routing table. Nothing is + * committed to the running VM. + * + * \param kvm Pointer to the current kvm_context + */ +int kvm_add_irq_route(kvm_context_t kvm, int gsi, int irqchip, int pin); + +/*! + * \brief Removes an irq route from the temporary irq routing table + * + * Adds an irq route to the temporary irq routing table. Nothing is + * committed to the running VM. + * + * \param kvm Pointer to the current kvm_context + */ +int kvm_del_irq_route(kvm_context_t kvm, int gsi, int irqchip, int pin); + +struct kvm_irq_routing_entry; +/*! + * \brief Adds a routing entry to the temporary irq routing table + * + * Adds a filled routing entry to the temporary irq routing table. Nothing is + * committed to the running VM. + * + * \param kvm Pointer to the current kvm_context + */ +int kvm_add_routing_entry(kvm_context_t kvm, + struct kvm_irq_routing_entry *entry); + +/*! + * \brief Removes a routing from the temporary irq routing table + * + * Remove a routing to the temporary irq routing table. Nothing is + * committed to the running VM. + * + * \param kvm Pointer to the current kvm_context + */ +int kvm_del_routing_entry(kvm_context_t kvm, + struct kvm_irq_routing_entry *entry); + +/*! + * \brief Updates a routing in the temporary irq routing table + * + * Update a routing in the temporary irq routing table + * with a new value. entry type and GSI can not be changed. + * Nothing is committed to the running VM. + * + * \param kvm Pointer to the current kvm_context + */ +int kvm_update_routing_entry(kvm_context_t kvm, + struct kvm_irq_routing_entry *entry, + struct kvm_irq_routing_entry *newentry); + +/*! + * \brief Commit the temporary irq routing table + * + * Commit the temporary irq routing table to the running VM. + * + * \param kvm Pointer to the current kvm_context + */ +int kvm_commit_irq_routes(kvm_context_t kvm); + +/*! + * \brief Get unused GSI number for irq routing table + * + * Get unused GSI number for irq routing table + * + * \param kvm Pointer to the current kvm_context + */ +int kvm_get_irq_route_gsi(kvm_context_t kvm); + +/*! + * \brief Create a file descriptor for injecting interrupts + * + * Creates an eventfd based file-descriptor that maps to a specific GSI + * in the guest. eventfd compliant signaling (write() from userspace, or + * eventfd_signal() from kernelspace) will cause the GSI to inject + * itself into the guest at the next available window. + * + * \param kvm Pointer to the current kvm_context + * \param gsi GSI to assign to this fd + * \param flags reserved, must be zero + */ +int kvm_irqfd(kvm_context_t kvm, int gsi, int flags); + +#ifdef KVM_CAP_DEVICE_MSIX +int kvm_assign_set_msix_nr(kvm_context_t kvm, + struct kvm_assigned_msix_nr *msix_nr); +int kvm_assign_set_msix_entry(kvm_context_t kvm, + struct kvm_assigned_msix_entry *entry); +#endif + +uint32_t kvm_get_supported_cpuid(kvm_context_t kvm, uint32_t function, int reg); + +#else /* !CONFIG_KVM */ + +typedef struct kvm_context *kvm_context_t; +typedef struct kvm_vcpu_context *kvm_vcpu_context_t; + +struct kvm_pit_state { +}; + +static inline int kvm_init(int smp_cpus) +{ + return 0; +} + +#ifndef QEMU_KVM_NO_CPU + +static inline void kvm_inject_x86_mce(CPUState *cenv, int bank, + uint64_t status, uint64_t mcg_status, + uint64_t addr, uint64_t misc, + int abort_on_error) +{ + if (abort_on_error) + abort(); +} + +#endif + +extern int kvm_allowed; + +#endif /* !CONFIG_KVM */ + + +int kvm_main_loop(void); +int kvm_init_ap(void); +#ifndef QEMU_KVM_NO_CPU +int kvm_vcpu_inited(CPUState *env); +void kvm_load_registers(CPUState *env); +void kvm_save_registers(CPUState *env); +void kvm_load_mpstate(CPUState *env); +void kvm_save_mpstate(CPUState *env); +int kvm_cpu_exec(CPUState *env); +int kvm_insert_breakpoint(CPUState * current_env, target_ulong addr, + target_ulong len, int type); +int kvm_remove_breakpoint(CPUState * current_env, target_ulong addr, + target_ulong len, int type); +void kvm_remove_all_breakpoints(CPUState * current_env); +int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap); +void kvm_apic_init(CPUState *env); +/* called from vcpu initialization */ +void qemu_kvm_load_lapic(CPUState *env); +#endif + +void kvm_hpet_enable_kpit(void); +void kvm_hpet_disable_kpit(void); +int kvm_set_irq(int irq, int level, int *status); + +int kvm_physical_memory_set_dirty_tracking(int enable); +int kvm_update_dirty_pages_log(void); + +#ifndef QEMU_KVM_NO_CPU +void qemu_kvm_call_with_env(void (*func)(void *), void *data, CPUState *env); +void qemu_kvm_cpuid_on_env(CPUState *env); +void kvm_inject_interrupt(CPUState *env, int mask); +void kvm_update_after_sipi(CPUState *env); +void kvm_update_interrupt_request(CPUState *env); +#endif +void kvm_set_phys_mem(target_phys_addr_t start_addr, ram_addr_t size, + ram_addr_t phys_offset); +void *kvm_cpu_create_phys_mem(target_phys_addr_t start_addr, unsigned long size, + int log, int writable); + +void kvm_cpu_destroy_phys_mem(target_phys_addr_t start_addr, + unsigned long size); +void kvm_qemu_log_memory(target_phys_addr_t start, target_phys_addr_t size, + int log); +int kvm_setup_guest_memory(void *area, unsigned long size); +int kvm_qemu_create_memory_alias(uint64_t phys_start, uint64_t len, + uint64_t target_phys); +int kvm_qemu_destroy_memory_alias(uint64_t phys_start); + +int kvm_arch_qemu_create_context(void); + +#ifndef QEMU_KVM_NO_CPU +void kvm_arch_save_regs(CPUState *env); +void kvm_arch_load_regs(CPUState *env); +void kvm_arch_load_mpstate(CPUState *env); +void kvm_arch_save_mpstate(CPUState *env); +int kvm_arch_init_vcpu(CPUState *cenv); +int kvm_arch_pre_run(CPUState *env, struct kvm_run *run); +int kvm_arch_post_run(CPUState *env, struct kvm_run *run); +int kvm_arch_has_work(CPUState *env); +void kvm_arch_process_irqchip_events(CPUState *env); +int kvm_arch_try_push_interrupts(void *opaque); +void kvm_arch_push_nmi(void *opaque); +void kvm_arch_cpu_reset(CPUState *env); +int kvm_set_boot_cpu_id(uint32_t id); + +struct kvm_guest_debug; +struct kvm_debug_exit_arch; + +struct kvm_sw_breakpoint { + target_ulong pc; + target_ulong saved_insn; + int use_count; + QTAILQ_ENTRY(kvm_sw_breakpoint) entry; +}; + +QTAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint); + +int kvm_arch_debug(struct kvm_debug_exit_arch *arch_info); +int kvm_sw_breakpoints_active(CPUState *env); +struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *env, + target_ulong pc); +int kvm_arch_insert_sw_breakpoint(CPUState * current_env, + struct kvm_sw_breakpoint *bp); +int kvm_arch_remove_sw_breakpoint(CPUState * current_env, + struct kvm_sw_breakpoint *bp); +int kvm_arch_insert_hw_breakpoint(target_ulong addr, target_ulong len, + int type); +int kvm_arch_remove_hw_breakpoint(target_ulong addr, target_ulong len, + int type); +void kvm_arch_remove_all_hw_breakpoints(void); +void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg); + +#endif + +void qemu_kvm_aio_wait_start(void); +void qemu_kvm_aio_wait(void); +void qemu_kvm_aio_wait_end(void); + +void qemu_kvm_notify_work(void); + +#ifndef QEMU_KVM_NO_CPU +void kvm_tpr_opt_setup(void); +void kvm_tpr_access_report(CPUState *env, uint64_t rip, int is_write); +void kvm_tpr_vcpu_start(CPUState *env); +#endif + +int qemu_kvm_get_dirty_pages(unsigned long phys_addr, void *buf); +int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size); +int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size); + +int kvm_arch_init_irq_routing(void); + +int kvm_mmio_read(void *opaque, uint64_t addr, uint8_t * data, int len); +int kvm_mmio_write(void *opaque, uint64_t addr, uint8_t * data, int len); + +#ifdef CONFIG_KVM_DEVICE_ASSIGNMENT +struct ioperm_data; + +void kvm_ioperm(CPUState *env, void *data); +void kvm_add_ioperm_data(struct ioperm_data *data); +void kvm_remove_ioperm_data(unsigned long start_port, unsigned long num); +void kvm_arch_do_ioperm(void *_data); +#endif + +#define ALIGN(x, y) (((x)+(y)-1) & ~((y)-1)) +#ifndef QEMU_KVM_NO_CPU +#define BITMAP_SIZE(m) (ALIGN(((m)>>TARGET_PAGE_BITS), HOST_LONG_BITS) / 8) +#endif + +#ifdef CONFIG_KVM +#include "qemu-queue.h" + +extern int kvm_allowed; +extern int kvm_irqchip; +extern int kvm_pit; +extern int kvm_pit_reinject; +extern int kvm_nested; +extern kvm_context_t kvm_context; + +struct ioperm_data { + unsigned long start_port; + unsigned long num; + int turn_on; + QLIST_ENTRY(ioperm_data) entries; +}; + +void qemu_kvm_cpu_stop(CPUState *env); +int kvm_arch_halt(CPUState *env); +int handle_tpr_access(void *opaque, CPUState *env, uint64_t rip, + int is_write); +int kvm_has_sync_mmu(void); + +#define kvm_enabled() (kvm_allowed) +#define qemu_kvm_pit_in_kernel() kvm_pit_in_kernel(kvm_context) +#define qemu_kvm_has_gsi_routing() kvm_has_gsi_routing(kvm_context) +#ifdef TARGET_I386 +#define qemu_kvm_has_pit_state2() kvm_has_pit_state2(kvm_context) +#endif +void kvm_init_vcpu(CPUState *env); +void kvm_load_tsc(CPUState *env); +#else +#define kvm_has_sync_mmu() (0) +#define kvm_enabled() (0) +#define kvm_nested 0 +#define qemu_kvm_pit_in_kernel() (0) +#define qemu_kvm_has_gsi_routing() (0) +#ifndef QEMU_KVM_NO_CPU +#ifdef TARGET_I386 +#define qemu_kvm_has_pit_state2() (0) +#endif +#define kvm_load_registers(env) do {} while(0) +#define kvm_save_registers(env) do {} while(0) +#define kvm_save_mpstate(env) do {} while(0) +#define qemu_kvm_cpu_stop(env) do {} while(0) +static inline void kvm_init_vcpu(CPUState *env) +{ +} + +static inline void kvm_load_tsc(CPUState *env) +{ +} +#endif +#endif + +void kvm_mutex_unlock(void); +void kvm_mutex_lock(void); + +int kvm_physical_sync_dirty_bitmap(target_phys_addr_t start_addr, + target_phys_addr_t end_addr); + +int kvm_log_start(target_phys_addr_t phys_addr, target_phys_addr_t len); +int kvm_log_stop(target_phys_addr_t phys_addr, target_phys_addr_t len); + + +static inline int kvm_sync_vcpus(void) +{ + return 0; +} + +#ifndef QEMU_KVM_NO_CPU +void kvm_arch_get_registers(CPUState *env); + +static inline void kvm_arch_put_registers(CPUState *env) +{ + kvm_load_registers(env); +} + +void kvm_cpu_synchronize_state(CPUState *env); + +static inline void cpu_synchronize_state(CPUState *env) +{ + if (kvm_enabled()) { + kvm_cpu_synchronize_state(env); + } +} + +uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function, + int reg); + + +#endif + +static inline int kvm_set_migration_log(int enable) +{ + return kvm_physical_memory_set_dirty_tracking(enable); +} + + +int kvm_irqchip_in_kernel(void); +#ifdef CONFIG_KVM + +typedef struct KVMSlot { + target_phys_addr_t start_addr; + ram_addr_t memory_size; + ram_addr_t phys_offset; + int slot; + int flags; +} KVMSlot; + +typedef struct kvm_dirty_log KVMDirtyLog; + +typedef struct KVMState { + KVMSlot slots[32]; + int fd; + int vmfd; + int coalesced_mmio; + int broken_set_mem_region; + int migration_log; + int vcpu_events; +#ifdef KVM_CAP_SET_GUEST_DEBUG + QTAILQ_HEAD(, kvm_sw_breakpoint) kvm_sw_breakpoints; +#endif + int irqchip_in_kernel; + + struct kvm_context kvm_context; +} KVMState; + +extern KVMState *kvm_state; + +int kvm_ioctl(KVMState *s, int type, ...); +int kvm_vm_ioctl(KVMState *s, int type, ...); +int kvm_vcpu_ioctl(CPUState *env, int type, ...); +int kvm_check_extension(KVMState *s, unsigned int ext); + +int kvm_tpr_enable_vapic(CPUState *env); + +#endif + +#endif |