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Diffstat (limited to 'qemu/target-arm/kvm_arm.h')
| -rw-r--r-- | qemu/target-arm/kvm_arm.h | 251 |
1 files changed, 0 insertions, 251 deletions
diff --git a/qemu/target-arm/kvm_arm.h b/qemu/target-arm/kvm_arm.h deleted file mode 100644 index 345233c18..000000000 --- a/qemu/target-arm/kvm_arm.h +++ /dev/null @@ -1,251 +0,0 @@ -/* - * QEMU KVM support -- ARM specific functions. - * - * Copyright (c) 2012 Linaro Limited - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * - */ - -#ifndef QEMU_KVM_ARM_H -#define QEMU_KVM_ARM_H - -#include "sysemu/kvm.h" -#include "exec/memory.h" - -/** - * kvm_arm_vcpu_init: - * @cs: CPUState - * - * Initialize (or reinitialize) the VCPU by invoking the - * KVM_ARM_VCPU_INIT ioctl with the CPU type and feature - * bitmask specified in the CPUState. - * - * Returns: 0 if success else < 0 error code - */ -int kvm_arm_vcpu_init(CPUState *cs); - -/** - * kvm_arm_register_device: - * @mr: memory region for this device - * @devid: the KVM device ID - * @group: device control API group for setting addresses - * @attr: device control API address type - * @dev_fd: device control device file descriptor (or -1 if not supported) - * - * Remember the memory region @mr, and when it is mapped by the - * machine model, tell the kernel that base address using the - * KVM_ARM_SET_DEVICE_ADDRESS ioctl or the newer device control API. @devid - * should be the ID of the device as defined by KVM_ARM_SET_DEVICE_ADDRESS or - * the arm-vgic device in the device control API. - * The machine model may map - * and unmap the device multiple times; the kernel will only be told the final - * address at the point where machine init is complete. - */ -void kvm_arm_register_device(MemoryRegion *mr, uint64_t devid, uint64_t group, - uint64_t attr, int dev_fd); - -/** - * kvm_arm_init_cpreg_list: - * @cs: CPUState - * - * Initialize the CPUState's cpreg list according to the kernel's - * definition of what CPU registers it knows about (and throw away - * the previous TCG-created cpreg list). - * - * Returns: 0 if success, else < 0 error code - */ -int kvm_arm_init_cpreg_list(ARMCPU *cpu); - -/** - * kvm_arm_reg_syncs_via_cpreg_list - * regidx: KVM register index - * - * Return true if this KVM register should be synchronized via the - * cpreg list of arbitrary system registers, false if it is synchronized - * by hand using code in kvm_arch_get/put_registers(). - */ -bool kvm_arm_reg_syncs_via_cpreg_list(uint64_t regidx); - -/** - * kvm_arm_cpreg_level - * regidx: KVM register index - * - * Return the level of this coprocessor/system register. Return value is - * either KVM_PUT_RUNTIME_STATE, KVM_PUT_RESET_STATE, or KVM_PUT_FULL_STATE. - */ -int kvm_arm_cpreg_level(uint64_t regidx); - -/** - * write_list_to_kvmstate: - * @cpu: ARMCPU - * @level: the state level to sync - * - * For each register listed in the ARMCPU cpreg_indexes list, write - * its value from the cpreg_values list into the kernel (via ioctl). - * This updates KVM's working data structures from TCG data or - * from incoming migration state. - * - * Returns: true if all register values were updated correctly, - * false if some register was unknown to the kernel or could not - * be written (eg constant register with the wrong value). - * Note that we do not stop early on failure -- we will attempt - * writing all registers in the list. - */ -bool write_list_to_kvmstate(ARMCPU *cpu, int level); - -/** - * write_kvmstate_to_list: - * @cpu: ARMCPU - * - * For each register listed in the ARMCPU cpreg_indexes list, write - * its value from the kernel into the cpreg_values list. This is used to - * copy info from KVM's working data structures into TCG or - * for outbound migration. - * - * Returns: true if all register values were read correctly, - * false if some register was unknown or could not be read. - * Note that we do not stop early on failure -- we will attempt - * reading all registers in the list. - */ -bool write_kvmstate_to_list(ARMCPU *cpu); - -/** - * kvm_arm_reset_vcpu: - * @cpu: ARMCPU - * - * Called at reset time to kernel registers to their initial values. - */ -void kvm_arm_reset_vcpu(ARMCPU *cpu); - -#ifdef CONFIG_KVM -/** - * kvm_arm_create_scratch_host_vcpu: - * @cpus_to_try: array of QEMU_KVM_ARM_TARGET_* values (terminated with - * QEMU_KVM_ARM_TARGET_NONE) to try as fallback if the kernel does not - * know the PREFERRED_TARGET ioctl. Passing NULL is the same as passing - * an empty array. - * @fdarray: filled in with kvmfd, vmfd, cpufd file descriptors in that order - * @init: filled in with the necessary values for creating a host - * vcpu. If NULL is provided, will not init the vCPU (though the cpufd - * will still be set up). - * - * Create a scratch vcpu in its own VM of the type preferred by the host - * kernel (as would be used for '-cpu host'), for purposes of probing it - * for capabilities. - * - * Returns: true on success (and fdarray and init are filled in), - * false on failure (and fdarray and init are not valid). - */ -bool kvm_arm_create_scratch_host_vcpu(const uint32_t *cpus_to_try, - int *fdarray, - struct kvm_vcpu_init *init); - -/** - * kvm_arm_destroy_scratch_host_vcpu: - * @fdarray: array of fds as set up by kvm_arm_create_scratch_host_vcpu - * - * Tear down the scratch vcpu created by kvm_arm_create_scratch_host_vcpu. - */ -void kvm_arm_destroy_scratch_host_vcpu(int *fdarray); - -#define TYPE_ARM_HOST_CPU "host-" TYPE_ARM_CPU -#define ARM_HOST_CPU_CLASS(klass) \ - OBJECT_CLASS_CHECK(ARMHostCPUClass, (klass), TYPE_ARM_HOST_CPU) -#define ARM_HOST_CPU_GET_CLASS(obj) \ - OBJECT_GET_CLASS(ARMHostCPUClass, (obj), TYPE_ARM_HOST_CPU) - -typedef struct ARMHostCPUClass { - /*< private >*/ - ARMCPUClass parent_class; - /*< public >*/ - - uint64_t features; - uint32_t target; - const char *dtb_compatible; -} ARMHostCPUClass; - -/** - * kvm_arm_get_host_cpu_features: - * @ahcc: ARMHostCPUClass to fill in - * - * Probe the capabilities of the host kernel's preferred CPU and fill - * in the ARMHostCPUClass struct accordingly. - */ -bool kvm_arm_get_host_cpu_features(ARMHostCPUClass *ahcc); - - -/** - * kvm_arm_sync_mpstate_to_kvm - * @cpu: ARMCPU - * - * If supported set the KVM MP_STATE based on QEMU's model. - */ -int kvm_arm_sync_mpstate_to_kvm(ARMCPU *cpu); - -/** - * kvm_arm_sync_mpstate_to_qemu - * @cpu: ARMCPU - * - * If supported get the MP_STATE from KVM and store in QEMU's model. - */ -int kvm_arm_sync_mpstate_to_qemu(ARMCPU *cpu); - -int kvm_arm_vgic_probe(void); - -#else - -static inline int kvm_arm_vgic_probe(void) -{ - return 0; -} - -#endif - -static inline const char *gic_class_name(void) -{ - return kvm_irqchip_in_kernel() ? "kvm-arm-gic" : "arm_gic"; -} - -/** - * gicv3_class_name - * - * Return name of GICv3 class to use depending on whether KVM acceleration is - * in use. May throw an error if the chosen implementation is not available. - * - * Returns: class name to use - */ -const char *gicv3_class_name(void); - -/** - * kvm_arm_handle_debug: - * @cs: CPUState - * @debug_exit: debug part of the KVM exit structure - * - * Returns: TRUE if the debug exception was handled. - */ -bool kvm_arm_handle_debug(CPUState *cs, struct kvm_debug_exit_arch *debug_exit); - -/** - * kvm_arm_hw_debug_active: - * @cs: CPU State - * - * Return: TRUE if any hardware breakpoints in use. - */ - -bool kvm_arm_hw_debug_active(CPUState *cs); - -/** - * kvm_arm_copy_hw_debug_data: - * - * @ptr: kvm_guest_debug_arch structure - * - * Copy the architecture specific debug registers into the - * kvm_guest_debug ioctl structure. - */ -struct kvm_guest_debug_arch; - -void kvm_arm_copy_hw_debug_data(struct kvm_guest_debug_arch *ptr); - -#endif |