/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

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#ifndef __LINUX_KVM_H

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#define __LINUX_KVM_H

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/*

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* Userspace interface for /dev/kvm - kernel based virtual machine

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*

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* Note: you must update KVM_API_VERSION if you change this interface.

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*/

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#include <linux/const.h>

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#include <linux/types.h>

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#include <linux/ioctl.h>

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#include <asm/kvm.h>

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#define KVM_API_VERSION 12

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/* *** Deprecated interfaces *** */

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#define KVM_TRC_SHIFT 16

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#define KVM_TRC_ENTRYEXIT (1 << KVM_TRC_SHIFT)

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#define KVM_TRC_HANDLER (1 << (KVM_TRC_SHIFT + 1))

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#define KVM_TRC_VMENTRY (KVM_TRC_ENTRYEXIT + 0x01)

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#define KVM_TRC_VMEXIT (KVM_TRC_ENTRYEXIT + 0x02)

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#define KVM_TRC_PAGE_FAULT (KVM_TRC_HANDLER + 0x01)

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#define KVM_TRC_HEAD_SIZE 12

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#define KVM_TRC_CYCLE_SIZE 8

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#define KVM_TRC_EXTRA_MAX 7

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#define KVM_TRC_INJ_VIRQ (KVM_TRC_HANDLER + 0x02)

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#define KVM_TRC_REDELIVER_EVT (KVM_TRC_HANDLER + 0x03)

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#define KVM_TRC_PEND_INTR (KVM_TRC_HANDLER + 0x04)

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#define KVM_TRC_IO_READ (KVM_TRC_HANDLER + 0x05)

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#define KVM_TRC_IO_WRITE (KVM_TRC_HANDLER + 0x06)

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#define KVM_TRC_CR_READ (KVM_TRC_HANDLER + 0x07)

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#define KVM_TRC_CR_WRITE (KVM_TRC_HANDLER + 0x08)

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#define KVM_TRC_DR_READ (KVM_TRC_HANDLER + 0x09)

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#define KVM_TRC_DR_WRITE (KVM_TRC_HANDLER + 0x0A)

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#define KVM_TRC_MSR_READ (KVM_TRC_HANDLER + 0x0B)

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#define KVM_TRC_MSR_WRITE (KVM_TRC_HANDLER + 0x0C)

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#define KVM_TRC_CPUID (KVM_TRC_HANDLER + 0x0D)

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#define KVM_TRC_INTR (KVM_TRC_HANDLER + 0x0E)

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#define KVM_TRC_NMI (KVM_TRC_HANDLER + 0x0F)

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#define KVM_TRC_VMMCALL (KVM_TRC_HANDLER + 0x10)

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#define KVM_TRC_HLT (KVM_TRC_HANDLER + 0x11)

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#define KVM_TRC_CLTS (KVM_TRC_HANDLER + 0x12)

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#define KVM_TRC_LMSW (KVM_TRC_HANDLER + 0x13)

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#define KVM_TRC_APIC_ACCESS (KVM_TRC_HANDLER + 0x14)

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#define KVM_TRC_TDP_FAULT (KVM_TRC_HANDLER + 0x15)

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#define KVM_TRC_GTLB_WRITE (KVM_TRC_HANDLER + 0x16)

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#define KVM_TRC_STLB_WRITE (KVM_TRC_HANDLER + 0x17)

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#define KVM_TRC_STLB_INVAL (KVM_TRC_HANDLER + 0x18)

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#define KVM_TRC_PPC_INSTR (KVM_TRC_HANDLER + 0x19)

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struct kvm_user_trace_setup {

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__u32 buf_size;

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__u32 buf_nr;

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};

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#define __KVM_DEPRECATED_MAIN_W_0x06 \

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_IOW(KVMIO, 0x06, struct kvm_user_trace_setup)

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#define __KVM_DEPRECATED_MAIN_0x07 _IO(KVMIO, 0x07)

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#define __KVM_DEPRECATED_MAIN_0x08 _IO(KVMIO, 0x08)

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#define __KVM_DEPRECATED_VM_R_0x70 _IOR(KVMIO, 0x70, struct kvm_assigned_irq)

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struct kvm_breakpoint {

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__u32 enabled;

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__u32 padding;

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__u64 address;

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};

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struct kvm_debug_guest {

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__u32 enabled;

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__u32 pad;

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struct kvm_breakpoint breakpoints[4];

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__u32 singlestep;

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};

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#define __KVM_DEPRECATED_VCPU_W_0x87 _IOW(KVMIO, 0x87, struct kvm_debug_guest)

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/* *** End of deprecated interfaces *** */

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/* for KVM_CREATE_MEMORY_REGION */

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struct kvm_memory_region {

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__u32 slot;

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__u32 flags;

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__u64 guest_phys_addr;

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__u64 memory_size; /* bytes */

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};

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/* for KVM_SET_USER_MEMORY_REGION */

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struct kvm_userspace_memory_region {

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__u32 slot;

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__u32 flags;

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__u64 guest_phys_addr;

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__u64 memory_size; /* bytes */

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__u64 userspace_addr; /* start of the userspace allocated memory */

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};

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/*

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* The bit 0 ~ bit 15 of kvm_memory_region::flags are visible for userspace,

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* other bits are reserved for kvm internal use which are defined in

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* include/linux/kvm_host.h.

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*/

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#define KVM_MEM_LOG_DIRTY_PAGES (1UL << 0)

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#define KVM_MEM_READONLY (1UL << 1)

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/* for KVM_IRQ_LINE */

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struct kvm_irq_level {

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/*

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* ACPI gsi notion of irq.

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* For IA-64 (APIC model) IOAPIC0: irq 0-23; IOAPIC1: irq 24-47..

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* For X86 (standard AT mode) PIC0/1: irq 0-15. IOAPIC0: 0-23..

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* For ARM: See Documentation/virt/kvm/api.rst

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*/

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union {

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__u32 irq;

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__s32 status;

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};

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__u32 level;

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};

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struct kvm_irqchip {

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__u32 chip_id;

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__u32 pad;

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union {

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char dummy[512]; /* reserving space */

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#ifdef __KVM_HAVE_PIT

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struct kvm_pic_state pic;

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#endif

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#ifdef __KVM_HAVE_IOAPIC

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struct kvm_ioapic_state ioapic;

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#endif

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} chip;

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};

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/* for KVM_CREATE_PIT2 */

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struct kvm_pit_config {

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__u32 flags;

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__u32 pad[15];

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};

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#define KVM_PIT_SPEAKER_DUMMY 1

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struct kvm_s390_skeys {

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__u64 start_gfn;

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__u64 count;

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__u64 skeydata_addr;

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__u32 flags;

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__u32 reserved[9];

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};

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#define KVM_S390_CMMA_PEEK (1 << 0)

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/**

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* kvm_s390_cmma_log - Used for CMMA migration.

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*

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* Used both for input and output.

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*

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* @start_gfn: Guest page number to start from.

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* @count: Size of the result buffer.

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* @flags: Control operation mode via KVM_S390_CMMA_* flags

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* @remaining: Used with KVM_S390_GET_CMMA_BITS. Indicates how many dirty

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* pages are still remaining.

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* @mask: Used with KVM_S390_SET_CMMA_BITS. Bitmap of bits to actually set

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* in the PGSTE.

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* @values: Pointer to the values buffer.

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*

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* Used in KVM_S390_{G,S}ET_CMMA_BITS ioctls.

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*/

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struct kvm_s390_cmma_log {

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__u64 start_gfn;

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__u32 count;

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__u32 flags;

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union {

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__u64 remaining;

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__u64 mask;

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};

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__u64 values;

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};

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struct kvm_hyperv_exit {

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#define KVM_EXIT_HYPERV_SYNIC 1

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#define KVM_EXIT_HYPERV_HCALL 2

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#define KVM_EXIT_HYPERV_SYNDBG 3

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__u32 type;

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__u32 pad1;

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union {

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struct {

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__u32 msr;

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__u32 pad2;

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__u64 control;

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__u64 evt_page;

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__u64 msg_page;

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} synic;

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struct {

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__u64 input;

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__u64 result;

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__u64 params[2];

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} hcall;

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struct {

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__u32 msr;

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__u32 pad2;

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__u64 control;

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__u64 status;

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__u64 send_page;

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__u64 recv_page;

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__u64 pending_page;

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} syndbg;

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} u;

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};

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struct kvm_xen_exit {

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#define KVM_EXIT_XEN_HCALL 1

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__u32 type;

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union {

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struct {

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__u32 longmode;

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__u32 cpl;

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__u64 input;

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__u64 result;

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__u64 params[6];

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} hcall;

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} u;

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};

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#define KVM_S390_GET_SKEYS_NONE 1

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#define KVM_S390_SKEYS_MAX 1048576

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#define KVM_EXIT_UNKNOWN 0

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#define KVM_EXIT_EXCEPTION 1

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#define KVM_EXIT_IO 2

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#define KVM_EXIT_HYPERCALL 3

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#define KVM_EXIT_DEBUG 4

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#define KVM_EXIT_HLT 5

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#define KVM_EXIT_MMIO 6

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#define KVM_EXIT_IRQ_WINDOW_OPEN 7

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#define KVM_EXIT_SHUTDOWN 8

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#define KVM_EXIT_FAIL_ENTRY 9

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#define KVM_EXIT_INTR 10

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#define KVM_EXIT_SET_TPR 11

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#define KVM_EXIT_TPR_ACCESS 12

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#define KVM_EXIT_S390_SIEIC 13

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#define KVM_EXIT_S390_RESET 14

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#define KVM_EXIT_DCR 15 /* deprecated */

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#define KVM_EXIT_NMI 16

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#define KVM_EXIT_INTERNAL_ERROR 17

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#define KVM_EXIT_OSI 18

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#define KVM_EXIT_PAPR_HCALL 19

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#define KVM_EXIT_S390_UCONTROL 20

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#define KVM_EXIT_WATCHDOG 21

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#define KVM_EXIT_S390_TSCH 22

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#define KVM_EXIT_EPR 23

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#define KVM_EXIT_SYSTEM_EVENT 24

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#define KVM_EXIT_S390_STSI 25

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#define KVM_EXIT_IOAPIC_EOI 26

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#define KVM_EXIT_HYPERV 27

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#define KVM_EXIT_ARM_NISV 28

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#define KVM_EXIT_X86_RDMSR 29

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#define KVM_EXIT_X86_WRMSR 30

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#define KVM_EXIT_DIRTY_RING_FULL 31

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#define KVM_EXIT_AP_RESET_HOLD 32

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#define KVM_EXIT_X86_BUS_LOCK 33

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#define KVM_EXIT_XEN 34

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/* For KVM_EXIT_INTERNAL_ERROR */

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/* Emulate instruction failed. */

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#define KVM_INTERNAL_ERROR_EMULATION 1

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/* Encounter unexpected simultaneous exceptions. */

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#define KVM_INTERNAL_ERROR_SIMUL_EX 2

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/* Encounter unexpected vm-exit due to delivery event. */

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#define KVM_INTERNAL_ERROR_DELIVERY_EV 3

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/* Encounter unexpected vm-exit reason */

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#define KVM_INTERNAL_ERROR_UNEXPECTED_EXIT_REASON 4

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/* Flags that describe what fields in emulation_failure hold valid data. */

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#define KVM_INTERNAL_ERROR_EMULATION_FLAG_INSTRUCTION_BYTES (1ULL << 0)

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/* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */

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struct kvm_run {

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/* in */

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__u8 request_interrupt_window;

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__u8 immediate_exit;

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__u8 padding1[6];

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/* out */

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__u32 exit_reason;

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__u8 ready_for_interrupt_injection;

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__u8 if_flag;

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__u16 flags;

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/* in (pre_kvm_run), out (post_kvm_run) */

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__u64 cr8;

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__u64 apic_base;

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#ifdef __KVM_S390

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/* the processor status word for s390 */

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__u64 psw_mask; /* psw upper half */

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__u64 psw_addr; /* psw lower half */

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#endif

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union {

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/* KVM_EXIT_UNKNOWN */

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struct {

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__u64 hardware_exit_reason;

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} hw;

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/* KVM_EXIT_FAIL_ENTRY */

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struct {

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__u64 hardware_entry_failure_reason;

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__u32 cpu;

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} fail_entry;

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/* KVM_EXIT_EXCEPTION */

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struct {

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__u32 exception;

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__u32 error_code;

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} ex;

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/* KVM_EXIT_IO */

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struct {

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#define KVM_EXIT_IO_IN 0

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#define KVM_EXIT_IO_OUT 1

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__u8 direction;

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__u8 size; /* bytes */

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__u16 port;

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__u32 count;

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__u64 data_offset; /* relative to kvm_run start */

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} io;

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/* KVM_EXIT_DEBUG */

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struct {

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struct kvm_debug_exit_arch arch;

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} debug;

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/* KVM_EXIT_MMIO */

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struct {

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__u64 phys_addr;

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__u8 data[8];

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__u32 len;

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__u8 is_write;

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} mmio;

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/* KVM_EXIT_HYPERCALL */

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struct {

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__u64 nr;

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__u64 args[6];

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__u64 ret;

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__u32 longmode;

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__u32 pad;

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} hypercall;

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/* KVM_EXIT_TPR_ACCESS */

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struct {

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__u64 rip;

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__u32 is_write;

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__u32 pad;

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} tpr_access;

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/* KVM_EXIT_S390_SIEIC */

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struct {

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__u8 icptcode;

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__u16 ipa;

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__u32 ipb;

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} s390_sieic;

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/* KVM_EXIT_S390_RESET */

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#define KVM_S390_RESET_POR 1

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#define KVM_S390_RESET_CLEAR 2

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#define KVM_S390_RESET_SUBSYSTEM 4

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#define KVM_S390_RESET_CPU_INIT 8

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#define KVM_S390_RESET_IPL 16

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__u64 s390_reset_flags;

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/* KVM_EXIT_S390_UCONTROL */

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struct {

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__u64 trans_exc_code;

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__u32 pgm_code;

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} s390_ucontrol;

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/* KVM_EXIT_DCR (deprecated) */

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struct {

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__u32 dcrn;

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__u32 data;

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__u8 is_write;

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} dcr;

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/* KVM_EXIT_INTERNAL_ERROR */

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struct {

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__u32 suberror;

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/* Available with KVM_CAP_INTERNAL_ERROR_DATA: */

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__u32 ndata;

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__u64 data[16];

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} internal;

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/*

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* KVM_INTERNAL_ERROR_EMULATION

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*

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* "struct emulation_failure" is an overlay of "struct internal"

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* that is used for the KVM_INTERNAL_ERROR_EMULATION sub-type of

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* KVM_EXIT_INTERNAL_ERROR. Note, unlike other internal error

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* sub-types, this struct is ABI! It also needs to be backwards

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* compatible with "struct internal". Take special care that

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* "ndata" is correct, that new fields are enumerated in "flags",

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* and that each flag enumerates fields that are 64-bit aligned

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* and sized (so that ndata+internal.data[] is valid/accurate).

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*

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* Space beyond the defined fields may be used to store arbitrary

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* debug information relating to the emulation failure. It is

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* accounted for in "ndata" but the format is unspecified and is

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* not represented in "flags". Any such information is *not* ABI!

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*/

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struct {

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__u32 suberror;

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__u32 ndata;

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__u64 flags;

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union {

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struct {

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__u8 insn_size;

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__u8 insn_bytes[15];

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};

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};

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/* Arbitrary debug data may follow. */

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} emulation_failure;

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/* KVM_EXIT_OSI */

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struct {

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__u64 gprs[32];

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} osi;

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/* KVM_EXIT_PAPR_HCALL */

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struct {

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__u64 nr;

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__u64 ret;

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__u64 args[9];

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} papr_hcall;

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/* KVM_EXIT_S390_TSCH */

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struct {

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__u16 subchannel_id;

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__u16 subchannel_nr;

[430] Fix | Delete

__u32 io_int_parm;

[431] Fix | Delete

__u32 io_int_word;

[432] Fix | Delete

__u32 ipb;

[433] Fix | Delete

__u8 dequeued;

[434] Fix | Delete

} s390_tsch;

[435] Fix | Delete

/* KVM_EXIT_EPR */

[436] Fix | Delete

struct {

[437] Fix | Delete

__u32 epr;

[438] Fix | Delete

} epr;

[439] Fix | Delete

/* KVM_EXIT_SYSTEM_EVENT */

[440] Fix | Delete

struct {

[441] Fix | Delete

#define KVM_SYSTEM_EVENT_SHUTDOWN 1

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#define KVM_SYSTEM_EVENT_RESET 2

[443] Fix | Delete

#define KVM_SYSTEM_EVENT_CRASH 3

[444] Fix | Delete

__u32 type;

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__u64 flags;

[446] Fix | Delete

} system_event;

[447] Fix | Delete

/* KVM_EXIT_S390_STSI */

[448] Fix | Delete

struct {

[449] Fix | Delete

__u64 addr;

[450] Fix | Delete

__u8 ar;

[451] Fix | Delete

__u8 reserved;

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__u8 fc;

[453] Fix | Delete

__u8 sel1;

[454] Fix | Delete

__u16 sel2;

[455] Fix | Delete

} s390_stsi;

[456] Fix | Delete

/* KVM_EXIT_IOAPIC_EOI */

[457] Fix | Delete

struct {

[458] Fix | Delete

__u8 vector;

[459] Fix | Delete

} eoi;

[460] Fix | Delete

/* KVM_EXIT_HYPERV */

[461] Fix | Delete

struct kvm_hyperv_exit hyperv;

[462] Fix | Delete

/* KVM_EXIT_ARM_NISV */

[463] Fix | Delete

struct {

[464] Fix | Delete

__u64 esr_iss;

[465] Fix | Delete

__u64 fault_ipa;

[466] Fix | Delete

} arm_nisv;

[467] Fix | Delete

/* KVM_EXIT_X86_RDMSR / KVM_EXIT_X86_WRMSR */

[468] Fix | Delete

struct {

[469] Fix | Delete

__u8 error; /* user -> kernel */

[470] Fix | Delete

__u8 pad[7];

[471] Fix | Delete

#define KVM_MSR_EXIT_REASON_INVAL (1 << 0)

[472] Fix | Delete

#define KVM_MSR_EXIT_REASON_UNKNOWN (1 << 1)

[473] Fix | Delete

#define KVM_MSR_EXIT_REASON_FILTER (1 << 2)

[474] Fix | Delete

__u32 reason; /* kernel -> user */

[475] Fix | Delete

__u32 index; /* kernel -> user */

[476] Fix | Delete

__u64 data; /* kernel <-> user */

[477] Fix | Delete

} msr;

[478] Fix | Delete

/* KVM_EXIT_XEN */

[479] Fix | Delete

struct kvm_xen_exit xen;

[480] Fix | Delete

/* Fix the size of the union. */

[481] Fix | Delete

char padding[256];

[482] Fix | Delete

};

[483] Fix | Delete

[484] Fix | Delete

/* 2048 is the size of the char array used to bound/pad the size

[485] Fix | Delete

* of the union that holds sync regs.

[486] Fix | Delete

*/

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#define SYNC_REGS_SIZE_BYTES 2048

[488] Fix | Delete

/*

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* shared registers between kvm and userspace.

[490] Fix | Delete

* kvm_valid_regs specifies the register classes set by the host

[491] Fix | Delete

* kvm_dirty_regs specified the register classes dirtied by userspace

[492] Fix | Delete

* struct kvm_sync_regs is architecture specific, as well as the

[493] Fix | Delete

* bits for kvm_valid_regs and kvm_dirty_regs

[494] Fix | Delete

*/

[495] Fix | Delete

__u64 kvm_valid_regs;

[496] Fix | Delete

__u64 kvm_dirty_regs;

[497] Fix | Delete

union {

[498] Fix | Delete

struct kvm_sync_regs regs;

[499] Fix | Delete