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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ASM_X86_KVM_PARA_H
#define _ASM_X86_KVM_PARA_H
#include <linux/types.h>
/* This CPUID returns the signature 'KVMKVMKVM' in ebx, ecx, and edx. It
* should be used to determine that a VM is running under KVM.
*/
#define KVM_CPUID_SIGNATURE 0x40000000
#define KVM_SIGNATURE "KVMKVMKVM\0\0\0"
/* This CPUID returns two feature bitmaps in eax, edx. Before enabling
* a particular paravirtualization, the appropriate feature bit should
* be checked in eax. The performance hint feature bit should be checked
* in edx.
*/
#define KVM_CPUID_FEATURES 0x40000001
#define KVM_FEATURE_CLOCKSOURCE 0
#define KVM_FEATURE_NOP_IO_DELAY 1
#define KVM_FEATURE_MMU_OP 2
/* This indicates that the new set of kvmclock msrs
* are available. The use of 0x11 and 0x12 is deprecated
*/
#define KVM_FEATURE_CLOCKSOURCE2 3
#define KVM_FEATURE_ASYNC_PF 4
#define KVM_FEATURE_STEAL_TIME 5
#define KVM_FEATURE_PV_EOI 6
#define KVM_FEATURE_PV_UNHALT 7
#define KVM_FEATURE_PV_TLB_FLUSH 9
#define KVM_FEATURE_ASYNC_PF_VMEXIT 10
#define KVM_FEATURE_PV_SEND_IPI 11
#define KVM_FEATURE_POLL_CONTROL 12
#define KVM_FEATURE_PV_SCHED_YIELD 13
#define KVM_FEATURE_ASYNC_PF_INT 14
#define KVM_FEATURE_MSI_EXT_DEST_ID 15
#define KVM_FEATURE_HC_MAP_GPA_RANGE 16
#define KVM_FEATURE_MIGRATION_CONTROL 17
#define KVM_HINTS_REALTIME 0
/* The last 8 bits are used to indicate how to interpret the flags field
* in pvclock structure. If no bits are set, all flags are ignored.
*/
#define KVM_FEATURE_CLOCKSOURCE_STABLE_BIT 24
#define MSR_KVM_WALL_CLOCK 0x11
#define MSR_KVM_SYSTEM_TIME 0x12
#define KVM_MSR_ENABLED 1
/* Custom MSRs falls in the range 0x4b564d00-0x4b564dff */
#define MSR_KVM_WALL_CLOCK_NEW 0x4b564d00
#define MSR_KVM_SYSTEM_TIME_NEW 0x4b564d01
#define MSR_KVM_ASYNC_PF_EN 0x4b564d02
#define MSR_KVM_STEAL_TIME 0x4b564d03
#define MSR_KVM_PV_EOI_EN 0x4b564d04
#define MSR_KVM_POLL_CONTROL 0x4b564d05
#define MSR_KVM_ASYNC_PF_INT 0x4b564d06
#define MSR_KVM_ASYNC_PF_ACK 0x4b564d07
#define MSR_KVM_MIGRATION_CONTROL 0x4b564d08
struct kvm_steal_time {
__u64 steal;
__u32 version;
__u32 flags;
__u8 preempted;
__u8 u8_pad[3];
__u32 pad[11];
};
#define KVM_VCPU_PREEMPTED (1 << 0)
#define KVM_VCPU_FLUSH_TLB (1 << 1)
#define KVM_CLOCK_PAIRING_WALLCLOCK 0
struct kvm_clock_pairing {
__s64 sec;
__s64 nsec;
__u64 tsc;
__u32 flags;
__u32 pad[9];
};
#define KVM_STEAL_ALIGNMENT_BITS 5
#define KVM_STEAL_VALID_BITS ((-1ULL << (KVM_STEAL_ALIGNMENT_BITS + 1)))
#define KVM_STEAL_RESERVED_MASK (((1 << KVM_STEAL_ALIGNMENT_BITS) - 1 ) << 1)
#define KVM_MAX_MMU_OP_BATCH 32
#define KVM_ASYNC_PF_ENABLED (1 << 0)
#define KVM_ASYNC_PF_SEND_ALWAYS (1 << 1)
#define KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT (1 << 2)
#define KVM_ASYNC_PF_DELIVERY_AS_INT (1 << 3)
/* MSR_KVM_ASYNC_PF_INT */
#define KVM_ASYNC_PF_VEC_MASK GENMASK(7, 0)
/* MSR_KVM_MIGRATION_CONTROL */
#define KVM_MIGRATION_READY (1 << 0)
/* KVM_HC_MAP_GPA_RANGE */
#define KVM_MAP_GPA_RANGE_PAGE_SZ_4K 0
#define KVM_MAP_GPA_RANGE_PAGE_SZ_2M (1 << 0)
#define KVM_MAP_GPA_RANGE_PAGE_SZ_1G (1 << 1)
#define KVM_MAP_GPA_RANGE_ENC_STAT(n) (n << 4)
#define KVM_MAP_GPA_RANGE_ENCRYPTED KVM_MAP_GPA_RANGE_ENC_STAT(1)
#define KVM_MAP_GPA_RANGE_DECRYPTED KVM_MAP_GPA_RANGE_ENC_STAT(0)
/* Operations for KVM_HC_MMU_OP */
#define KVM_MMU_OP_WRITE_PTE 1
#define KVM_MMU_OP_FLUSH_TLB 2
#define KVM_MMU_OP_RELEASE_PT 3
/* Payload for KVM_HC_MMU_OP */
struct kvm_mmu_op_header {
__u32 op;
__u32 pad;
};
struct kvm_mmu_op_write_pte {
struct kvm_mmu_op_header header;
__u64 pte_phys;
__u64 pte_val;
};
struct kvm_mmu_op_flush_tlb {
struct kvm_mmu_op_header header;
};
struct kvm_mmu_op_release_pt {
struct kvm_mmu_op_header header;
__u64 pt_phys;
};
#define KVM_PV_REASON_PAGE_NOT_PRESENT 1
#define KVM_PV_REASON_PAGE_READY 2
struct kvm_vcpu_pv_apf_data {
/* Used for 'page not present' events delivered via #PF */
__u32 flags;
/* Used for 'page ready' events delivered via interrupt notification */
__u32 token;
__u8 pad[56];
__u32 enabled;
};
#define KVM_PV_EOI_BIT 0
#define KVM_PV_EOI_MASK (0x1 << KVM_PV_EOI_BIT)
#define KVM_PV_EOI_ENABLED KVM_PV_EOI_MASK
#define KVM_PV_EOI_DISABLED 0x0
#endif /* _ASM_X86_KVM_PARA_H */
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