[qemu.git] / linux-headers / asm-x86 / kvm_para.h

#ifndef _ASM_X86_KVM_PARA_H
#define _ASM_X86_KVM_PARA_H

#include <linux/types.h>
#include <asm/hyperv.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

/* This CPUID returns a feature bitmap in eax.  Before enabling a particular
 * paravirtualization, the appropriate feature bit should be checked.
 */
#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

/* 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

struct kvm_steal_time {
	__u64 steal;
	__u32 version;
	__u32 flags;
	__u32 pad[12];
};

#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)

/* 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 {
	__u32 reason;
	__u8 pad[60];
	__u32 enabled;
};


#endif /* _ASM_X86_KVM_PARA_H */
Commit	Line	Data
51b24e34 JK	1	#ifndef _ASM_X86_KVM_PARA_H
	2	#define _ASM_X86_KVM_PARA_H
	3
	4	#include <linux/types.h>
	5	#include <asm/hyperv.h>
	6
	7	/* This CPUID returns the signature 'KVMKVMKVM' in ebx, ecx, and edx. It
	8	* should be used to determine that a VM is running under KVM.
	9	*/
	10	#define KVM_CPUID_SIGNATURE 0x40000000
	11
	12	/* This CPUID returns a feature bitmap in eax. Before enabling a particular
	13	* paravirtualization, the appropriate feature bit should be checked.
	14	*/
	15	#define KVM_CPUID_FEATURES 0x40000001
	16	#define KVM_FEATURE_CLOCKSOURCE 0
	17	#define KVM_FEATURE_NOP_IO_DELAY 1
	18	#define KVM_FEATURE_MMU_OP 2
	19	/* This indicates that the new set of kvmclock msrs
	20	* are available. The use of 0x11 and 0x12 is deprecated
	21	*/
	22	#define KVM_FEATURE_CLOCKSOURCE2 3
	23	#define KVM_FEATURE_ASYNC_PF 4
7c6da3de	24	#define KVM_FEATURE_STEAL_TIME 5
51b24e34 JK	25
	26	/* The last 8 bits are used to indicate how to interpret the flags field
	27	* in pvclock structure. If no bits are set, all flags are ignored.
	28	*/
	29	#define KVM_FEATURE_CLOCKSOURCE_STABLE_BIT 24
	30
	31	#define MSR_KVM_WALL_CLOCK 0x11
	32	#define MSR_KVM_SYSTEM_TIME 0x12
	33
7c6da3de	34	#define KVM_MSR_ENABLED 1
51b24e34 JK	35	/* Custom MSRs falls in the range 0x4b564d00-0x4b564dff */
	36	#define MSR_KVM_WALL_CLOCK_NEW 0x4b564d00
	37	#define MSR_KVM_SYSTEM_TIME_NEW 0x4b564d01
	38	#define MSR_KVM_ASYNC_PF_EN 0x4b564d02
7c6da3de AG	39	#define MSR_KVM_STEAL_TIME 0x4b564d03
	40
	41	struct kvm_steal_time {
	42	__u64 steal;
	43	__u32 version;
	44	__u32 flags;
	45	__u32 pad[12];
	46	};
	47
	48	#define KVM_STEAL_ALIGNMENT_BITS 5
	49	#define KVM_STEAL_VALID_BITS ((-1ULL << (KVM_STEAL_ALIGNMENT_BITS + 1)))
	50	#define KVM_STEAL_RESERVED_MASK (((1 << KVM_STEAL_ALIGNMENT_BITS) - 1 ) << 1)
51b24e34 JK	51
	52	#define KVM_MAX_MMU_OP_BATCH 32
	53
	54	#define KVM_ASYNC_PF_ENABLED (1 << 0)
	55	#define KVM_ASYNC_PF_SEND_ALWAYS (1 << 1)
	56
	57	/* Operations for KVM_HC_MMU_OP */
	58	#define KVM_MMU_OP_WRITE_PTE 1
	59	#define KVM_MMU_OP_FLUSH_TLB 2
	60	#define KVM_MMU_OP_RELEASE_PT 3
	61
	62	/* Payload for KVM_HC_MMU_OP */
	63	struct kvm_mmu_op_header {
	64	__u32 op;
	65	__u32 pad;
	66	};
	67
	68	struct kvm_mmu_op_write_pte {
	69	struct kvm_mmu_op_header header;
	70	__u64 pte_phys;
	71	__u64 pte_val;
	72	};
	73
	74	struct kvm_mmu_op_flush_tlb {
	75	struct kvm_mmu_op_header header;
	76	};
	77
	78	struct kvm_mmu_op_release_pt {
	79	struct kvm_mmu_op_header header;
	80	__u64 pt_phys;
	81	};
	82
	83	#define KVM_PV_REASON_PAGE_NOT_PRESENT 1
	84	#define KVM_PV_REASON_PAGE_READY 2
	85
	86	struct kvm_vcpu_pv_apf_data {
	87	__u32 reason;
	88	__u8 pad[60];
	89	__u32 enabled;
	90	};
	91
	92
	93	#endif /* _ASM_X86_KVM_PARA_H */