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lastdragon
2026-09-06 12:53:21 -06:00
parent 662efe3c2a
commit ad2088d178
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linux-7.2.3/include/xen/interface/hvm/dm_op.h
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/* SPDX-License-Identifier: MIT */
/*
* Copyright (c) 2016, Citrix Systems Inc
*/
#ifndef __XEN_PUBLIC_HVM_DM_OP_H__
#define __XEN_PUBLIC_HVM_DM_OP_H__
struct xen_dm_op_buf {
GUEST_HANDLE(void) h;
xen_ulong_t size;
};
DEFINE_GUEST_HANDLE_STRUCT(xen_dm_op_buf);
#endif /* __XEN_PUBLIC_HVM_DM_OP_H__ */
linux-7.2.3/include/xen/interface/hvm/hvm_op.h
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/* SPDX-License-Identifier: MIT */
#ifndef __XEN_PUBLIC_HVM_HVM_OP_H__
#define __XEN_PUBLIC_HVM_HVM_OP_H__
#include <xen/interface/xen.h>
/* Get/set subcommands: the second argument of the hypercall is a
* pointer to a xen_hvm_param struct. */
#define HVMOP_set_param 0
#define HVMOP_get_param 1
struct xen_hvm_param {
domid_t domid; /* IN */
uint32_t index; /* IN */
uint64_t value; /* IN/OUT */
};
DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_param);
/* Hint from PV drivers for pagetable destruction. */
#define HVMOP_pagetable_dying 9
struct xen_hvm_pagetable_dying {
/* Domain with a pagetable about to be destroyed. */
domid_t domid;
/* guest physical address of the toplevel pagetable dying */
aligned_u64 gpa;
};
typedef struct xen_hvm_pagetable_dying xen_hvm_pagetable_dying_t;
DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_pagetable_dying_t);
enum hvmmem_type_t {
HVMMEM_ram_rw, /* Normal read/write guest RAM */
HVMMEM_ram_ro, /* Read-only; writes are discarded */
HVMMEM_mmio_dm, /* Reads and write go to the device model */
};
#define HVMOP_get_mem_type 15
/* Return hvmmem_type_t for the specified pfn. */
struct xen_hvm_get_mem_type {
/* Domain to be queried. */
domid_t domid;
/* OUT variable. */
uint16_t mem_type;
uint16_t pad[2]; /* align next field on 8-byte boundary */
/* IN variable. */
uint64_t pfn;
};
DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_get_mem_type);
#if defined(__i386__) || defined(__x86_64__)
/*
* HVMOP_set_evtchn_upcall_vector: Set a <vector> that should be used for event
* channel upcalls on the specified <vcpu>. If set,
* this vector will be used in preference to the
* domain global callback via (see
* HVM_PARAM_CALLBACK_IRQ).
*/
#define HVMOP_set_evtchn_upcall_vector 23
struct xen_hvm_evtchn_upcall_vector {
uint32_t vcpu;
uint8_t vector;
};
typedef struct xen_hvm_evtchn_upcall_vector xen_hvm_evtchn_upcall_vector_t;
DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_evtchn_upcall_vector_t);
#endif /* defined(__i386__) || defined(__x86_64__) */
#endif /* __XEN_PUBLIC_HVM_HVM_OP_H__ */
linux-7.2.3/include/xen/interface/hvm/hvm_vcpu.h
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/* SPDX-License-Identifier: MIT */
/*
* Copyright (c) 2015, Roger Pau Monne <roger.pau@citrix.com>
*/
#ifndef __XEN_PUBLIC_HVM_HVM_VCPU_H__
#define __XEN_PUBLIC_HVM_HVM_VCPU_H__
#include "../xen.h"
struct vcpu_hvm_x86_32 {
uint32_t eax;
uint32_t ecx;
uint32_t edx;
uint32_t ebx;
uint32_t esp;
uint32_t ebp;
uint32_t esi;
uint32_t edi;
uint32_t eip;
uint32_t eflags;
uint32_t cr0;
uint32_t cr3;
uint32_t cr4;
uint32_t pad1;
/*
* EFER should only be used to set the NXE bit (if required)
* when starting a vCPU in 32bit mode with paging enabled or
* to set the LME/LMA bits in order to start the vCPU in
* compatibility mode.
*/
uint64_t efer;
uint32_t cs_base;
uint32_t ds_base;
uint32_t ss_base;
uint32_t es_base;
uint32_t tr_base;
uint32_t cs_limit;
uint32_t ds_limit;
uint32_t ss_limit;
uint32_t es_limit;
uint32_t tr_limit;
uint16_t cs_ar;
uint16_t ds_ar;
uint16_t ss_ar;
uint16_t es_ar;
uint16_t tr_ar;
uint16_t pad2[3];
};
/*
* The layout of the _ar fields of the segment registers is the
* following:
*
* Bits [0,3]: type (bits 40-43).
* Bit 4: s (descriptor type, bit 44).
* Bit [5,6]: dpl (descriptor privilege level, bits 45-46).
* Bit 7: p (segment-present, bit 47).
* Bit 8: avl (available for system software, bit 52).
* Bit 9: l (64-bit code segment, bit 53).
* Bit 10: db (meaning depends on the segment, bit 54).
* Bit 11: g (granularity, bit 55)
* Bits [12,15]: unused, must be blank.
*
* A more complete description of the meaning of this fields can be
* obtained from the Intel SDM, Volume 3, section 3.4.5.
*/
struct vcpu_hvm_x86_64 {
uint64_t rax;
uint64_t rcx;
uint64_t rdx;
uint64_t rbx;
uint64_t rsp;
uint64_t rbp;
uint64_t rsi;
uint64_t rdi;
uint64_t rip;
uint64_t rflags;
uint64_t cr0;
uint64_t cr3;
uint64_t cr4;
uint64_t efer;
/*
* Using VCPU_HVM_MODE_64B implies that the vCPU is launched
* directly in long mode, so the cached parts of the segment
* registers get set to match that environment.
*
* If the user wants to launch the vCPU in compatibility mode
* the 32-bit structure should be used instead.
*/
};
struct vcpu_hvm_context {
#define VCPU_HVM_MODE_32B 0 /* 32bit fields of the structure will be used. */
#define VCPU_HVM_MODE_64B 1 /* 64bit fields of the structure will be used. */
uint32_t mode;
uint32_t pad;
/* CPU registers. */
union {
struct vcpu_hvm_x86_32 x86_32;
struct vcpu_hvm_x86_64 x86_64;
} cpu_regs;
};
typedef struct vcpu_hvm_context vcpu_hvm_context_t;
#endif /* __XEN_PUBLIC_HVM_HVM_VCPU_H__ */
linux-7.2.3/include/xen/interface/hvm/ioreq.h
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/* SPDX-License-Identifier: MIT */
/*
* ioreq.h: I/O request definitions for device models
* Copyright (c) 2004, Intel Corporation.
*/
#ifndef __XEN_PUBLIC_HVM_IOREQ_H__
#define __XEN_PUBLIC_HVM_IOREQ_H__
#define IOREQ_READ 1
#define IOREQ_WRITE 0
#define STATE_IOREQ_NONE 0
#define STATE_IOREQ_READY 1
#define STATE_IOREQ_INPROCESS 2
#define STATE_IORESP_READY 3
#define IOREQ_TYPE_PIO 0 /* pio */
#define IOREQ_TYPE_COPY 1 /* mmio ops */
#define IOREQ_TYPE_PCI_CONFIG 2
#define IOREQ_TYPE_TIMEOFFSET 7
#define IOREQ_TYPE_INVALIDATE 8 /* mapcache */
/*
* VMExit dispatcher should cooperate with instruction decoder to
* prepare this structure and notify service OS and DM by sending
* virq.
*
* For I/O type IOREQ_TYPE_PCI_CONFIG, the physical address is formatted
* as follows:
*
* 63....48|47..40|39..35|34..32|31........0
* SEGMENT |BUS |DEV |FN |OFFSET
*/
struct ioreq {
uint64_t addr; /* physical address */
uint64_t data; /* data (or paddr of data) */
uint32_t count; /* for rep prefixes */
uint32_t size; /* size in bytes */
uint32_t vp_eport; /* evtchn for notifications to/from device model */
uint16_t _pad0;
uint8_t state:4;
uint8_t data_is_ptr:1; /* if 1, data above is the guest paddr
* of the real data to use. */
uint8_t dir:1; /* 1=read, 0=write */
uint8_t df:1;
uint8_t _pad1:1;
uint8_t type; /* I/O type */
};
#endif /* __XEN_PUBLIC_HVM_IOREQ_H__ */
linux-7.2.3/include/xen/interface/hvm/params.h
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/* SPDX-License-Identifier: MIT */
#ifndef __XEN_PUBLIC_HVM_PARAMS_H__
#define __XEN_PUBLIC_HVM_PARAMS_H__
#include <xen/interface/hvm/hvm_op.h>
/*
* Parameter space for HVMOP_{set,get}_param.
*/
#define HVM_PARAM_CALLBACK_IRQ 0
/*
* How should CPU0 event-channel notifications be delivered?
*
* If val == 0 then CPU0 event-channel notifications are not delivered.
* If val != 0, val[63:56] encodes the type, as follows:
*/
#define HVM_PARAM_CALLBACK_TYPE_GSI 0
/*
* val[55:0] is a delivery GSI. GSI 0 cannot be used, as it aliases val == 0,
* and disables all notifications.
*/
#define HVM_PARAM_CALLBACK_TYPE_PCI_INTX 1
/*
* val[55:0] is a delivery PCI INTx line:
* Domain = val[47:32], Bus = val[31:16] DevFn = val[15:8], IntX = val[1:0]
*/
#if defined(__i386__) || defined(__x86_64__)
#define HVM_PARAM_CALLBACK_TYPE_VECTOR 2
/*
* val[7:0] is a vector number. Check for XENFEAT_hvm_callback_vector to know
* if this delivery method is available.
*/
#elif defined(__arm__) || defined(__aarch64__)
#define HVM_PARAM_CALLBACK_TYPE_PPI 2
/*
* val[55:16] needs to be zero.
* val[15:8] is interrupt flag of the PPI used by event-channel:
* bit 8: the PPI is edge(1) or level(0) triggered
* bit 9: the PPI is active low(1) or high(0)
* val[7:0] is a PPI number used by event-channel.
* This is only used by ARM/ARM64 and masking/eoi the interrupt associated to
* the notification is handled by the interrupt controller.
*/
#endif
#define HVM_PARAM_STORE_PFN 1
#define HVM_PARAM_STORE_EVTCHN 2
#define HVM_PARAM_PAE_ENABLED 4
#define HVM_PARAM_IOREQ_PFN 5
#define HVM_PARAM_BUFIOREQ_PFN 6
/*
* Set mode for virtual timers (currently x86 only):
* delay_for_missed_ticks (default):
* Do not advance a vcpu's time beyond the correct delivery time for
* interrupts that have been missed due to preemption. Deliver missed
* interrupts when the vcpu is rescheduled and advance the vcpu's virtual
* time stepwise for each one.
* no_delay_for_missed_ticks:
* As above, missed interrupts are delivered, but guest time always tracks
* wallclock (i.e., real) time while doing so.
* no_missed_ticks_pending:
* No missed interrupts are held pending. Instead, to ensure ticks are
* delivered at some non-zero rate, if we detect missed ticks then the
* internal tick alarm is not disabled if the VCPU is preempted during the
* next tick period.
* one_missed_tick_pending:
* Missed interrupts are collapsed together and delivered as one 'late tick'.
* Guest time always tracks wallclock (i.e., real) time.
*/
#define HVM_PARAM_TIMER_MODE 10
#define HVMPTM_delay_for_missed_ticks 0
#define HVMPTM_no_delay_for_missed_ticks 1
#define HVMPTM_no_missed_ticks_pending 2
#define HVMPTM_one_missed_tick_pending 3
/* Boolean: Enable virtual HPET (high-precision event timer)? (x86-only) */
#define HVM_PARAM_HPET_ENABLED 11
/* Identity-map page directory used by Intel EPT when CR0.PG=0. */
#define HVM_PARAM_IDENT_PT 12
/* Device Model domain, defaults to 0. */
#define HVM_PARAM_DM_DOMAIN 13
/* ACPI S state: currently support S0 and S3 on x86. */
#define HVM_PARAM_ACPI_S_STATE 14
/* TSS used on Intel when CR0.PE=0. */
#define HVM_PARAM_VM86_TSS 15
/* Boolean: Enable aligning all periodic vpts to reduce interrupts */
#define HVM_PARAM_VPT_ALIGN 16
/* Console debug shared memory ring and event channel */
#define HVM_PARAM_CONSOLE_PFN 17
#define HVM_PARAM_CONSOLE_EVTCHN 18
#define HVM_NR_PARAMS 19
#endif /* __XEN_PUBLIC_HVM_PARAMS_H__ */
linux-7.2.3/include/xen/interface/hvm/start_info.h
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/* SPDX-License-Identifier: MIT */
/*
* Copyright (c) 2016, Citrix Systems, Inc.
*/
#ifndef __XEN_PUBLIC_ARCH_X86_HVM_START_INFO_H__
#define __XEN_PUBLIC_ARCH_X86_HVM_START_INFO_H__
/*
* Start of day structure passed to PVH guests and to HVM guests in %ebx.
*
* NOTE: nothing will be loaded at physical address 0, so a 0 value in any
* of the address fields should be treated as not present.
*
* 0 +----------------+
* | magic | Contains the magic value XEN_HVM_START_MAGIC_VALUE
* | | ("xEn3" with the 0x80 bit of the "E" set).
* 4 +----------------+
* | version | Version of this structure. Current version is 1. New
* | | versions are guaranteed to be backwards-compatible.
* 8 +----------------+
* | flags | SIF_xxx flags.
* 12 +----------------+
* | nr_modules | Number of modules passed to the kernel.
* 16 +----------------+
* | modlist_paddr | Physical address of an array of modules
* | | (layout of the structure below).
* 24 +----------------+
* | cmdline_paddr | Physical address of the command line,
* | | a zero-terminated ASCII string.
* 32 +----------------+
* | rsdp_paddr | Physical address of the RSDP ACPI data structure.
* 40 +----------------+
* | memmap_paddr | Physical address of the (optional) memory map. Only
* | | present in version 1 and newer of the structure.
* 48 +----------------+
* | memmap_entries | Number of entries in the memory map table. Zero
* | | if there is no memory map being provided. Only
* | | present in version 1 and newer of the structure.
* 52 +----------------+
* | reserved | Version 1 and newer only.
* 56 +----------------+
*
* The layout of each entry in the module structure is the following:
*
* 0 +----------------+
* | paddr | Physical address of the module.
* 8 +----------------+
* | size | Size of the module in bytes.
* 16 +----------------+
* | cmdline_paddr | Physical address of the command line,
* | | a zero-terminated ASCII string.
* 24 +----------------+
* | reserved |
* 32 +----------------+
*
* The layout of each entry in the memory map table is as follows:
*
* 0 +----------------+
* | addr | Base address
* 8 +----------------+
* | size | Size of mapping in bytes
* 16 +----------------+
* | type | Type of mapping as defined between the hypervisor
* | | and guest. See XEN_HVM_MEMMAP_TYPE_* values below.
* 20 +----------------|
* | reserved |
* 24 +----------------+
*
* The address and sizes are always a 64bit little endian unsigned integer.
*
* NB: Xen on x86 will always try to place all the data below the 4GiB
* boundary.
*
* Version numbers of the hvm_start_info structure have evolved like this:
*
* Version 0: Initial implementation.
*
* Version 1: Added the memmap_paddr/memmap_entries fields (plus 4 bytes of
* padding) to the end of the hvm_start_info struct. These new
* fields can be used to pass a memory map to the guest. The
* memory map is optional and so guests that understand version 1
* of the structure must check that memmap_entries is non-zero
* before trying to read the memory map.
*/
#define XEN_HVM_START_MAGIC_VALUE 0x336ec578
/*
* The values used in the type field of the memory map table entries are
* defined below and match the Address Range Types as defined in the "System
* Address Map Interfaces" section of the ACPI Specification. Please refer to
* section 15 in version 6.2 of the ACPI spec: http://uefi.org/specifications
*/
#define XEN_HVM_MEMMAP_TYPE_RAM 1
#define XEN_HVM_MEMMAP_TYPE_RESERVED 2
#define XEN_HVM_MEMMAP_TYPE_ACPI 3
#define XEN_HVM_MEMMAP_TYPE_NVS 4
#define XEN_HVM_MEMMAP_TYPE_UNUSABLE 5
#define XEN_HVM_MEMMAP_TYPE_DISABLED 6
#define XEN_HVM_MEMMAP_TYPE_PMEM 7
/*
* C representation of the x86/HVM start info layout.
*
* The canonical definition of this layout is above, this is just a way to
* represent the layout described there using C types.
*/
struct hvm_start_info {
uint32_t magic; /* Contains the magic value 0x336ec578 */
/* ("xEn3" with the 0x80 bit of the "E" set).*/
uint32_t version; /* Version of this structure. */
uint32_t flags; /* SIF_xxx flags. */
uint32_t nr_modules; /* Number of modules passed to the kernel. */
uint64_t modlist_paddr; /* Physical address of an array of */
/* hvm_modlist_entry. */
uint64_t cmdline_paddr; /* Physical address of the command line. */
uint64_t rsdp_paddr; /* Physical address of the RSDP ACPI data */
/* structure. */
/* All following fields only present in version 1 and newer */
uint64_t memmap_paddr; /* Physical address of an array of */
/* hvm_memmap_table_entry. */
uint32_t memmap_entries; /* Number of entries in the memmap table. */
/* Value will be zero if there is no memory */
/* map being provided. */
uint32_t reserved; /* Must be zero. */
};
struct hvm_modlist_entry {
uint64_t paddr; /* Physical address of the module. */
uint64_t size; /* Size of the module in bytes. */
uint64_t cmdline_paddr; /* Physical address of the command line. */
uint64_t reserved;
};
struct hvm_memmap_table_entry {
uint64_t addr; /* Base address of the memory region */
uint64_t size; /* Size of the memory region in bytes */
uint32_t type; /* Mapping type */
uint32_t reserved; /* Must be zero for Version 1. */
};
#endif /* __XEN_PUBLIC_ARCH_X86_HVM_START_INFO_H__ */