ref: 7f224a8f6d343cf0aaf162cc9b9f7d4d62ac78ac
dir: /sys/src/9/xen/xen-public/hvm/hvm_op.h/
/*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef __XEN_PUBLIC_HVM_HVM_OP_H__
#define __XEN_PUBLIC_HVM_HVM_OP_H__
#include "../xen.h"
#include "../trace.h"
/* Get/set subcommands: extra argument == pointer to 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 */
};
typedef struct xen_hvm_param xen_hvm_param_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_param_t);
/* Set the logical level of one of a domain's PCI INTx wires. */
#define HVMOP_set_pci_intx_level 2
struct xen_hvm_set_pci_intx_level {
/* Domain to be updated. */
domid_t domid;
/* PCI INTx identification in PCI topology (domain:bus:device:intx). */
uint8_t domain, bus, device, intx;
/* Assertion level (0 = unasserted, 1 = asserted). */
uint8_t level;
};
typedef struct xen_hvm_set_pci_intx_level xen_hvm_set_pci_intx_level_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_set_pci_intx_level_t);
/* Set the logical level of one of a domain's ISA IRQ wires. */
#define HVMOP_set_isa_irq_level 3
struct xen_hvm_set_isa_irq_level {
/* Domain to be updated. */
domid_t domid;
/* ISA device identification, by ISA IRQ (0-15). */
uint8_t isa_irq;
/* Assertion level (0 = unasserted, 1 = asserted). */
uint8_t level;
};
typedef struct xen_hvm_set_isa_irq_level xen_hvm_set_isa_irq_level_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_set_isa_irq_level_t);
#define HVMOP_set_pci_link_route 4
struct xen_hvm_set_pci_link_route {
/* Domain to be updated. */
domid_t domid;
/* PCI link identifier (0-3). */
uint8_t link;
/* ISA IRQ (1-15), or 0 (disable link). */
uint8_t isa_irq;
};
typedef struct xen_hvm_set_pci_link_route xen_hvm_set_pci_link_route_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_set_pci_link_route_t);
/* Flushes all VCPU TLBs: @arg must be NULL. */
#define HVMOP_flush_tlbs 5
typedef enum {
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 */
} hvmmem_type_t;
/* Following tools-only interfaces may change in future. */
#if defined(__XEN__) || defined(__XEN_TOOLS__)
/* Track dirty VRAM. */
#define HVMOP_track_dirty_vram 6
struct xen_hvm_track_dirty_vram {
/* Domain to be tracked. */
domid_t domid;
/* First pfn to track. */
uint64_aligned_t first_pfn;
/* Number of pages to track. */
uint64_aligned_t nr;
/* OUT variable. */
/* Dirty bitmap buffer. */
XEN_GUEST_HANDLE_64(uint8) dirty_bitmap;
};
typedef struct xen_hvm_track_dirty_vram xen_hvm_track_dirty_vram_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_track_dirty_vram_t);
/* Notify that some pages got modified by the Device Model. */
#define HVMOP_modified_memory 7
struct xen_hvm_modified_memory {
/* Domain to be updated. */
domid_t domid;
/* First pfn. */
uint64_aligned_t first_pfn;
/* Number of pages. */
uint64_aligned_t nr;
};
typedef struct xen_hvm_modified_memory xen_hvm_modified_memory_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_modified_memory_t);
#define HVMOP_set_mem_type 8
/* Notify that a region of memory is to be treated in a specific way. */
struct xen_hvm_set_mem_type {
/* Domain to be updated. */
domid_t domid;
/* Memory type */
uint16_t hvmmem_type;
/* Number of pages. */
uint32_t nr;
/* First pfn. */
uint64_aligned_t first_pfn;
};
typedef struct xen_hvm_set_mem_type xen_hvm_set_mem_type_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_set_mem_type_t);
#endif /* defined(__XEN__) || defined(__XEN_TOOLS__) */
/* 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;
uint16_t pad[3]; /* align next field on 8-byte boundary */
/* guest physical address of the toplevel pagetable dying */
uint64_t gpa;
};
typedef struct xen_hvm_pagetable_dying xen_hvm_pagetable_dying_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_pagetable_dying_t);
/* Get the current Xen time, in nanoseconds since system boot. */
#define HVMOP_get_time 10
struct xen_hvm_get_time {
uint64_t now; /* OUT */
};
typedef struct xen_hvm_get_time xen_hvm_get_time_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_get_time_t);
#define HVMOP_xentrace 11
struct xen_hvm_xentrace {
uint16_t event, extra_bytes;
uint8_t extra[TRACE_EXTRA_MAX * sizeof(uint32_t)];
};
typedef struct xen_hvm_xentrace xen_hvm_xentrace_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_xentrace_t);
/* Following tools-only interfaces may change in future. */
#if defined(__XEN__) || defined(__XEN_TOOLS__)
#define HVMOP_set_mem_access 12
typedef enum {
HVMMEM_access_n,
HVMMEM_access_r,
HVMMEM_access_w,
HVMMEM_access_rw,
HVMMEM_access_x,
HVMMEM_access_rx,
HVMMEM_access_wx,
HVMMEM_access_rwx,
HVMMEM_access_rx2rw, /* Page starts off as r-x, but automatically
* change to r-w on a write */
HVMMEM_access_n2rwx, /* Log access: starts off as n, automatically
* goes to rwx, generating an event without
* pausing the vcpu */
HVMMEM_access_default /* Take the domain default */
} hvmmem_access_t;
/* Notify that a region of memory is to have specific access types */
struct xen_hvm_set_mem_access {
/* Domain to be updated. */
domid_t domid;
/* Memory type */
uint16_t hvmmem_access; /* hvm_access_t */
/* Number of pages, ignored on setting default access */
uint32_t nr;
/* First pfn, or ~0ull to set the default access for new pages */
uint64_aligned_t first_pfn;
};
typedef struct xen_hvm_set_mem_access xen_hvm_set_mem_access_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_set_mem_access_t);
#define HVMOP_get_mem_access 13
/* Get the specific access type for that region of memory */
struct xen_hvm_get_mem_access {
/* Domain to be queried. */
domid_t domid;
/* Memory type: OUT */
uint16_t hvmmem_access; /* hvm_access_t */
/* pfn, or ~0ull for default access for new pages. IN */
uint64_aligned_t pfn;
};
typedef struct xen_hvm_get_mem_access xen_hvm_get_mem_access_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_get_mem_access_t);
#define HVMOP_inject_trap 14
/* Inject a trap into a VCPU, which will get taken up on the next
* scheduling of it. Note that the caller should know enough of the
* state of the CPU before injecting, to know what the effect of
* injecting the trap will be.
*/
struct xen_hvm_inject_trap {
/* Domain to be queried. */
domid_t domid;
/* VCPU */
uint32_t vcpuid;
/* Vector number */
uint32_t vector;
/* Trap type (HVMOP_TRAP_*) */
uint32_t type;
/* NB. This enumeration precisely matches hvm.h:X86_EVENTTYPE_* */
# define HVMOP_TRAP_ext_int 0 /* external interrupt */
# define HVMOP_TRAP_nmi 2 /* nmi */
# define HVMOP_TRAP_hw_exc 3 /* hardware exception */
# define HVMOP_TRAP_sw_int 4 /* software interrupt (CD nn) */
# define HVMOP_TRAP_pri_sw_exc 5 /* ICEBP (F1) */
# define HVMOP_TRAP_sw_exc 6 /* INT3 (CC), INTO (CE) */
/* Error code, or ~0u to skip */
uint32_t error_code;
/* Intruction length */
uint32_t insn_len;
/* CR2 for page faults */
uint64_aligned_t cr2;
};
typedef struct xen_hvm_inject_trap xen_hvm_inject_trap_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_inject_trap_t);
#endif /* defined(__XEN__) || defined(__XEN_TOOLS__) */
#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;
};
typedef struct xen_hvm_get_mem_type xen_hvm_get_mem_type_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_get_mem_type_t);
/* Following tools-only interfaces may change in future. */
#if defined(__XEN__) || defined(__XEN_TOOLS__)
/* MSI injection for emulated devices */
#define HVMOP_inject_msi 16
struct xen_hvm_inject_msi {
/* Domain to be injected */
domid_t domid;
/* Data -- lower 32 bits */
uint32_t data;
/* Address (0xfeexxxxx) */
uint64_t addr;
};
typedef struct xen_hvm_inject_msi xen_hvm_inject_msi_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_inject_msi_t);
#endif /* defined(__XEN__) || defined(__XEN_TOOLS__) */
#endif /* __XEN_PUBLIC_HVM_HVM_OP_H__ */