/******************************************************************************
* arch-ia64/hypervisor-if.h
*
* Guest OS interface to IA64 Xen.
*
* 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.
*
* Copyright by those who contributed. (in alphabetical order)
*
* Anthony Xu <anthony.xu@intel.com>
* Eddie Dong <eddie.dong@intel.com>
* Fred Yang <fred.yang@intel.com>
* Kevin Tian <kevin.tian@intel.com>
* Alex Williamson <alex.williamson@hp.com>
* Chris Wright <chrisw@sous-sol.org>
* Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
* Dietmar Hahn <dietmar.hahn@fujitsu-siemens.com>
* Hollis Blanchard <hollisb@us.ibm.com>
* Isaku Yamahata <yamahata@valinux.co.jp>
* Jan Beulich <jbeulich@novell.com>
* John Levon <john.levon@sun.com>
* Kazuhiro Suzuki <kaz@jp.fujitsu.com>
* Keir Fraser <keir.fraser@citrix.com>
* Kouya Shimura <kouya@jp.fujitsu.com>
* Masaki Kanno <kanno.masaki@jp.fujitsu.com>
* Matt Chapman <matthewc@hp.com>
* Matthew Chapman <matthewc@hp.com>
* Samuel Thibault <samuel.thibault@eu.citrix.com>
* Tomonari Horikoshi <t.horikoshi@jp.fujitsu.com>
* Tristan Gingold <tgingold@free.fr>
* Tsunehisa Doi <Doi.Tsunehisa@jp.fujitsu.com>
* Yutaka Ezaki <yutaka.ezaki@jp.fujitsu.com>
* Zhang Xin <xing.z.zhang@intel.com>
* Zhang xiantao <xiantao.zhang@intel.com>
* dan.magenheimer@hp.com
* ian.pratt@cl.cam.ac.uk
* michael.fetterman@cl.cam.ac.uk
*/
#ifndef _ASM_IA64_XEN_INTERFACE_H
#define _ASM_IA64_XEN_INTERFACE_H
#define __DEFINE_GUEST_HANDLE(name, type) \
typedef struct { type *p; } __guest_handle_ ## name
#define DEFINE_GUEST_HANDLE_STRUCT(name) \
__DEFINE_GUEST_HANDLE(name, struct name)
#define DEFINE_GUEST_HANDLE(name) __DEFINE_GUEST_HANDLE(name, name)
#define GUEST_HANDLE(name) __guest_handle_ ## name
#define GUEST_HANDLE_64(name) GUEST_HANDLE(name)
#define set_xen_guest_handle(hnd, val) do { (hnd).p = val; } while (0)
#ifndef __ASSEMBLY__
/* Guest handles for primitive C types. */
__DEFINE_GUEST_HANDLE(uchar, unsigned char);
__DEFINE_GUEST_HANDLE(uint, unsigned int);
__DEFINE_GUEST_HANDLE(ulong, unsigned long);
DEFINE_GUEST_HANDLE(char);
DEFINE_GUEST_HANDLE(int);
DEFINE_GUEST_HANDLE(long);
DEFINE_GUEST_HANDLE(void);
DEFINE_GUEST_HANDLE(uint64_t);
DEFINE_GUEST_HANDLE(uint32_t);
typedef unsigned long xen_pfn_t;
DEFINE_GUEST_HANDLE(xen_pfn_t);
#define PRI_xen_pfn "lx"
#endif
/* Arch specific VIRQs definition */
#define VIRQ_ITC VIRQ_ARCH_0 /* V. Virtual itc timer */
#define VIRQ_MCA_CMC VIRQ_ARCH_1 /* MCA cmc interrupt */
#define VIRQ_MCA_CPE VIRQ_ARCH_2 /* MCA cpe interrupt */
/* Maximum number of virtual CPUs in multi-processor guests. */
/* keep sizeof(struct shared_page) <= PAGE_SIZE.
* this is checked in arch/ia64/xen/hypervisor.c. */
#define MAX_VIRT_CPUS 64
#ifndef __ASSEMBLY__
#define INVALID_MFN (~0UL)
union vac {
unsigned long value;
struct {
int a_int:1;
int a_from_int_cr:1;
int a_to_int_cr:1;
int a_from_psr:1;
int a_from_cpuid:1;
int a_cover:1;
int a_bsw:1;
long reserved:57;
};
};
union vdc {
unsigned long value;
struct {
int d_vmsw:1;
int d_extint:1;
int d_ibr_dbr:1;
int d_pmc:1;
int d_to_pmd:1;
int d_itm:1;
long reserved:58;
};
};
struct mapped_regs {
union vac vac;
union vdc vdc;
unsigned long virt_env_vaddr;
unsigned long reserved1[29];
unsigned long vhpi;
unsigned long reserved2[95];
union {
unsigned long vgr[16];
unsigned long bank1_regs[16]; /* bank1 regs (r16-r31)
when bank0 active */
};
union {
unsigned long vbgr[16];
unsigned long bank0_regs[16]; /* bank0 regs (r16-r31)
when bank1 active */
};
unsigned long vnat;
unsigned long vbnat;
unsigned long vcpuid[5];
unsigned long reserved3[11];
unsigned long vpsr;
unsigned long vpr;
unsigned long reserved4[76];
union {
unsigned long vcr[128];
struct {
unsigned long dcr; /* CR0 */
unsigned long itm;
unsigned long iva;
unsigned long rsv1[5];
unsigned long pta; /* CR8 */
unsigned long rsv2[7];
unsigned long ipsr; /* CR16 */
unsigned long isr;
unsigned long rsv3;
unsigned long iip;
unsigned long ifa;
unsigned long itir;
unsigned long iipa;
unsigned long ifs;
unsigned long iim; /* CR24 */
unsigned long iha;
unsigned long rsv4[38];
unsigned long lid; /* CR64 */
unsigned long ivr;
unsigned long tpr;
unsigned long eoi;
unsigned long irr[4];
unsigned long itv; /* CR72 */
unsigned long pmv;
unsigned long cmcv;
unsigned long rsv5[5];
unsigned long lrr0; /* CR80 */
unsigned long lrr1;
unsigned long rsv6[46];
};
};
union {
unsigned long reserved5[128];
struct {
unsigned long precover_ifs;
unsigned long unat; /* not sure if this is needed
until NaT arch is done */
int interrupt_collection_enabled; /* virtual psr.ic */
/* virtual interrupt deliverable flag is
* evtchn_upcall_mask in shared info area now.
* interrupt_mask_addr is the address
* of evtchn_upcall_mask for current vcpu
*/
unsigned char *interrupt_mask_addr;
int pending_interruption;
unsigned char vpsr_pp;
unsigned char vpsr_dfh;
unsigned char hpsr_dfh;
unsigned char hpsr_mfh;
unsigned long reserved5_1[4];
int metaphysical_mode; /* 1 = use metaphys mapping
0 = use virtual */
int banknum; /* 0 or 1, which virtual
register bank is active */
unsigned long rrs[8]; /* region registers */
unsigned long krs[8]; /* kernel registers */
unsigned long tmp[16]; /* temp registers
(e.g. for hyperprivops) */
/* itc paravirtualization
* vAR.ITC = mAR.ITC + itc_offset
* itc_last is one which was lastly passed to
* the guest OS in order to prevent it from
* going backwords.
*/
unsigned long itc_offset;
unsigned long itc_last;
};
};
};
struct arch_vcpu_info {
/* nothing */
};
/*
* This structure is used for magic page in domain pseudo physical address
* space and the result of XENMEM_machine_memory_map.
* As the XENMEM_machine_memory_map result,
* xen_memory_map::nr_entries indicates the size in bytes
* including struct xen_ia64_memmap_info. Not the number of entries.
*/
struct xen_ia64_memmap_info {
uint64_t efi_memmap_size; /* size of EFI memory map */
uint64_t efi_memdesc_size; /* size of an EFI memory map
* descriptor */
uint32_t efi_memdesc_version; /* memory descriptor version */
void *memdesc[0]; /* array of efi_memory_desc_t */
};
struct arch_shared_info {
/* PFN of the start_info page. */
unsigned long start_info_pfn;
/* Interrupt vector for event channel. */
int evtchn_vector;
/* PFN of memmap_info page */
unsigned int memmap_info_num_pages; /* currently only = 1 case is
supported. */
unsigned long memmap_info_pfn;
uint64_t pad[31];
};
struct xen_callback {
unsigned long ip;
};
typedef struct xen_callback xen_callback_t;
#endif /* !__ASSEMBLY__ */
/* Size of the shared_info area (this is not related to page size). */
#define XSI_SHIFT 14
#define XSI_SIZE (1 << XSI_SHIFT)
/* Log size of mapped_regs area (64 KB - only 4KB is used). */
#define XMAPPEDREGS_SHIFT 12
#define XMAPPEDREGS_SIZE (1 << XMAPPEDREGS_SHIFT)
/* Offset of XASI (Xen arch shared info) wrt XSI_BASE. */
#define XMAPPEDREGS_OFS XSI_SIZE
/* Hyperprivops. */
#define HYPERPRIVOP_START 0x1
#define HYPERPRIVOP_RFI (HYPERPRIVOP_START + 0x0)
#define HYPERPRIVOP_RSM_DT (HYPERPRIVOP_START + 0x1)
#define HYPERPRIVOP_SSM_DT (HYPERPRIVOP_START + 0x2)
#define HYPERPRIVOP_COVER (HYPERPRIVOP_START + 0x3)
#define HYPERPRIVOP_ITC_D (HYPERPRIVOP_START + 0x4)
#define HYPERPRIVOP_ITC_I (HYPERPRIVOP_START + 0x5)
#define HYPERPRIVOP_SSM_I (HYPERPRIVOP_START + 0x6)
#define HYPERPRIVOP_GET_IVR (HYPERPRIVOP_START + 0x7)
#define HYPERPRIVOP_GET_TPR (HYPERPRIVOP_START + 0x8)
#define HYPERPRIVOP_SET_TPR (HYPERPRIVOP_START + 0x9)
#define HYPERPRIVOP_EOI (HYPERPRIVOP_START + 0xa)
#define HYPERPRIVOP_SET_ITM (HYPERPRIVOP_START + 0xb)
#define HYPERPRIVOP_THASH (HYPERPRIVOP_START + 0xc)
#define HYPERPRIVOP_PTC_GA (HYPERPRIVOP_START + 0xd)
#define HYPERPRIVOP_ITR_D (HYPERPRIVOP_START + 0xe)
#define HYPERPRIVOP_GET_RR (HYPERPRIVOP_START + 0xf)
#define HYPERPRIVOP_SET_RR (HYPERPRIVOP_START + 0x10)
#define HYPERPRIVOP_SET_KR (HYPERPRIVOP_START + 0x11)
#define HYPERPRIVOP_FC (HYPERPRIVOP_START + 0x12)
#define HYPERPRIVOP_GET_CPUID (HYPERPRIVOP_START + 0x13)
#define HYPERPRIVOP_GET_PMD (HYPERPRIVOP_START + 0x14)
#define HYPERPRIVOP_GET_EFLAG (HYPERPRIVOP_START + 0x15)
#define HYPERPRIVOP_SET_EFLAG (HYPERPRIVOP_START + 0x16)
#define HYPERPRIVOP_RSM_BE (HYPERPRIVOP_START + 0x17)
#define HYPERPRIVOP_GET_PSR (HYPERPRIVOP_START + 0x18)
#define HYPERPRIVOP_SET_RR0_TO_RR4 (HYPERPRIVOP_START + 0x19)
#define HYPERPRIVOP_MAX (0x1a)
/* Fast and light hypercalls. */
#define __HYPERVISOR_ia64_fast_eoi __HYPERVISOR_arch_1
/* Xencomm macros. */
#define XENCOMM_INLINE_MASK 0xf800000000000000UL
#define XENCOMM_INLINE_FLAG 0x8000000000000000UL
#ifndef __ASSEMBLY__
/*
* Optimization features.
* The hypervisor may do some special optimizations for guests. This hypercall
* can be used to switch on/of these special optimizations.
*/
#define __HYPERVISOR_opt_feature 0x700UL
#define XEN_IA64_OPTF_OFF 0x0
#define XEN_IA64_OPTF_ON 0x1
/*
* If this feature is switched on, the hypervisor inserts the
* tlb entries without calling the guests traphandler.
* This is useful in guests using region 7 for identity mapping
* like the linux kernel does.
*/
#define XEN_IA64_OPTF_IDENT_MAP_REG7 1
/* Identity mapping of region 4 addresses in HVM. */
#define XEN_IA64_OPTF_IDENT_MAP_REG4 2
/* Identity mapping of region 5 addresses in HVM. */
#define XEN_IA64_OPTF_IDENT_MAP_REG5 3
#define XEN_IA64_OPTF_IDENT_MAP_NOT_SET (0)
struct xen_ia64_opt_feature {
unsigned long cmd; /* Which feature */
unsigned char on; /* Switch feature on/off */
union {
struct {
/* The page protection bit mask of the pte.
* This will be or'ed with the pte. */
unsigned long pgprot;
unsigned long key; /* A protection key for itir.*/
};
};
};
#endif /* __ASSEMBLY__ */
#endif /* _ASM_IA64_XEN_INTERFACE_H */
