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Diffstat (limited to 'arch/ia64/include/asm/xen/interface.h')
| -rw-r--r-- | arch/ia64/include/asm/xen/interface.h | 346 |
1 files changed, 346 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/xen/interface.h b/arch/ia64/include/asm/xen/interface.h new file mode 100644 index 000000000000..f00fab40854d --- /dev/null +++ b/arch/ia64/include/asm/xen/interface.h @@ -0,0 +1,346 @@ +/****************************************************************************** + * 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(u64, unsigned long); +DEFINE_GUEST_HANDLE(char); +DEFINE_GUEST_HANDLE(int); +DEFINE_GUEST_HANDLE(long); +DEFINE_GUEST_HANDLE(void); + +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) */ + }; + }; +}; + +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 */ |