[Xen-ia64-devel] [PATCH 05/30] ia64/xen: introduce definitions necessary for ia64/xen hypercalls.

[Isaku Yamahata <yamahata@xxxxxxxxxxxxx>]

import arch/ia64/include/asm/xen/interface.h to introduce
definitions necessary for ia64/xen hypercalls.
They are basic structures to communicate with xen hypervisor and
will be used later.

Cc: Robin Holt <holt@xxxxxxx>
Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
Cc: "Luck, Tony" <tony.luck@xxxxxxxxx>
---
 arch/ia64/include/asm/xen/interface.h |  346 +++++++++++++++++++++++++++++++++
 1 files changed, 346 insertions(+), 0 deletions(-)
 create mode 100644 arch/ia64/include/asm/xen/interface.h

diff --git a/arch/ia64/include/asm/xen/interface.h 
b/arch/ia64/include/asm/xen/interface.h
new file mode 100644
index 0000000..f00fab4
--- /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@xxxxxxxxx>
+ * Eddie Dong <eddie.dong@xxxxxxxxx>
+ * Fred Yang <fred.yang@xxxxxxxxx>
+ * Kevin Tian <kevin.tian@xxxxxxxxx>
+ * Alex Williamson <alex.williamson@xxxxxx>
+ * Chris Wright <chrisw@xxxxxxxxxxxx>
+ * Christian Limpach <Christian.Limpach@xxxxxxxxxxxx>
+ * Dietmar Hahn <dietmar.hahn@xxxxxxxxxxxxxxxxxxx>
+ * Hollis Blanchard <hollisb@xxxxxxxxxx>
+ * Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
+ * Jan Beulich <jbeulich@xxxxxxxxxx>
+ * John Levon <john.levon@xxxxxxx>
+ * Kazuhiro Suzuki <kaz@xxxxxxxxxxxxxx>
+ * Keir Fraser <keir.fraser@xxxxxxxxxx>
+ * Kouya Shimura <kouya@xxxxxxxxxxxxxx>
+ * Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>
+ * Matt Chapman <matthewc@xxxxxx>
+ * Matthew Chapman <matthewc@xxxxxx>
+ * Samuel Thibault <samuel.thibault@xxxxxxxxxxxxx>
+ * Tomonari Horikoshi <t.horikoshi@xxxxxxxxxxxxxx>
+ * Tristan Gingold <tgingold@xxxxxxx>
+ * Tsunehisa Doi <Doi.Tsunehisa@xxxxxxxxxxxxxx>
+ * Yutaka Ezaki <yutaka.ezaki@xxxxxxxxxxxxxx>
+ * Zhang Xin <xing.z.zhang@xxxxxxxxx>
+ * Zhang xiantao <xiantao.zhang@xxxxxxxxx>
+ * dan.magenheimer@xxxxxx
+ * ian.pratt@xxxxxxxxxxxx
+ * michael.fetterman@xxxxxxxxxxxx
+ */
+
+#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 */
-- 
1.6.0.rc0.42.g186458


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