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xen-ia64-devel

[Xen-ia64-devel] [PATCH 03/23] ia64/xen: introduce definitions necessary

import include/asm-ia64/xen/interface.h to introduce introduce
definitions necessary for ia64/xen hypercalls.
They are basic structures to communicate with xen hypervisor.

Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
---
 include/asm-ia64/xen/interface.h |  320 ++++++++++++++++++++++++++++++++++++++
 1 files changed, 320 insertions(+), 0 deletions(-)
 create mode 100644 include/asm-ia64/xen/interface.h

diff --git a/include/asm-ia64/xen/interface.h b/include/asm-ia64/xen/interface.h
new file mode 100644
index 0000000..c0770a4
--- /dev/null
+++ b/include/asm-ia64/xen/interface.h
@@ -0,0 +1,320 @@
+/******************************************************************************
+ * 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.
+ *
+ */
+
+#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;
+};
+
+#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 */
+
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
-- 
1.5.3


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