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[kvm-ia64-devel] [PATCH 41/50] ia64/xen: introduce xen hypercall routines necessary for domU.
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From: Isaku Y. <yam...@va...> - 2008-03-05 18:19:29
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Signed-off-by: Isaku Yamahata <yam...@va...>
---
arch/ia64/xen/hypercall.S | 7 +
include/asm-ia64/xen/hypercall.h | 426 ++++++++++++++++++++++++++++++++++++++
2 files changed, 433 insertions(+), 0 deletions(-)
create mode 100644 include/asm-ia64/xen/hypercall.h
diff --git a/arch/ia64/xen/hypercall.S b/arch/ia64/xen/hypercall.S
index a96f278..7c5242b 100644
--- a/arch/ia64/xen/hypercall.S
+++ b/arch/ia64/xen/hypercall.S
@@ -122,3 +122,10 @@ GLOBAL_ENTRY(xen_set_eflag)
END(xen_set_eflag)
#endif /* CONFIG_IA32_SUPPORT */
#endif /* ASM_SUPPORTED */
+
+GLOBAL_ENTRY(__hypercall)
+ mov r2=r37
+ break 0x1000
+ br.ret.sptk.many b0
+ ;;
+END(__hypercall)
diff --git a/include/asm-ia64/xen/hypercall.h b/include/asm-ia64/xen/hypercall.h
new file mode 100644
index 0000000..a266e44
--- /dev/null
+++ b/include/asm-ia64/xen/hypercall.h
@@ -0,0 +1,426 @@
+/******************************************************************************
+ * hypercall.h
+ *
+ * Linux-specific hypervisor handling.
+ *
+ * Copyright (c) 2002-2004, K A Fraser
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation; or, when distributed
+ * separately from the Linux kernel or incorporated into other
+ * software packages, subject to the following license:
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this source file (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_HYPERCALL_H
+#define _ASM_IA64_XEN_HYPERCALL_H
+
+#ifndef _ASM_IA64_XEN_HYPERVISOR_H
+# error "please don't include this file directly"
+#endif
+
+#include <asm/xen/xcom_hcall.h>
+struct xencomm_handle;
+extern unsigned long __hypercall(unsigned long a1, unsigned long a2,
+ unsigned long a3, unsigned long a4,
+ unsigned long a5, unsigned long cmd);
+
+/*
+ * Assembler stubs for hyper-calls.
+ */
+
+#define _hypercall0(type, name) \
+({ \
+ long __res; \
+ __res = __hypercall(0, 0, 0, 0, 0, __HYPERVISOR_##name);\
+ (type)__res; \
+})
+
+#define _hypercall1(type, name, a1) \
+({ \
+ long __res; \
+ __res = __hypercall((unsigned long)a1, \
+ 0, 0, 0, 0, __HYPERVISOR_##name); \
+ (type)__res; \
+})
+
+#define _hypercall2(type, name, a1, a2) \
+({ \
+ long __res; \
+ __res = __hypercall((unsigned long)a1, \
+ (unsigned long)a2, \
+ 0, 0, 0, __HYPERVISOR_##name); \
+ (type)__res; \
+})
+
+#define _hypercall3(type, name, a1, a2, a3) \
+({ \
+ long __res; \
+ __res = __hypercall((unsigned long)a1, \
+ (unsigned long)a2, \
+ (unsigned long)a3, \
+ 0, 0, __HYPERVISOR_##name); \
+ (type)__res; \
+})
+
+#define _hypercall4(type, name, a1, a2, a3, a4) \
+({ \
+ long __res; \
+ __res = __hypercall((unsigned long)a1, \
+ (unsigned long)a2, \
+ (unsigned long)a3, \
+ (unsigned long)a4, \
+ 0, __HYPERVISOR_##name); \
+ (type)__res; \
+})
+
+#define _hypercall5(type, name, a1, a2, a3, a4, a5) \
+({ \
+ long __res; \
+ __res = __hypercall((unsigned long)a1, \
+ (unsigned long)a2, \
+ (unsigned long)a3, \
+ (unsigned long)a4, \
+ (unsigned long)a5, \
+ __HYPERVISOR_##name); \
+ (type)__res; \
+})
+
+
+static inline int
+xencomm_arch_hypercall_sched_op(int cmd, struct xencomm_handle *arg)
+{
+ return _hypercall2(int, sched_op, cmd, arg);
+}
+
+static inline long
+HYPERVISOR_set_timer_op(u64 timeout)
+{
+ unsigned long timeout_hi = (unsigned long)(timeout >> 32);
+ unsigned long timeout_lo = (unsigned long)timeout;
+ return _hypercall2(long, set_timer_op, timeout_lo, timeout_hi);
+}
+
+static inline int
+xencomm_arch_hypercall_multicall(struct xencomm_handle *call_list,
+ int nr_calls)
+{
+ return _hypercall2(int, multicall, call_list, nr_calls);
+}
+
+static inline int
+xencomm_arch_hypercall_memory_op(unsigned int cmd, struct xencomm_handle *arg)
+{
+ return _hypercall2(int, memory_op, cmd, arg);
+}
+
+static inline int
+xencomm_arch_hypercall_event_channel_op(int cmd, struct xencomm_handle *arg)
+{
+ return _hypercall2(int, event_channel_op, cmd, arg);
+}
+
+static inline int
+xencomm_arch_hypercall_xen_version(int cmd, struct xencomm_handle *arg)
+{
+ return _hypercall2(int, xen_version, cmd, arg);
+}
+
+static inline int
+xencomm_arch_hypercall_console_io(int cmd, int count,
+ struct xencomm_handle *str)
+{
+ return _hypercall3(int, console_io, cmd, count, str);
+}
+
+static inline int
+xencomm_arch_hypercall_physdev_op(int cmd, struct xencomm_handle *arg)
+{
+ return _hypercall2(int, physdev_op, cmd, arg);
+}
+
+static inline int
+xencomm_arch_hypercall_grant_table_op(unsigned int cmd,
+ struct xencomm_handle *uop,
+ unsigned int count)
+{
+ return _hypercall3(int, grant_table_op, cmd, uop, count);
+}
+
+int HYPERVISOR_grant_table_op(unsigned int cmd, void *uop, unsigned int count);
+
+extern int xencomm_arch_hypercall_suspend(struct xencomm_handle *arg);
+
+static inline int
+xencomm_arch_hypercall_callback_op(int cmd, struct xencomm_handle *arg)
+{
+ return _hypercall2(int, callback_op, cmd, arg);
+}
+
+static inline unsigned long
+xencomm_arch_hypercall_hvm_op(int cmd, void *arg)
+{
+ return _hypercall2(unsigned long, hvm_op, cmd, arg);
+}
+
+static inline long
+xencomm_arch_hypercall_vcpu_op(int cmd, int cpu, void *arg)
+{
+ return _hypercall3(long, vcpu_op, cmd, cpu, arg);
+}
+
+static inline int
+HYPERVISOR_physdev_op(int cmd, void *arg)
+{
+ switch (cmd) {
+ case PHYSDEVOP_eoi:
+ return _hypercall1(int, ia64_fast_eoi,
+ ((struct physdev_eoi *)arg)->irq);
+ default:
+ return xencomm_hypercall_physdev_op(cmd, arg);
+ }
+}
+
+static inline int
+xencomm_arch_hypercall_xenoprof_op(int op, struct xencomm_handle *arg)
+{
+ return _hypercall2(int, xenoprof_op, op, arg);
+}
+
+static inline long
+xencomm_arch_hypercall_opt_feature(struct xencomm_handle *arg)
+{
+ return _hypercall1(long, opt_feature, arg);
+}
+
+#define xen_do_IRQ(irq, regs) \
+do { \
+ struct pt_regs *old_regs; \
+ old_regs = set_irq_regs(regs); \
+ irq_enter(); \
+ __do_IRQ(irq); \
+ irq_exit(); \
+ set_irq_regs(old_regs); \
+} while (0)
+#define irq_ctx_init(cpu) do { } while (0)
+
+#include <linux/err.h>
+#ifdef HAVE_XEN_PLATFORM_COMPAT_H
+#include <xen/platform-compat.h>
+#endif
+
+static inline unsigned long
+__HYPERVISOR_ioremap(unsigned long ioaddr, unsigned long size)
+{
+ return _hypercall3(unsigned long, ia64_dom0vp_op,
+ IA64_DOM0VP_ioremap, ioaddr, size);
+}
+
+static inline unsigned long
+HYPERVISOR_ioremap(unsigned long ioaddr, unsigned long size)
+{
+ unsigned long ret = ioaddr;
+ if (is_running_on_xen()) {
+ ret = __HYPERVISOR_ioremap(ioaddr, size);
+ if (unlikely(ret == -ENOSYS))
+ panic("hypercall %s failed with %ld. "
+ "Please check Xen and Linux config mismatch\n",
+ __func__, -ret);
+ else if (unlikely(IS_ERR_VALUE(ret)))
+ ret = ioaddr;
+ }
+ return ret;
+}
+
+static inline unsigned long
+__HYPERVISOR_phystomach(unsigned long gpfn)
+{
+ return _hypercall2(unsigned long, ia64_dom0vp_op,
+ IA64_DOM0VP_phystomach, gpfn);
+}
+
+static inline unsigned long
+HYPERVISOR_phystomach(unsigned long gpfn)
+{
+ unsigned long ret = gpfn;
+ if (is_running_on_xen())
+ ret = __HYPERVISOR_phystomach(gpfn);
+ return ret;
+}
+
+static inline unsigned long
+__HYPERVISOR_machtophys(unsigned long mfn)
+{
+ return _hypercall2(unsigned long, ia64_dom0vp_op,
+ IA64_DOM0VP_machtophys, mfn);
+}
+
+static inline unsigned long
+HYPERVISOR_machtophys(unsigned long mfn)
+{
+ unsigned long ret = mfn;
+ if (is_running_on_xen())
+ ret = __HYPERVISOR_machtophys(mfn);
+ return ret;
+}
+
+static inline unsigned long
+__HYPERVISOR_zap_physmap(unsigned long gpfn, unsigned int extent_order)
+{
+ return _hypercall3(unsigned long, ia64_dom0vp_op,
+ IA64_DOM0VP_zap_physmap, gpfn, extent_order);
+}
+
+static inline unsigned long
+HYPERVISOR_zap_physmap(unsigned long gpfn, unsigned int extent_order)
+{
+ unsigned long ret = 0;
+ if (is_running_on_xen())
+ ret = __HYPERVISOR_zap_physmap(gpfn, extent_order);
+ return ret;
+}
+
+static inline unsigned long
+__HYPERVISOR_add_physmap(unsigned long gpfn, unsigned long mfn,
+ unsigned long flags, domid_t domid)
+{
+ return _hypercall5(unsigned long, ia64_dom0vp_op,
+ IA64_DOM0VP_add_physmap, gpfn, mfn, flags, domid);
+}
+
+static inline unsigned long
+HYPERVISOR_add_physmap(unsigned long gpfn, unsigned long mfn,
+ unsigned long flags, domid_t domid)
+{
+ unsigned long ret = 0;
+ BUG_ON(!is_running_on_xen());
+ if (is_running_on_xen())
+ ret = __HYPERVISOR_add_physmap(gpfn, mfn, flags, domid);
+ return ret;
+}
+
+static inline unsigned long
+__HYPERVISOR_add_physmap_with_gmfn(unsigned long gpfn, unsigned long gmfn,
+ unsigned long flags, domid_t domid)
+{
+ return _hypercall5(unsigned long, ia64_dom0vp_op,
+ IA64_DOM0VP_add_physmap_with_gmfn,
+ gpfn, gmfn, flags, domid);
+}
+
+static inline unsigned long
+HYPERVISOR_add_physmap_with_gmfn(unsigned long gpfn, unsigned long gmfn,
+ unsigned long flags, domid_t domid)
+{
+ unsigned long ret = 0;
+ BUG_ON(!is_running_on_xen());
+ if (is_running_on_xen())
+ ret = __HYPERVISOR_add_physmap_with_gmfn(gpfn, gmfn,
+ flags, domid);
+ return ret;
+}
+
+#ifdef CONFIG_XEN_IA64_EXPOSE_P2M
+static inline unsigned long
+HYPERVISOR_expose_p2m(unsigned long conv_start_gpfn,
+ unsigned long assign_start_gpfn,
+ unsigned long expose_size, unsigned long granule_pfn)
+{
+ return _hypercall5(unsigned long, ia64_dom0vp_op,
+ IA64_DOM0VP_expose_p2m, conv_start_gpfn,
+ assign_start_gpfn, expose_size, granule_pfn);
+}
+
+static inline int
+xencomm_arch_expose_foreign_p2m(unsigned long gpfn,
+ domid_t domid, struct xencomm_handle *arg,
+ unsigned long flags)
+{
+ return _hypercall5(int, ia64_dom0vp_op,
+ IA64_DOM0VP_expose_foreign_p2m,
+ gpfn, domid, arg, flags);
+}
+
+static inline int
+HYPERVISOR_unexpose_foreign_p2m(unsigned long gpfn, domid_t domid)
+{
+ return _hypercall3(int, ia64_dom0vp_op,
+ IA64_DOM0VP_unexpose_foreign_p2m, gpfn, domid);
+}
+#endif
+
+static inline int
+xencomm_arch_hypercall_perfmon_op(unsigned long cmd,
+ struct xencomm_handle *arg,
+ unsigned long count)
+{
+ return _hypercall4(int, ia64_dom0vp_op,
+ IA64_DOM0VP_perfmon, cmd, arg, count);
+}
+
+static inline int
+xencomm_arch_hypercall_fpswa_revision(struct xencomm_handle *arg)
+{
+ return _hypercall2(int, ia64_dom0vp_op,
+ IA64_DOM0VP_fpswa_revision, arg);
+}
+
+static inline int
+xencomm_arch_hypercall_ia64_debug_op(unsigned long cmd,
+ unsigned long domain,
+ struct xencomm_handle *arg)
+{
+ return _hypercall3(int, ia64_debug_op, cmd, domain, arg);
+}
+
+static inline int
+HYPERVISOR_add_io_space(unsigned long phys_base,
+ unsigned long sparse,
+ unsigned long space_number)
+{
+ return _hypercall4(int, ia64_dom0vp_op, IA64_DOM0VP_add_io_space,
+ phys_base, sparse, space_number);
+}
+
+/* for balloon driver */
+#define HYPERVISOR_update_va_mapping(va, new_val, flags) (0)
+
+/* Use xencomm to do hypercalls. */
+#define HYPERVISOR_sched_op xencomm_hypercall_sched_op
+#define HYPERVISOR_event_channel_op xencomm_hypercall_event_channel_op
+#define HYPERVISOR_callback_op xencomm_hypercall_callback_op
+#define HYPERVISOR_multicall xencomm_hypercall_multicall
+#define HYPERVISOR_xen_version xencomm_hypercall_xen_version
+#define HYPERVISOR_console_io xencomm_hypercall_console_io
+#define HYPERVISOR_hvm_op xencomm_hypercall_hvm_op
+#define HYPERVISOR_memory_op xencomm_hypercall_memory_op
+#define HYPERVISOR_xenoprof_op xencomm_hypercall_xenoprof_op
+#define HYPERVISOR_perfmon_op xencomm_hypercall_perfmon_op
+#define HYPERVISOR_fpswa_revision xencomm_hypercall_fpswa_revision
+#define HYPERVISOR_suspend xencomm_hypercall_suspend
+#define HYPERVISOR_vcpu_op xencomm_hypercall_vcpu_op
+#define HYPERVISOR_opt_feature xencomm_hypercall_opt_feature
+#define HYPERVISOR_kexec_op xencomm_hypercall_kexec_op
+
+/* to compile gnttab_copy_grant_page() in drivers/xen/core/gnttab.c */
+#define HYPERVISOR_mmu_update(req, count, success_count, domid) ({ BUG(); 0; })
+
+#endif /* _ASM_IA64_XEN_HYPERCALL_H */
--
1.5.3
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