--- /dev/null
+/******************************************************************************
+ * hypercall.h
+ *
+ * Linux-specific hypervisor handling.
+ *
+ * Copyright (c) 2002-2004, K A Fraser
+ *
+ * 64-bit updates:
+ * Benjamin Liu <benjamin.liu@intel.com>
+ * Jun Nakajima <jun.nakajima@intel.com>
+ *
+ * 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 __HYPERCALL_H__
+#define __HYPERCALL_H__
+
+#include <linux/string.h> /* memcpy() */
+
+#ifndef __HYPERVISOR_H__
+# error "please don't include this file directly"
+#endif
+
+#define __STR(x) #x
+#define STR(x) __STR(x)
+
+#define _hypercall0(type, name) \
+({ \
+ long __res; \
+ asm volatile ( \
+ "call hypercall_page + ("STR(__HYPERVISOR_##name)" * 32)"\
+ : "=a" (__res) \
+ : \
+ : "memory" ); \
+ (type)__res; \
+})
+
+#define _hypercall1(type, name, a1) \
+({ \
+ long __res, __ign1; \
+ asm volatile ( \
+ "call hypercall_page + ("STR(__HYPERVISOR_##name)" * 32)"\
+ : "=a" (__res), "=D" (__ign1) \
+ : "1" ((long)(a1)) \
+ : "memory" ); \
+ (type)__res; \
+})
+
+#define _hypercall2(type, name, a1, a2) \
+({ \
+ long __res, __ign1, __ign2; \
+ asm volatile ( \
+ "call hypercall_page + ("STR(__HYPERVISOR_##name)" * 32)"\
+ : "=a" (__res), "=D" (__ign1), "=S" (__ign2) \
+ : "1" ((long)(a1)), "2" ((long)(a2)) \
+ : "memory" ); \
+ (type)__res; \
+})
+
+#define _hypercall3(type, name, a1, a2, a3) \
+({ \
+ long __res, __ign1, __ign2, __ign3; \
+ asm volatile ( \
+ "call hypercall_page + ("STR(__HYPERVISOR_##name)" * 32)"\
+ : "=a" (__res), "=D" (__ign1), "=S" (__ign2), \
+ "=d" (__ign3) \
+ : "1" ((long)(a1)), "2" ((long)(a2)), \
+ "3" ((long)(a3)) \
+ : "memory" ); \
+ (type)__res; \
+})
+
+#define _hypercall4(type, name, a1, a2, a3, a4) \
+({ \
+ long __res, __ign1, __ign2, __ign3; \
+ asm volatile ( \
+ "movq %7,%%r10; " \
+ "call hypercall_page + ("STR(__HYPERVISOR_##name)" * 32)"\
+ : "=a" (__res), "=D" (__ign1), "=S" (__ign2), \
+ "=d" (__ign3) \
+ : "1" ((long)(a1)), "2" ((long)(a2)), \
+ "3" ((long)(a3)), "g" ((long)(a4)) \
+ : "memory", "r10" ); \
+ (type)__res; \
+})
+
+#define _hypercall5(type, name, a1, a2, a3, a4, a5) \
+({ \
+ long __res, __ign1, __ign2, __ign3; \
+ asm volatile ( \
+ "movq %7,%%r10; movq %8,%%r8; " \
+ "call hypercall_page + ("STR(__HYPERVISOR_##name)" * 32)"\
+ : "=a" (__res), "=D" (__ign1), "=S" (__ign2), \
+ "=d" (__ign3) \
+ : "1" ((long)(a1)), "2" ((long)(a2)), \
+ "3" ((long)(a3)), "g" ((long)(a4)), \
+ "g" ((long)(a5)) \
+ : "memory", "r10", "r8" ); \
+ (type)__res; \
+})
+
+static inline int
+HYPERVISOR_set_trap_table(
+ trap_info_t *table)
+{
+ return _hypercall1(int, set_trap_table, table);
+}
+
+static inline int
+HYPERVISOR_mmu_update(
+ mmu_update_t *req, int count, int *success_count, domid_t domid)
+{
+ return _hypercall4(int, mmu_update, req, count, success_count, domid);
+}
+
+static inline int
+HYPERVISOR_mmuext_op(
+ struct mmuext_op *op, int count, int *success_count, domid_t domid)
+{
+ return _hypercall4(int, mmuext_op, op, count, success_count, domid);
+}
+
+static inline int
+HYPERVISOR_set_gdt(
+ unsigned long *frame_list, int entries)
+{
+ return _hypercall2(int, set_gdt, frame_list, entries);
+}
+
+static inline int
+HYPERVISOR_stack_switch(
+ unsigned long ss, unsigned long esp)
+{
+ return _hypercall2(int, stack_switch, ss, esp);
+}
+
+static inline int
+HYPERVISOR_set_callbacks(
+ unsigned long event_address, unsigned long failsafe_address,
+ unsigned long syscall_address)
+{
+ return _hypercall3(int, set_callbacks,
+ event_address, failsafe_address, syscall_address);
+}
+
+static inline int
+HYPERVISOR_fpu_taskswitch(
+ int set)
+{
+ return _hypercall1(int, fpu_taskswitch, set);
+}
+
+static inline int
+HYPERVISOR_sched_op_compat(
+ int cmd, unsigned long arg)
+{
+ return _hypercall2(int, sched_op_compat, cmd, arg);
+}
+
+static inline int
+HYPERVISOR_sched_op(
+ int cmd, void *arg)
+{
+ return _hypercall2(int, sched_op, cmd, arg);
+}
+
+static inline long
+HYPERVISOR_set_timer_op(
+ u64 timeout)
+{
+ return _hypercall1(long, set_timer_op, timeout);
+}
+
+static inline int
+HYPERVISOR_dom0_op(
+ dom0_op_t *dom0_op)
+{
+ dom0_op->interface_version = DOM0_INTERFACE_VERSION;
+ return _hypercall1(int, dom0_op, dom0_op);
+}
+
+static inline int
+HYPERVISOR_set_debugreg(
+ int reg, unsigned long value)
+{
+ return _hypercall2(int, set_debugreg, reg, value);
+}
+
+static inline unsigned long
+HYPERVISOR_get_debugreg(
+ int reg)
+{
+ return _hypercall1(unsigned long, get_debugreg, reg);
+}
+
+static inline int
+HYPERVISOR_update_descriptor(
+ unsigned long ma, unsigned long word)
+{
+ return _hypercall2(int, update_descriptor, ma, word);
+}
+
+static inline int
+HYPERVISOR_memory_op(
+ unsigned int cmd, void *arg)
+{
+ return _hypercall2(int, memory_op, cmd, arg);
+}
+
+static inline int
+HYPERVISOR_multicall(
+ void *call_list, int nr_calls)
+{
+ return _hypercall2(int, multicall, call_list, nr_calls);
+}
+
+static inline int
+HYPERVISOR_update_va_mapping(
+ unsigned long va, pte_t new_val, unsigned long flags)
+{
+ return _hypercall3(int, update_va_mapping, va, new_val.pte, flags);
+}
+
+static inline int
+HYPERVISOR_event_channel_op(
+ int cmd, void *arg)
+{
+ int rc = _hypercall2(int, event_channel_op, cmd, arg);
+ if (unlikely(rc == -ENOSYS)) {
+ struct evtchn_op op;
+ op.cmd = cmd;
+ memcpy(&op.u, arg, sizeof(op.u));
+ rc = _hypercall1(int, event_channel_op_compat, &op);
+ memcpy(arg, &op.u, sizeof(op.u));
+ }
+ return rc;
+}
+
+static inline int
+HYPERVISOR_acm_op(
+ int cmd, void *arg)
+{
+ return _hypercall2(int, acm_op, cmd, arg);
+}
+
+static inline int
+HYPERVISOR_xen_version(
+ int cmd, void *arg)
+{
+ return _hypercall2(int, xen_version, cmd, arg);
+}
+
+static inline int
+HYPERVISOR_console_io(
+ int cmd, int count, char *str)
+{
+ return _hypercall3(int, console_io, cmd, count, str);
+}
+
+static inline int
+HYPERVISOR_physdev_op(
+ int cmd, void *arg)
+{
+ int rc = _hypercall2(int, physdev_op, cmd, arg);
+ if (unlikely(rc == -ENOSYS)) {
+ struct physdev_op op;
+ op.cmd = cmd;
+ memcpy(&op.u, arg, sizeof(op.u));
+ rc = _hypercall1(int, physdev_op_compat, &op);
+ memcpy(arg, &op.u, sizeof(op.u));
+ }
+ return rc;
+}
+
+static inline int
+HYPERVISOR_grant_table_op(
+ unsigned int cmd, void *uop, unsigned int count)
+{
+ return _hypercall3(int, grant_table_op, cmd, uop, count);
+}
+
+static inline int
+HYPERVISOR_update_va_mapping_otherdomain(
+ unsigned long va, pte_t new_val, unsigned long flags, domid_t domid)
+{
+ return _hypercall4(int, update_va_mapping_otherdomain, va,
+ new_val.pte, flags, domid);
+}
+
+static inline int
+HYPERVISOR_vm_assist(
+ unsigned int cmd, unsigned int type)
+{
+ return _hypercall2(int, vm_assist, cmd, type);
+}
+
+static inline int
+HYPERVISOR_vcpu_op(
+ int cmd, int vcpuid, void *extra_args)
+{
+ return _hypercall3(int, vcpu_op, cmd, vcpuid, extra_args);
+}
+
+static inline int
+HYPERVISOR_set_segment_base(
+ int reg, unsigned long value)
+{
+ return _hypercall2(int, set_segment_base, reg, value);
+}
+
+static inline int
+HYPERVISOR_suspend(
+ unsigned long srec)
+{
+ struct sched_shutdown sched_shutdown = {
+ .reason = SHUTDOWN_suspend
+ };
+
+ int rc = _hypercall3(int, sched_op, SCHEDOP_shutdown,
+ &sched_shutdown, srec);
+
+ if (rc == -ENOSYS)
+ rc = _hypercall3(int, sched_op_compat, SCHEDOP_shutdown,
+ SHUTDOWN_suspend, srec);
+
+ return rc;
+}
+
+static inline int
+HYPERVISOR_nmi_op(
+ unsigned long op, void *arg)
+{
+ return _hypercall2(int, nmi_op, op, arg);
+}
+
+static inline int
+HYPERVISOR_callback_op(
+ int cmd, void *arg)
+{
+ return _hypercall2(int, callback_op, cmd, arg);
+}
+
+static inline int
+HYPERVISOR_xenoprof_op(
+ int op, void *arg)
+{
+ return _hypercall2(int, xenoprof_op, op, arg);
+}
+
+#endif /* __HYPERCALL_H__ */
git://git.onelab.eu / linux-2.6.git / blobdiff