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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /arch/x86/include/asm/xen/hypercall.h
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ...
Diffstat (limited to 'arch/x86/include/asm/xen/hypercall.h')
-rw-r--r--arch/x86/include/asm/xen/hypercall.h504
1 files changed, 504 insertions, 0 deletions
diff --git a/arch/x86/include/asm/xen/hypercall.h b/arch/x86/include/asm/xen/hypercall.h
new file mode 100644
index 000000000..a2dd24947
--- /dev/null
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -0,0 +1,504 @@
+/******************************************************************************
+ * 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_X86_XEN_HYPERCALL_H
+#define _ASM_X86_XEN_HYPERCALL_H
+
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/pgtable.h>
+
+#include <trace/events/xen.h>
+
+#include <asm/page.h>
+#include <asm/smap.h>
+#include <asm/nospec-branch.h>
+
+#include <xen/interface/xen.h>
+#include <xen/interface/sched.h>
+#include <xen/interface/physdev.h>
+#include <xen/interface/platform.h>
+#include <xen/interface/xen-mca.h>
+
+struct xen_dm_op_buf;
+
+/*
+ * The hypercall asms have to meet several constraints:
+ * - Work on 32- and 64-bit.
+ * The two architectures put their arguments in different sets of
+ * registers.
+ *
+ * - Work around asm syntax quirks
+ * It isn't possible to specify one of the rNN registers in a
+ * constraint, so we use explicit register variables to get the
+ * args into the right place.
+ *
+ * - Mark all registers as potentially clobbered
+ * Even unused parameters can be clobbered by the hypervisor, so we
+ * need to make sure gcc knows it.
+ *
+ * - Avoid compiler bugs.
+ * This is the tricky part. Because x86_32 has such a constrained
+ * register set, gcc versions below 4.3 have trouble generating
+ * code when all the arg registers and memory are trashed by the
+ * asm. There are syntactically simpler ways of achieving the
+ * semantics below, but they cause the compiler to crash.
+ *
+ * The only combination I found which works is:
+ * - assign the __argX variables first
+ * - list all actually used parameters as "+r" (__argX)
+ * - clobber the rest
+ *
+ * The result certainly isn't pretty, and it really shows up cpp's
+ * weakness as a macro language. Sorry. (But let's just give thanks
+ * there aren't more than 5 arguments...)
+ */
+
+extern struct { char _entry[32]; } hypercall_page[];
+
+#define __HYPERCALL "call hypercall_page+%c[offset]"
+#define __HYPERCALL_ENTRY(x) \
+ [offset] "i" (__HYPERVISOR_##x * sizeof(hypercall_page[0]))
+
+#ifdef CONFIG_X86_32
+#define __HYPERCALL_RETREG "eax"
+#define __HYPERCALL_ARG1REG "ebx"
+#define __HYPERCALL_ARG2REG "ecx"
+#define __HYPERCALL_ARG3REG "edx"
+#define __HYPERCALL_ARG4REG "esi"
+#define __HYPERCALL_ARG5REG "edi"
+#else
+#define __HYPERCALL_RETREG "rax"
+#define __HYPERCALL_ARG1REG "rdi"
+#define __HYPERCALL_ARG2REG "rsi"
+#define __HYPERCALL_ARG3REG "rdx"
+#define __HYPERCALL_ARG4REG "r10"
+#define __HYPERCALL_ARG5REG "r8"
+#endif
+
+#define __HYPERCALL_DECLS \
+ register unsigned long __res asm(__HYPERCALL_RETREG); \
+ register unsigned long __arg1 asm(__HYPERCALL_ARG1REG) = __arg1; \
+ register unsigned long __arg2 asm(__HYPERCALL_ARG2REG) = __arg2; \
+ register unsigned long __arg3 asm(__HYPERCALL_ARG3REG) = __arg3; \
+ register unsigned long __arg4 asm(__HYPERCALL_ARG4REG) = __arg4; \
+ register unsigned long __arg5 asm(__HYPERCALL_ARG5REG) = __arg5;
+
+#define __HYPERCALL_0PARAM "=r" (__res), ASM_CALL_CONSTRAINT
+#define __HYPERCALL_1PARAM __HYPERCALL_0PARAM, "+r" (__arg1)
+#define __HYPERCALL_2PARAM __HYPERCALL_1PARAM, "+r" (__arg2)
+#define __HYPERCALL_3PARAM __HYPERCALL_2PARAM, "+r" (__arg3)
+#define __HYPERCALL_4PARAM __HYPERCALL_3PARAM, "+r" (__arg4)
+#define __HYPERCALL_5PARAM __HYPERCALL_4PARAM, "+r" (__arg5)
+
+#define __HYPERCALL_0ARG()
+#define __HYPERCALL_1ARG(a1) \
+ __HYPERCALL_0ARG() __arg1 = (unsigned long)(a1);
+#define __HYPERCALL_2ARG(a1,a2) \
+ __HYPERCALL_1ARG(a1) __arg2 = (unsigned long)(a2);
+#define __HYPERCALL_3ARG(a1,a2,a3) \
+ __HYPERCALL_2ARG(a1,a2) __arg3 = (unsigned long)(a3);
+#define __HYPERCALL_4ARG(a1,a2,a3,a4) \
+ __HYPERCALL_3ARG(a1,a2,a3) __arg4 = (unsigned long)(a4);
+#define __HYPERCALL_5ARG(a1,a2,a3,a4,a5) \
+ __HYPERCALL_4ARG(a1,a2,a3,a4) __arg5 = (unsigned long)(a5);
+
+#define __HYPERCALL_CLOBBER5 "memory"
+#define __HYPERCALL_CLOBBER4 __HYPERCALL_CLOBBER5, __HYPERCALL_ARG5REG
+#define __HYPERCALL_CLOBBER3 __HYPERCALL_CLOBBER4, __HYPERCALL_ARG4REG
+#define __HYPERCALL_CLOBBER2 __HYPERCALL_CLOBBER3, __HYPERCALL_ARG3REG
+#define __HYPERCALL_CLOBBER1 __HYPERCALL_CLOBBER2, __HYPERCALL_ARG2REG
+#define __HYPERCALL_CLOBBER0 __HYPERCALL_CLOBBER1, __HYPERCALL_ARG1REG
+
+#define _hypercall0(type, name) \
+({ \
+ __HYPERCALL_DECLS; \
+ __HYPERCALL_0ARG(); \
+ asm volatile (__HYPERCALL \
+ : __HYPERCALL_0PARAM \
+ : __HYPERCALL_ENTRY(name) \
+ : __HYPERCALL_CLOBBER0); \
+ (type)__res; \
+})
+
+#define _hypercall1(type, name, a1) \
+({ \
+ __HYPERCALL_DECLS; \
+ __HYPERCALL_1ARG(a1); \
+ asm volatile (__HYPERCALL \
+ : __HYPERCALL_1PARAM \
+ : __HYPERCALL_ENTRY(name) \
+ : __HYPERCALL_CLOBBER1); \
+ (type)__res; \
+})
+
+#define _hypercall2(type, name, a1, a2) \
+({ \
+ __HYPERCALL_DECLS; \
+ __HYPERCALL_2ARG(a1, a2); \
+ asm volatile (__HYPERCALL \
+ : __HYPERCALL_2PARAM \
+ : __HYPERCALL_ENTRY(name) \
+ : __HYPERCALL_CLOBBER2); \
+ (type)__res; \
+})
+
+#define _hypercall3(type, name, a1, a2, a3) \
+({ \
+ __HYPERCALL_DECLS; \
+ __HYPERCALL_3ARG(a1, a2, a3); \
+ asm volatile (__HYPERCALL \
+ : __HYPERCALL_3PARAM \
+ : __HYPERCALL_ENTRY(name) \
+ : __HYPERCALL_CLOBBER3); \
+ (type)__res; \
+})
+
+#define _hypercall4(type, name, a1, a2, a3, a4) \
+({ \
+ __HYPERCALL_DECLS; \
+ __HYPERCALL_4ARG(a1, a2, a3, a4); \
+ asm volatile (__HYPERCALL \
+ : __HYPERCALL_4PARAM \
+ : __HYPERCALL_ENTRY(name) \
+ : __HYPERCALL_CLOBBER4); \
+ (type)__res; \
+})
+
+static inline long
+xen_single_call(unsigned int call,
+ unsigned long a1, unsigned long a2,
+ unsigned long a3, unsigned long a4,
+ unsigned long a5)
+{
+ __HYPERCALL_DECLS;
+ __HYPERCALL_5ARG(a1, a2, a3, a4, a5);
+
+ if (call >= PAGE_SIZE / sizeof(hypercall_page[0]))
+ return -EINVAL;
+
+ asm volatile(CALL_NOSPEC
+ : __HYPERCALL_5PARAM
+ : [thunk_target] "a" (&hypercall_page[call])
+ : __HYPERCALL_CLOBBER5);
+
+ return (long)__res;
+}
+
+static __always_inline void __xen_stac(void)
+{
+ /*
+ * Suppress objtool seeing the STAC/CLAC and getting confused about it
+ * calling random code with AC=1.
+ */
+ asm volatile(ANNOTATE_IGNORE_ALTERNATIVE
+ ASM_STAC ::: "memory", "flags");
+}
+
+static __always_inline void __xen_clac(void)
+{
+ asm volatile(ANNOTATE_IGNORE_ALTERNATIVE
+ ASM_CLAC ::: "memory", "flags");
+}
+
+static inline long
+privcmd_call(unsigned int call,
+ unsigned long a1, unsigned long a2,
+ unsigned long a3, unsigned long a4,
+ unsigned long a5)
+{
+ long res;
+
+ __xen_stac();
+ res = xen_single_call(call, a1, a2, a3, a4, a5);
+ __xen_clac();
+
+ return res;
+}
+
+#ifdef CONFIG_XEN_PV
+static inline int
+HYPERVISOR_set_trap_table(struct trap_info *table)
+{
+ return _hypercall1(int, set_trap_table, table);
+}
+
+static inline int
+HYPERVISOR_mmu_update(struct mmu_update *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_callback_op(int cmd, void *arg)
+{
+ return _hypercall2(int, callback_op, cmd, arg);
+}
+
+static __always_inline int
+HYPERVISOR_set_debugreg(int reg, unsigned long value)
+{
+ return _hypercall2(int, set_debugreg, reg, value);
+}
+
+static __always_inline unsigned long
+HYPERVISOR_get_debugreg(int reg)
+{
+ return _hypercall1(unsigned long, get_debugreg, reg);
+}
+
+static inline int
+HYPERVISOR_update_descriptor(u64 ma, u64 desc)
+{
+ return _hypercall2(int, update_descriptor, ma, desc);
+}
+
+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_set_segment_base(int reg, unsigned long value)
+{
+ return _hypercall2(int, set_segment_base, reg, value);
+}
+
+static inline void
+MULTI_fpu_taskswitch(struct multicall_entry *mcl, int set)
+{
+ mcl->op = __HYPERVISOR_fpu_taskswitch;
+ mcl->args[0] = set;
+
+ trace_xen_mc_entry(mcl, 1);
+}
+
+static inline void
+MULTI_update_va_mapping(struct multicall_entry *mcl, unsigned long va,
+ pte_t new_val, unsigned long flags)
+{
+ mcl->op = __HYPERVISOR_update_va_mapping;
+ mcl->args[0] = va;
+ mcl->args[1] = new_val.pte;
+ mcl->args[2] = flags;
+
+ trace_xen_mc_entry(mcl, 3);
+}
+
+static inline void
+MULTI_update_descriptor(struct multicall_entry *mcl, u64 maddr,
+ struct desc_struct desc)
+{
+ mcl->op = __HYPERVISOR_update_descriptor;
+ mcl->args[0] = maddr;
+ mcl->args[1] = *(unsigned long *)&desc;
+
+ trace_xen_mc_entry(mcl, 2);
+}
+
+static inline void
+MULTI_mmu_update(struct multicall_entry *mcl, struct mmu_update *req,
+ int count, int *success_count, domid_t domid)
+{
+ mcl->op = __HYPERVISOR_mmu_update;
+ mcl->args[0] = (unsigned long)req;
+ mcl->args[1] = count;
+ mcl->args[2] = (unsigned long)success_count;
+ mcl->args[3] = domid;
+
+ trace_xen_mc_entry(mcl, 4);
+}
+
+static inline void
+MULTI_mmuext_op(struct multicall_entry *mcl, struct mmuext_op *op, int count,
+ int *success_count, domid_t domid)
+{
+ mcl->op = __HYPERVISOR_mmuext_op;
+ mcl->args[0] = (unsigned long)op;
+ mcl->args[1] = count;
+ mcl->args[2] = (unsigned long)success_count;
+ mcl->args[3] = domid;
+
+ trace_xen_mc_entry(mcl, 4);
+}
+
+static inline void
+MULTI_stack_switch(struct multicall_entry *mcl,
+ unsigned long ss, unsigned long esp)
+{
+ mcl->op = __HYPERVISOR_stack_switch;
+ mcl->args[0] = ss;
+ mcl->args[1] = esp;
+
+ trace_xen_mc_entry(mcl, 2);
+}
+#endif
+
+static __always_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)
+{
+ 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
+HYPERVISOR_mca(struct xen_mc *mc_op)
+{
+ mc_op->interface_version = XEN_MCA_INTERFACE_VERSION;
+ return _hypercall1(int, mca, mc_op);
+}
+
+static inline int
+HYPERVISOR_platform_op(struct xen_platform_op *op)
+{
+ op->interface_version = XENPF_INTERFACE_VERSION;
+ return _hypercall1(int, platform_op, op);
+}
+
+static inline long
+HYPERVISOR_memory_op(unsigned int cmd, void *arg)
+{
+ return _hypercall2(long, memory_op, cmd, arg);
+}
+
+static inline int
+HYPERVISOR_multicall(void *call_list, uint32_t nr_calls)
+{
+ return _hypercall2(int, multicall, call_list, nr_calls);
+}
+
+static inline int
+HYPERVISOR_event_channel_op(int cmd, void *arg)
+{
+ return _hypercall2(int, event_channel_op, cmd, arg);
+}
+
+static __always_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)
+{
+ return _hypercall2(int, physdev_op, cmd, arg);
+}
+
+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_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_suspend(unsigned long start_info_mfn)
+{
+ struct sched_shutdown r = { .reason = SHUTDOWN_suspend };
+
+ /*
+ * For a PV guest the tools require that the start_info mfn be
+ * present in rdx/edx when the hypercall is made. Per the
+ * hypercall calling convention this is the third hypercall
+ * argument, which is start_info_mfn here.
+ */
+ return _hypercall3(int, sched_op, SCHEDOP_shutdown, &r, start_info_mfn);
+}
+
+static inline unsigned long __must_check
+HYPERVISOR_hvm_op(int op, void *arg)
+{
+ return _hypercall2(unsigned long, hvm_op, op, arg);
+}
+
+static inline int
+HYPERVISOR_xenpmu_op(unsigned int op, void *arg)
+{
+ return _hypercall2(int, xenpmu_op, op, arg);
+}
+
+static inline int
+HYPERVISOR_dm_op(
+ domid_t dom, unsigned int nr_bufs, struct xen_dm_op_buf *bufs)
+{
+ int ret;
+ __xen_stac();
+ ret = _hypercall3(int, dm_op, dom, nr_bufs, bufs);
+ __xen_clac();
+ return ret;
+}
+
+#endif /* _ASM_X86_XEN_HYPERCALL_H */