diff options
author | 2023-02-21 18:24:12 -0800 | |
---|---|---|
committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /arch/x86/include/asm/xen/hypercall.h | |
download | linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip |
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.h | 504 |
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 */ |