diff options
author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2011-11-09 16:04:46 -0500 |
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committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2011-11-09 16:04:46 -0500 |
commit | 38cbbcb829ec77b87ba225c3a0785a2875fee0ce (patch) | |
tree | f0fd92c5f401611a0373475aa6ad86c44079601a | |
parent | 0cfd8ac8e702db147a9a664212f597f627b3f7e9 (diff) | |
parent | 23757fb5d6781bf945d21d1f5373aa71122cbea9 (diff) | |
download | xen-38cbbcb829ec77b87ba225c3a0785a2875fee0ce.tar.gz |
Merge branch 'upstream/microcode' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen into stable/misc
* 'upstream/microcode' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen:
xen: add CPU microcode update driver
xen: add dom0_op hypercall
xen/acpi: Domain0 acpi parser related platform hypercall
-rw-r--r-- | arch/ia64/include/asm/xen/interface.h | 1 | ||||
-rw-r--r-- | arch/x86/include/asm/microcode.h | 9 | ||||
-rw-r--r-- | arch/x86/include/asm/xen/hypercall.h | 8 | ||||
-rw-r--r-- | arch/x86/include/asm/xen/interface.h | 1 | ||||
-rw-r--r-- | arch/x86/kernel/Makefile | 1 | ||||
-rw-r--r-- | arch/x86/kernel/microcode_core.c | 5 | ||||
-rw-r--r-- | arch/x86/kernel/microcode_xen.c | 198 | ||||
-rw-r--r-- | arch/x86/xen/Kconfig | 4 | ||||
-rw-r--r-- | include/xen/interface/platform.h | 320 | ||||
-rw-r--r-- | include/xen/interface/xen.h | 1 |
10 files changed, 547 insertions, 1 deletions
diff --git a/arch/ia64/include/asm/xen/interface.h b/arch/ia64/include/asm/xen/interface.h index e951e740bdf215..1d2427d116e363 100644 --- a/arch/ia64/include/asm/xen/interface.h +++ b/arch/ia64/include/asm/xen/interface.h @@ -76,6 +76,7 @@ DEFINE_GUEST_HANDLE(char); DEFINE_GUEST_HANDLE(int); DEFINE_GUEST_HANDLE(long); DEFINE_GUEST_HANDLE(void); +DEFINE_GUEST_HANDLE(uint64_t); typedef unsigned long xen_pfn_t; DEFINE_GUEST_HANDLE(xen_pfn_t); diff --git a/arch/x86/include/asm/microcode.h b/arch/x86/include/asm/microcode.h index 24215072d0e1e5..22677d67dffbe0 100644 --- a/arch/x86/include/asm/microcode.h +++ b/arch/x86/include/asm/microcode.h @@ -61,4 +61,13 @@ static inline struct microcode_ops * __init init_amd_microcode(void) } #endif +#ifdef CONFIG_MICROCODE_XEN +extern struct microcode_ops * __init init_xen_microcode(void); +#else +static inline struct microcode_ops * __init init_xen_microcode(void) +{ + return NULL; +} +#endif + #endif /* _ASM_X86_MICROCODE_H */ diff --git a/arch/x86/include/asm/xen/hypercall.h b/arch/x86/include/asm/xen/hypercall.h index d240ea95051934..0c9894e0ebfb59 100644 --- a/arch/x86/include/asm/xen/hypercall.h +++ b/arch/x86/include/asm/xen/hypercall.h @@ -45,6 +45,7 @@ #include <xen/interface/xen.h> #include <xen/interface/sched.h> #include <xen/interface/physdev.h> +#include <xen/interface/platform.h> /* * The hypercall asms have to meet several constraints: @@ -299,6 +300,13 @@ HYPERVISOR_set_timer_op(u64 timeout) } static inline int +HYPERVISOR_dom0_op(struct xen_platform_op *platform_op) +{ + platform_op->interface_version = XENPF_INTERFACE_VERSION; + return _hypercall1(int, dom0_op, platform_op); +} + +static inline int HYPERVISOR_set_debugreg(int reg, unsigned long value) { return _hypercall2(int, set_debugreg, reg, value); diff --git a/arch/x86/include/asm/xen/interface.h b/arch/x86/include/asm/xen/interface.h index 5d4922ad4b9b14..a1f2db5f117081 100644 --- a/arch/x86/include/asm/xen/interface.h +++ b/arch/x86/include/asm/xen/interface.h @@ -55,6 +55,7 @@ DEFINE_GUEST_HANDLE(char); DEFINE_GUEST_HANDLE(int); DEFINE_GUEST_HANDLE(long); DEFINE_GUEST_HANDLE(void); +DEFINE_GUEST_HANDLE(uint64_t); #endif #ifndef HYPERVISOR_VIRT_START diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 90b06d4daee252..443951bb46490a 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -109,6 +109,7 @@ obj-$(CONFIG_PCSPKR_PLATFORM) += pcspeaker.o microcode-y := microcode_core.o microcode-$(CONFIG_MICROCODE_INTEL) += microcode_intel.o microcode-$(CONFIG_MICROCODE_AMD) += microcode_amd.o +microcode-$(CONFIG_MICROCODE_XEN) += microcode_xen.o obj-$(CONFIG_MICROCODE) += microcode.o obj-$(CONFIG_X86_CHECK_BIOS_CORRUPTION) += check.o diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c index f9242800bc8407..ecbcbc03692078 100644 --- a/arch/x86/kernel/microcode_core.c +++ b/arch/x86/kernel/microcode_core.c @@ -84,6 +84,7 @@ #include <linux/mm.h> #include <linux/syscore_ops.h> +#include <xen/xen.h> #include <asm/microcode.h> #include <asm/processor.h> @@ -501,7 +502,9 @@ static int __init microcode_init(void) struct cpuinfo_x86 *c = &cpu_data(0); int error; - if (c->x86_vendor == X86_VENDOR_INTEL) + if (xen_pv_domain()) + microcode_ops = init_xen_microcode(); + else if (c->x86_vendor == X86_VENDOR_INTEL) microcode_ops = init_intel_microcode(); else if (c->x86_vendor == X86_VENDOR_AMD) microcode_ops = init_amd_microcode(); diff --git a/arch/x86/kernel/microcode_xen.c b/arch/x86/kernel/microcode_xen.c new file mode 100644 index 00000000000000..9d2a06b5bf100a --- /dev/null +++ b/arch/x86/kernel/microcode_xen.c @@ -0,0 +1,198 @@ +/* + * Xen microcode update driver + * + * Xen does most of the work here. We just pass the whole blob into + * Xen, and it will apply it to all CPUs as appropriate. Xen will + * worry about how different CPU models are actually updated. + */ +#include <linux/sched.h> +#include <linux/module.h> +#include <linux/firmware.h> +#include <linux/vmalloc.h> +#include <linux/uaccess.h> + +#include <asm/microcode.h> + +#include <xen/xen.h> +#include <xen/interface/platform.h> +#include <xen/interface/xen.h> + +#include <asm/xen/hypercall.h> +#include <asm/xen/hypervisor.h> + +MODULE_DESCRIPTION("Xen microcode update driver"); +MODULE_LICENSE("GPL"); + +struct xen_microcode { + size_t len; + char data[0]; +}; + +static int xen_microcode_update(int cpu) +{ + int err; + struct xen_platform_op op; + struct ucode_cpu_info *uci = ucode_cpu_info + cpu; + struct xen_microcode *uc = uci->mc; + + if (uc == NULL || uc->len == 0) { + /* + * We do all cpus at once, so we don't need to do + * other cpus explicitly (besides, these vcpu numbers + * have no relationship to underlying physical cpus). + */ + return 0; + } + + op.cmd = XENPF_microcode_update; + set_xen_guest_handle(op.u.microcode.data, uc->data); + op.u.microcode.length = uc->len; + + err = HYPERVISOR_dom0_op(&op); + + if (err != 0) + printk(KERN_WARNING "microcode_xen: microcode update failed: %d\n", err); + + return err; +} + +static enum ucode_state xen_request_microcode_fw(int cpu, struct device *device) +{ + char name[30]; + struct cpuinfo_x86 *c = &cpu_data(cpu); + const struct firmware *firmware; + struct ucode_cpu_info *uci = ucode_cpu_info + cpu; + enum ucode_state ret; + struct xen_microcode *uc; + size_t size; + int err; + + switch (c->x86_vendor) { + case X86_VENDOR_INTEL: + snprintf(name, sizeof(name), "intel-ucode/%02x-%02x-%02x", + c->x86, c->x86_model, c->x86_mask); + break; + + case X86_VENDOR_AMD: + snprintf(name, sizeof(name), "amd-ucode/microcode_amd.bin"); + break; + + default: + return UCODE_NFOUND; + } + + err = request_firmware(&firmware, name, device); + if (err) { + pr_debug("microcode: data file %s load failed\n", name); + return UCODE_NFOUND; + } + + /* + * Only bother getting real firmware for cpu 0; the others get + * dummy placeholders. + */ + if (cpu == 0) + size = firmware->size; + else + size = 0; + + if (uci->mc != NULL) { + vfree(uci->mc); + uci->mc = NULL; + } + + ret = UCODE_ERROR; + uc = vmalloc(sizeof(*uc) + size); + if (uc == NULL) + goto out; + + ret = UCODE_OK; + uc->len = size; + memcpy(uc->data, firmware->data, uc->len); + + uci->mc = uc; + +out: + release_firmware(firmware); + + return ret; +} + +static enum ucode_state xen_request_microcode_user(int cpu, + const void __user *buf, size_t size) +{ + struct ucode_cpu_info *uci = ucode_cpu_info + cpu; + struct xen_microcode *uc; + enum ucode_state ret; + size_t unread; + + if (cpu != 0) { + /* No real firmware for non-zero cpus; just store a + placeholder */ + size = 0; + } + + if (uci->mc != NULL) { + vfree(uci->mc); + uci->mc = NULL; + } + + ret = UCODE_ERROR; + uc = vmalloc(sizeof(*uc) + size); + if (uc == NULL) + goto out; + + uc->len = size; + + ret = UCODE_NFOUND; + + unread = copy_from_user(uc->data, buf, size); + + if (unread != 0) { + printk(KERN_WARNING "failed to read %zd of %zd bytes at %p -> %p\n", + unread, size, buf, uc->data); + goto out; + } + + ret = UCODE_OK; + +out: + if (ret == 0) + uci->mc = uc; + else + vfree(uc); + + return ret; +} + +static void xen_microcode_fini_cpu(int cpu) +{ + struct ucode_cpu_info *uci = ucode_cpu_info + cpu; + + vfree(uci->mc); + uci->mc = NULL; +} + +static int xen_collect_cpu_info(int cpu, struct cpu_signature *sig) +{ + sig->sig = 0; + sig->pf = 0; + sig->rev = 0; + + return 0; +} + +static struct microcode_ops microcode_xen_ops = { + .request_microcode_user = xen_request_microcode_user, + .request_microcode_fw = xen_request_microcode_fw, + .collect_cpu_info = xen_collect_cpu_info, + .apply_microcode = xen_microcode_update, + .microcode_fini_cpu = xen_microcode_fini_cpu, +}; + +struct microcode_ops * __init init_xen_microcode(void) +{ + if (!xen_initial_domain()) + return NULL; + return µcode_xen_ops; +} diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig index 5cc821cb2e0968..4d04d4f1acfbb9 100644 --- a/arch/x86/xen/Kconfig +++ b/arch/x86/xen/Kconfig @@ -57,3 +57,7 @@ config XEN_DEBUG help Enable various WARN_ON checks in the Xen MMU code. Enabling this option WILL incur a significant performance overhead. + +config MICROCODE_XEN + def_bool y + depends on XEN_DOM0 && MICROCODE diff --git a/include/xen/interface/platform.h b/include/xen/interface/platform.h new file mode 100644 index 00000000000000..c1684680431b4f --- /dev/null +++ b/include/xen/interface/platform.h @@ -0,0 +1,320 @@ +/****************************************************************************** + * platform.h + * + * Hardware platform operations. Intended for use by domain-0 kernel. + * + * 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. + * + * Copyright (c) 2002-2006, K Fraser + */ + +#ifndef __XEN_PUBLIC_PLATFORM_H__ +#define __XEN_PUBLIC_PLATFORM_H__ + +#include "xen.h" + +#define XENPF_INTERFACE_VERSION 0x03000001 + +/* + * Set clock such that it would read <secs,nsecs> after 00:00:00 UTC, + * 1 January, 1970 if the current system time was <system_time>. + */ +#define XENPF_settime 17 +struct xenpf_settime { + /* IN variables. */ + uint32_t secs; + uint32_t nsecs; + uint64_t system_time; +}; +DEFINE_GUEST_HANDLE_STRUCT(xenpf_settime_t); + +/* + * Request memory range (@mfn, @mfn+@nr_mfns-1) to have type @type. + * On x86, @type is an architecture-defined MTRR memory type. + * On success, returns the MTRR that was used (@reg) and a handle that can + * be passed to XENPF_DEL_MEMTYPE to accurately tear down the new setting. + * (x86-specific). + */ +#define XENPF_add_memtype 31 +struct xenpf_add_memtype { + /* IN variables. */ + unsigned long mfn; + uint64_t nr_mfns; + uint32_t type; + /* OUT variables. */ + uint32_t handle; + uint32_t reg; +}; +DEFINE_GUEST_HANDLE_STRUCT(xenpf_add_memtype_t); + +/* + * Tear down an existing memory-range type. If @handle is remembered then it + * should be passed in to accurately tear down the correct setting (in case + * of overlapping memory regions with differing types). If it is not known + * then @handle should be set to zero. In all cases @reg must be set. + * (x86-specific). + */ +#define XENPF_del_memtype 32 +struct xenpf_del_memtype { + /* IN variables. */ + uint32_t handle; + uint32_t reg; +}; +DEFINE_GUEST_HANDLE_STRUCT(xenpf_del_memtype_t); + +/* Read current type of an MTRR (x86-specific). */ +#define XENPF_read_memtype 33 +struct xenpf_read_memtype { + /* IN variables. */ + uint32_t reg; + /* OUT variables. */ + unsigned long mfn; + uint64_t nr_mfns; + uint32_t type; +}; +DEFINE_GUEST_HANDLE_STRUCT(xenpf_read_memtype_t); + +#define XENPF_microcode_update 35 +struct xenpf_microcode_update { + /* IN variables. */ + GUEST_HANDLE(void) data; /* Pointer to microcode data */ + uint32_t length; /* Length of microcode data. */ +}; +DEFINE_GUEST_HANDLE_STRUCT(xenpf_microcode_update_t); + +#define XENPF_platform_quirk 39 +#define QUIRK_NOIRQBALANCING 1 /* Do not restrict IO-APIC RTE targets */ +#define QUIRK_IOAPIC_BAD_REGSEL 2 /* IO-APIC REGSEL forgets its value */ +#define QUIRK_IOAPIC_GOOD_REGSEL 3 /* IO-APIC REGSEL behaves properly */ +struct xenpf_platform_quirk { + /* IN variables. */ + uint32_t quirk_id; +}; +DEFINE_GUEST_HANDLE_STRUCT(xenpf_platform_quirk_t); + +#define XENPF_firmware_info 50 +#define XEN_FW_DISK_INFO 1 /* from int 13 AH=08/41/48 */ +#define XEN_FW_DISK_MBR_SIGNATURE 2 /* from MBR offset 0x1b8 */ +#define XEN_FW_VBEDDC_INFO 3 /* from int 10 AX=4f15 */ +struct xenpf_firmware_info { + /* IN variables. */ + uint32_t type; + uint32_t index; + /* OUT variables. */ + union { + struct { + /* Int13, Fn48: Check Extensions Present. */ + uint8_t device; /* %dl: bios device number */ + uint8_t version; /* %ah: major version */ + uint16_t interface_support; /* %cx: support bitmap */ + /* Int13, Fn08: Legacy Get Device Parameters. */ + uint16_t legacy_max_cylinder; /* %cl[7:6]:%ch: max cyl # */ + uint8_t legacy_max_head; /* %dh: max head # */ + uint8_t legacy_sectors_per_track; /* %cl[5:0]: max sector # */ + /* Int13, Fn41: Get Device Parameters (as filled into %ds:%esi). */ + /* NB. First uint16_t of buffer must be set to buffer size. */ + GUEST_HANDLE(void) edd_params; + } disk_info; /* XEN_FW_DISK_INFO */ + struct { + uint8_t device; /* bios device number */ + uint32_t mbr_signature; /* offset 0x1b8 in mbr */ + } disk_mbr_signature; /* XEN_FW_DISK_MBR_SIGNATURE */ + struct { + /* Int10, AX=4F15: Get EDID info. */ + uint8_t capabilities; + uint8_t edid_transfer_time; + /* must refer to 128-byte buffer */ + GUEST_HANDLE(uchar) edid; + } vbeddc_info; /* XEN_FW_VBEDDC_INFO */ + } u; +}; +DEFINE_GUEST_HANDLE_STRUCT(xenpf_firmware_info_t); + +#define XENPF_enter_acpi_sleep 51 +struct xenpf_enter_acpi_sleep { + /* IN variables */ + uint16_t pm1a_cnt_val; /* PM1a control value. */ + uint16_t pm1b_cnt_val; /* PM1b control value. */ + uint32_t sleep_state; /* Which state to enter (Sn). */ + uint32_t flags; /* Must be zero. */ +}; +DEFINE_GUEST_HANDLE_STRUCT(xenpf_enter_acpi_sleep_t); + +#define XENPF_change_freq 52 +struct xenpf_change_freq { + /* IN variables */ + uint32_t flags; /* Must be zero. */ + uint32_t cpu; /* Physical cpu. */ + uint64_t freq; /* New frequency (Hz). */ +}; +DEFINE_GUEST_HANDLE_STRUCT(xenpf_change_freq_t); + +/* + * Get idle times (nanoseconds since boot) for physical CPUs specified in the + * @cpumap_bitmap with range [0..@cpumap_nr_cpus-1]. The @idletime array is + * indexed by CPU number; only entries with the corresponding @cpumap_bitmap + * bit set are written to. On return, @cpumap_bitmap is modified so that any + * non-existent CPUs are cleared. Such CPUs have their @idletime array entry + * cleared. + */ +#define XENPF_getidletime 53 +struct xenpf_getidletime { + /* IN/OUT variables */ + /* IN: CPUs to interrogate; OUT: subset of IN which are present */ + GUEST_HANDLE(uchar) cpumap_bitmap; + /* IN variables */ + /* Size of cpumap bitmap. */ + uint32_t cpumap_nr_cpus; + /* Must be indexable for every cpu in cpumap_bitmap. */ + GUEST_HANDLE(uint64_t) idletime; + /* OUT variables */ + /* System time when the idletime snapshots were taken. */ + uint64_t now; +}; +DEFINE_GUEST_HANDLE_STRUCT(xenpf_getidletime_t); + +#define XENPF_set_processor_pminfo 54 + +/* ability bits */ +#define XEN_PROCESSOR_PM_CX 1 +#define XEN_PROCESSOR_PM_PX 2 +#define XEN_PROCESSOR_PM_TX 4 + +/* cmd type */ +#define XEN_PM_CX 0 +#define XEN_PM_PX 1 +#define XEN_PM_TX 2 + +/* Px sub info type */ +#define XEN_PX_PCT 1 +#define XEN_PX_PSS 2 +#define XEN_PX_PPC 4 +#define XEN_PX_PSD 8 + +struct xen_power_register { + uint32_t space_id; + uint32_t bit_width; + uint32_t bit_offset; + uint32_t access_size; + uint64_t address; +}; + +struct xen_processor_csd { + uint32_t domain; /* domain number of one dependent group */ + uint32_t coord_type; /* coordination type */ + uint32_t num; /* number of processors in same domain */ +}; +DEFINE_GUEST_HANDLE_STRUCT(xen_processor_csd); + +struct xen_processor_cx { + struct xen_power_register reg; /* GAS for Cx trigger register */ + uint8_t type; /* cstate value, c0: 0, c1: 1, ... */ + uint32_t latency; /* worst latency (ms) to enter/exit this cstate */ + uint32_t power; /* average power consumption(mW) */ + uint32_t dpcnt; /* number of dependency entries */ + GUEST_HANDLE(xen_processor_csd) dp; /* NULL if no dependency */ +}; +DEFINE_GUEST_HANDLE_STRUCT(xen_processor_cx); + +struct xen_processor_flags { + uint32_t bm_control:1; + uint32_t bm_check:1; + uint32_t has_cst:1; + uint32_t power_setup_done:1; + uint32_t bm_rld_set:1; +}; + +struct xen_processor_power { + uint32_t count; /* number of C state entries in array below */ + struct xen_processor_flags flags; /* global flags of this processor */ + GUEST_HANDLE(xen_processor_cx) states; /* supported c states */ +}; + +struct xen_pct_register { + uint8_t descriptor; + uint16_t length; + uint8_t space_id; + uint8_t bit_width; + uint8_t bit_offset; + uint8_t reserved; + uint64_t address; +}; + +struct xen_processor_px { + uint64_t core_frequency; /* megahertz */ + uint64_t power; /* milliWatts */ + uint64_t transition_latency; /* microseconds */ + uint64_t bus_master_latency; /* microseconds */ + uint64_t control; /* control value */ + uint64_t status; /* success indicator */ +}; +DEFINE_GUEST_HANDLE_STRUCT(xen_processor_px); + +struct xen_psd_package { + uint64_t num_entries; + uint64_t revision; + uint64_t domain; + uint64_t coord_type; + uint64_t num_processors; +}; + +struct xen_processor_performance { + uint32_t flags; /* flag for Px sub info type */ + uint32_t platform_limit; /* Platform limitation on freq usage */ + struct xen_pct_register control_register; + struct xen_pct_register status_register; + uint32_t state_count; /* total available performance states */ + GUEST_HANDLE(xen_processor_px) states; + struct xen_psd_package domain_info; + uint32_t shared_type; /* coordination type of this processor */ +}; +DEFINE_GUEST_HANDLE_STRUCT(xen_processor_performance); + +struct xenpf_set_processor_pminfo { + /* IN variables */ + uint32_t id; /* ACPI CPU ID */ + uint32_t type; /* {XEN_PM_CX, XEN_PM_PX} */ + union { + struct xen_processor_power power;/* Cx: _CST/_CSD */ + struct xen_processor_performance perf; /* Px: _PPC/_PCT/_PSS/_PSD */ + }; +}; +DEFINE_GUEST_HANDLE_STRUCT(xenpf_set_processor_pminfo); + +struct xen_platform_op { + uint32_t cmd; + uint32_t interface_version; /* XENPF_INTERFACE_VERSION */ + union { + struct xenpf_settime settime; + struct xenpf_add_memtype add_memtype; + struct xenpf_del_memtype del_memtype; + struct xenpf_read_memtype read_memtype; + struct xenpf_microcode_update microcode; + struct xenpf_platform_quirk platform_quirk; + struct xenpf_firmware_info firmware_info; + struct xenpf_enter_acpi_sleep enter_acpi_sleep; + struct xenpf_change_freq change_freq; + struct xenpf_getidletime getidletime; + struct xenpf_set_processor_pminfo set_pminfo; + uint8_t pad[128]; + } u; +}; +DEFINE_GUEST_HANDLE_STRUCT(xen_platform_op_t); + +#endif /* __XEN_PUBLIC_PLATFORM_H__ */ diff --git a/include/xen/interface/xen.h b/include/xen/interface/xen.h index 70213b4515ebcd..d83cc08921a862 100644 --- a/include/xen/interface/xen.h +++ b/include/xen/interface/xen.h @@ -453,6 +453,7 @@ struct start_info { /* These flags are passed in the 'flags' field of start_info_t. */ #define SIF_PRIVILEGED (1<<0) /* Is the domain privileged? */ #define SIF_INITDOMAIN (1<<1) /* Is this the initial control domain? */ +#define SIF_PM_MASK (0xFF<<8) /* reserve 1 byte for xen-pm options */ typedef uint64_t cpumap_t; |