d2912cb15bdda (Thomas Gleixner 2019-06-04 10:11:33 +0200 1) // SPDX-License-Identifier: GPL-2.0-only
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 2) /*
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 3) * copyright (c) 2006 IBM Corporation
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 4) * Authored by: Mike D. Day <ncmike@us.ibm.com>
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 5) */
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 6)
5a0e3ad6af866 (Tejun Heo 2010-03-24 17:04:11 +0900 7) #include <linux/slab.h>
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 8) #include <linux/kernel.h>
46894f17af151 (Paul Gortmaker 2016-02-21 19:06:07 -0500 9) #include <linux/init.h>
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 10) #include <linux/kobject.h>
609b0b8c4608d (Ian Campbell 2012-10-17 09:39:09 +0100 11) #include <linux/err.h>
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 12)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 13) #include <asm/xen/hypervisor.h>
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 14) #include <asm/xen/hypercall.h>
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 15)
1ccbf5344c3da (Jeremy Fitzhardinge 2009-10-06 15:11:14 -0700 16) #include <xen/xen.h>
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 17) #include <xen/xenbus.h>
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 18) #include <xen/interface/xen.h>
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 19) #include <xen/interface/version.h>
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 20) #ifdef CONFIG_XEN_HAVE_VPMU
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 21) #include <xen/interface/xenpmu.h>
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 22) #endif
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 23)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 24) #define HYPERVISOR_ATTR_RO(_name) \
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 25) static struct hyp_sysfs_attr _name##_attr = __ATTR_RO(_name)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 26)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 27) #define HYPERVISOR_ATTR_RW(_name) \
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 28) static struct hyp_sysfs_attr _name##_attr = \
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 29) __ATTR(_name, 0644, _name##_show, _name##_store)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 30)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 31) struct hyp_sysfs_attr {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 32) struct attribute attr;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 33) ssize_t (*show)(struct hyp_sysfs_attr *, char *);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 34) ssize_t (*store)(struct hyp_sysfs_attr *, const char *, size_t);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 35) void *hyp_attr_data;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 36) };
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 37)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 38) static ssize_t type_show(struct hyp_sysfs_attr *attr, char *buffer)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 39) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 40) return sprintf(buffer, "xen\n");
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 41) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 42)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 43) HYPERVISOR_ATTR_RO(type);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 44)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 45) static int __init xen_sysfs_type_init(void)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 46) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 47) return sysfs_create_file(hypervisor_kobj, &type_attr.attr);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 48) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 49)
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 50) static ssize_t guest_type_show(struct hyp_sysfs_attr *attr, char *buffer)
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 51) {
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 52) const char *type;
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 53)
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 54) switch (xen_domain_type) {
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 55) case XEN_NATIVE:
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 56) /* ARM only. */
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 57) type = "Xen";
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 58) break;
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 59) case XEN_PV_DOMAIN:
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 60) type = "PV";
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 61) break;
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 62) case XEN_HVM_DOMAIN:
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 63) type = xen_pvh_domain() ? "PVH" : "HVM";
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 64) break;
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 65) default:
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 66) return -EINVAL;
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 67) }
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 68)
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 69) return sprintf(buffer, "%s\n", type);
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 70) }
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 71)
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 72) HYPERVISOR_ATTR_RO(guest_type);
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 73)
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 74) static int __init xen_sysfs_guest_type_init(void)
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 75) {
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 76) return sysfs_create_file(hypervisor_kobj, &guest_type_attr.attr);
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 77) }
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 78)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 79) /* xen version attributes */
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 80) static ssize_t major_show(struct hyp_sysfs_attr *attr, char *buffer)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 81) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 82) int version = HYPERVISOR_xen_version(XENVER_version, NULL);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 83) if (version)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 84) return sprintf(buffer, "%d\n", version >> 16);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 85) return -ENODEV;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 86) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 87)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 88) HYPERVISOR_ATTR_RO(major);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 89)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 90) static ssize_t minor_show(struct hyp_sysfs_attr *attr, char *buffer)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 91) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 92) int version = HYPERVISOR_xen_version(XENVER_version, NULL);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 93) if (version)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 94) return sprintf(buffer, "%d\n", version & 0xff);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 95) return -ENODEV;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 96) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 97)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 98) HYPERVISOR_ATTR_RO(minor);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 99)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 100) static ssize_t extra_show(struct hyp_sysfs_attr *attr, char *buffer)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 101) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 102) int ret = -ENOMEM;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 103) char *extra;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 104)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 105) extra = kmalloc(XEN_EXTRAVERSION_LEN, GFP_KERNEL);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 106) if (extra) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 107) ret = HYPERVISOR_xen_version(XENVER_extraversion, extra);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 108) if (!ret)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 109) ret = sprintf(buffer, "%s\n", extra);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 110) kfree(extra);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 111) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 112)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 113) return ret;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 114) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 115)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 116) HYPERVISOR_ATTR_RO(extra);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 117)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 118) static struct attribute *version_attrs[] = {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 119) &major_attr.attr,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 120) &minor_attr.attr,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 121) &extra_attr.attr,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 122) NULL
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 123) };
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 124)
ead1d01425bbd (Jan Beulich 2012-03-14 12:34:19 -0400 125) static const struct attribute_group version_group = {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 126) .name = "version",
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 127) .attrs = version_attrs,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 128) };
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 129)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 130) static int __init xen_sysfs_version_init(void)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 131) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 132) return sysfs_create_group(hypervisor_kobj, &version_group);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 133) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 134)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 135) /* UUID */
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 136)
5c13f8067745e (Daniel De Graaf 2012-08-16 16:40:26 -0400 137) static ssize_t uuid_show_fallback(struct hyp_sysfs_attr *attr, char *buffer)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 138) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 139) char *vm, *val;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 140) int ret;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 141) extern int xenstored_ready;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 142)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 143) if (!xenstored_ready)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 144) return -EBUSY;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 145)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 146) vm = xenbus_read(XBT_NIL, "vm", "", NULL);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 147) if (IS_ERR(vm))
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 148) return PTR_ERR(vm);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 149) val = xenbus_read(XBT_NIL, vm, "uuid", NULL);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 150) kfree(vm);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 151) if (IS_ERR(val))
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 152) return PTR_ERR(val);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 153) ret = sprintf(buffer, "%s\n", val);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 154) kfree(val);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 155) return ret;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 156) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 157)
5c13f8067745e (Daniel De Graaf 2012-08-16 16:40:26 -0400 158) static ssize_t uuid_show(struct hyp_sysfs_attr *attr, char *buffer)
5c13f8067745e (Daniel De Graaf 2012-08-16 16:40:26 -0400 159) {
5c13f8067745e (Daniel De Graaf 2012-08-16 16:40:26 -0400 160) xen_domain_handle_t uuid;
5c13f8067745e (Daniel De Graaf 2012-08-16 16:40:26 -0400 161) int ret;
5c13f8067745e (Daniel De Graaf 2012-08-16 16:40:26 -0400 162) ret = HYPERVISOR_xen_version(XENVER_guest_handle, uuid);
5c13f8067745e (Daniel De Graaf 2012-08-16 16:40:26 -0400 163) if (ret)
5c13f8067745e (Daniel De Graaf 2012-08-16 16:40:26 -0400 164) return uuid_show_fallback(attr, buffer);
5c13f8067745e (Daniel De Graaf 2012-08-16 16:40:26 -0400 165) ret = sprintf(buffer, "%pU\n", uuid);
5c13f8067745e (Daniel De Graaf 2012-08-16 16:40:26 -0400 166) return ret;
5c13f8067745e (Daniel De Graaf 2012-08-16 16:40:26 -0400 167) }
5c13f8067745e (Daniel De Graaf 2012-08-16 16:40:26 -0400 168)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 169) HYPERVISOR_ATTR_RO(uuid);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 170)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 171) static int __init xen_sysfs_uuid_init(void)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 172) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 173) return sysfs_create_file(hypervisor_kobj, &uuid_attr.attr);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 174) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 175)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 176) /* xen compilation attributes */
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 177)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 178) static ssize_t compiler_show(struct hyp_sysfs_attr *attr, char *buffer)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 179) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 180) int ret = -ENOMEM;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 181) struct xen_compile_info *info;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 182)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 183) info = kmalloc(sizeof(struct xen_compile_info), GFP_KERNEL);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 184) if (info) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 185) ret = HYPERVISOR_xen_version(XENVER_compile_info, info);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 186) if (!ret)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 187) ret = sprintf(buffer, "%s\n", info->compiler);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 188) kfree(info);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 189) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 190)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 191) return ret;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 192) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 193)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 194) HYPERVISOR_ATTR_RO(compiler);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 195)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 196) static ssize_t compiled_by_show(struct hyp_sysfs_attr *attr, char *buffer)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 197) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 198) int ret = -ENOMEM;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 199) struct xen_compile_info *info;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 200)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 201) info = kmalloc(sizeof(struct xen_compile_info), GFP_KERNEL);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 202) if (info) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 203) ret = HYPERVISOR_xen_version(XENVER_compile_info, info);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 204) if (!ret)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 205) ret = sprintf(buffer, "%s\n", info->compile_by);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 206) kfree(info);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 207) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 208)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 209) return ret;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 210) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 211)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 212) HYPERVISOR_ATTR_RO(compiled_by);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 213)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 214) static ssize_t compile_date_show(struct hyp_sysfs_attr *attr, char *buffer)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 215) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 216) int ret = -ENOMEM;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 217) struct xen_compile_info *info;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 218)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 219) info = kmalloc(sizeof(struct xen_compile_info), GFP_KERNEL);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 220) if (info) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 221) ret = HYPERVISOR_xen_version(XENVER_compile_info, info);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 222) if (!ret)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 223) ret = sprintf(buffer, "%s\n", info->compile_date);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 224) kfree(info);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 225) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 226)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 227) return ret;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 228) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 229)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 230) HYPERVISOR_ATTR_RO(compile_date);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 231)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 232) static struct attribute *xen_compile_attrs[] = {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 233) &compiler_attr.attr,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 234) &compiled_by_attr.attr,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 235) &compile_date_attr.attr,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 236) NULL
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 237) };
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 238)
ead1d01425bbd (Jan Beulich 2012-03-14 12:34:19 -0400 239) static const struct attribute_group xen_compilation_group = {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 240) .name = "compilation",
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 241) .attrs = xen_compile_attrs,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 242) };
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 243)
5b00b504b13b2 (Juergen Gross 2016-08-02 08:53:36 +0200 244) static int __init xen_sysfs_compilation_init(void)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 245) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 246) return sysfs_create_group(hypervisor_kobj, &xen_compilation_group);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 247) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 248)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 249) /* xen properties info */
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 250)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 251) static ssize_t capabilities_show(struct hyp_sysfs_attr *attr, char *buffer)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 252) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 253) int ret = -ENOMEM;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 254) char *caps;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 255)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 256) caps = kmalloc(XEN_CAPABILITIES_INFO_LEN, GFP_KERNEL);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 257) if (caps) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 258) ret = HYPERVISOR_xen_version(XENVER_capabilities, caps);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 259) if (!ret)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 260) ret = sprintf(buffer, "%s\n", caps);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 261) kfree(caps);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 262) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 263)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 264) return ret;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 265) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 266)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 267) HYPERVISOR_ATTR_RO(capabilities);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 268)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 269) static ssize_t changeset_show(struct hyp_sysfs_attr *attr, char *buffer)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 270) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 271) int ret = -ENOMEM;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 272) char *cset;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 273)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 274) cset = kmalloc(XEN_CHANGESET_INFO_LEN, GFP_KERNEL);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 275) if (cset) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 276) ret = HYPERVISOR_xen_version(XENVER_changeset, cset);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 277) if (!ret)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 278) ret = sprintf(buffer, "%s\n", cset);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 279) kfree(cset);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 280) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 281)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 282) return ret;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 283) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 284)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 285) HYPERVISOR_ATTR_RO(changeset);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 286)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 287) static ssize_t virtual_start_show(struct hyp_sysfs_attr *attr, char *buffer)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 288) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 289) int ret = -ENOMEM;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 290) struct xen_platform_parameters *parms;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 291)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 292) parms = kmalloc(sizeof(struct xen_platform_parameters), GFP_KERNEL);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 293) if (parms) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 294) ret = HYPERVISOR_xen_version(XENVER_platform_parameters,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 295) parms);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 296) if (!ret)
37ea0fcb6a3f3 (Ian Campbell 2012-10-17 09:39:10 +0100 297) ret = sprintf(buffer, "%"PRI_xen_ulong"\n",
37ea0fcb6a3f3 (Ian Campbell 2012-10-17 09:39:10 +0100 298) parms->virt_start);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 299) kfree(parms);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 300) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 301)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 302) return ret;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 303) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 304)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 305) HYPERVISOR_ATTR_RO(virtual_start);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 306)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 307) static ssize_t pagesize_show(struct hyp_sysfs_attr *attr, char *buffer)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 308) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 309) int ret;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 310)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 311) ret = HYPERVISOR_xen_version(XENVER_pagesize, NULL);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 312) if (ret > 0)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 313) ret = sprintf(buffer, "%x\n", ret);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 314)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 315) return ret;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 316) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 317)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 318) HYPERVISOR_ATTR_RO(pagesize);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 319)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 320) static ssize_t xen_feature_show(int index, char *buffer)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 321) {
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 322) ssize_t ret;
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 323) struct xen_feature_info info;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 324)
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 325) info.submap_idx = index;
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 326) ret = HYPERVISOR_xen_version(XENVER_get_features, &info);
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 327) if (!ret)
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 328) ret = sprintf(buffer, "%08x", info.submap);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 329)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 330) return ret;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 331) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 332)
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 333) static ssize_t features_show(struct hyp_sysfs_attr *attr, char *buffer)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 334) {
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 335) ssize_t len;
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 336) int i;
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 337)
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 338) len = 0;
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 339) for (i = XENFEAT_NR_SUBMAPS-1; i >= 0; i--) {
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 340) int ret = xen_feature_show(i, buffer + len);
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 341) if (ret < 0) {
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 342) if (len == 0)
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 343) len = ret;
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 344) break;
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 345) }
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 346) len += ret;
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 347) }
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 348) if (len > 0)
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 349) buffer[len++] = '\n';
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 350)
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 351) return len;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 352) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 353)
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 354) HYPERVISOR_ATTR_RO(features);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 355)
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 356) static ssize_t buildid_show(struct hyp_sysfs_attr *attr, char *buffer)
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 357) {
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 358) ssize_t ret;
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 359) struct xen_build_id *buildid;
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 360)
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 361) ret = HYPERVISOR_xen_version(XENVER_build_id, NULL);
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 362) if (ret < 0) {
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 363) if (ret == -EPERM)
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 364) ret = sprintf(buffer, "<denied>");
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 365) return ret;
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 366) }
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 367)
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 368) buildid = kmalloc(sizeof(*buildid) + ret, GFP_KERNEL);
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 369) if (!buildid)
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 370) return -ENOMEM;
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 371)
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 372) buildid->len = ret;
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 373) ret = HYPERVISOR_xen_version(XENVER_build_id, buildid);
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 374) if (ret > 0)
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 375) ret = sprintf(buffer, "%s", buildid->buf);
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 376) kfree(buildid);
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 377)
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 378) return ret;
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 379) }
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 380)
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 381) HYPERVISOR_ATTR_RO(buildid);
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 382)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 383) static struct attribute *xen_properties_attrs[] = {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 384) &capabilities_attr.attr,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 385) &changeset_attr.attr,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 386) &virtual_start_attr.attr,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 387) &pagesize_attr.attr,
a649b720614d5 (Jeremy Fitzhardinge 2009-03-10 17:17:41 -0700 388) &features_attr.attr,
84b7625728ea3 (Juergen Gross 2017-06-14 19:23:52 +0200 389) &buildid_attr.attr,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 390) NULL
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 391) };
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 392)
ead1d01425bbd (Jan Beulich 2012-03-14 12:34:19 -0400 393) static const struct attribute_group xen_properties_group = {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 394) .name = "properties",
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 395) .attrs = xen_properties_attrs,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 396) };
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 397)
5b00b504b13b2 (Juergen Gross 2016-08-02 08:53:36 +0200 398) static int __init xen_sysfs_properties_init(void)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 399) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 400) return sysfs_create_group(hypervisor_kobj, &xen_properties_group);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 401) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 402)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 403) #ifdef CONFIG_XEN_HAVE_VPMU
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 404) struct pmu_mode {
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 405) const char *name;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 406) uint32_t mode;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 407) };
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 408)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 409) static struct pmu_mode pmu_modes[] = {
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 410) {"off", XENPMU_MODE_OFF},
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 411) {"self", XENPMU_MODE_SELF},
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 412) {"hv", XENPMU_MODE_HV},
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 413) {"all", XENPMU_MODE_ALL}
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 414) };
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 415)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 416) static ssize_t pmu_mode_store(struct hyp_sysfs_attr *attr,
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 417) const char *buffer, size_t len)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 418) {
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 419) int ret;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 420) struct xen_pmu_params xp;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 421) int i;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 422)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 423) for (i = 0; i < ARRAY_SIZE(pmu_modes); i++) {
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 424) if (strncmp(buffer, pmu_modes[i].name, len - 1) == 0) {
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 425) xp.val = pmu_modes[i].mode;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 426) break;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 427) }
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 428) }
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 429)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 430) if (i == ARRAY_SIZE(pmu_modes))
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 431) return -EINVAL;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 432)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 433) xp.version.maj = XENPMU_VER_MAJ;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 434) xp.version.min = XENPMU_VER_MIN;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 435) ret = HYPERVISOR_xenpmu_op(XENPMU_mode_set, &xp);
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 436) if (ret)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 437) return ret;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 438)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 439) return len;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 440) }
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 441)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 442) static ssize_t pmu_mode_show(struct hyp_sysfs_attr *attr, char *buffer)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 443) {
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 444) int ret;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 445) struct xen_pmu_params xp;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 446) int i;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 447) uint32_t mode;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 448)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 449) xp.version.maj = XENPMU_VER_MAJ;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 450) xp.version.min = XENPMU_VER_MIN;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 451) ret = HYPERVISOR_xenpmu_op(XENPMU_mode_get, &xp);
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 452) if (ret)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 453) return ret;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 454)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 455) mode = (uint32_t)xp.val;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 456) for (i = 0; i < ARRAY_SIZE(pmu_modes); i++) {
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 457) if (mode == pmu_modes[i].mode)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 458) return sprintf(buffer, "%s\n", pmu_modes[i].name);
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 459) }
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 460)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 461) return -EINVAL;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 462) }
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 463) HYPERVISOR_ATTR_RW(pmu_mode);
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 464)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 465) static ssize_t pmu_features_store(struct hyp_sysfs_attr *attr,
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 466) const char *buffer, size_t len)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 467) {
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 468) int ret;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 469) uint32_t features;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 470) struct xen_pmu_params xp;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 471)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 472) ret = kstrtou32(buffer, 0, &features);
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 473) if (ret)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 474) return ret;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 475)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 476) xp.val = features;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 477) xp.version.maj = XENPMU_VER_MAJ;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 478) xp.version.min = XENPMU_VER_MIN;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 479) ret = HYPERVISOR_xenpmu_op(XENPMU_feature_set, &xp);
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 480) if (ret)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 481) return ret;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 482)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 483) return len;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 484) }
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 485)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 486) static ssize_t pmu_features_show(struct hyp_sysfs_attr *attr, char *buffer)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 487) {
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 488) int ret;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 489) struct xen_pmu_params xp;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 490)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 491) xp.version.maj = XENPMU_VER_MAJ;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 492) xp.version.min = XENPMU_VER_MIN;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 493) ret = HYPERVISOR_xenpmu_op(XENPMU_feature_get, &xp);
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 494) if (ret)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 495) return ret;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 496)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 497) return sprintf(buffer, "0x%x\n", (uint32_t)xp.val);
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 498) }
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 499) HYPERVISOR_ATTR_RW(pmu_features);
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 500)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 501) static struct attribute *xen_pmu_attrs[] = {
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 502) &pmu_mode_attr.attr,
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 503) &pmu_features_attr.attr,
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 504) NULL
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 505) };
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 506)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 507) static const struct attribute_group xen_pmu_group = {
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 508) .name = "pmu",
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 509) .attrs = xen_pmu_attrs,
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 510) };
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 511)
5b00b504b13b2 (Juergen Gross 2016-08-02 08:53:36 +0200 512) static int __init xen_sysfs_pmu_init(void)
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 513) {
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 514) return sysfs_create_group(hypervisor_kobj, &xen_pmu_group);
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 515) }
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 516) #endif
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 517)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 518) static int __init hyper_sysfs_init(void)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 519) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 520) int ret;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 521)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 522) if (!xen_domain())
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 523) return -ENODEV;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 524)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 525) ret = xen_sysfs_type_init();
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 526) if (ret)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 527) goto out;
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 528) ret = xen_sysfs_guest_type_init();
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 529) if (ret)
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 530) goto guest_type_out;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 531) ret = xen_sysfs_version_init();
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 532) if (ret)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 533) goto version_out;
5b00b504b13b2 (Juergen Gross 2016-08-02 08:53:36 +0200 534) ret = xen_sysfs_compilation_init();
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 535) if (ret)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 536) goto comp_out;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 537) ret = xen_sysfs_uuid_init();
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 538) if (ret)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 539) goto uuid_out;
5b00b504b13b2 (Juergen Gross 2016-08-02 08:53:36 +0200 540) ret = xen_sysfs_properties_init();
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 541) if (ret)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 542) goto prop_out;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 543) #ifdef CONFIG_XEN_HAVE_VPMU
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 544) if (xen_initial_domain()) {
5b00b504b13b2 (Juergen Gross 2016-08-02 08:53:36 +0200 545) ret = xen_sysfs_pmu_init();
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 546) if (ret) {
46894f17af151 (Paul Gortmaker 2016-02-21 19:06:07 -0500 547) sysfs_remove_group(hypervisor_kobj,
46894f17af151 (Paul Gortmaker 2016-02-21 19:06:07 -0500 548) &xen_properties_group);
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 549) goto prop_out;
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 550) }
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 551) }
5f141548824ce (Boris Ostrovsky 2015-08-10 16:34:33 -0400 552) #endif
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 553) goto out;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 554)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 555) prop_out:
46894f17af151 (Paul Gortmaker 2016-02-21 19:06:07 -0500 556) sysfs_remove_file(hypervisor_kobj, &uuid_attr.attr);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 557) uuid_out:
46894f17af151 (Paul Gortmaker 2016-02-21 19:06:07 -0500 558) sysfs_remove_group(hypervisor_kobj, &xen_compilation_group);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 559) comp_out:
46894f17af151 (Paul Gortmaker 2016-02-21 19:06:07 -0500 560) sysfs_remove_group(hypervisor_kobj, &version_group);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 561) version_out:
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 562) sysfs_remove_file(hypervisor_kobj, &guest_type_attr.attr);
4a4c29c96dde0 (Juergen Gross 2017-06-14 17:12:45 +0200 563) guest_type_out:
46894f17af151 (Paul Gortmaker 2016-02-21 19:06:07 -0500 564) sysfs_remove_file(hypervisor_kobj, &type_attr.attr);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 565) out:
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 566) return ret;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 567) }
46894f17af151 (Paul Gortmaker 2016-02-21 19:06:07 -0500 568) device_initcall(hyper_sysfs_init);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 569)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 570) static ssize_t hyp_sysfs_show(struct kobject *kobj,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 571) struct attribute *attr,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 572) char *buffer)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 573) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 574) struct hyp_sysfs_attr *hyp_attr;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 575) hyp_attr = container_of(attr, struct hyp_sysfs_attr, attr);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 576) if (hyp_attr->show)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 577) return hyp_attr->show(hyp_attr, buffer);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 578) return 0;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 579) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 580)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 581) static ssize_t hyp_sysfs_store(struct kobject *kobj,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 582) struct attribute *attr,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 583) const char *buffer,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 584) size_t len)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 585) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 586) struct hyp_sysfs_attr *hyp_attr;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 587) hyp_attr = container_of(attr, struct hyp_sysfs_attr, attr);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 588) if (hyp_attr->store)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 589) return hyp_attr->store(hyp_attr, buffer, len);
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 590) return 0;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 591) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 592)
52cf25d0ab7f7 (Emese Revfy 2010-01-19 02:58:23 +0100 593) static const struct sysfs_ops hyp_sysfs_ops = {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 594) .show = hyp_sysfs_show,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 595) .store = hyp_sysfs_store,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 596) };
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 597)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 598) static struct kobj_type hyp_sysfs_kobj_type = {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 599) .sysfs_ops = &hyp_sysfs_ops,
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 600) };
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 601)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 602) static int __init hypervisor_subsys_init(void)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 603) {
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 604) if (!xen_domain())
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 605) return -ENODEV;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 606)
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 607) hypervisor_kobj->ktype = &hyp_sysfs_kobj_type;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 608) return 0;
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 609) }
cff7e81b3dd7c (Jeremy Fitzhardinge 2009-03-10 14:39:59 -0700 610) device_initcall(hypervisor_subsys_init);
VisionFive2 Linux kernel
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