diff --git a/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c b/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c
index 1f0774fef26f7..89161ccf3f1a2 100644
--- a/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c
+++ b/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c
@@ -35,7 +35,7 @@
 
 /* Supported SST hardware version by this driver */
 #define ISST_MAJOR_VERSION	0
-#define ISST_MINOR_VERSION	1
+#define ISST_MINOR_VERSION	2
 
 /*
  * Used to indicate if value read from MMIO needs to get multiplied
@@ -381,7 +381,7 @@ static int sst_main(struct auxiliary_device *auxdev, struct tpmi_per_power_domai
 		return -ENODEV;
 	}
 
-	if (TPMI_MINOR_VERSION(pd_info->sst_header.interface_version) != ISST_MINOR_VERSION)
+	if (TPMI_MINOR_VERSION(pd_info->sst_header.interface_version) > ISST_MINOR_VERSION)
 		dev_info(dev, "SST: Ignore: Unsupported minor version:%lx\n",
 			 TPMI_MINOR_VERSION(pd_info->sst_header.interface_version));
 
@@ -1017,6 +1017,7 @@ static int isst_if_set_perf_feature(void __user *argp)
 
 #define SST_PP_INFO_10_OFFSET	80
 #define SST_PP_INFO_11_OFFSET	88
+#define SST_PP_INFO_12_OFFSET	96
 
 #define SST_PP_P1_SSE_START	0
 #define SST_PP_P1_SSE_WIDTH	8
@@ -1069,6 +1070,15 @@ static int isst_if_set_perf_feature(void __user *argp)
 #define SST_PP_CORE_RATIO_PM_FABRIC_START	48
 #define SST_PP_CORE_RATIO_PM_FABRIC_WIDTH	8
 
+#define SST_PP_CORE_RATIO_P0_FABRIC_1_START	0
+#define SST_PP_CORE_RATIO_P0_FABRIC_1_WIDTH	8
+
+#define SST_PP_CORE_RATIO_P1_FABRIC_1_START	8
+#define SST_PP_CORE_RATIO_P1_FABRIC_1_WIDTH	8
+
+#define SST_PP_CORE_RATIO_PM_FABRIC_1_START	16
+#define SST_PP_CORE_RATIO_PM_FABRIC_1_WIDTH	8
+
 static int isst_if_get_perf_level_info(void __user *argp)
 {
 	struct isst_perf_level_data_info perf_level;
@@ -1168,6 +1178,59 @@ static int isst_if_get_perf_level_info(void __user *argp)
 	return 0;
 }
 
+static int isst_if_get_perf_level_fabric_info(void __user *argp)
+{
+	struct isst_perf_level_fabric_info perf_level_fabric;
+	struct tpmi_per_power_domain_info *power_domain_info;
+	int start = SST_PP_CORE_RATIO_P0_FABRIC_START;
+	int width = SST_PP_CORE_RATIO_P0_FABRIC_WIDTH;
+	int offset = SST_PP_INFO_11_OFFSET;
+	int i;
+
+	if (copy_from_user(&perf_level_fabric, argp, sizeof(perf_level_fabric)))
+		return -EFAULT;
+
+	power_domain_info = get_instance(perf_level_fabric.socket_id,
+					 perf_level_fabric.power_domain_id);
+	if (!power_domain_info)
+		return -EINVAL;
+
+	if (perf_level_fabric.level > power_domain_info->max_level)
+		return -EINVAL;
+
+	if (power_domain_info->pp_header.feature_rev < 2)
+		return -EINVAL;
+
+	if (!(power_domain_info->pp_header.level_en_mask & BIT(perf_level_fabric.level)))
+		return -EINVAL;
+
+	/* For revision 2, maximum number of fabrics is 2 */
+	perf_level_fabric.max_fabrics = 2;
+
+	for (i = 0; i < perf_level_fabric.max_fabrics; i++) {
+		_read_pp_level_info("p0_fabric_freq_mhz", perf_level_fabric.p0_fabric_freq_mhz[i],
+				    perf_level_fabric.level, offset, start, width,
+				    SST_MUL_FACTOR_FREQ)
+		start += width;
+
+		_read_pp_level_info("p1_fabric_freq_mhz", perf_level_fabric.p1_fabric_freq_mhz[i],
+				    perf_level_fabric.level, offset, start, width,
+				    SST_MUL_FACTOR_FREQ)
+		start += width;
+
+		_read_pp_level_info("pm_fabric_freq_mhz", perf_level_fabric.pm_fabric_freq_mhz[i],
+				    perf_level_fabric.level, offset, start, width,
+				    SST_MUL_FACTOR_FREQ)
+		offset = SST_PP_INFO_12_OFFSET;
+		start = SST_PP_CORE_RATIO_P0_FABRIC_1_START;
+	}
+
+	if (copy_to_user(argp, &perf_level_fabric, sizeof(perf_level_fabric)))
+		return -EFAULT;
+
+	return 0;
+}
+
 #define SST_PP_FUSED_CORE_COUNT_START	0
 #define SST_PP_FUSED_CORE_COUNT_WIDTH	8
 
@@ -1329,9 +1392,14 @@ static int isst_if_get_tpmi_instance_count(void __user *argp)
 #define SST_TF_INFO_0_OFFSET	0
 #define SST_TF_INFO_1_OFFSET	8
 #define SST_TF_INFO_2_OFFSET	16
+#define SST_TF_INFO_8_OFFSET	64
+#define SST_TF_INFO_8_BUCKETS	3
 
 #define SST_TF_MAX_LP_CLIP_RATIOS	TRL_MAX_LEVELS
 
+#define SST_TF_FEATURE_REV_START	4
+#define SST_TF_FEATURE_REV_WIDTH	8
+
 #define SST_TF_LP_CLIP_RATIO_0_START	16
 #define SST_TF_LP_CLIP_RATIO_0_WIDTH	8
 
@@ -1341,10 +1409,14 @@ static int isst_if_get_tpmi_instance_count(void __user *argp)
 #define SST_TF_NUM_CORE_0_START 0
 #define SST_TF_NUM_CORE_0_WIDTH 8
 
+#define SST_TF_NUM_MOD_0_START	0
+#define SST_TF_NUM_MOD_0_WIDTH	16
+
 static int isst_if_get_turbo_freq_info(void __user *argp)
 {
 	static struct isst_turbo_freq_info turbo_freq;
 	struct tpmi_per_power_domain_info *power_domain_info;
+	u8 feature_rev;
 	int i, j;
 
 	if (copy_from_user(&turbo_freq, argp, sizeof(turbo_freq)))
@@ -1361,6 +1433,10 @@ static int isst_if_get_turbo_freq_info(void __user *argp)
 	turbo_freq.max_trl_levels = TRL_MAX_LEVELS;
 	turbo_freq.max_clip_freqs = SST_TF_MAX_LP_CLIP_RATIOS;
 
+	_read_tf_level_info("feature_rev", feature_rev, turbo_freq.level,
+			    SST_TF_INFO_0_OFFSET, SST_TF_FEATURE_REV_START,
+			    SST_TF_FEATURE_REV_WIDTH, SST_MUL_FACTOR_NONE);
+
 	for (i = 0; i < turbo_freq.max_clip_freqs; ++i)
 		_read_tf_level_info("lp_clip*", turbo_freq.lp_clip_freq_mhz[i],
 				    turbo_freq.level, SST_TF_INFO_0_OFFSET,
@@ -1377,12 +1453,34 @@ static int isst_if_get_turbo_freq_info(void __user *argp)
 					    SST_MUL_FACTOR_FREQ)
 	}
 
+	memset(turbo_freq.bucket_core_counts, 0, sizeof(turbo_freq.bucket_core_counts));
+
+	if (feature_rev >= 2) {
+		bool has_tf_info_8 = false;
+
+		for (i = 0; i < SST_TF_INFO_8_BUCKETS; ++i) {
+			_read_tf_level_info("bucket_*_mod_count", turbo_freq.bucket_core_counts[i],
+					    turbo_freq.level, SST_TF_INFO_8_OFFSET,
+					    SST_TF_NUM_MOD_0_WIDTH * i, SST_TF_NUM_MOD_0_WIDTH,
+					    SST_MUL_FACTOR_NONE)
+
+			if (turbo_freq.bucket_core_counts[i])
+				has_tf_info_8 = true;
+		}
+
+		if (has_tf_info_8)
+			goto done_core_count;
+	}
+
 	for (i = 0; i < TRL_MAX_BUCKETS; ++i)
 		_read_tf_level_info("bucket_*_core_count", turbo_freq.bucket_core_counts[i],
 				    turbo_freq.level, SST_TF_INFO_1_OFFSET,
 				    SST_TF_NUM_CORE_0_WIDTH * i, SST_TF_NUM_CORE_0_WIDTH,
 				    SST_MUL_FACTOR_NONE)
 
+
+done_core_count:
+
 	if (copy_to_user(argp, &turbo_freq, sizeof(turbo_freq)))
 		return -EFAULT;
 
@@ -1421,6 +1519,9 @@ static long isst_if_def_ioctl(struct file *file, unsigned int cmd,
 	case ISST_IF_GET_PERF_LEVEL_INFO:
 		ret = isst_if_get_perf_level_info(argp);
 		break;
+	case ISST_IF_GET_PERF_LEVEL_FABRIC_INFO:
+		ret = isst_if_get_perf_level_fabric_info(argp);
+		break;
 	case ISST_IF_GET_PERF_LEVEL_CPU_MASK:
 		ret = isst_if_get_perf_level_mask(argp);
 		break;
diff --git a/include/uapi/linux/isst_if.h b/include/uapi/linux/isst_if.h
index 0df1a1c3caf4f..8197a4800604e 100644
--- a/include/uapi/linux/isst_if.h
+++ b/include/uapi/linux/isst_if.h
@@ -375,6 +375,30 @@ struct isst_perf_level_data_info {
 	__u16 trl_freq_mhz[TRL_MAX_LEVELS][TRL_MAX_BUCKETS];
 };
 
+#define MAX_FABRIC_COUNT	8
+
+/**
+ * struct isst_perf_level_fabric_info - Structure to get SST-PP fabric details
+ * @socket_id:		Socket/package id
+ * @power_domain_id:	Power Domain id
+ * @level:		SST-PP level for which caller wants to get information
+ * @max_fabrics:	Count of fabrics in resonse
+ * @p0_fabric_freq_mhz: Fabric (Uncore) maximum frequency
+ * @p1_fabric_freq_mhz: Fabric (Uncore) TDP frequency
+ * @pm_fabric_freq_mhz: Fabric (Uncore) minimum frequency
+ *
+ * Structure used to get information on frequencies for fabrics.
+ */
+struct isst_perf_level_fabric_info {
+	__u8 socket_id;
+	__u8 power_domain_id;
+	__u16 level;
+	__u16 max_fabrics;
+	__u16 p0_fabric_freq_mhz[MAX_FABRIC_COUNT];
+	__u16 p1_fabric_freq_mhz[MAX_FABRIC_COUNT];
+	__u16 pm_fabric_freq_mhz[MAX_FABRIC_COUNT];
+};
+
 /**
  * struct isst_perf_level_cpu_mask - Structure to get SST-PP level CPU mask
  * @socket_id:	Socket/package id
@@ -471,5 +495,7 @@ struct isst_turbo_freq_info {
 #define ISST_IF_GET_BASE_FREQ_INFO	_IOR(ISST_IF_MAGIC, 14, struct isst_base_freq_info *)
 #define ISST_IF_GET_BASE_FREQ_CPU_MASK	_IOR(ISST_IF_MAGIC, 15, struct isst_perf_level_cpu_mask *)
 #define ISST_IF_GET_TURBO_FREQ_INFO	_IOR(ISST_IF_MAGIC, 16, struct isst_turbo_freq_info *)
+#define ISST_IF_GET_PERF_LEVEL_FABRIC_INFO _IOR(ISST_IF_MAGIC, 17,\
+						struct isst_perf_level_fabric_info *)
 
 #endif
diff --git a/tools/power/x86/intel-speed-select/Makefile b/tools/power/x86/intel-speed-select/Makefile
index 7221f2f55e8bf..6b299aae2ded8 100644
--- a/tools/power/x86/intel-speed-select/Makefile
+++ b/tools/power/x86/intel-speed-select/Makefile
@@ -13,7 +13,13 @@ endif
 # Do not use make's built-in rules
 # (this improves performance and avoids hard-to-debug behaviour);
 MAKEFLAGS += -r
-override CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include -I/usr/include/libnl3
+
+NL3_CFLAGS = $(shell pkg-config --cflags libnl-3.0 2>/dev/null)
+ifeq ($(NL3_CFLAGS),)
+NL3_CFLAGS = -I/usr/include/libnl3
+endif
+
+override CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include $(NL3_CFLAGS)
 override LDFLAGS += -lnl-genl-3 -lnl-3
 
 ALL_TARGETS := intel-speed-select
diff --git a/tools/power/x86/intel-speed-select/isst-config.c b/tools/power/x86/intel-speed-select/isst-config.c
index 5fcc2a92957e7..2faff1aead526 100644
--- a/tools/power/x86/intel-speed-select/isst-config.c
+++ b/tools/power/x86/intel-speed-select/isst-config.c
@@ -4,8 +4,8 @@
  * Copyright (c) 2019 Intel Corporation.
  */
 
+#include <ctype.h>
 #include <linux/isst_if.h>
-#include <sys/utsname.h>
 
 #include "isst.h"
 
@@ -16,9 +16,9 @@ struct process_cmd_struct {
 	int arg;
 };
 
-static const char *version_str = "v1.17";
+static const char *version_str = "v1.26";
 
-static const int supported_api_ver = 2;
+static const int supported_api_ver = 3;
 static struct isst_if_platform_info isst_platform_info;
 static char *progname;
 static int debug_flag;
@@ -26,8 +26,9 @@ static FILE *outf;
 
 static int cpu_model;
 static int cpu_stepping;
+static int cpu_family;
 
-#define MAX_CPUS_IN_ONE_REQ 256
+#define MAX_CPUS_IN_ONE_REQ 512
 static short max_target_cpus;
 static unsigned short target_cpus[MAX_CPUS_IN_ONE_REQ];
 
@@ -46,6 +47,9 @@ static int force_online_offline;
 static int auto_mode;
 static int fact_enable_fail;
 static int cgroupv2;
+static int max_pkg_id;
+static int max_die_id;
+static int max_die_id_package_0;
 
 /* clos related */
 static int current_clos = -1;
@@ -55,6 +59,8 @@ static int clos_min = -1;
 static int clos_max = -1;
 static int clos_desired = -1;
 static int clos_priority_type;
+static int cpu_0_cgroupv2;
+static int cpu_0_workaround(int isolate);
 
 struct _cpu_map {
 	unsigned short core_id;
@@ -74,6 +80,23 @@ struct cpu_topology {
 	short die_id;
 };
 
+static int read_only;
+
+static void print_version(void)
+{
+	fprintf(outf, "Version %s\n", version_str);
+}
+
+static void check_privilege(void)
+{
+	if (!read_only)
+		return;
+
+	isst_display_error_info_message(1, "Insufficient privileges", 0, 0);
+	isst_ctdp_display_information_end(outf);
+	exit(1);
+}
+
 FILE *get_output_file(void)
 {
 	return outf;
@@ -138,15 +161,25 @@ int is_icx_platform(void)
 	return 0;
 }
 
+static int is_dmr_plus_platform(void)
+{
+	if (cpu_family == 19)
+		return 1;
+
+	return 0;
+}
+
 static int update_cpu_model(void)
 {
 	unsigned int ebx, ecx, edx;
-	unsigned int fms, family;
+	unsigned int fms;
 
 	__cpuid(1, fms, ebx, ecx, edx);
-	family = (fms >> 8) & 0xf;
+	cpu_family = (fms >> 8) & 0xf;
+	if (cpu_family == 0xf)
+		cpu_family += (fms >> 20) & 0xff;
 	cpu_model = (fms >> 4) & 0xf;
-	if (family == 6 || family == 0xf)
+	if (cpu_family == 6 || cpu_family == 0xf)
 		cpu_model += ((fms >> 16) & 0xf) << 4;
 
 	cpu_stepping = fms & 0xf;
@@ -474,42 +507,15 @@ static unsigned int is_cpu_online(int cpu)
 	return online;
 }
 
-static int get_kernel_version(int *major, int *minor)
-{
-	struct utsname buf;
-	int ret;
-
-	ret = uname(&buf);
-	if (ret)
-		return ret;
-
-	ret = sscanf(buf.release, "%d.%d", major, minor);
-	if (ret != 2)
-		return ret;
-
-	return 0;
-}
-
-#define CPU0_HOTPLUG_DEPRECATE_MAJOR_VER	6
-#define CPU0_HOTPLUG_DEPRECATE_MINOR_VER	5
-
 void set_cpu_online_offline(int cpu, int state)
 {
 	char buffer[128];
 	int fd, ret;
 
-	if (!cpu) {
-		int major, minor;
-
-		ret = get_kernel_version(&major, &minor);
-		if (!ret) {
-			if (major > CPU0_HOTPLUG_DEPRECATE_MAJOR_VER || (major == CPU0_HOTPLUG_DEPRECATE_MAJOR_VER &&
-				minor >= CPU0_HOTPLUG_DEPRECATE_MINOR_VER)) {
-				debug_printf("Ignore CPU 0 offline/online for kernel version >= %d.%d\n", major, minor);
-				debug_printf("Use cgroups to isolate CPU 0\n");
-				return;
-			}
-		}
+	if (cpu_0_cgroupv2 && !cpu) {
+		fprintf(stderr, "Will use cgroup v2 for CPU 0\n");
+		cpu_0_workaround(!state);
+		return;
 	}
 
 	snprintf(buffer, sizeof(buffer),
@@ -517,9 +523,10 @@ void set_cpu_online_offline(int cpu, int state)
 
 	fd = open(buffer, O_WRONLY);
 	if (fd < 0) {
-		if (!cpu && state) {
+		if (!cpu) {
 			fprintf(stderr, "This system is not configured for CPU 0 online/offline\n");
-			fprintf(stderr, "Ignoring online request for CPU 0 as this is already online\n");
+			fprintf(stderr, "Will use cgroup v2\n");
+			cpu_0_workaround(!state);
 			return;
 		}
 		err(-1, "%s open failed", buffer);
@@ -579,6 +586,8 @@ void for_each_online_power_domain_in_set(void (*callback)(struct isst_id *, void
 		if (id.pkg < 0 || id.die < 0 || id.punit < 0)
 			continue;
 
+		id.die = id.die % (max_die_id_package_0 + 1);
+
 		valid_mask[id.pkg][id.die] = 1;
 
 		if (cpus[id.pkg][id.die][id.punit] == -1)
@@ -586,6 +595,18 @@ void for_each_online_power_domain_in_set(void (*callback)(struct isst_id *, void
 	}
 
 	for (i = 0; i < MAX_PACKAGE_COUNT; i++) {
+		if (max_die_id > max_pkg_id) {
+			for (k = 0; k < MAX_PUNIT_PER_DIE && k < MAX_DIE_PER_PACKAGE; k++) {
+				id.cpu = cpus[i][k][k];
+				id.pkg = i;
+				id.die = get_physical_die_id(id.cpu);
+				id.punit = k;
+				if (isst_is_punit_valid(&id))
+					callback(&id, arg1, arg2, arg3, arg4);
+			}
+			continue;
+		}
+
 		for (j = 0; j < MAX_DIE_PER_PACKAGE; j++) {
 			/*
 			 * Fix me:
@@ -596,7 +617,10 @@ void for_each_online_power_domain_in_set(void (*callback)(struct isst_id *, void
 			for (k = 0; k < MAX_PUNIT_PER_DIE; k++) {
 				id.cpu = cpus[i][j][k];
 				id.pkg = i;
-				id.die = j;
+				if (id.cpu >= 0)
+					id.die = get_physical_die_id(id.cpu);
+				else
+					id.die = id.pkg;
 				id.punit = k;
 				if (isst_is_punit_valid(&id))
 					callback(&id, arg1, arg2, arg3, arg4);
@@ -798,6 +822,8 @@ static void create_cpu_map(void)
 		cpu_map[i].die_id = die_id;
 		cpu_map[i].core_id = core_id;
 
+		if (max_pkg_id < pkg_id)
+			max_pkg_id = pkg_id;
 
 		punit_id = 0;
 
@@ -819,6 +845,12 @@ static void create_cpu_map(void)
 
 		cpu_cnt[pkg_id][die_id][punit_id]++;
 
+		if (max_die_id < die_id)
+			max_die_id = die_id;
+
+		if (!pkg_id && max_die_id_package_0 < die_id)
+			max_die_id_package_0 = die_id;
+
 		debug_printf(
 			"map logical_cpu:%d core: %d die:%d pkg:%d punit:%d punit_cpu:%d punit_core:%d\n",
 			i, cpu_map[i].core_id, cpu_map[i].die_id,
@@ -906,7 +938,7 @@ int enable_cpuset_controller(void)
 	return 0;
 }
 
-int isolate_cpus(struct isst_id *id, int mask_size, cpu_set_t *cpu_mask, int level)
+int isolate_cpus(struct isst_id *id, int mask_size, cpu_set_t *cpu_mask, int level, int cpu_0_only)
 {
 	int i, first, curr_index, index, ret, fd;
 	static char str[512], dir_name[64];
@@ -936,9 +968,11 @@ int isolate_cpus(struct isst_id *id, int mask_size, cpu_set_t *cpu_mask, int lev
 		ret = write(fd, "member", strlen("member"));
 		if (ret == -1) {
 			printf("Can't update to member\n");
+			close(fd);
 			return ret;
 		}
 
+		close(fd);
 		return 0;
 	}
 
@@ -949,6 +983,12 @@ int isolate_cpus(struct isst_id *id, int mask_size, cpu_set_t *cpu_mask, int lev
 	curr_index = 0;
 	first = 1;
 	str[0] = '\0';
+
+	if (cpu_0_only) {
+		snprintf(str, str_len, "0");
+		goto create_partition;
+	}
+
 	for (i = 0; i < get_topo_max_cpus(); ++i) {
 		if (!is_cpu_in_power_domain(i, id))
 			continue;
@@ -971,6 +1011,7 @@ int isolate_cpus(struct isst_id *id, int mask_size, cpu_set_t *cpu_mask, int lev
 		first = 0;
 	}
 
+create_partition:
 	debug_printf("isolated CPUs list: package:%d curr_index:%d [%s]\n", id->pkg, curr_index ,str);
 
 	snprintf(cpuset_cpus, sizeof(cpuset_cpus), "%s/cpuset.cpus", dir_name);
@@ -1011,6 +1052,74 @@ int isolate_cpus(struct isst_id *id, int mask_size, cpu_set_t *cpu_mask, int lev
 	return 0;
 }
 
+static int cpu_0_workaround(int isolate)
+{
+	int fd, fd1, len, ret;
+	cpu_set_t cpu_mask;
+	struct isst_id id;
+	char str[2];
+
+	debug_printf("isolate CPU 0 state: %d\n", isolate);
+
+	if (isolate)
+		goto isolate;
+
+	/* First check if CPU 0 was isolated to remove isolation. */
+
+	/* If the cpuset.cpus doesn't exist, that means that none of the CPUs are isolated*/
+	fd = open("/sys/fs/cgroup/0-0-0/cpuset.cpus", O_RDONLY, 0);
+	if (fd < 0)
+		return 0;
+
+	len = read(fd, str, sizeof(str));
+	/* Error check, but unlikely to fail. If fails that means that not isolated */
+	if (len == -1)
+		return 0;
+
+
+	/* Is CPU 0 is in isolate list, the display is sorted so first element will be CPU 0*/
+	if (str[0] != '0') {
+		close(fd);
+		return 0;
+	}
+
+	fd1 = open("/sys/fs/cgroup/0-0-0/cpuset.cpus.partition", O_RDONLY, 0);
+	/* Unlikely that, this attribute is not present, but handle error */
+	if (fd1 < 0) {
+		close(fd);
+		return 0;
+	}
+
+	/* Is CPU 0 already changed partition to "member" */
+	len = read(fd1, str, sizeof(str));
+	if (len != -1 && str[0] == 'm') {
+		close(fd1);
+		close(fd);
+		return 0;
+	}
+
+	close(fd1);
+	close(fd);
+
+	debug_printf("CPU 0 was isolated before, so remove isolation\n");
+
+isolate:
+	ret = enable_cpuset_controller();
+	if (ret)
+		goto isolate_fail;
+
+	CPU_ZERO(&cpu_mask);
+	memset(&id, 0, sizeof(struct isst_id));
+	CPU_SET(0, &cpu_mask);
+
+	ret = isolate_cpus(&id, sizeof(cpu_mask), &cpu_mask, isolate, 1);
+isolate_fail:
+	if (ret)
+		fprintf(stderr, "Can't isolate CPU 0\n");
+
+	return ret;
+}
+
 static int isst_fill_platform_info(void)
 {
 	const char *pathname = "/dev/isst_interface";
@@ -1034,8 +1143,9 @@ static int isst_fill_platform_info(void)
 	close(fd);
 
 	if (isst_platform_info.api_version > supported_api_ver) {
+		print_version();
 		printf("Incompatible API versions; Upgrade of tool is required\n");
-		return -1;
+		exit(1);
 	}
 
 set_platform_ops:
@@ -1438,7 +1548,8 @@ static void set_tdp_level_for_cpu(struct isst_id *id, void *arg1, void *arg2, vo
 		usleep(2000);
 
 		/* Adjusting uncore freq */
-		isst_adjust_uncore_freq(id, tdp_level, &ctdp_level);
+		if (!is_dmr_plus_platform())
+			isst_adjust_uncore_freq(id, tdp_level, &ctdp_level);
 
 		fprintf(stderr, "Option is set to online/offline\n");
 		ctdp_level.core_cpumask_size =
@@ -1457,7 +1568,8 @@ static void set_tdp_level_for_cpu(struct isst_id *id, void *arg1, void *arg2, vo
 			if (ret)
 				goto use_offline;
 
-			ret = isolate_cpus(id, ctdp_level.core_cpumask_size, ctdp_level.core_cpumask, tdp_level);
+			ret = isolate_cpus(id, ctdp_level.core_cpumask_size,
+					   ctdp_level.core_cpumask, tdp_level, 0);
 			if (ret)
 				goto use_offline;
 
@@ -1487,6 +1599,8 @@ static void set_tdp_level_for_cpu(struct isst_id *id, void *arg1, void *arg2, vo
 
 static void set_tdp_level(int arg)
 {
+	check_privilege();
+
 	if (cmd_help) {
 		fprintf(stderr, "Set Config TDP level\n");
 		fprintf(stderr,
@@ -1637,6 +1751,9 @@ static int no_turbo(void)
 	return parse_int_file(0, "/sys/devices/system/cpu/intel_pstate/no_turbo");
 }
 
+#define U32_MAX		((unsigned int)~0U)
+#define S32_MAX		((int)(U32_MAX >> 1))
+
 static void adjust_scaling_max_from_base_freq(int cpu)
 {
 	int base_freq, scaling_max_freq;
@@ -1644,7 +1761,7 @@ static void adjust_scaling_max_from_base_freq(int cpu)
 	scaling_max_freq = parse_int_file(0, "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_max_freq", cpu);
 	base_freq = get_cpufreq_base_freq(cpu);
 	if (scaling_max_freq < base_freq || no_turbo())
-		set_cpufreq_scaling_min_max(cpu, 1, base_freq);
+		set_cpufreq_scaling_min_max(cpu, 1, S32_MAX);
 }
 
 static void adjust_scaling_min_from_base_freq(int cpu)
@@ -1955,6 +2072,8 @@ static void set_pbf_enable(int arg)
 {
 	int enable = arg;
 
+	check_privilege();
+
 	if (cmd_help) {
 		if (enable) {
 			fprintf(stderr,
@@ -2002,6 +2121,7 @@ static void dump_fact_config_for_cpu(struct isst_id *id, void *arg1, void *arg2,
 	struct isst_fact_info fact_info;
 	int ret;
 
+	memset(&fact_info, 0, sizeof(fact_info));
 	ret = isst_get_fact_info(id, tdp_level, fact_bucket, &fact_info);
 	if (ret) {
 		isst_display_error_info_message(1, "Failed to get turbo-freq info at this level", 1, tdp_level);
@@ -2120,12 +2240,14 @@ static void set_fact_enable(int arg)
 	int i, ret, enable = arg;
 	struct isst_id id;
 
+	check_privilege();
+
 	if (cmd_help) {
 		if (enable) {
 			fprintf(stderr,
 				"Enable Intel Speed Select Technology Turbo frequency feature\n");
 			fprintf(stderr,
-				"Optional: -t|--trl : Specify turbo ratio limit\n");
+				"Optional: -t|--trl : Specify turbo ratio limit in hex starting with 0x\n");
 			fprintf(stderr,
 				"\tOptional Arguments: -a|--auto : Designate specified target CPUs with");
 			fprintf(stderr,
@@ -2134,7 +2256,7 @@ static void set_fact_enable(int arg)
 			fprintf(stderr,
 				"Disable Intel Speed Select Technology turbo frequency feature\n");
 			fprintf(stderr,
-				"Optional: -t|--trl : Specify turbo ratio limit\n");
+				"Optional: -t|--trl : Specify turbo ratio limit in hex starting with 0x\n");
 			fprintf(stderr,
 				"\tOptional Arguments: -a|--auto : Also disable core-power associations\n");
 		}
@@ -2241,6 +2363,14 @@ static void enable_clos_qos_config(struct isst_id *id, void *arg1, void *arg2, v
 {
 	int ret;
 	int status = *(int *)arg4;
+	int cp_state, cp_cap;
+
+	if (!isst_read_pm_config(id, &cp_state, &cp_cap)) {
+		if (!cp_cap) {
+			isst_display_error_info_message(1, "core-power not supported", 0, 0);
+			return;
+		}
+	}
 
 	if (is_skx_based_platform())
 		clos_priority_type = 1;
@@ -2261,6 +2391,8 @@ static void set_clos_enable(int arg)
 {
 	int enable = arg;
 
+	check_privilege();
+
 	if (cmd_help) {
 		if (enable) {
 			fprintf(stderr,
@@ -2391,6 +2523,8 @@ static void set_clos_config_for_cpu(struct isst_id *id, void *arg1, void *arg2,
 
 static void set_clos_config(int arg)
 {
+	check_privilege();
+
 	if (cmd_help) {
 		fprintf(stderr,
 			"Set core-power configuration for one of the four clos ids\n");
@@ -2456,6 +2590,8 @@ static void set_clos_assoc_for_cpu(struct isst_id *id, void *arg1, void *arg2, v
 
 static void set_clos_assoc(int arg)
 {
+	check_privilege();
+
 	if (cmd_help) {
 		fprintf(stderr, "Associate a clos id to a CPU\n");
 		fprintf(stderr,
@@ -2526,22 +2662,24 @@ static void set_turbo_mode_for_cpu(struct isst_id *id, int status)
 	}
 
 	if (status) {
-		isst_display_result(id, outf, "turbo-mode", "enable", 0);
-	} else {
 		isst_display_result(id, outf, "turbo-mode", "disable", 0);
+	} else {
+		isst_display_result(id, outf, "turbo-mode", "enable", 0);
 	}
 }
 
 static void set_turbo_mode(int arg)
 {
-	int i, enable = arg;
+	int i, disable = arg;
 	struct isst_id id;
 
+	check_privilege();
+
 	if (cmd_help) {
-		if (enable)
-			fprintf(stderr, "Set turbo mode enable\n");
-		else
+		if (disable)
 			fprintf(stderr, "Set turbo mode disable\n");
+		else
+			fprintf(stderr, "Set turbo mode enable\n");
 		exit(0);
 	}
 
@@ -2559,7 +2697,7 @@ static void set_turbo_mode(int arg)
 
 		if (online) {
 			set_isst_id(&id, i);
-			set_turbo_mode_for_cpu(&id, enable);
+			set_turbo_mode_for_cpu(&id, disable);
 		}
 
 	}
@@ -2573,12 +2711,16 @@ static void get_set_trl(struct isst_id *id, void *arg1, void *arg2, void *arg3,
 	int set = *(int *)arg4;
 	int ret;
 
+	if (id->cpu < 0)
+		return;
+
 	if (set && !fact_trl) {
 		isst_display_error_info_message(1, "Invalid TRL. Specify with [-t|--trl]", 0, 0);
 		exit(0);
 	}
 
 	if (set) {
+		check_privilege();
 		ret = isst_set_trl(id, fact_trl);
 		isst_display_result(id, outf, "turbo-mode", "set-trl", ret);
 		return;
@@ -2596,7 +2738,7 @@ static void process_trl(int arg)
 	if (cmd_help) {
 		if (arg) {
 			fprintf(stderr, "Set TRL (turbo ratio limits)\n");
-			fprintf(stderr, "\t t|--trl: Specify turbo ratio limit for setting TRL\n");
+			fprintf(stderr, "\t t|--trl: Specify turbo ratio limit for setting TRL in hex starting with 0x\n");
 		} else {
 			fprintf(stderr, "Get TRL (turbo ratio limits)\n");
 		}
@@ -2730,6 +2872,43 @@ void parse_cpu_command(char *optarg)
 	exit(-1);
 }
 
+static void check_optarg(char *option, int hex)
+{
+	if (optarg) {
+		char *start = optarg;
+		int i;
+
+		if (hex && strlen(optarg) < 3) {
+			/* At least 0x plus one character must be present */
+			fprintf(stderr, "malformed arguments for:%s [%s]\n", option, optarg);
+			exit(0);
+		}
+
+		if (hex) {
+			if (optarg[0] != '0' || tolower(optarg[1]) != 'x') {
+				fprintf(stderr, "malformed arguments for:%s [%s]\n",
+					option, optarg);
+				exit(0);
+			}
+			start = &optarg[2];
+		}
+
+		for (i = 0; i < strlen(start); ++i) {
+			if (hex) {
+				if (!isxdigit(start[i])) {
+					fprintf(stderr, "malformed arguments for:%s [%s]\n",
+						option, optarg);
+					exit(0);
+				}
+			} else if (!isdigit(start[i])) {
+				fprintf(stderr, "malformed arguments for:%s [%s]\n",
+					option, optarg);
+				exit(0);
+			}
+		}
+	}
+}
+
 static void parse_cmd_args(int argc, int start, char **argv)
 {
 	int opt;
@@ -2763,18 +2942,21 @@ static void parse_cmd_args(int argc, int start, char **argv)
 			auto_mode = 1;
 			break;
 		case 'b':
+			check_optarg("bucket", 0);
 			fact_bucket = atoi(optarg);
 			break;
 		case 'h':
 			cmd_help = 1;
 			break;
 		case 'l':
+			check_optarg("level", 0);
 			tdp_level = atoi(optarg);
 			break;
 		case 'o':
 			force_online_offline = 1;
 			break;
 		case 't':
+			check_optarg("trl", 1);
 			sscanf(optarg, "0x%llx", &fact_trl);
 			break;
 		case 'r':
@@ -2791,13 +2973,16 @@ static void parse_cmd_args(int argc, int start, char **argv)
 			break;
 		/* CLOS related */
 		case 'c':
+			check_optarg("clos", 0);
 			current_clos = atoi(optarg);
 			break;
 		case 'd':
+			check_optarg("desired", 0);
 			clos_desired = atoi(optarg);
 			clos_desired /= isst_get_disp_freq_multiplier();
 			break;
 		case 'e':
+			check_optarg("epp", 0);
 			clos_epp = atoi(optarg);
 			if (is_skx_based_platform()) {
 				isst_display_error_info_message(1, "epp can't be specified on this platform", 0, 0);
@@ -2805,14 +2990,17 @@ static void parse_cmd_args(int argc, int start, char **argv)
 			}
 			break;
 		case 'n':
+			check_optarg("min", 0);
 			clos_min = atoi(optarg);
 			clos_min /= isst_get_disp_freq_multiplier();
 			break;
 		case 'm':
+			check_optarg("max", 0);
 			clos_max = atoi(optarg);
 			clos_max /= isst_get_disp_freq_multiplier();
 			break;
 		case 'p':
+			check_optarg("priority", 0);
 			clos_priority_type = atoi(optarg);
 			if (is_skx_based_platform() && !clos_priority_type) {
 				isst_display_error_info_message(1, "Invalid clos priority type: proportional for this platform", 0, 0);
@@ -2820,6 +3008,7 @@ static void parse_cmd_args(int argc, int start, char **argv)
 			}
 			break;
 		case 'w':
+			check_optarg("weight", 0);
 			clos_prop_prio = atoi(optarg);
 			if (is_skx_based_platform()) {
 				isst_display_error_info_message(1, "weight can't be specified on this platform", 0, 0);
@@ -2995,6 +3184,7 @@ static void usage(void)
 	printf("\t[-n|--no-daemon : Don't run as daemon. By default --oob will turn on daemon mode\n");
 	printf("\t[-w|--delay : Delay for reading config level state change in OOB poll mode.\n");
 	printf("\t[-g|--cgroupv2 : Try to use cgroup v2 CPU isolation instead of CPU online/offline.\n");
+	printf("\t[-u|--cpu0-workaround : Don't try to online/offline CPU0 instead use cgroup v2.\n");
 	printf("\nResult format\n");
 	printf("\tResult display uses a common format for each command:\n");
 	printf("\tResults are formatted in text/JSON with\n");
@@ -3011,12 +3201,6 @@ static void usage(void)
 		printf("\tTo get full turbo-freq information dump:\n");
 		printf("\t\tintel-speed-select turbo-freq info -l 0\n");
 	}
-	exit(1);
-}
-
-static void print_version(void)
-{
-	fprintf(outf, "Version %s\n", version_str);
 	exit(0);
 }
 
@@ -3048,17 +3232,28 @@ static void cmdline(int argc, char **argv)
 		{ "no-daemon", no_argument, 0, 'n' },
 		{ "poll-interval", required_argument, 0, 'w' },
 		{ "cgroupv2", required_argument, 0, 'g' },
+		{ "cpu0-workaround", required_argument, 0, 'u' },
 		{ 0, 0, 0, 0 }
 	};
 
 	if (geteuid() != 0) {
-		fprintf(stderr, "Must run as root\n");
-		exit(0);
+		int fd;
+
+		fd = open(pathname, O_RDWR);
+		if (fd < 0) {
+			fprintf(stderr, "Must run as root\n");
+			exit(0);
+		}
+		fprintf(stderr, "\nNot running as root, Only read only operations are supported\n");
+		close(fd);
+		read_only = 1;
 	}
 
 	ret = update_cpu_model();
-	if (ret)
-		err(-1, "Invalid CPU model (%d)\n", cpu_model);
+	if (ret) {
+		fprintf(stderr, "Invalid CPU model (%d)\n", cpu_model);
+		exit(1);
+	}
 	printf("Intel(R) Speed Select Technology\n");
 	printf("Executing on CPU model:%d[0x%x]\n", cpu_model, cpu_model);
 
@@ -3078,7 +3273,7 @@ static void cmdline(int argc, char **argv)
 		goto out;
 
 	progname = argv[0];
-	while ((opt = getopt_long_only(argc, argv, "+c:df:hio:vabw:ng", long_options,
+	while ((opt = getopt_long_only(argc, argv, "+c:df:hio:vabw:ngu", long_options,
 				       &option_index)) != -1) {
 		switch (opt) {
 		case 'a':
@@ -3122,6 +3317,7 @@ static void cmdline(int argc, char **argv)
 			break;
 		case 'v':
 			print_version();
+			exit(0);
 			break;
 		case 'b':
 			oob_mode = 1;
@@ -3140,6 +3336,9 @@ static void cmdline(int argc, char **argv)
 		case 'g':
 			cgroupv2 = 1;
 			break;
+		case 'u':
+			cpu_0_cgroupv2 = 1;
+			break;
 		default:
 			usage();
 		}
diff --git a/tools/power/x86/intel-speed-select/isst-core-mbox.c b/tools/power/x86/intel-speed-select/isst-core-mbox.c
index 24bea57f4ff53..c81ecd602bcfa 100644
--- a/tools/power/x86/intel-speed-select/isst-core-mbox.c
+++ b/tools/power/x86/intel-speed-select/isst-core-mbox.c
@@ -746,6 +746,7 @@ static int mbox_set_pbf_fact_status(struct isst_id *id, int pbf, int enable)
 static int _get_fact_bucket_info(struct isst_id *id, int level,
 			      struct isst_fact_bucket_info *bucket_info)
 {
+	int trl_max_levels = isst_get_trl_max_levels();
 	unsigned int resp;
 	int i, k, ret;
 
@@ -769,7 +770,7 @@ static int _get_fact_bucket_info(struct isst_id *id, int level,
 		}
 	}
 
-	for (k = 0; k < 3; ++k) {
+	for (k = 0; k < trl_max_levels; ++k) {
 		for (i = 0; i < 2; ++i) {
 			int j;
 
diff --git a/tools/power/x86/intel-speed-select/isst-core-tpmi.c b/tools/power/x86/intel-speed-select/isst-core-tpmi.c
index 3458768562e5e..ebaad0dc8ca6f 100644
--- a/tools/power/x86/intel-speed-select/isst-core-tpmi.c
+++ b/tools/power/x86/intel-speed-select/isst-core-tpmi.c
@@ -194,8 +194,14 @@ static int tpmi_get_ctdp_control(struct isst_id *id, int config_index,
 	if (!(info.level_mask & level_mask))
 		return -1;
 
-	ctdp_level->fact_support = info.sst_tf_support;
-	ctdp_level->pbf_support = info.sst_bf_support;
+	if (api_version() > 2) {
+		ctdp_level->fact_support = info.sst_tf_support & BIT(config_index);
+		ctdp_level->pbf_support = info.sst_bf_support & BIT(config_index);
+	} else {
+		ctdp_level->fact_support = info.sst_tf_support;
+		ctdp_level->pbf_support = info.sst_bf_support;
+	}
+
 	ctdp_level->fact_enabled = !!(info.feature_state & BIT(1));
 	ctdp_level->pbf_enabled = !!(info.feature_state & BIT(0));
 
@@ -221,6 +227,7 @@ static int tpmi_get_ctdp_control(struct isst_id *id, int config_index,
 static int tpmi_get_tdp_info(struct isst_id *id, int config_index,
 			     struct isst_pkg_ctdp_level_info *ctdp_level)
 {
+	struct isst_perf_level_fabric_info fabric_info;
 	struct isst_perf_level_data_info info;
 	int ret;
 
@@ -247,6 +254,17 @@ static int tpmi_get_tdp_info(struct isst_id *id, int config_index,
 	ctdp_level->uncore_p1 = info.p1_fabric_freq_mhz;
 	ctdp_level->uncore_pm = info.pm_fabric_freq_mhz;
 
+	fabric_info.socket_id = id->pkg;
+	fabric_info.power_domain_id = id->punit;
+	fabric_info.level = config_index;
+
+	ret = tpmi_process_ioctl(ISST_IF_GET_PERF_LEVEL_FABRIC_INFO, &fabric_info);
+	if (ret != -1) {
+		ctdp_level->uncore1_p0 = fabric_info.p0_fabric_freq_mhz[1];
+		ctdp_level->uncore1_p1 = fabric_info.p1_fabric_freq_mhz[1];
+		ctdp_level->uncore1_pm = fabric_info.pm_fabric_freq_mhz[1];
+	}
+
 	debug_printf
 	    ("cpu:%d ctdp:%d CONFIG_TDP_GET_TDP_INFO tdp_ratio:%d pkg_tdp:%d ctdp_level->t_proc_hot:%d\n",
 	     id->cpu, config_index, ctdp_level->tdp_ratio, ctdp_level->pkg_tdp,
@@ -323,7 +341,7 @@ static int tpmi_get_get_trls(struct isst_id *id, int config_index,
 	return 0;
 }
 
-static int tpmi_get_get_trl(struct isst_id *id, int level, int config_index,
+static int tpmi_get_get_trl(struct isst_id *id, int config_index, int level,
 			    int *trl)
 {
 	struct isst_pkg_ctdp_level_info ctdp_level;
@@ -434,13 +452,16 @@ static int tpmi_get_pbf_info(struct isst_id *id, int level,
 	return _pbf_get_coremask_info(id, level, pbf_info);
 }
 
+#define FEATURE_ENABLE_WAIT_US	1000
+#define FEATURE_ENABLE_RETRIES	5
+
 static int tpmi_set_pbf_fact_status(struct isst_id *id, int pbf, int enable)
 {
 	struct isst_pkg_ctdp pkg_dev;
 	struct isst_pkg_ctdp_level_info ctdp_level;
 	int current_level;
 	struct isst_perf_feature_control info;
-	int ret;
+	int ret, i;
 
 	ret = isst_get_ctdp_levels(id, &pkg_dev);
 	if (ret)
@@ -485,6 +506,30 @@ static int tpmi_set_pbf_fact_status(struct isst_id *id, int pbf, int enable)
 	if (ret == -1)
 		return ret;
 
+	for (i = 0; i < FEATURE_ENABLE_RETRIES; ++i) {
+
+		usleep(FEATURE_ENABLE_WAIT_US);
+
+		/* Check status */
+		ret = isst_get_ctdp_control(id, current_level, &ctdp_level);
+		if (ret)
+			return ret;
+
+		debug_printf("pbf_enabled:%d fact_enabled:%d\n",
+			     ctdp_level.pbf_enabled, ctdp_level.fact_enabled);
+
+		if (pbf) {
+			if (ctdp_level.pbf_enabled == enable)
+				break;
+		} else {
+			if (ctdp_level.fact_enabled == enable)
+				break;
+		}
+	}
+
+	if (i == FEATURE_ENABLE_RETRIES)
+		return -1;
+
 	return 0;
 }
 
@@ -495,6 +540,7 @@ static int tpmi_get_fact_info(struct isst_id *id, int level, int fact_bucket,
 	int i, j;
 	int ret;
 
+	memset(&info, 0, sizeof(info));
 	info.socket_id = id->pkg;
 	info.power_domain_id = id->punit;
 	info.level = level;
@@ -641,7 +687,8 @@ static int tpmi_pm_qos_config(struct isst_id *id, int enable_clos,
 			      int priority_type)
 {
 	struct isst_core_power info;
-	int i, ret, saved_punit;
+	int cp_state = 0, cp_cap = 0;
+	int i, j, ret, saved_punit;
 
 	info.get_set = 1;
 	info.socket_id = id->pkg;
@@ -661,6 +708,19 @@ static int tpmi_pm_qos_config(struct isst_id *id, int enable_clos,
 				id->punit = saved_punit;
 				return ret;
 			}
+			/* Get status */
+			for (j = 0; j < FEATURE_ENABLE_RETRIES; ++j) {
+				usleep(FEATURE_ENABLE_WAIT_US);
+				ret = tpmi_read_pm_config(id, &cp_state, &cp_cap);
+				debug_printf("ret:%d cp_state:%d enable_clos:%d\n", ret,
+					     cp_state, enable_clos);
+				if (ret || cp_state == enable_clos)
+					break;
+			}
+			if (j == FEATURE_ENABLE_RETRIES) {
+				id->punit = saved_punit;
+				return -1;
+			}
 		}
 	}
 
diff --git a/tools/power/x86/intel-speed-select/isst-core.c b/tools/power/x86/intel-speed-select/isst-core.c
index f55fef4c13a7a..e05561d00458f 100644
--- a/tools/power/x86/intel-speed-select/isst-core.c
+++ b/tools/power/x86/intel-speed-select/isst-core.c
@@ -23,6 +23,7 @@ int isst_set_platform_ops(int api_version)
 		isst_ops = mbox_get_platform_ops();
 		break;
 	case 2:
+	case 3:
 		isst_ops = tpmi_get_platform_ops();
 		break;
 	default:
@@ -282,6 +283,8 @@ int isst_set_trl(struct isst_id *id, unsigned long long trl)
 	return 0;
 }
 
+#define MSR_TRL_FREQ_MULTIPLIER		100
+
 int isst_set_trl_from_current_tdp(struct isst_id *id, unsigned long long trl)
 {
 	unsigned long long msr_trl;
@@ -309,6 +312,10 @@ int isst_set_trl_from_current_tdp(struct isst_id *id, unsigned long long trl)
 		for (i = 0; i < 8; ++i) {
 			unsigned long long _trl = trl[i];
 
+			/* MSR is always in 100 MHz unit */
+			if (isst_get_disp_freq_multiplier() == 1)
+				_trl /= MSR_TRL_FREQ_MULTIPLIER;
+
 			msr_trl |= (_trl << (i * 8));
 		}
 	}
diff --git a/tools/power/x86/intel-speed-select/isst-daemon.c b/tools/power/x86/intel-speed-select/isst-daemon.c
index 12053fa435429..66df21b2b5737 100644
--- a/tools/power/x86/intel-speed-select/isst-daemon.c
+++ b/tools/power/x86/intel-speed-select/isst-daemon.c
@@ -90,7 +90,8 @@ void process_level_change(struct isst_id *id)
 		if (ret)
 			goto use_offline;
 
-		isolate_cpus(id, ctdp_level.core_cpumask_size, ctdp_level.core_cpumask, pkg_dev.current_level);
+		isolate_cpus(id, ctdp_level.core_cpumask_size, ctdp_level.core_cpumask,
+			     pkg_dev.current_level, 0);
 
 		goto free_mask;
 	}
diff --git a/tools/power/x86/intel-speed-select/isst-display.c b/tools/power/x86/intel-speed-select/isst-display.c
index 14c9b037859ac..e4884eb028379 100644
--- a/tools/power/x86/intel-speed-select/isst-display.c
+++ b/tools/power/x86/intel-speed-select/isst-display.c
@@ -172,24 +172,43 @@ static int print_package_info(struct isst_id *id, FILE *outf)
 	int level = 1;
 
 	if (out_format_is_json()) {
-		if (api_version() > 1)
-			snprintf(header, sizeof(header), "package-%d:die-%d:powerdomain-%d:cpu-%d",
-				 id->pkg, id->die, id->punit, id->cpu);
-		else
+		if (api_version() > 1) {
+			if (id->die < 0 && id->cpu < 0)
+				snprintf(header, sizeof(header),
+					 "package-%d:die-IO:powerdomain-%d:cpu-None",
+					 id->pkg, id->punit);
+			else if (id->cpu < 0)
+				snprintf(header, sizeof(header),
+					 "package-%d:die-%d:powerdomain-%d:cpu-None",
+					 id->pkg, id->die, id->punit);
+			else
+				snprintf(header, sizeof(header),
+					 "package-%d:die-%d:powerdomain-%d:cpu-%d",
+					 id->pkg, id->die, id->punit, id->cpu);
+		} else {
 			snprintf(header, sizeof(header), "package-%d:die-%d:cpu-%d",
 				 id->pkg, id->die, id->cpu);
+		}
 		format_and_print(outf, level, header, NULL);
 		return 1;
 	}
 	snprintf(header, sizeof(header), "package-%d", id->pkg);
 	format_and_print(outf, level++, header, NULL);
-	snprintf(header, sizeof(header), "die-%d", id->die);
+	if (id->die < 0)
+		snprintf(header, sizeof(header), "die-IO");
+	else
+		snprintf(header, sizeof(header), "die-%d", id->die);
 	format_and_print(outf, level++, header, NULL);
 	if (api_version() > 1) {
 		snprintf(header, sizeof(header), "powerdomain-%d", id->punit);
 		format_and_print(outf, level++, header, NULL);
 	}
-	snprintf(header, sizeof(header), "cpu-%d", id->cpu);
+
+	if (id->cpu < 0)
+		snprintf(header, sizeof(header), "cpu-None");
+	else
+		snprintf(header, sizeof(header), "cpu-%d", id->cpu);
+
 	format_and_print(outf, level, header, NULL);
 
 	return level;
@@ -199,8 +218,8 @@ static void _isst_pbf_display_information(struct isst_id *id, FILE *outf, int le
 					  struct isst_pbf_info *pbf_info,
 					  int disp_level)
 {
-	char header[256];
-	char value[512];
+	static char header[256];
+	static char value[1024];
 
 	snprintf(header, sizeof(header), "speed-select-base-freq-properties");
 	format_and_print(outf, disp_level, header, NULL);
@@ -338,8 +357,8 @@ void isst_ctdp_display_core_info(struct isst_id *id, FILE *outf, char *prefix,
 void isst_ctdp_display_information(struct isst_id *id, FILE *outf, int tdp_level,
 				   struct isst_pkg_ctdp *pkg_dev)
 {
-	char header[256];
-	char value[512];
+	static char header[256];
+	static char value[1024];
 	static int level;
 	int trl_max_levels = isst_get_trl_max_levels();
 	int i;
@@ -441,6 +460,26 @@ void isst_ctdp_display_information(struct isst_id *id, FILE *outf, int tdp_level
 			format_and_print(outf, level + 2, header, value);
 		}
 
+		if (ctdp_level->uncore1_p1) {
+			snprintf(header, sizeof(header), "uncore-1-frequency-base(MHz)");
+			snprintf(value, sizeof(value), "%d",
+				 ctdp_level->uncore1_p1 * isst_get_disp_freq_multiplier());
+			format_and_print(outf, level + 2, header, value);
+		}
+		if (ctdp_level->uncore1_pm) {
+			snprintf(header, sizeof(header), "uncore-1-frequency-min(MHz)");
+			snprintf(value, sizeof(value), "%d",
+				 ctdp_level->uncore1_pm * isst_get_disp_freq_multiplier());
+			format_and_print(outf, level + 2, header, value);
+		}
+
+		if (ctdp_level->uncore1_p0) {
+			snprintf(header, sizeof(header), "uncore-1-frequency-max(MHz)");
+			snprintf(value, sizeof(value), "%d",
+				 ctdp_level->uncore1_p0 * isst_get_disp_freq_multiplier());
+			format_and_print(outf, level + 2, header, value);
+		}
+
 		if (ctdp_level->mem_freq) {
 			snprintf(header, sizeof(header), "max-mem-frequency(MHz)");
 			snprintf(value, sizeof(value), "%d",
diff --git a/tools/power/x86/intel-speed-select/isst.h b/tools/power/x86/intel-speed-select/isst.h
index 8def22dec4a27..960f647cfc2d9 100644
--- a/tools/power/x86/intel-speed-select/isst.h
+++ b/tools/power/x86/intel-speed-select/isst.h
@@ -80,7 +80,7 @@
 #define DISP_FREQ_MULTIPLIER 100
 
 #define MAX_PACKAGE_COUNT	32
-#define MAX_DIE_PER_PACKAGE	2
+#define MAX_DIE_PER_PACKAGE	16
 #define MAX_PUNIT_PER_DIE	8
 
 /* Unified structure to specific a CPU or a Power Domain */
@@ -147,6 +147,9 @@ struct isst_pkg_ctdp_level_info {
 	int uncore_p0;
 	int uncore_p1;
 	int uncore_pm;
+	int uncore1_p0;
+	int uncore1_p1;
+	int uncore1_pm;
 	int sse_p1;
 	int avx2_p1;
 	int avx512_p1;
@@ -318,7 +321,8 @@ extern struct isst_platform_ops *tpmi_get_platform_ops(void);
 
 /* Cgroup related interface */
 extern int enable_cpuset_controller(void);
-extern int isolate_cpus(struct isst_id *id, int mask_size, cpu_set_t *cpu_mask, int level);
+extern int isolate_cpus(struct isst_id *id, int mask_size, cpu_set_t *cpu_mask,
+			int level, int cpu_0_only);
 extern int use_cgroupv2(void);
 
 #endif