* [GIT pull] perf updates for 5.0
2019-02-03 16:16 [GIT pull] efi fix for 5.0 Thomas Gleixner
@ 2019-02-03 16:16 ` Thomas Gleixner
2019-02-03 17:50 ` pr-tracker-bot
2019-02-03 16:16 ` [GIT pull] cpu hotplug " Thomas Gleixner
` (2 subsequent siblings)
3 siblings, 1 reply; 8+ messages in thread
From: Thomas Gleixner @ 2019-02-03 16:16 UTC (permalink / raw)
To: Linus Torvalds; +Cc: linux-kernel, x86
Linus,
please pull the latest perf-urgent-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf-urgent-for-linus
A pile of perf updates:
- Fix the broken sanity check in the /proc/sys/kernel/perf_cpu_time_max_percent
write handler.
- Cure a perf script crash which caused by an unitinialized data structure.
- Highlight the hottest instruction in perf top and not a random one.
- Cure yet another clang issue when building perf python
- Handle topology entries with no CPU correctly in the tools
- Handle perf data which contains both tracepoints and performance
counter entries correctly.
- Add a missing NULL pointer check in perf ordered_events_free().
Thanks,
tglx
------------------>
Andi Kleen (1):
perf script: Fix crash with printing mixed trace point and other events
Arnaldo Carvalho de Melo (1):
perf python: Remove -fstack-clash-protection when building with some clang versions
He Kuang (1):
perf top: Fix wrong hottest instruction highlighted
Jiri Olsa (1):
perf ordered_events: Fix crash in ordered_events__free
Stephane Eranian (2):
perf core: Fix perf_proc_update_handler() bug
perf tools: Handle TOPOLOGY headers with no CPU
Tony Jones (1):
perf script: Fix crash when processing recorded stat data
kernel/events/core.c | 14 +++++++-------
tools/perf/builtin-script.c | 9 +++------
tools/perf/ui/browsers/annotate.c | 16 ++++++++++------
tools/perf/util/cpumap.c | 11 +++++++++--
tools/perf/util/ordered-events.c | 6 ++++--
tools/perf/util/setup.py | 2 ++
6 files changed, 35 insertions(+), 23 deletions(-)
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 3cd13a30f732..e5ede6918050 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -436,18 +436,18 @@ int perf_proc_update_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp,
loff_t *ppos)
{
- int ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
-
- if (ret || !write)
- return ret;
-
+ int ret;
+ int perf_cpu = sysctl_perf_cpu_time_max_percent;
/*
* If throttling is disabled don't allow the write:
*/
- if (sysctl_perf_cpu_time_max_percent == 100 ||
- sysctl_perf_cpu_time_max_percent == 0)
+ if (write && (perf_cpu == 100 || perf_cpu == 0))
return -EINVAL;
+ ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
+ if (ret || !write)
+ return ret;
+
max_samples_per_tick = DIV_ROUND_UP(sysctl_perf_event_sample_rate, HZ);
perf_sample_period_ns = NSEC_PER_SEC / sysctl_perf_event_sample_rate;
update_perf_cpu_limits();
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index d079f36d342d..ac221f137ed2 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -1681,13 +1681,8 @@ static void perf_sample__fprint_metric(struct perf_script *script,
.force_header = false,
};
struct perf_evsel *ev2;
- static bool init;
u64 val;
- if (!init) {
- perf_stat__init_shadow_stats();
- init = true;
- }
if (!evsel->stats)
perf_evlist__alloc_stats(script->session->evlist, false);
if (evsel_script(evsel->leader)->gnum++ == 0)
@@ -1794,7 +1789,7 @@ static void process_event(struct perf_script *script,
return;
}
- if (PRINT_FIELD(TRACE)) {
+ if (PRINT_FIELD(TRACE) && sample->raw_data) {
event_format__fprintf(evsel->tp_format, sample->cpu,
sample->raw_data, sample->raw_size, fp);
}
@@ -2359,6 +2354,8 @@ static int __cmd_script(struct perf_script *script)
signal(SIGINT, sig_handler);
+ perf_stat__init_shadow_stats();
+
/* override event processing functions */
if (script->show_task_events) {
script->tool.comm = process_comm_event;
diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 1d00e5ec7906..82e16bf84466 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -224,20 +224,24 @@ static unsigned int annotate_browser__refresh(struct ui_browser *browser)
return ret;
}
-static int disasm__cmp(struct annotation_line *a, struct annotation_line *b)
+static double disasm__cmp(struct annotation_line *a, struct annotation_line *b,
+ int percent_type)
{
int i;
for (i = 0; i < a->data_nr; i++) {
- if (a->data[i].percent == b->data[i].percent)
+ if (a->data[i].percent[percent_type] == b->data[i].percent[percent_type])
continue;
- return a->data[i].percent < b->data[i].percent;
+ return a->data[i].percent[percent_type] -
+ b->data[i].percent[percent_type];
}
return 0;
}
-static void disasm_rb_tree__insert(struct rb_root *root, struct annotation_line *al)
+static void disasm_rb_tree__insert(struct annotate_browser *browser,
+ struct annotation_line *al)
{
+ struct rb_root *root = &browser->entries;
struct rb_node **p = &root->rb_node;
struct rb_node *parent = NULL;
struct annotation_line *l;
@@ -246,7 +250,7 @@ static void disasm_rb_tree__insert(struct rb_root *root, struct annotation_line
parent = *p;
l = rb_entry(parent, struct annotation_line, rb_node);
- if (disasm__cmp(al, l))
+ if (disasm__cmp(al, l, browser->opts->percent_type) < 0)
p = &(*p)->rb_left;
else
p = &(*p)->rb_right;
@@ -329,7 +333,7 @@ static void annotate_browser__calc_percent(struct annotate_browser *browser,
RB_CLEAR_NODE(&pos->al.rb_node);
continue;
}
- disasm_rb_tree__insert(&browser->entries, &pos->al);
+ disasm_rb_tree__insert(browser, &pos->al);
}
pthread_mutex_unlock(¬es->lock);
diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index 1ccbd3342069..383674f448fc 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -134,7 +134,12 @@ struct cpu_map *cpu_map__new(const char *cpu_list)
if (!cpu_list)
return cpu_map__read_all_cpu_map();
- if (!isdigit(*cpu_list))
+ /*
+ * must handle the case of empty cpumap to cover
+ * TOPOLOGY header for NUMA nodes with no CPU
+ * ( e.g., because of CPU hotplug)
+ */
+ if (!isdigit(*cpu_list) && *cpu_list != '\0')
goto out;
while (isdigit(*cpu_list)) {
@@ -181,8 +186,10 @@ struct cpu_map *cpu_map__new(const char *cpu_list)
if (nr_cpus > 0)
cpus = cpu_map__trim_new(nr_cpus, tmp_cpus);
- else
+ else if (*cpu_list != '\0')
cpus = cpu_map__default_new();
+ else
+ cpus = cpu_map__dummy_new();
invalid:
free(tmp_cpus);
out:
diff --git a/tools/perf/util/ordered-events.c b/tools/perf/util/ordered-events.c
index 897589507d97..ea523d3b248f 100644
--- a/tools/perf/util/ordered-events.c
+++ b/tools/perf/util/ordered-events.c
@@ -391,8 +391,10 @@ void ordered_events__free(struct ordered_events *oe)
* Current buffer might not have all the events allocated
* yet, we need to free only allocated ones ...
*/
- list_del(&oe->buffer->list);
- ordered_events_buffer__free(oe->buffer, oe->buffer_idx, oe);
+ if (oe->buffer) {
+ list_del(&oe->buffer->list);
+ ordered_events_buffer__free(oe->buffer, oe->buffer_idx, oe);
+ }
/* ... and continue with the rest */
list_for_each_entry_safe(buffer, tmp, &oe->to_free, list) {
diff --git a/tools/perf/util/setup.py b/tools/perf/util/setup.py
index 63f758c655d5..64d1f36dee99 100644
--- a/tools/perf/util/setup.py
+++ b/tools/perf/util/setup.py
@@ -17,6 +17,8 @@ if cc == "clang":
vars[var] = sub("-mcet", "", vars[var])
if not clang_has_option("-fcf-protection"):
vars[var] = sub("-fcf-protection", "", vars[var])
+ if not clang_has_option("-fstack-clash-protection"):
+ vars[var] = sub("-fstack-clash-protection", "", vars[var])
from distutils.core import setup, Extension
^ permalink raw reply [flat|nested] 8+ messages in thread* [GIT pull] cpu hotplug updates for 5.0
2019-02-03 16:16 [GIT pull] efi fix for 5.0 Thomas Gleixner
2019-02-03 16:16 ` [GIT pull] perf updates " Thomas Gleixner
@ 2019-02-03 16:16 ` Thomas Gleixner
2019-02-03 17:50 ` pr-tracker-bot
2019-02-03 16:16 ` [GIT pull] x86 " Thomas Gleixner
2019-02-03 17:50 ` [GIT pull] efi fix " pr-tracker-bot
3 siblings, 1 reply; 8+ messages in thread
From: Thomas Gleixner @ 2019-02-03 16:16 UTC (permalink / raw)
To: Linus Torvalds; +Cc: linux-kernel, x86
Linus,
please pull the latest smp-urgent-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git smp-urgent-for-linus
Two fixes for the cpu hotplug machinery:
- Replace the overly clever 'SMT disabled by BIOS' detection logic as it
breaks KVM scenarios and prevents speculation control updates when the
Hyperthreads are brought online late after boot.
- Remove a redundant invocation of the speculation control update function.
Thanks,
tglx
------------------>
Josh Poimboeuf (1):
cpu/hotplug: Fix "SMT disabled by BIOS" detection for KVM
Zhenzhong Duan (1):
x86/speculation: Remove redundant arch_smt_update() invocation
arch/x86/kernel/cpu/bugs.c | 2 +-
arch/x86/kvm/vmx/vmx.c | 3 ++-
include/linux/cpu.h | 2 --
kernel/cpu.c | 38 +++++---------------------------------
kernel/sched/fair.c | 1 +
kernel/smp.c | 2 --
6 files changed, 9 insertions(+), 39 deletions(-)
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 1de0f4170178..01874d54f4fd 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -71,7 +71,7 @@ void __init check_bugs(void)
* identify_boot_cpu() initialized SMT support information, let the
* core code know.
*/
- cpu_smt_check_topology_early();
+ cpu_smt_check_topology();
if (!IS_ENABLED(CONFIG_SMP)) {
pr_info("CPU: ");
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 4341175339f3..95d618045001 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -26,6 +26,7 @@
#include <linux/mod_devicetable.h>
#include <linux/mm.h>
#include <linux/sched.h>
+#include <linux/sched/smt.h>
#include <linux/slab.h>
#include <linux/tboot.h>
#include <linux/trace_events.h>
@@ -6823,7 +6824,7 @@ static int vmx_vm_init(struct kvm *kvm)
* Warn upon starting the first VM in a potentially
* insecure environment.
*/
- if (cpu_smt_control == CPU_SMT_ENABLED)
+ if (sched_smt_active())
pr_warn_once(L1TF_MSG_SMT);
if (l1tf_vmx_mitigation == VMENTER_L1D_FLUSH_NEVER)
pr_warn_once(L1TF_MSG_L1D);
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 218df7f4d3e1..5041357d0297 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -180,12 +180,10 @@ enum cpuhp_smt_control {
#if defined(CONFIG_SMP) && defined(CONFIG_HOTPLUG_SMT)
extern enum cpuhp_smt_control cpu_smt_control;
extern void cpu_smt_disable(bool force);
-extern void cpu_smt_check_topology_early(void);
extern void cpu_smt_check_topology(void);
#else
# define cpu_smt_control (CPU_SMT_ENABLED)
static inline void cpu_smt_disable(bool force) { }
-static inline void cpu_smt_check_topology_early(void) { }
static inline void cpu_smt_check_topology(void) { }
#endif
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 91d5c38eb7e5..d1c6d152da89 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -376,9 +376,6 @@ void __weak arch_smt_update(void) { }
#ifdef CONFIG_HOTPLUG_SMT
enum cpuhp_smt_control cpu_smt_control __read_mostly = CPU_SMT_ENABLED;
-EXPORT_SYMBOL_GPL(cpu_smt_control);
-
-static bool cpu_smt_available __read_mostly;
void __init cpu_smt_disable(bool force)
{
@@ -397,25 +394,11 @@ void __init cpu_smt_disable(bool force)
/*
* The decision whether SMT is supported can only be done after the full
- * CPU identification. Called from architecture code before non boot CPUs
- * are brought up.
- */
-void __init cpu_smt_check_topology_early(void)
-{
- if (!topology_smt_supported())
- cpu_smt_control = CPU_SMT_NOT_SUPPORTED;
-}
-
-/*
- * If SMT was disabled by BIOS, detect it here, after the CPUs have been
- * brought online. This ensures the smt/l1tf sysfs entries are consistent
- * with reality. cpu_smt_available is set to true during the bringup of non
- * boot CPUs when a SMT sibling is detected. Note, this may overwrite
- * cpu_smt_control's previous setting.
+ * CPU identification. Called from architecture code.
*/
void __init cpu_smt_check_topology(void)
{
- if (!cpu_smt_available)
+ if (!topology_smt_supported())
cpu_smt_control = CPU_SMT_NOT_SUPPORTED;
}
@@ -428,18 +411,10 @@ early_param("nosmt", smt_cmdline_disable);
static inline bool cpu_smt_allowed(unsigned int cpu)
{
- if (topology_is_primary_thread(cpu))
+ if (cpu_smt_control == CPU_SMT_ENABLED)
return true;
- /*
- * If the CPU is not a 'primary' thread and the booted_once bit is
- * set then the processor has SMT support. Store this information
- * for the late check of SMT support in cpu_smt_check_topology().
- */
- if (per_cpu(cpuhp_state, cpu).booted_once)
- cpu_smt_available = true;
-
- if (cpu_smt_control == CPU_SMT_ENABLED)
+ if (topology_is_primary_thread(cpu))
return true;
/*
@@ -2090,10 +2065,8 @@ static int cpuhp_smt_disable(enum cpuhp_smt_control ctrlval)
*/
cpuhp_offline_cpu_device(cpu);
}
- if (!ret) {
+ if (!ret)
cpu_smt_control = ctrlval;
- arch_smt_update();
- }
cpu_maps_update_done();
return ret;
}
@@ -2104,7 +2077,6 @@ static int cpuhp_smt_enable(void)
cpu_maps_update_begin();
cpu_smt_control = CPU_SMT_ENABLED;
- arch_smt_update();
for_each_present_cpu(cpu) {
/* Skip online CPUs and CPUs on offline nodes */
if (cpu_online(cpu) || !node_online(cpu_to_node(cpu)))
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 50aa2aba69bd..310d0637fe4b 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5980,6 +5980,7 @@ static inline int find_idlest_cpu(struct sched_domain *sd, struct task_struct *p
#ifdef CONFIG_SCHED_SMT
DEFINE_STATIC_KEY_FALSE(sched_smt_present);
+EXPORT_SYMBOL_GPL(sched_smt_present);
static inline void set_idle_cores(int cpu, int val)
{
diff --git a/kernel/smp.c b/kernel/smp.c
index 163c451af42e..f4cf1b0bb3b8 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -584,8 +584,6 @@ void __init smp_init(void)
num_nodes, (num_nodes > 1 ? "s" : ""),
num_cpus, (num_cpus > 1 ? "s" : ""));
- /* Final decision about SMT support */
- cpu_smt_check_topology();
/* Any cleanup work */
smp_cpus_done(setup_max_cpus);
}
^ permalink raw reply [flat|nested] 8+ messages in thread* [GIT pull] x86 updates for 5.0
2019-02-03 16:16 [GIT pull] efi fix for 5.0 Thomas Gleixner
2019-02-03 16:16 ` [GIT pull] perf updates " Thomas Gleixner
2019-02-03 16:16 ` [GIT pull] cpu hotplug " Thomas Gleixner
@ 2019-02-03 16:16 ` Thomas Gleixner
2019-02-03 17:50 ` pr-tracker-bot
2019-02-03 17:50 ` [GIT pull] efi fix " pr-tracker-bot
3 siblings, 1 reply; 8+ messages in thread
From: Thomas Gleixner @ 2019-02-03 16:16 UTC (permalink / raw)
To: Linus Torvalds; +Cc: linux-kernel, x86
Linus,
please pull the latest x86-urgent-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-urgent-for-linus
A few updates for x86:
- Fix an unintended sign extension issue in the fault handling code
- Rename the new resource control config switch so it's less confusing
- Avoid setting up EFI info in kexec when the EFI runtime is disabled.
- Fix the microcode version check in the AMD microcode loader so it only
loads higher version numbers and never downgrades
- Set EFER.LME in the 32bit trampoline before returning to long mode to
handle older AMD/KVM behaviour properly.
- Add Darren and Andy as x86/platform reviewers.
Thanks,
tglx
------------------>
Borislav Petkov (1):
MAINTAINERS: Add Andy and Darren as arch/x86/platform/ reviewers
Colin Ian King (1):
x86/fault: Fix sign-extend unintended sign extension
Johannes Weiner (1):
x86/resctrl: Avoid confusion over the new X86_RESCTRL config
Kairui Song (1):
x86/kexec: Don't setup EFI info if EFI runtime is not enabled
Kan Liang (1):
x86/cpu: Add Atom Tremont (Jacobsville)
Thomas Lendacky (1):
x86/microcode/amd: Don't falsely trick the late loading mechanism
Wei Huang (1):
x86/boot/compressed/64: Set EFER.LME=1 in 32-bit trampoline before returning to long mode
Documentation/x86/resctrl_ui.txt | 2 +-
MAINTAINERS | 9 +++++++++
arch/x86/Kconfig | 6 +++---
arch/x86/boot/compressed/head_64.S | 8 ++++++++
arch/x86/boot/compressed/pgtable.h | 2 +-
arch/x86/include/asm/intel-family.h | 3 ++-
arch/x86/include/asm/resctrl_sched.h | 4 ++--
arch/x86/kernel/cpu/Makefile | 2 +-
arch/x86/kernel/cpu/microcode/amd.c | 2 +-
arch/x86/kernel/cpu/resctrl/Makefile | 4 ++--
arch/x86/kernel/kexec-bzimage64.c | 3 +++
arch/x86/mm/fault.c | 2 +-
include/linux/sched.h | 2 +-
13 files changed, 35 insertions(+), 14 deletions(-)
diff --git a/Documentation/x86/resctrl_ui.txt b/Documentation/x86/resctrl_ui.txt
index e8e8d14d3c4e..c1f95b59e14d 100644
--- a/Documentation/x86/resctrl_ui.txt
+++ b/Documentation/x86/resctrl_ui.txt
@@ -9,7 +9,7 @@ Fenghua Yu <fenghua.yu@intel.com>
Tony Luck <tony.luck@intel.com>
Vikas Shivappa <vikas.shivappa@intel.com>
-This feature is enabled by the CONFIG_X86_RESCTRL and the x86 /proc/cpuinfo
+This feature is enabled by the CONFIG_X86_CPU_RESCTRL and the x86 /proc/cpuinfo
flag bits:
RDT (Resource Director Technology) Allocation - "rdt_a"
CAT (Cache Allocation Technology) - "cat_l3", "cat_l2"
diff --git a/MAINTAINERS b/MAINTAINERS
index 32d444476a90..a98a7325df8c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -16631,6 +16631,15 @@ S: Maintained
F: drivers/platform/x86/
F: drivers/platform/olpc/
+X86 PLATFORM DRIVERS - ARCH
+R: Darren Hart <dvhart@infradead.org>
+R: Andy Shevchenko <andy@infradead.org>
+L: platform-driver-x86@vger.kernel.org
+L: x86@kernel.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/core
+S: Maintained
+F: arch/x86/platform
+
X86 VDSO
M: Andy Lutomirski <luto@kernel.org>
L: linux-kernel@vger.kernel.org
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 26387c7bf305..68261430fe6e 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -446,12 +446,12 @@ config RETPOLINE
branches. Requires a compiler with -mindirect-branch=thunk-extern
support for full protection. The kernel may run slower.
-config X86_RESCTRL
- bool "Resource Control support"
+config X86_CPU_RESCTRL
+ bool "x86 CPU resource control support"
depends on X86 && (CPU_SUP_INTEL || CPU_SUP_AMD)
select KERNFS
help
- Enable Resource Control support.
+ Enable x86 CPU resource control support.
Provide support for the allocation and monitoring of system resources
usage by the CPU.
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index 64037895b085..f105ae8651c9 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -600,6 +600,14 @@ ENTRY(trampoline_32bit_src)
leal TRAMPOLINE_32BIT_PGTABLE_OFFSET(%ecx), %eax
movl %eax, %cr3
3:
+ /* Set EFER.LME=1 as a precaution in case hypervsior pulls the rug */
+ pushl %ecx
+ movl $MSR_EFER, %ecx
+ rdmsr
+ btsl $_EFER_LME, %eax
+ wrmsr
+ popl %ecx
+
/* Enable PAE and LA57 (if required) paging modes */
movl $X86_CR4_PAE, %eax
cmpl $0, %edx
diff --git a/arch/x86/boot/compressed/pgtable.h b/arch/x86/boot/compressed/pgtable.h
index 91f75638f6e6..6ff7e81b5628 100644
--- a/arch/x86/boot/compressed/pgtable.h
+++ b/arch/x86/boot/compressed/pgtable.h
@@ -6,7 +6,7 @@
#define TRAMPOLINE_32BIT_PGTABLE_OFFSET 0
#define TRAMPOLINE_32BIT_CODE_OFFSET PAGE_SIZE
-#define TRAMPOLINE_32BIT_CODE_SIZE 0x60
+#define TRAMPOLINE_32BIT_CODE_SIZE 0x70
#define TRAMPOLINE_32BIT_STACK_END TRAMPOLINE_32BIT_SIZE
diff --git a/arch/x86/include/asm/intel-family.h b/arch/x86/include/asm/intel-family.h
index 0dd6b0f4000e..d9a9993af882 100644
--- a/arch/x86/include/asm/intel-family.h
+++ b/arch/x86/include/asm/intel-family.h
@@ -6,7 +6,7 @@
* "Big Core" Processors (Branded as Core, Xeon, etc...)
*
* The "_X" parts are generally the EP and EX Xeons, or the
- * "Extreme" ones, like Broadwell-E.
+ * "Extreme" ones, like Broadwell-E, or Atom microserver.
*
* While adding a new CPUID for a new microarchitecture, add a new
* group to keep logically sorted out in chronological order. Within
@@ -71,6 +71,7 @@
#define INTEL_FAM6_ATOM_GOLDMONT 0x5C /* Apollo Lake */
#define INTEL_FAM6_ATOM_GOLDMONT_X 0x5F /* Denverton */
#define INTEL_FAM6_ATOM_GOLDMONT_PLUS 0x7A /* Gemini Lake */
+#define INTEL_FAM6_ATOM_TREMONT_X 0x86 /* Jacobsville */
/* Xeon Phi */
diff --git a/arch/x86/include/asm/resctrl_sched.h b/arch/x86/include/asm/resctrl_sched.h
index 40ebddde6ac2..f6b7fe2833cc 100644
--- a/arch/x86/include/asm/resctrl_sched.h
+++ b/arch/x86/include/asm/resctrl_sched.h
@@ -2,7 +2,7 @@
#ifndef _ASM_X86_RESCTRL_SCHED_H
#define _ASM_X86_RESCTRL_SCHED_H
-#ifdef CONFIG_X86_RESCTRL
+#ifdef CONFIG_X86_CPU_RESCTRL
#include <linux/sched.h>
#include <linux/jump_label.h>
@@ -88,6 +88,6 @@ static inline void resctrl_sched_in(void)
static inline void resctrl_sched_in(void) {}
-#endif /* CONFIG_X86_RESCTRL */
+#endif /* CONFIG_X86_CPU_RESCTRL */
#endif /* _ASM_X86_RESCTRL_SCHED_H */
diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index b6fa0869f7aa..cfd24f9f7614 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -39,7 +39,7 @@ obj-$(CONFIG_CPU_SUP_UMC_32) += umc.o
obj-$(CONFIG_X86_MCE) += mce/
obj-$(CONFIG_MTRR) += mtrr/
obj-$(CONFIG_MICROCODE) += microcode/
-obj-$(CONFIG_X86_RESCTRL) += resctrl/
+obj-$(CONFIG_X86_CPU_RESCTRL) += resctrl/
obj-$(CONFIG_X86_LOCAL_APIC) += perfctr-watchdog.o
diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c
index 51adde0a0f1a..e1f3ba19ba54 100644
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -855,7 +855,7 @@ load_microcode_amd(bool save, u8 family, const u8 *data, size_t size)
if (!p) {
return ret;
} else {
- if (boot_cpu_data.microcode == p->patch_id)
+ if (boot_cpu_data.microcode >= p->patch_id)
return ret;
ret = UCODE_NEW;
diff --git a/arch/x86/kernel/cpu/resctrl/Makefile b/arch/x86/kernel/cpu/resctrl/Makefile
index 1cabe6fd8e11..4a06c37b9cf1 100644
--- a/arch/x86/kernel/cpu/resctrl/Makefile
+++ b/arch/x86/kernel/cpu/resctrl/Makefile
@@ -1,4 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
-obj-$(CONFIG_X86_RESCTRL) += core.o rdtgroup.o monitor.o
-obj-$(CONFIG_X86_RESCTRL) += ctrlmondata.o pseudo_lock.o
+obj-$(CONFIG_X86_CPU_RESCTRL) += core.o rdtgroup.o monitor.o
+obj-$(CONFIG_X86_CPU_RESCTRL) += ctrlmondata.o pseudo_lock.o
CFLAGS_pseudo_lock.o = -I$(src)
diff --git a/arch/x86/kernel/kexec-bzimage64.c b/arch/x86/kernel/kexec-bzimage64.c
index 0d5efa34f359..53917a3ebf94 100644
--- a/arch/x86/kernel/kexec-bzimage64.c
+++ b/arch/x86/kernel/kexec-bzimage64.c
@@ -167,6 +167,9 @@ setup_efi_state(struct boot_params *params, unsigned long params_load_addr,
struct efi_info *current_ei = &boot_params.efi_info;
struct efi_info *ei = ¶ms->efi_info;
+ if (!efi_enabled(EFI_RUNTIME_SERVICES))
+ return 0;
+
if (!current_ei->efi_memmap_size)
return 0;
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 2ff25ad33233..9d5c75f02295 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -595,7 +595,7 @@ static void show_ldttss(const struct desc_ptr *gdt, const char *name, u16 index)
return;
}
- addr = desc.base0 | (desc.base1 << 16) | (desc.base2 << 24);
+ addr = desc.base0 | (desc.base1 << 16) | ((unsigned long)desc.base2 << 24);
#ifdef CONFIG_X86_64
addr |= ((u64)desc.base3 << 32);
#endif
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 224666226e87..8c328b14c424 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -995,7 +995,7 @@ struct task_struct {
/* cg_list protected by css_set_lock and tsk->alloc_lock: */
struct list_head cg_list;
#endif
-#ifdef CONFIG_X86_RESCTRL
+#ifdef CONFIG_X86_CPU_RESCTRL
u32 closid;
u32 rmid;
#endif
^ permalink raw reply [flat|nested] 8+ messages in thread* Re: [GIT pull] efi fix for 5.0
2019-02-03 16:16 [GIT pull] efi fix for 5.0 Thomas Gleixner
` (2 preceding siblings ...)
2019-02-03 16:16 ` [GIT pull] x86 " Thomas Gleixner
@ 2019-02-03 17:50 ` pr-tracker-bot
3 siblings, 0 replies; 8+ messages in thread
From: pr-tracker-bot @ 2019-02-03 17:50 UTC (permalink / raw)
To: Thomas Gleixner; +Cc: Linus Torvalds, linux-kernel, x86
The pull request you sent on Sun, 03 Feb 2019 17:16:05 +0100:
> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git efi-urgent-for-linus
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/89401be6580eab6419bab1f553144131e7a335dc
Thank you!
--
Deet-doot-dot, I am a bot.
https://korg.wiki.kernel.org/userdoc/prtracker
^ permalink raw reply [flat|nested] 8+ messages in thread