Pawan Gupta aaa65d17ee x86/tsx: Add a feature bit for TSX control MSR support ... Support for the TSX control MSR is enumerated in MSR_IA32_ARCH_CAPABILITIES. This is different from how other CPU features are enumerated i.e. via CPUID. Currently, a call to tsx_ctrl_is_supported() is required for enumerating the feature. In the absence of a feature bit for TSX control, any code that relies on checking feature bits directly will not work. In preparation for adding a feature bit check in MSR save/restore during suspend/resume, set a new feature bit X86_FEATURE_TSX_CTRL when MSR_IA32_TSX_CTRL is present. Also make tsx_ctrl_is_supported() use the new feature bit to avoid any overhead of reading the MSR. [ bp: Remove tsx_ctrl_is_supported(), add room for two more feature bits in word 11 which are coming up in the next merge window. ] Suggested-by: Andrew Cooper <andrew.cooper3@citrix.com> Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com> Cc: <stable@kernel.org> Link: https://lore.kernel.org/r/de619764e1d98afbb7a5fa58424f1278ede37b45.1668539735.git.pawan.kumar.gupta@linux.intel.com		2022-11-21 14:08:20 +01:00
..
acpi	ACPI: CPPC: Fix enabling CPPC on AMD systems with shared memory	2022-07-13 21:13:14 +02:00
apic	x86/apic: Don't disable x2APIC if locked	2022-08-31 14:34:11 -07:00
cpu	x86/tsx: Add a feature bit for TSX control MSR support	2022-11-21 14:08:20 +01:00
fpu	x86/fpu: Drop fpregs lock before inheriting FPU permissions	2022-11-10 16:57:38 +01:00
kprobes	x86: kprobes: Remove unused macro stack_addr	2022-09-27 14:48:26 -04:00
.gitignore
alternative.c	- Make sure an INT3 is slapped after every unconditional retpoline JMP	2022-10-04 09:46:22 -07:00
amd_gart_64.c	x86: Fix various duplicate-word comment typos	2022-08-15 19:17:52 +02:00
amd_nb.c	x86/amd_nb: Add AMD PCI IDs for SMN communication	2022-07-20 17:35:40 +02:00
aperture_64.c	x86: Fix various duplicate-word comment typos	2022-08-15 19:17:52 +02:00
apm_32.c	x86/ibt: Disable IBT around firmware	2022-03-15 10:32:40 +01:00
asm-offsets_32.c	x86/stackprotector/32: Make the canary into a regular percpu variable	2021-03-08 13:19:05 +01:00
asm-offsets_64.c	KVM: x86: Support the vCPU preemption check with nopvspin and realtime hint	2022-04-02 05:41:21 -04:00
asm-offsets.c	KVM: x86: use a separate asm-offsets.c file	2022-11-09 12:10:17 -05:00
audit_64.c	audit: add support for the openat2 syscall	2021-10-01 16:52:48 -04:00
bootflag.c
cfi.c	x86: Add support for CONFIG_CFI_CLANG	2022-09-26 10:13:16 -07:00
check.c
cpuid.c
crash_core_32.c
crash_core_64.c
crash_dump_32.c	vmcore: convert copy_oldmem_page() to take an iov_iter	2022-04-29 14:37:59 -07:00
crash_dump_64.c	vmcore: convert read_from_oldmem() to take an iov_iter	2022-04-29 14:37:59 -07:00
crash.c	x86/crash: Fix minor typo/bug in debug message	2022-04-13 19:39:54 +02:00
devicetree.c	Devicetree updates for v5.16:	2021-11-02 22:22:13 -07:00
doublefault_32.c	exit/doublefault: Remove apparently bogus comment about rewind_stack_do_exit	2021-10-20 13:09:43 -05:00
dumpstack_32.c
dumpstack_64.c	x86/mm/64: Improve stack overflow warnings	2021-09-21 13:57:43 +02:00
dumpstack.c	- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in	2022-10-10 17:53:04 -07:00
e820.c	x86/kexec: Carry forward IMA measurement log on kexec	2022-07-01 15:22:16 +02:00
early_printk.c	x86/earlyprintk: Clean up pciserial	2022-08-29 12:19:25 +02:00
early-quirks.c	drm/i915/rpl-p: Add PCI IDs	2022-04-19 17:14:09 -07:00
ebda.c
eisa.c
espfix_64.c	random: handle archrandom with multiple longs	2022-07-25 13:26:14 +02:00
ftrace_32.S	x86: Prepare asm files for straight-line-speculation	2021-12-08 12:25:37 +01:00
ftrace_64.S	ftrace,kcfi: Separate ftrace_stub() and ftrace_stub_graph()	2022-10-20 17:10:27 +02:00
ftrace.c	Tracing updates for 5.20 / 6.0	2022-08-05 09:41:12 -07:00
head32.c
head64.c	x86: Clear .brk area at early boot	2022-07-01 11:11:34 +02:00
head_32.S	x86/asm/32: Fix ANNOTATE_UNRET_SAFE use on 32-bit	2022-07-13 12:43:26 +02:00
head_64.S	objtool: Add entry UNRET validation	2022-06-27 10:34:00 +02:00
hpet.c	rtc: Check return value from mc146818_get_time()	2021-12-16 21:50:06 +01:00
hw_breakpoint.c	x86/debug: Prevent data breakpoints on cpu_dr7	2021-02-05 20:13:12 +01:00
i8237.c
i8253.c
i8259.c	x86: Avoid magic number with ELCR register accesses	2021-08-10 23:31:43 +02:00
idt.c	x86/traps: Add #VE support for TDX guest	2022-04-07 08:27:51 -07:00
io_delay.c
ioport.c
irq_32.c	asm-generic: Conditionally enable do_softirq_own_stack() via Kconfig.	2022-09-05 17:20:55 +02:00
irq_64.c	x86/softirq/64: Inline do_softirq_own_stack()	2021-02-10 23:34:17 +01:00
irq_work.c
irq.c	x86/irq: Ensure PI wakeup handler is unregistered before module unload	2021-10-22 12:45:35 -04:00
irqflags.S	x86: Prepare asm files for straight-line-speculation	2021-12-08 12:25:37 +01:00
irqinit.c
itmt.c	x86/sched: Decrease further the priorities of SMT siblings	2021-10-05 15:51:59 +02:00
jailhouse.c
jump_label.c	jump_label: make initial NOP patching the special case	2022-06-24 09:48:55 +02:00
kdebugfs.c	x86/boot: Fix memremap of setup_indirect structures	2022-03-09 12:49:44 +01:00
kexec-bzimage64.c	integrity-v6.0	2022-08-02 15:21:18 -07:00
kgdb.c	x86: Fix various typos in comments	2021-03-18 15:31:53 +01:00
ksysfs.c	x86/boot: Fix memremap of setup_indirect structures	2022-03-09 12:49:44 +01:00
kvm.c	x86: kvm: remove NULL check before kfree	2022-06-20 06:22:04 -04:00
kvmclock.c	x86/kvm: Don't waste kvmclock memory if there is nopv parameter	2022-04-13 13:37:19 -04:00
ldt.c	memcg: enable accounting for ldt_struct objects	2021-09-03 09:58:13 -07:00
machine_kexec_32.c	x86/kexec: Set_[gi]dt() -> native_[gi]dt_invalidate() in machine_kexec_*.c	2021-05-21 12:36:45 +02:00
machine_kexec_64.c	x86/kexec: fix memory leak of elf header buffer	2022-06-01 15:57:16 -07:00
Makefile	- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in	2022-10-10 17:53:04 -07:00
mmconf-fam10h_64.c	x86/msr: Rename MSR_K8_SYSCFG to MSR_AMD64_SYSCFG	2021-05-10 07:51:38 +02:00
module.c	treewide: use prandom_u32_max() when possible, part 1	2022-10-11 17:42:55 -06:00
mpparse.c	x86: Avoid magic number with ELCR register accesses	2021-08-10 23:31:43 +02:00
msr.c	x86/MSR: Filter MSR writes through X86_IOC_WRMSR_REGS ioctl too	2021-01-27 19:06:47 +01:00
nmi_selftest.c
nmi.c	x86/nmi: Make register_nmi_handler() more robust	2022-05-17 09:25:25 +02:00
paravirt-spinlocks.c	x86/paravirt: Add new features for paravirt patching	2021-03-11 19:51:49 +01:00
paravirt.c	x86/ibt,paravirt: Sprinkle ENDBR	2022-03-15 10:32:36 +01:00
pci-dma.c	swiotlb: merge swiotlb-xen initialization into swiotlb	2022-04-18 07:21:13 +02:00
pcspeaker.c
perf_regs.c
platform-quirks.c
pmem.c	x86/pmem: Fix platform-device leak in error path	2022-06-20 18:01:16 +02:00
probe_roms.c	x86/kernel: Validate ROM memory before accessing when SEV-SNP is active	2022-04-06 13:23:09 +02:00
process_32.c	- Remove all the code around GS switching on 32-bit now that it is not	2022-05-23 18:42:07 -07:00
process_64.c	x86: kmsan: skip shadow checks in __switch_to()	2022-10-03 14:03:24 -07:00
process.c	treewide: use prandom_u32_max() when possible, part 1	2022-10-11 17:42:55 -06:00
process.h	x86: Snapshot thread flags	2021-12-01 00:06:43 +01:00
ptrace.c	x86/32: Remove lazy GS macros	2022-04-14 14:09:43 +02:00
pvclock.c	x86: Fix various typos in comments	2021-03-18 15:31:53 +01:00
quirks.c
reboot_fixups_32.c
reboot.c	x86: Use do_kernel_power_off()	2022-05-19 19:30:31 +02:00
relocate_kernel_32.S	x86/kexec: Disable RET on kexec	2022-07-09 13:12:32 +02:00
relocate_kernel_64.S	x86/kexec: Disable RET on kexec	2022-07-09 13:12:32 +02:00
resource.c	x86/PCI: Revert "x86/PCI: Clip only host bridge windows for E820 regions"	2022-06-17 14:24:14 -05:00
rethook.c	x86,rethook: Fix arch_rethook_trampoline() to generate a complete pt_regs	2022-03-28 19:38:51 -07:00
rtc.c	x86/rtc: Rename mach_set_rtc_mmss() to mach_set_cmos_time()	2022-08-14 11:24:29 +02:00
setup_percpu.c	mm: percpu: add generic pcpu_populate_pte() function	2022-01-20 08:52:52 +02:00
setup.c	x86/setup: Use rng seeds from setup_data	2022-07-11 09:59:31 +02:00
sev_verify_cbit.S	x86: Prepare asm files for straight-line-speculation	2021-12-08 12:25:37 +01:00
sev-shared.c	Revert "x86/sev: Expose sev_es_ghcb_hv_call() for use by HyperV"	2022-07-27 18:09:13 +02:00
sev.c	x86/sev: Mark snp_abort() noreturn	2022-08-25 15:54:03 +02:00
signal_compat.c	signal: Deliver SIGTRAP on perf event asynchronously if blocked	2022-04-22 12:14:05 +02:00
signal.c	x86/32: Remove lazy GS macros	2022-04-14 14:09:43 +02:00
smp.c	x86: Fix various typos in comments, take #2	2021-03-21 23:50:28 +01:00
smpboot.c	smp: add set_nr_cpu_ids()	2022-09-19 17:51:53 -07:00
stacktrace.c	x86: remove __range_not_ok()	2022-02-25 09:36:05 +01:00
static_call.c	x86/static_call: Serialize __static_call_fixup() properly	2022-07-12 14:23:32 +02:00
step.c	ptrace: Reimplement PTRACE_KILL by always sending SIGKILL	2022-05-11 14:34:28 -05:00
sys_ia32.c
sys_x86_64.c	x86/mm: Cleanup the control_va_addr_alignment() __setup handler	2022-05-04 18:20:42 +02:00
tboot.c	mm: remove rb tree.	2022-09-26 19:46:16 -07:00
time.c
tls.c	x86/stackprotector/32: Make the canary into a regular percpu variable	2021-03-08 13:19:05 +01:00
tls.h
topology.c	drivers/base/node: consolidate node device subsystem initialization in node_dev_init()	2022-03-22 15:57:10 -07:00
trace_clock.c
trace.c	trace/osnoise: Fix an ifdef comment	2021-10-25 23:02:36 -04:00
tracepoint.c	x86/traceponit: Fix comment about irq vector tracepoints	2022-05-26 22:03:52 -04:00
traps.c	x86/traps: avoid KMSAN bugs originating from handle_bug()	2022-11-08 15:57:24 -08:00
tsc_msr.c
tsc_sync.c	x86/tsc: Add a timer to make sure TSC_adjust is always checked	2021-12-02 00:40:35 +01:00
tsc.c	x86/tsc: Be consistent about use_tsc_delay()	2022-03-15 18:20:33 +01:00
umip.c	x86/umip: Downgrade warning messages to debug loglevel	2021-09-25 13:23:28 +02:00
unwind_frame.c	x86: kmsan: don't instrument stack walking functions	2022-10-03 14:03:25 -07:00
unwind_guess.c	x86/unwind: Recover kretprobe trampoline entry	2021-09-30 21:24:07 -04:00
unwind_orc.c	x86/unwind/orc: Fix unreliable stack dump with gcov	2022-10-21 14:56:42 +02:00
uprobes.c	x86/uprobes: Convert to insn_decode()	2021-03-15 12:05:03 +01:00
verify_cpu.S	x86: Prepare asm files for straight-line-speculation	2021-12-08 12:25:37 +01:00
vm86_32.c	x86/32: Remove lazy GS macros	2022-04-14 14:09:43 +02:00
vmlinux.lds.S	Just when you thought that all the speculation bugs were addressed and	2022-07-11 18:15:25 -07:00
vsmp_64.c
x86_init.c	x86/rtc: Rename mach_set_rtc_mmss() to mach_set_cmos_time()	2022-08-14 11:24:29 +02:00