David Woodhouse d37fc6d360 x86/speculation: Correct Speculation Control microcode blacklist again ...

Arjan points out that the Intel document only clears the 0xc2 microcode
on *some* parts with CPUID 506E3 (INTEL_FAM6_SKYLAKE_DESKTOP stepping 3).
For the Skylake H/S platform it's OK but for Skylake E3 which has the
same CPUID it isn't (yet) cleared.

So removing it from the blacklist was premature. Put it back for now.

Also, Arjan assures me that the 0x84 microcode for Kaby Lake which was
featured in one of the early revisions of the Intel document was never
released to the public, and won't be until/unless it is also validated
as safe. So those can change to 0x80 which is what all *other* versions
of the doc have identified.

Once the retrospective testing of existing public microcodes is done, we
should be back into a mode where new microcodes are only released in
batches and we shouldn't even need to update the blacklist for those
anyway, so this tweaking of the list isn't expected to be a thing which
keeps happening.

Requested-by: Arjan van de Ven <arjan.van.de.ven@intel.com>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: arjan.van.de.ven@intel.com
Cc: dave.hansen@intel.com
Cc: kvm@vger.kernel.org
Cc: pbonzini@redhat.com
Link: http://lkml.kernel.org/r/1518449255-2182-1-git-send-email-dwmw@amazon.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2018-02-13 08:58:59 +01:00

..

acpi

Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-26 14:11:54 -08:00

apic

x86/apic/vector: Fix off by one in error path

2018-01-17 12:11:36 +01:00

cpu

x86/speculation: Correct Speculation Control microcode blacklist again

2018-02-13 08:58:59 +01:00

fpu

Merge commit 'upstream-x86-entry' into WIP.x86/mm

2017-12-17 12:58:53 +01:00

kprobes

Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2018-01-21 10:48:35 -08:00

.gitignore

…

alternative.c

x86/paravirt: Remove 'noreplace-paravirt' cmdline option

2018-01-31 10:37:45 +01:00

amd_gart_64.c

x86: remove arch specific dma_supported implementation

2017-06-28 06:54:46 -07:00

amd_nb.c

x86/cpu/AMD: Apply the Erratum 688 fix when the BIOS doesn't

2017-10-22 13:06:02 +02:00

apb_timer.c

Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2016-12-25 14:30:04 -08:00

aperture_64.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

apm_32.c

dmi: Mark all struct dmi_system_id instances const

2017-09-14 11:59:30 +02:00

asm-offsets_32.c

x86/entry: Rename SYSENTER_stack to CPU_ENTRY_AREA_entry_stack

2017-12-22 20:13:02 +01:00

asm-offsets_64.c

x86/entry/64: Separate cpu_current_top_of_stack from TSS.sp0

2017-12-17 13:59:56 +01:00

asm-offsets.c

x86/mm: Use/Fix PCID to optimize user/kernel switches

2017-12-23 21:13:00 +01:00

audit_64.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

bootflag.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

check.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

cpuid.c

Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2016-12-12 19:25:04 -08:00

crash_dump_32.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

crash_dump_64.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

crash.c

resource: Fix resource_size.cocci warnings

2017-11-07 20:44:56 +01:00

devicetree.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

doublefault.c

x86/entry: Fix assumptions that the HW TSS is at the beginning of cpu_tss

2017-12-17 13:59:55 +01:00

dumpstack_32.c

x86/entry: Rename SYSENTER_stack to CPU_ENTRY_AREA_entry_stack

2017-12-22 20:13:02 +01:00

dumpstack_64.c

x86/entry: Rename SYSENTER_stack to CPU_ENTRY_AREA_entry_stack

2017-12-22 20:13:02 +01:00

dumpstack.c

x86/dumpstack: Print registers for first stack frame

2018-01-03 16:14:46 +01:00

e820.c

x86/boot/e820: Add support to determine the E820 type of an address

2017-07-18 11:38:01 +02:00

early_printk.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

early-quirks.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

ebda.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

eisa.c

x86/eisa: Add missing include

2017-08-31 21:34:48 +02:00

espfix_64.c

kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK

2017-11-15 18:21:04 -08:00

ftrace_32.S

x86/retpoline/ftrace: Convert ftrace assembler indirect jumps

2018-01-12 00:14:30 +01:00

ftrace_64.S

Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2018-01-28 12:19:23 -08:00

ftrace.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

head32.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

head64.c

x86/mm: Encrypt the initrd earlier for BSP microcode update

2018-01-16 01:50:59 +01:00

head_32.S

Merge commit 'upstream-x86-entry' into WIP.x86/mm

2017-12-17 12:58:53 +01:00

head_64.S

x86/mm/pti: Allocate a separate user PGD

2017-12-23 21:13:00 +01:00

hpet.c

x86/hpet: Cure interface abuse in the resume path

2017-08-01 13:02:37 +02:00

hw_breakpoint.c

x86/kernel: Audit and remove any unnecessary uses of module.h

2016-07-14 15:06:41 +02:00

i8237.c

…

i8253.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

i8259.c

Merge branch 'linus' into x86/apic, to resolve conflicts

2017-11-07 10:51:10 +01:00

idt.c

x86/idt: Mark IDT tables __initconst

2018-01-14 20:09:45 +01:00

io_delay.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

ioport.c

x86/entry/64: Make cpu_entry_area.tss read-only

2017-12-17 14:27:52 +01:00

irq_32.c

x86/retpoline/irq32: Convert assembler indirect jumps

2018-01-12 00:14:32 +01:00

irq_64.c

x86/irq/64: Print the offending IP in the stack overflow warning

2017-12-17 13:59:53 +01:00

irq_work.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

irq.c

Merge branch 'WIP.x86-pti.entry-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-12-18 08:59:15 -08:00

irqinit.c

Revert "x86/apic: Remove init_bsp_APIC()"

2018-01-14 12:14:51 +01:00

itmt.c

sched/x86: Remove unnecessary TBM3 check to update topology

2017-01-19 08:42:37 +01:00

jump_label.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

kdebugfs.c

x86, mpparse, x86/acpi, x86/PCI, x86/dmi, SFI: Use memremap() for RAM mappings

2017-07-18 11:37:58 +02:00

kexec-bzimage64.c

x86/boot/e820: Rename the e820_table_firmware to e820_table_kexec

2017-07-05 10:09:02 +02:00

kgdb.c

sched/x86: Add 'struct inactive_task_frame' to better document the sleeping task stack frame

2016-08-24 12:27:41 +02:00

ksysfs.c

x86/sysfs: Fix off-by-one error in loop termination

2017-09-25 09:36:16 +02:00

kvm.c

Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-13 17:04:36 -08:00

kvmclock.c

Merge tag 'for-linus-4.15-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

2017-11-16 13:06:27 -08:00

ldt.c

x86/ldt: Make LDT pgtable free conditional

2017-12-31 16:55:09 +01:00

livepatch.c

livepatch/x86: apply alternatives and paravirt patches after relocations

2016-08-18 23:41:55 +02:00

machine_kexec_32.c

x86-32: Fix kexec with stack canary (CONFIG_CC_STACKPROTECTOR)

2017-12-27 20:59:41 +01:00

machine_kexec_64.c

x86/mm, kexec: Fix memory corruption with SME on successive kexecs

2017-07-30 12:09:12 +02:00

Makefile

x86/ftrace: Fix ORC unwinding from ftrace handlers

2018-01-23 13:24:19 -05:00

mmconf-fam10h_64.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

module.c

x86/module: Detect and skip invalid relocations

2017-11-05 09:52:16 +01:00

mpparse.c

x86/boot: Fix boot failure when SMP MP-table is based at 0

2017-11-17 15:30:33 +01:00

msr.c

x86/msr: Remove bogus cleanup from the error path

2016-12-25 10:47:41 +01:00

nmi_selftest.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

nmi.c

locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE()

2017-10-25 11:01:08 +02:00

paravirt_patch_32.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

paravirt_patch_64.c

x86/paravirt: Dont patch flush_tlb_single

2017-12-17 14:27:52 +01:00

paravirt-spinlocks.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

paravirt.c

locking/paravirt: Use new static key for controlling call of virt_spin_lock()

2017-10-10 11:50:12 +02:00

pci-calgary_64.c

x86, calgary: Convert timers to use timer_setup()

2017-11-02 15:50:32 -07:00

pci-dma.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

pci-iommu_table.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

pci-nommu.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

pci-swiotlb.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

pcspeaker.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

perf_regs.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

platform-quirks.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

pmem.c

resource: Provide resource struct in resource walk callback

2017-11-07 15:35:57 +01:00

probe_roms.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

process_32.c

x86/entry/64: Make cpu_entry_area.tss read-only

2017-12-17 14:27:52 +01:00

process_64.c

x86/asm: Move 'status' from thread_struct to thread_info

2018-01-30 15:30:36 +01:00

process.c

x86/mm: Rework wbinvd, hlt operation in stop_this_cpu()

2018-01-18 11:48:59 +01:00

ptrace.c

x86/asm: Move 'status' from thread_struct to thread_info

2018-01-30 15:30:36 +01:00

pvclock.c

x86/pvclock: add setter for pvclock_pvti_cpu0_va

2017-11-08 16:33:14 -05:00

quirks.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

reboot_fixups_32.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

reboot.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

relocate_kernel_32.S

…

relocate_kernel_64.S

x86/mm, kexec: Fix memory corruption with SME on successive kexecs

2017-07-30 12:09:12 +02:00

resource.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

rtc.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

setup_percpu.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

setup.c

x86/mm: Encrypt the initrd earlier for BSP microcode update

2018-01-16 01:50:59 +01:00

signal_compat.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

signal.c

x86/asm: Move 'status' from thread_struct to thread_info

2018-01-30 15:30:36 +01:00

smp.c

x86/tracing: Disentangle pagefault and resched IPI tracing key

2017-08-29 11:42:29 +02:00

smpboot.c

Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-12-31 13:03:05 -08:00

stacktrace.c

Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2018-01-03 16:41:07 -08:00

step.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

sys_x86_64.c

x86/mm: Prevent non-MAP_FIXED mapping across DEFAULT_MAP_WINDOW border

2017-11-16 11:43:11 +01:00

sysfb_efi.c

Merge branch 'linus' into efi/core, to pick up fixes

2016-05-07 07:00:07 +02:00

sysfb_simplefb.c

x86/sysfb: Fix lfb_size calculation

2016-11-16 09:38:23 +01:00

sysfb.c

…

tboot.c

x86/pti: Make unpoison of pgd for trusted boot work for real

2018-01-11 23:36:59 +01:00

tce_64.c

x86/cpufeature: Remove cpu_has_clflush

2016-03-31 13:35:09 +02:00

time.c

Merge branch 'linus' into x86/apic, to resolve conflicts

2017-11-07 10:51:10 +01:00

tls.c

x86/ldt: Make the LDT mapping RO

2017-12-23 21:13:01 +01:00

tls.h

…

topology.c

x86: Drop bogus __ref / __refdata annotations

2015-07-20 18:57:20 +02:00

trace_clock.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

tracepoint.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

traps.c

Merge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-12-31 13:13:56 -08:00

tsc_msr.c

x86/tsc: Set TSC_KNOWN_FREQ and TSC_RELIABLE flags on Intel Atom SoCs

2016-11-18 10:58:31 +01:00

tsc_sync.c

Merge branch 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-13 19:07:38 -08:00

tsc.c

x86/tsc: Print tsc_khz, when it differs from cpu_khz

2018-01-14 12:14:50 +01:00

umip.c

x86/umip: Fix insn_get_code_seg_params()'s return value

2017-11-23 20:17:59 +01:00

unwind_frame.c

x86/unwind: Disable unwinder warnings on 32-bit

2017-10-10 12:49:49 +02:00

unwind_guess.c

x86/unwind: Add the ORC unwinder

2017-07-26 13:18:20 +02:00

unwind_orc.c

ftrace, orc, x86: Handle ftrace dynamically allocated trampolines

2018-01-23 15:56:55 -05:00

uprobes.c

uprobes/x86: Use existing definitions for segment override prefixes

2017-11-01 21:50:08 +01:00

verify_cpu.S

x86/boot: Annotate verify_cpu() as a callable function

2017-09-28 09:39:03 +02:00

vm86_32.c

Merge commit 'upstream-x86-entry' into WIP.x86/mm

2017-12-17 12:58:53 +01:00

vmlinux.lds.S

retpoline: Introduce start/end markers of indirect thunk

2018-01-19 16:31:28 +01:00

vsmp_64.c

x86/apic: Remove unused callbacks

2017-09-25 20:51:58 +02:00

x86_init.c

Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-13 18:29:23 -08:00