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Intel microcode updates |
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Kladno ![]() Newbie ![]() Joined: 15 Aug 2016 Status: Offline Points: 34 |
![]() ![]() ![]() ![]() ![]() Posted: 02 Mar 2018 at 4:34pm |
I hope good news for Intel Skylake CPUs now...
03/01/2018 Announce that a stand-alone update for Windows 10 Version 1709 is available via the Microsoft Update Catalog. This update includes microcode updates from Intel. See Microsoft Knowledge Base Article 4090007 (https://support.microsoft.com/en-us/help/4090007/intel-microcode-updates) for more information. KB4090007: Intel microcode updates Intel recently announced that they have completed their validations and started to release microcode for newer CPU platforms around Spectre Variant 2 (CVE 2017-5715 ("Branch Target Injection")). We will offer additional microcode updates from Intel thru this KB Article for these Operating Systems as they become available to Microsoft. Edited by Kladno - 02 Mar 2018 at 5:07pm |
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hhuey5 ![]() Newbie ![]() ![]() Joined: 18 Feb 2018 Status: Offline Points: 16 |
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I'd like more info and user reaction to this update
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chrisw ![]() Newbie ![]() Joined: 04 Mar 2018 Status: Offline Points: 4 |
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I just installed the new update that includes this. 1.4 for the x299 Taichi XE. I have a 7940x CPU. This update broke my ability to do a Specific Per Core overclock. Pretty frustrating.
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Kladno ![]() Newbie ![]() Joined: 15 Aug 2016 Status: Offline Points: 34 |
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I tried it and it works. Asrock Extreme7+, CPU Skylake-S, Windows 10 1709.16299.248 InSpectre BEFORE Meltdown protected: YES Spectre protected : NO AFTER Meltdown protected: YES Spectre protected : YES Powershell SpeculationControl.psm1 BEFORE Speculation control settings for CVE-2017-5715 [branch target injection] For more information about the output below, please refer to https://support.microsoft.com/en-in/help/4074629 Hardware support for branch target injection mitigation is present: False Windows OS support for branch target injection mitigation is present: True Windows OS support for branch target injection mitigation is enabled: False Windows OS support for branch target injection mitigation is disabled by system policy: False Windows OS support for branch target injection mitigation is disabled by absence of hardware support: True Speculation control settings for CVE-2017-5754 [rogue data cache load] Hardware requires kernel VA shadowing: True Windows OS support for kernel VA shadow is present: True Windows OS support for kernel VA shadow is enabled: True Windows OS support for PCID performance optimization is enabled: True [not required for security] Suggested actions * Install BIOS/firmware update provided by your device OEM that enables hardware support for the branch target injection mitigation. BTIHardwarePresent : False BTIWindowsSupportPresent : True BTIWindowsSupportEnabled : False BTIDisabledBySystemPolicy : False BTIDisabledByNoHardwareSupport : True KVAShadowRequired : True KVAShadowWindowsSupportPresent : True KVAShadowWindowsSupportEnabled : True KVAShadowPcidEnabled : True AFTER Speculation control settings for CVE-2017-5715 [branch target injection] For more information about the output below, please refer to https://support.microsoft.com/en-in/help/4074629 Hardware support for branch target injection mitigation is present: True Windows OS support for branch target injection mitigation is present: True Windows OS support for branch target injection mitigation is enabled: True Speculation control settings for CVE-2017-5754 [rogue data cache load] Hardware requires kernel VA shadowing: True Windows OS support for kernel VA shadow is present: True Windows OS support for kernel VA shadow is enabled: True Windows OS support for PCID performance optimization is enabled: True [not required for security] BTIHardwarePresent : True BTIWindowsSupportPresent : True BTIWindowsSupportEnabled : True BTIDisabledBySystemPolicy : False BTIDisabledByNoHardwareSupport : False KVAShadowRequired : True KVAShadowWindowsSupportPresent : True KVAShadowWindowsSupportEnabled : True KVAShadowPcidEnabled : True This actually is a Windows update which updates Windows file C:\Windows\System32\mcupdate_GenuineIntel.dll for Intel CPU, or eventually mcupdate_AuthenticAMD.dll for AMD CPU. The update KB4090007 can be uninstalled. I do not see any side effects yet. Check value "Update Revision" before and after in registry key: [HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor] In Windows is Intel Microcode Update Revision changed to C2 now. Edited by Kladno - 05 Mar 2018 at 2:33am |
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