Changes in intel-ucode-defs.h

cd4cdc53cc5e7009ea6ef305336682d7800becf7 - Merge tag 'x86_microcode_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Tue, 14 Apr 2026 23:57:29 +0200

Merge tag 'x86_microcode_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipPull x86 microcode loading updates from Borislav Petkov: "The kernel carries a table of Intel CPUs family, model, stepping, etc tuples which say what is the latest microcode for that particular CPU. Some CPU variants differ only by the platform ID which determines what microcode needs to be loaded on them. Carve out the platform ID handling from the microcode loader and make it available in a more generic place so that the old microcode verification machinery can use it"* tag 'x86_microcode_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/microcode: Add platform mask to Intel microcode "old" list x86/cpu: Add platform ID to CPU matching structure x86/cpu: Add platform ID to CPU info structure x86/microcode: Refactor platform ID enumeration into a helper List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

7989c39341348e3507282d88a564cb20d83a0829 - x86/microcode: Add platform mask to Intel microcode "old" list

Wed, 04 Mar 2026 19:10:24 +0100

x86/microcode: Add platform mask to Intel microcode "old" listIntel sometimes has CPUs with identical family/model/stepping butwhich need different microcode. These CPUs are differentiated with theplatform ID.The Intel "microcode-20250512" release was used to generate theexisting contents of intel-ucode-defs.h. Use that same release and addthe platform mask to the definitions.This makes the list a few entries longer because some CPUs previouslythat shared a definition now need two or more. for example for theancient Pentium III there are two CPUs that differ only in theirplatform and have two different microcode versions (note:.driver_data is the microcode version): { ..., .model = 0x05, .steppings = 0x0001, .platform_mask = 0x01, .driver_data = 0x40 }, { ..., .model = 0x05, .steppings = 0x0001, .platform_mask = 0x08, .driver_data = 0x45 },Another example is the state-of-the-art Granite Rapids: { ..., .model = 0xad, .steppings = 0x0002, .platform_mask = 0x20, .driver_data = 0xa0000d1 }, { ..., .model = 0xad, .steppings = 0x0002, .platform_mask = 0x95, .driver_data = 0x10003a2 },As you can see, this differentiation with platform ID has beennecessary for a long time and is still relevant today.Without the platform matching, the old microcode table is incomplete.For instance, it might lead someone with a Pentium III, platform 0x0,and microcode 0x40 to think that they should have microcode 0x45,which is really only for platform 0x4 (.platform_mask==0x08).In practice, this meant that folks with fully updated microcode wereseeing "Vulnerable" in the "old_microcode" file.1. https://github.com/intel/Intel-Linux-Processor-Microcode-Data-FilesCloses: https://lore.kernel.org/all/38660F8F-499E-48CD-B58B-4822228A5941@nutanix.com/Fixes: 4e2c719782a8 ("x86/cpu: Help users notice when running old Intel microcode")Reported-by: Jon Kohler Signed-off-by: Dave Hansen Reviewed-by: Sohil Mehta Tested-by: Zhao Liu Link: https://lore.kernel.org/all/3ECBB974-C6F0-47A7-94B6-3646347F1CC2@nutanix.com/Link: https://patch.msgid.link/20260304181024.76E3F038@davehans-spike.ostc.intel.com List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

a4a508df2aa34f8650afde54ea804321c618f45f - Merge tag 'v6.18' into next

Sat, 13 Dec 2025 10:18:20 +0100

Merge tag 'v6.18' into nextSync up with the mainline to bring in the latest APIs. List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

cb9f145f638d7afa633632a9290d6ad06caeb8ee - Merge remote-tracking branch 'drm/drm-next' into msm-next-robclark

Sat, 01 Nov 2025 13:47:30 +0100

Merge remote-tracking branch 'drm/drm-next' into msm-next-robclarkBack-merge drm-next to get caught up.Signed-off-by: Rob Clark List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

82ee50252dc891e3f3b32d923bb4f656d300b772 - Merge drm/drm-next into drm-xe-next

Tue, 14 Oct 2025 11:31:49 +0200

Merge drm/drm-next into drm-xe-nextBackmerging to bring in 6.18-rc1.Signed-off-by: Thomas Hellström List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

2acee98fcc61052d63fab4539fcb6ee677555645 - Merge drm/drm-next into drm-intel-next

Tue, 14 Oct 2025 09:37:11 +0200

Merge drm/drm-next into drm-intel-nextSync to v6.18-rc1.Signed-off-by: Jani Nikula List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

9b966ae42235a88eaea714be09ff3d698535bdfe - Merge drm/drm-next into drm-misc-next

Mon, 13 Oct 2025 09:19:19 +0200

Merge drm/drm-next into drm-misc-nextUpdating drm-misc-next to the state of v6.18-rc1.Signed-off-by: Thomas Zimmermann List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

f088104d837a991c65e51fa30bb4196169b3244d - Merge drm/drm-next into drm-intel-gt-next

Tue, 16 Sep 2025 12:53:20 +0200

Merge drm/drm-next into drm-intel-gt-nextBackmerge in order to get the commit: 048832a3f400 ("drm/i915: Refactor shmem_pwrite() to use kiocb and write_iter")To drm-intel-gt-next as there are followup fixes to be applied.Signed-off-by: Joonas Lahtinen List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

2ace52718376fdb56aca863da2eebe70d7e2ddb1 - Merge branch 'objtool/core'

Fri, 21 Nov 2025 11:21:20 +0100

Merge branch 'objtool/core'Bring in the UDB and objtool data annotations to avoid conflicts while further extending the bug exceptions.Signed-off-by: Peter Zijlstra List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

f39b6c468c52745dbca9a842d91c8373fda208ab - Merge tag 'v6.18-rc6' into for-linus

Tue, 18 Nov 2025 08:16:55 +0100

Merge tag 'v6.18-rc6' into for-linusSync up with the mainline to bring in definition ofINPUT_PROP_HAPTIC_TOUCHPAD. List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

4f38da1f027ea2c9f01bb71daa7a299c191b6940 - spi: Merge up v6.18-rc1

Mon, 13 Oct 2025 14:32:13 +0200

spi: Merge up v6.18-rc1Ensure my CI has a sensible baseline. List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

ec2e0fb07d789976c601bec19ecced7a501c3705 - Merge tag 'asoc-fix-v6.18-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

Thu, 16 Oct 2025 20:14:24 +0200

Merge tag 'asoc-fix-v6.18-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linusASoC: Fixes for v6.18A moderately large collection of driver specific fixes, plus a few newquirks and device IDs. The NAU8821 changes are a little large but morein mechanical ways than in ways that are complex. List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

48a710760e10a4f36e11233a21860796ba204b1e - Merge drm/drm-fixes into drm-misc-fixes

Tue, 14 Oct 2025 10:59:58 +0200

Merge drm/drm-fixes into drm-misc-fixesUpdating drm-misc-fixes to the state of v6.18-rc1.Signed-off-by: Thomas Zimmermann List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

bd91417a962db247d41a22720a79e68a509a9353 - Merge tag 'x86_microcode_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Tue, 30 Sep 2025 21:41:10 +0200

Merge tag 'x86_microcode_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipPull x86 microcode loading updates from Borislav Petkov: - Add infrastructure to be able to debug the microcode loader in a guest - Refresh Intel old microcode revisions* tag 'x86_microcode_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/microcode: Add microcode loader debugging functionality x86/microcode: Add microcode= cmdline parsing x86/microcode/intel: Refresh the revisions that determine old_microcode List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

855042367e3f1ddc1e896fcd00af9c397d1174cb - x86/microcode/intel: Refresh the revisions that determine old_microcode

Mon, 18 Aug 2025 21:01:36 +0200

x86/microcode/intel: Refresh the revisions that determine old_microcodeUpdate the minimum expected revisions of Intel microcode based on themicrocode-20250512 (May 2025) release.Signed-off-by: Sohil Mehta Signed-off-by: Dave Hansen Signed-off-by: Borislav Petkov (AMD) Link: https://lore.kernel.org/all/20250818190137.3525414-2-sohil.mehta%40intel.com List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

ab93e0dd72c37d378dd936f031ffb83ff2bd87ce - Merge branch 'next' into for-linus

Wed, 06 Aug 2025 19:08:54 +0200

Merge branch 'next' into for-linusPrepare input updates for 6.17 merge window. List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

a7bee4e7f78089c101be2ad51f4b5ec64782053e - Merge tag 'ib-mfd-gpio-input-pwm-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into next

Mon, 04 Aug 2025 08:28:48 +0200

Merge tag 'ib-mfd-gpio-input-pwm-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into nextMerge an immutable branch between MFD, GPIO, Input and PWM to resolveconflicts for the merge window pull request. List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

74f1af95820fc2ee580a775a3a17c416db30b38c - Merge remote-tracking branch 'drm/drm-next' into msm-next

Sun, 29 Jun 2025 04:54:49 +0200

Merge remote-tracking branch 'drm/drm-next' into msm-nextBack-merge drm-next to (indirectly) get arm-smmu updates for makingstall-on-fault more reliable.Signed-off-by: Rob Clark List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

c598d5eb9fb331ba17bc9ad67ae9a2231ca5aca5 - Merge drm/drm-next into drm-misc-next

Wed, 11 Jun 2025 09:01:34 +0200

Merge drm/drm-next into drm-misc-nextBackmerging to forward to v6.16-rc1Signed-off-by: Thomas Zimmermann List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h

86e2d052c2320bf12571a5d96b16c2745e1cfc5e - Merge drm/drm-next into drm-xe-next

Mon, 09 Jun 2025 18:26:55 +0200

Merge drm/drm-next into drm-xe-nextBackmerging to bring in 6.16Signed-off-by: Thomas Hellström List of files: /linux/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h