Re: [PATCH v2] x86/microcode/intel: Refresh old_microcode defines with the May 2026 release

[Andrew Cooper]

On 28/09/2026 11:26 pm, Sohil Mehta wrote:
> Update the minimum expected revisions of Intel microcode based on the
> microcode-20260512 (May 2026) release.
>
> Note, the three new entries are for INTEL_PANTHERLAKE_L steppings.
>
> Signed-off-by: Sohil Mehta <sohil.mehta@xxxxxxxxx>
> ---
> v2:
>  - Fix a typo in the commit message.
> ---
>  .../kernel/cpu/microcode/intel-ucode-defs.h   | 91 ++++++++++---------
>  1 file changed, 47 insertions(+), 44 deletions(-)
>
> diff --git a/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h b/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h
> index af8b1d8b26f6..7f463c85c5f8 100644
> --- a/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h
> +++ b/arch/x86/kernel/cpu/microcode/intel-ucode-defs.h
> @@ -136,35 +136,35 @@
>  { .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x5f, .steppings = 0x0002, .platform_mask = 0x01, .driver_data = 0x3e },
>  { .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x66, .steppings = 0x0008, .platform_mask = 0x80, .driver_data = 0x2a },
>  { .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x6a, .steppings = 0x0020, .platform_mask = 0x87, .driver_data = 0xc0002f0 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x6a, .steppings = 0x0040, .platform_mask = 0x87, .driver_data = 0xd000410 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x6c, .steppings = 0x0002, .platform_mask = 0x10, .driver_data = 0x10002e0 },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x6a, .steppings = 0x0040, .platform_mask = 0x87, .driver_data = 0xd000421 },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x6c, .steppings = 0x0002, .platform_mask = 0x10, .driver_data = 0x10002f1 },
>  { .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x7a, .steppings = 0x0002, .platform_mask = 0x01, .driver_data = 0x42 },
>  { .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x7a, .steppings = 0x0100, .platform_mask = 0x01, .driver_data = 0x26 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x7e, .steppings = 0x0020, .platform_mask = 0x80, .driver_data = 0xca },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x7e, .steppings = 0x0020, .platform_mask = 0x80, .driver_data = 0xcc },
>  { .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8a, .steppings = 0x0002, .platform_mask = 0x10, .driver_data = 0x33 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8c, .steppings = 0x0002, .platform_mask = 0x80, .driver_data = 0xbc },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8c, .steppings = 0x0004, .platform_mask = 0xc2, .driver_data = 0x3c },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8d, .steppings = 0x0002, .platform_mask = 0xc2, .driver_data = 0x56 },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8c, .steppings = 0x0002, .platform_mask = 0x80, .driver_data = 0xbe },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8c, .steppings = 0x0004, .platform_mask = 0xc2, .driver_data = 0x3e },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8d, .steppings = 0x0002, .platform_mask = 0xc2, .driver_data = 0x58 },
>  { .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8e, .steppings = 0x0200, .platform_mask = 0x10, .driver_data = 0xf6 },
>  { .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8e, .steppings = 0x0200, .platform_mask = 0xc0, .driver_data = 0xf6 },
>  { .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8e, .steppings = 0x0400, .platform_mask = 0xc0, .driver_data = 0xf6 },
>  { .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8e, .steppings = 0x0800, .platform_mask = 0xd0, .driver_data = 0xf6 },
>  { .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8e, .steppings = 0x1000, .platform_mask = 0x94, .driver_data = 0x100 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8f, .steppings = 0x0010, .platform_mask = 0x10, .driver_data = 0x2c000410 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8f, .steppings = 0x0010, .platform_mask = 0x87, .driver_data = 0x2b000650 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8f, .steppings = 0x0020, .platform_mask = 0x10, .driver_data = 0x2c000410 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8f, .steppings = 0x0020, .platform_mask = 0x87, .driver_data = 0x2b000650 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8f, .steppings = 0x0040, .platform_mask = 0x10, .driver_data = 0x2c000410 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8f, .steppings = 0x0040, .platform_mask = 0x87, .driver_data = 0x2b000650 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8f, .steppings = 0x0080, .platform_mask = 0x87, .driver_data = 0x2b000650 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8f, .steppings = 0x0100, .platform_mask = 0x10, .driver_data = 0x2c000410 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8f, .steppings = 0x0100, .platform_mask = 0x87, .driver_data = 0x2b000650 },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8f, .steppings = 0x0010, .platform_mask = 0x10, .driver_data = 0x2c000421 },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8f, .steppings = 0x0010, .platform_mask = 0x87, .driver_data = 0x2b000670 },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8f, .steppings = 0x0020, .platform_mask = 0x10, .driver_data = 0x2c000421 },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8f, .steppings = 0x0020, .platform_mask = 0x87, .driver_data = 0x2b000670 },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8f, .steppings = 0x0040, .platform_mask = 0x10, .driver_data = 0x2c000421 },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8f, .steppings = 0x0040, .platform_mask = 0x87, .driver_data = 0x2b000670 },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8f, .steppings = 0x0080, .platform_mask = 0x87, .driver_data = 0x2b000670 },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8f, .steppings = 0x0100, .platform_mask = 0x10, .driver_data = 0x2c000421 },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x8f, .steppings = 0x0100, .platform_mask = 0x87, .driver_data = 0x2b000670 },
>  { .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x96, .steppings = 0x0002, .platform_mask = 0x01, .driver_data = 0x1a },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x97, .steppings = 0x0004, .platform_mask = 0x07, .driver_data = 0x3d },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x97, .steppings = 0x0020, .platform_mask = 0x07, .driver_data = 0x3d },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x9a, .steppings = 0x0008, .platform_mask = 0x80, .driver_data = 0x43a },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x9a, .steppings = 0x0010, .platform_mask = 0x40, .driver_data = 0xb },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x9a, .steppings = 0x0010, .platform_mask = 0x80, .driver_data = 0x43a },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x97, .steppings = 0x0004, .platform_mask = 0x07, .driver_data = 0x3e },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x97, .steppings = 0x0020, .platform_mask = 0x07, .driver_data = 0x3e },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x9a, .steppings = 0x0008, .platform_mask = 0x80, .driver_data = 0x43b },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x9a, .steppings = 0x0010, .platform_mask = 0x40, .driver_data = 0xc },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x9a, .steppings = 0x0010, .platform_mask = 0x80, .driver_data = 0x43b },
>  { .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x9c, .steppings = 0x0001, .platform_mask = 0x01, .driver_data = 0x24000026 },
>  { .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x9e, .steppings = 0x0200, .platform_mask = 0x2a, .driver_data = 0xf8 },
>  { .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0x9e, .steppings = 0x0400, .platform_mask = 0x22, .driver_data = 0xfa },
> @@ -176,30 +176,33 @@
>  { .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xa5, .steppings = 0x0020, .platform_mask = 0x22, .driver_data = 0x100 },
>  { .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xa6, .steppings = 0x0001, .platform_mask = 0x80, .driver_data = 0x102 },
>  { .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xa6, .steppings = 0x0002, .platform_mask = 0x80, .driver_data = 0x100 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xa7, .steppings = 0x0002, .platform_mask = 0x02, .driver_data = 0x64 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xaa, .steppings = 0x0010, .platform_mask = 0xe6, .driver_data = 0x25 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xad, .steppings = 0x0002, .platform_mask = 0x20, .driver_data = 0xa000124 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xad, .steppings = 0x0002, .platform_mask = 0x95, .driver_data = 0x10003f0 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xae, .steppings = 0x0002, .platform_mask = 0x97, .driver_data = 0x1000273 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xaf, .steppings = 0x0008, .platform_mask = 0x01, .driver_data = 0x3000382 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xb5, .steppings = 0x0001, .platform_mask = 0x80, .driver_data = 0xa },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xb7, .steppings = 0x0002, .platform_mask = 0x32, .driver_data = 0x132 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xb7, .steppings = 0x0010, .platform_mask = 0x32, .driver_data = 0x132 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xba, .steppings = 0x0004, .platform_mask = 0xe0, .driver_data = 0x6133 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xba, .steppings = 0x0008, .platform_mask = 0xe0, .driver_data = 0x6133 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xba, .steppings = 0x0100, .platform_mask = 0xe0, .driver_data = 0x6133 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xbd, .steppings = 0x0002, .platform_mask = 0x80, .driver_data = 0x125 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xbe, .steppings = 0x0001, .platform_mask = 0x19, .driver_data = 0x1e },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xbf, .steppings = 0x0004, .platform_mask = 0x07, .driver_data = 0x3d },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xbf, .steppings = 0x0020, .platform_mask = 0x07, .driver_data = 0x3d },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xbf, .steppings = 0x0040, .platform_mask = 0x07, .driver_data = 0x3d },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xbf, .steppings = 0x0080, .platform_mask = 0x07, .driver_data = 0x3d },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xc5, .steppings = 0x0004, .platform_mask = 0x82, .driver_data = 0x11a },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xc6, .steppings = 0x0004, .platform_mask = 0x82, .driver_data = 0x11a },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xc6, .steppings = 0x0010, .platform_mask = 0x82, .driver_data = 0x11a },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xca, .steppings = 0x0004, .platform_mask = 0x82, .driver_data = 0x11a },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xcf, .steppings = 0x0002, .platform_mask = 0x87, .driver_data = 0x210002c0 },
> -{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xcf, .steppings = 0x0004, .platform_mask = 0x87, .driver_data = 0x210002c0 },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xa7, .steppings = 0x0002, .platform_mask = 0x02, .driver_data = 0x65 },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xaa, .steppings = 0x0010, .platform_mask = 0xe6, .driver_data = 0x28 },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xad, .steppings = 0x0002, .platform_mask = 0x20, .driver_data = 0xa000142 },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xad, .steppings = 0x0002, .platform_mask = 0x95, .driver_data = 0x1000423 },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xae, .steppings = 0x0002, .platform_mask = 0x97, .driver_data = 0x1000307 },
> +{ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, .vendor = X86_VENDOR_INTEL, .family = 0x6, .model = 0xaf, .steppings = 0x0008, .platform_mask = 0x01, .driver_data = 0x30003a3 },

This a known-buggy SRF ucode.  The only reason there wasn't an explicit
retraction of it was because a newer IPU had already been published,
with 0x030003b2 being believed to be good again.

~Andrew