[PATCH v3 19/20] tools/x86/kcpuid: Update bitfields to x86-cpuid-db v2.3
"Ahmed S. Darwish" <[email protected]>
| Newsgroups | dev.linux.lists.x86-cpuid,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
Update kcpuid's CSV file to version 2.3, as generated by x86-cpuid-db. Summary of the v2.3 changes: * Per H. Peter Anvin's feedback, leaf 0x3 is not unique to Transmeta as the CSV file earlier claimed. Since leaf 0x3's format differs between Intel and Transmeta, and the project does not yet support having the same CPUID bitfield with varying interpretations across vendors, leaf 0x3 is removed for now. Given that Intel discontinued support for PSN from Pentium 4 onward, and Linux force disables it on early boot for privacy concerns, this should have minimal impact. * Leaf 0x80000021: Make bitfield IDs and descriptions coherent with each other. Remove "_support" from bitfield IDs, as no other leaf has such convention. Reported-by: "H. Peter Anvin" <[email protected]> Closes: https://lkml.kernel.org/r/[email protected] Signed-off-by: Ahmed S. Darwish <[email protected]> Link: https://gitlab.com/x86-cpuid.org/x86-cpuid-db/-/blob/v2.3/CHANGELOG.rst --- tools/arch/x86/kcpuid/cpuid.csv | 30 +++++++++++------------------- 1 file changed, 11 insertions(+), 19 deletions(-) diff --git a/tools/arch/x86/kcpuid/cpuid.csv b/tools/arch/x86/kcpuid/cpuid.csv index 9613e09cbfb3..8d25b0b49f3b 100644 --- a/tools/arch/x86/kcpuid/cpuid.csv +++ b/tools/arch/x86/kcpuid/cpuid.csv @@ -1,5 +1,5 @@ # SPDX-License-Identifier: CC0-1.0 -# Generator: x86-cpuid-db v2.2 +# Generator: x86-cpuid-db v2.3 # # Auto-generated file. @@ -116,14 +116,6 @@ 0x2, 0, edx, 30:24, desc15 , Descriptor #15 0x2, 0, edx, 31, edx_invalid , Descriptors 12-15 are invalid if set -# Leaf 3H -# Transmeta Processor Serial Number (PSN) - - 0x3, 0, eax, 31:0, cpu_psn_0 , Processor Serial Number bytes 0 - 3 - 0x3, 0, ebx, 31:0, cpu_psn_1 , Processor Serial Number bytes 4 - 7 - 0x3, 0, ecx, 31:0, cpu_psn_2 , Processor Serial Number bytes 8 - 11 - 0x3, 0, edx, 31:0, cpu_psn_3 , Processor Serial Number bytes 12 - 15 - # Leaf 4H # Intel deterministic cache parameters @@ -1020,20 +1012,20 @@ 0x80000021, 0, eax, 0, no_nested_data_bp , No nested data breakpoints 0x80000021, 0, eax, 1, fsgs_non_serializing , WRMSR to {FS,GS,KERNEL_GS}_BASE is non-serializing 0x80000021, 0, eax, 2, lfence_rdtsc , LFENCE always serializing / synchronizes RDTSC -0x80000021, 0, eax, 3, smm_page_cfg_lock , SMM paging configuration lock is supported +0x80000021, 0, eax, 3, smm_page_cfg_lock , SMM paging configuration lock 0x80000021, 0, eax, 6, null_sel_clr_base , Null selector clears base -0x80000021, 0, eax, 7, upper_addr_ignore , EFER MSR Upper Address Ignore Enable bit supported -0x80000021, 0, eax, 8, autoibrs , EFER MSR Automatic IBRS enable bit supported -0x80000021, 0, eax, 9, no_smm_ctl_msr , SMM_CTL MSR (0xc0010116) is not present -0x80000021, 0, eax, 10, fsrs_supported , Fast Short Rep STOSB (FSRS) is supported -0x80000021, 0, eax, 11, fsrc_supported , Fast Short Rep CMPSB (FSRC) is supported -0x80000021, 0, eax, 13, prefetch_ctl_msr , Prefetch control MSR is supported +0x80000021, 0, eax, 7, upper_addr_ignore , EFER MSR Upper Address Ignore +0x80000021, 0, eax, 8, autoibrs , EFER MSR Automatic IBRS +0x80000021, 0, eax, 9, no_smm_ctl_msr , SMM_CTL MSR (0xc0010116) is not available +0x80000021, 0, eax, 10, fsrs , Fast Short Rep STOSB +0x80000021, 0, eax, 11, fsrc , Fast Short Rep CMPSB +0x80000021, 0, eax, 13, prefetch_ctl_msr , Prefetch control MSR is available 0x80000021, 0, eax, 16, opcode_reclaim , Reserves opcode space 0x80000021, 0, eax, 17, user_cpuid_disable , #GP when executing CPUID at CPL > 0 is supported -0x80000021, 0, eax, 18, epsf_supported , Enhanced Predictive Store Forwarding (EPSF) is supported +0x80000021, 0, eax, 18, epsf , Enhanced Predictive Store Forwarding 0x80000021, 0, eax, 22, wl_feedback , Workload-based heuristic feedback to OS -0x80000021, 0, eax, 24, eraps_support , Enhanced Return Address Predictor Security -0x80000021, 0, eax, 27, sbpb , Support for the Selective Branch Predictor Barrier +0x80000021, 0, eax, 24, eraps , Enhanced Return Address Predictor Security +0x80000021, 0, eax, 27, sbpb , Selective Branch Predictor Barrier 0x80000021, 0, eax, 28, ibpb_brtype , Branch predictions flushed from CPU branch predictor 0x80000021, 0, eax, 29, srso_no , CPU is not subject to the SRSO vulnerability 0x80000021, 0, eax, 30, srso_uk_no , CPU is not vulnerable to SRSO at user-kernel boundary -- 2.48.1