Message ID | 20231216165325.2584919-2-hjl.tools@gmail.com |
---|---|
State | Committed |
Commit | 0b850186fd3177311f10dcb938b668cc750fa3be |
Headers |
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(localhost [IPv6:::1]) by gnu-cfl-3.localdomain (Postfix) with ESMTP id 58D3274041E; Sat, 16 Dec 2023 08:53:25 -0800 (PST) From: "H.J. Lu" <hjl.tools@gmail.com> To: libc-alpha@sourceware.org Cc: rick.p.edgecombe@intel.com Subject: [PATCH v2 01/16] x86/cet: Check user_shstk in /proc/cpuinfo Date: Sat, 16 Dec 2023 08:53:10 -0800 Message-ID: <20231216165325.2584919-2-hjl.tools@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20231216165325.2584919-1-hjl.tools@gmail.com> References: <20231216165325.2584919-1-hjl.tools@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-3024.7 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Libc-alpha mailing list <libc-alpha.sourceware.org> List-Unsubscribe: <https://sourceware.org/mailman/options/libc-alpha>, <mailto:libc-alpha-request@sourceware.org?subject=unsubscribe> List-Archive: <https://sourceware.org/pipermail/libc-alpha/> List-Post: <mailto:libc-alpha@sourceware.org> List-Help: <mailto:libc-alpha-request@sourceware.org?subject=help> List-Subscribe: <https://sourceware.org/mailman/listinfo/libc-alpha>, <mailto:libc-alpha-request@sourceware.org?subject=subscribe> Errors-To: libc-alpha-bounces+patchwork=sourceware.org@sourceware.org |
Series |
x86/cet: Update CET kernel interface
|
|
Checks
Context | Check | Description |
---|---|---|
redhat-pt-bot/TryBot-apply_patch | success | Patch applied to master at the time it was sent |
Commit Message
H.J. Lu
Dec. 16, 2023, 4:53 p.m. UTC
Linux kernel reports CPU shadow stack feature in /proc/cpuinfo as user_shstk, instead of shstk. --- sysdeps/x86/tst-cpu-features-cpuinfo.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
Comments
On Sat, Dec 16, 2023 at 8:53 AM H.J. Lu <hjl.tools@gmail.com> wrote: > > Linux kernel reports CPU shadow stack feature in /proc/cpuinfo as > user_shstk, instead of shstk. > --- > sysdeps/x86/tst-cpu-features-cpuinfo.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/sysdeps/x86/tst-cpu-features-cpuinfo.c b/sysdeps/x86/tst-cpu-features-cpuinfo.c > index 18d64375ca..1d6c647b70 100644 > --- a/sysdeps/x86/tst-cpu-features-cpuinfo.c > +++ b/sysdeps/x86/tst-cpu-features-cpuinfo.c > @@ -246,7 +246,7 @@ do_test (int argc, char **argv) > fails += CHECK_PROC (sgx, SGX); > fails += CHECK_PROC (sgx_lc, SGX_LC); > fails += CHECK_PROC (sha_ni, SHA); > - fails += CHECK_PROC (shstk, SHSTK); > + fails += CHECK_PROC (user_shstk, SHSTK); > fails += CHECK_PROC (smap, SMAP); > fails += CHECK_PROC (smep, SMEP); > fails += CHECK_PROC (smx, SMX); > -- > 2.43.0 > On Tiger Lake, /proc/cpuinfo reports flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb cat_l2 cdp_l2 ssbd ibrs ibpb stibp ibrs_enhanced tpr_shadow flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid rdt_a avx512f avx512dq rdseed adx smap avx512ifma clflushopt clwb intel_pt avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves split_lock_detect user_shstk dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp hwp_pkg_req vnmi avx512vbmi umip pku ospke avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg avx512_vpopcntdq rdpid movdiri movdir64b fsrm avx512_vp2intersect md_clear ibt flush_l1d arch_capabilities I will check it tomorrow if there is no objection. Thanks.
diff --git a/sysdeps/x86/tst-cpu-features-cpuinfo.c b/sysdeps/x86/tst-cpu-features-cpuinfo.c index 18d64375ca..1d6c647b70 100644 --- a/sysdeps/x86/tst-cpu-features-cpuinfo.c +++ b/sysdeps/x86/tst-cpu-features-cpuinfo.c @@ -246,7 +246,7 @@ do_test (int argc, char **argv) fails += CHECK_PROC (sgx, SGX); fails += CHECK_PROC (sgx_lc, SGX_LC); fails += CHECK_PROC (sha_ni, SHA); - fails += CHECK_PROC (shstk, SHSTK); + fails += CHECK_PROC (user_shstk, SHSTK); fails += CHECK_PROC (smap, SMAP); fails += CHECK_PROC (smep, SMEP); fails += CHECK_PROC (smx, SMX);