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(localhost [IPv6:::1]) by gnu-cfl-3.localdomain (Postfix) with ESMTP id CB0F2740126 for ; Wed, 5 Apr 2023 09:21:44 -0700 (PDT) To: libc-alpha@sourceware.org Subject: [PATCH 09/19] : Add LASS support Date: Wed, 5 Apr 2023 09:21:34 -0700 Message-Id: <20230405162144.984598-10-hjl.tools@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230405162144.984598-1-hjl.tools@gmail.com> References: <20230405162144.984598-1-hjl.tools@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-3025.4 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 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: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: "H.J. Lu via Libc-alpha" From: "H.J. Lu" Reply-To: "H.J. Lu" Errors-To: libc-alpha-bounces+patchwork=sourceware.org@sourceware.org Sender: "Libc-alpha" Add Linear Address Space Separation (LASS) support to . Reviewed-by: Noah Goldstein --- manual/platform.texi | 3 +++ sysdeps/x86/bits/platform/x86.h | 1 + sysdeps/x86/tst-get-cpu-features.c | 1 + 3 files changed, 5 insertions(+) diff --git a/manual/platform.texi b/manual/platform.texi index a6e33b1572..be04194c88 100644 --- a/manual/platform.texi +++ b/manual/platform.texi @@ -406,6 +406,9 @@ the indirect branch predictor barrier (IBPB). @item @code{LAM} -- Linear Address Masking. +@item +@code{LASS} -- Linear Address Space Separation. + @item @code{LBR} -- Architectural LBR. diff --git a/sysdeps/x86/bits/platform/x86.h b/sysdeps/x86/bits/platform/x86.h index 6fc3b69651..c9ee8fcf90 100644 --- a/sysdeps/x86/bits/platform/x86.h +++ b/sysdeps/x86/bits/platform/x86.h @@ -291,6 +291,7 @@ enum x86_cpu_RAO_INT = x86_cpu_index_7_ecx_1_eax + 3, x86_cpu_AVX_VNNI = x86_cpu_index_7_ecx_1_eax + 4, x86_cpu_AVX512_BF16 = x86_cpu_index_7_ecx_1_eax + 5, + x86_cpu_LASS = x86_cpu_index_7_ecx_1_eax + 6, x86_cpu_FZLRM = x86_cpu_index_7_ecx_1_eax + 10, x86_cpu_FSRS = x86_cpu_index_7_ecx_1_eax + 11, x86_cpu_FSRCS = x86_cpu_index_7_ecx_1_eax + 12, diff --git a/sysdeps/x86/tst-get-cpu-features.c b/sysdeps/x86/tst-get-cpu-features.c index 6a3f29db98..9da561a559 100644 --- a/sysdeps/x86/tst-get-cpu-features.c +++ b/sysdeps/x86/tst-get-cpu-features.c @@ -203,6 +203,7 @@ do_test (void) CHECK_CPU_FEATURE_PRESENT (RAO_INT); CHECK_CPU_FEATURE_PRESENT (AVX_VNNI); CHECK_CPU_FEATURE_PRESENT (AVX512_BF16); + CHECK_CPU_FEATURE_PRESENT (LASS); CHECK_CPU_FEATURE_PRESENT (FZLRM); CHECK_CPU_FEATURE_PRESENT (FSRS); CHECK_CPU_FEATURE_PRESENT (FSRCS);