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Fri, 15 Aug 2025 05:27:16 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 7/7] target/arm: Enable FEAT_LSE128 for -cpu max Date: Fri, 15 Aug 2025 22:26:53 +1000 Message-ID: <20250815122653.701782-8-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250815122653.701782-1-richard.henderson@linaro.org> References: <20250815122653.701782-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::435; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x435.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1755260922323124100 Content-Type: text/plain; charset="utf-8" Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell --- linux-user/elfload.c | 1 + target/arm/tcg/cpu64.c | 2 +- docs/system/arm/emulation.rst | 1 + 3 files changed, 3 insertions(+), 1 deletion(-) diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 9f36ec06a4..85f67d3d44 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -923,6 +923,7 @@ uint64_t get_elf_hwcap2(void) GET_FEATURE_ID(aa64_sme_b16b16, ARM_HWCAP2_A64_SME_B16B16); GET_FEATURE_ID(aa64_sme_f16f16, ARM_HWCAP2_A64_SME_F16F16); GET_FEATURE_ID(aa64_sve_b16b16, ARM_HWCAP2_A64_SVE_B16B16); + GET_FEATURE_ID(aa64_lse128, ARM_HWCAP2_A64_LSE128); =20 return hwcaps; } diff --git a/target/arm/tcg/cpu64.c b/target/arm/tcg/cpu64.c index 35cddbafa4..370818d11b 100644 --- a/target/arm/tcg/cpu64.c +++ b/target/arm/tcg/cpu64.c @@ -1145,7 +1145,7 @@ void aarch64_max_tcg_initfn(Object *obj) t =3D FIELD_DP64(t, ID_AA64ISAR0, SHA1, 1); /* FEAT_SHA1 */ t =3D FIELD_DP64(t, ID_AA64ISAR0, SHA2, 2); /* FEAT_SHA512 */ t =3D FIELD_DP64(t, ID_AA64ISAR0, CRC32, 1); /* FEAT_CRC32 */ - t =3D FIELD_DP64(t, ID_AA64ISAR0, ATOMIC, 2); /* FEAT_LSE */ + t =3D FIELD_DP64(t, ID_AA64ISAR0, ATOMIC, 3); /* FEAT_LSE, FEAT_LSE1= 28 */ t =3D FIELD_DP64(t, ID_AA64ISAR0, RDM, 1); /* FEAT_RDM */ t =3D FIELD_DP64(t, ID_AA64ISAR0, SHA3, 1); /* FEAT_SHA3 */ t =3D FIELD_DP64(t, ID_AA64ISAR0, SM3, 1); /* FEAT_SM3 */ diff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst index 890dc6fee2..a5c0e61393 100644 --- a/docs/system/arm/emulation.rst +++ b/docs/system/arm/emulation.rst @@ -88,6 +88,7 @@ the following architecture extensions: - FEAT_LRCPC2 (Load-acquire RCpc instructions v2) - FEAT_LSE (Large System Extensions) - FEAT_LSE2 (Large System Extensions v2) +- FEAT_LSE128 (128-bit Atomics) - FEAT_LVA (Large Virtual Address space) - FEAT_MixedEnd (Mixed-endian support) - FEAT_MixedEndEL0 (Mixed-endian support at EL0) --=20 2.43.0