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([203.56.128.103]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1fd64d07ad9sm2067415ad.177.2024.07.18.18.07.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 18 Jul 2024 18:07:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1721351242; x=1721956042; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=lffTC77hfuBCBlcm53ysSfFxUjHJ9OXDuax++3VtjJ0=; b=gftxvehNrfN5FV6jZov2DcfkBumsBw37zrftGYDBZ1J8NhUQDznwtS41HFALXN/gCQ dG4V4vw52P+NKd/Za7IR1HG49ZqOBxeWpr9qlAXg+n3WMZ3GsCZlb9P86FNASAlVkws9 zi+qUE9W4VIjV0qFao2npxR63DAFsS5TuMhYa/bTocAyAvIu/Dh+yTcLc1D8u/Wi3UGn buZXhtLWoDJeBR7ZfuLUSGFVrp2s7FTgtYjyQ6b5qvJ53WPB8G2cYuSKoUePB+4HW2lm NcBbnDLd8WisInBv5LpYXbuDFuv6MNFG+AKqTyikIusHhd2mgXT6EkT/yggj8O0CXWTj Znww== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721351242; x=1721956042; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=lffTC77hfuBCBlcm53ysSfFxUjHJ9OXDuax++3VtjJ0=; b=d/GKL+4Q2DME17gt4kxAlGOADvEw2ixnLOtHHrdWvwob9wSkG8N2ghkRnBg799DLmT 2oGCQKtDCiM99ZNRmS4BHfcAjk8bGhvIBHawDt5GCM4DGQRnBzRnPxm0nmMCrM/1DwDU 7XV2l700o67IbQPNZMZ/XYeszq9eaACG5nd7tNaeHxS5l9V4JmZENTzzPXpltRNgawp5 lTywsKAb50g6zi/5Xbo9Fhngo52IFkaqNoCyor0/7TcvXeIpu8fs2MORL3Gn/WM6I8Nt eEW1h/b2mLBj87XqtPnn/FU7+i1QeD1+c2NRqz9N+2l2t65mbAOkPEE3eFF2rqnLVEfh x1qw== X-Gm-Message-State: AOJu0Yxl2+zE1m0cuu4UDKWajelydyhKd1SsIq7/jaa/ZfSrkype0Is0 ZybQ8HztFxrvYovHS6kbTifNv044in3jA9P8mqvcSrQQh4jqhgFPF0ERjJ26K0ekrDTHzSnWnvz v5Dc/TA== X-Google-Smtp-Source: AGHT+IERzcxqQd9TBc5XTG0h+EZpjTUk4fb4kk4jAFlNS2wKpK+1ohtWm9kb6U9kAdd4xseTrLC5Hg== X-Received: by 2002:a17:902:d506:b0:1fc:327a:1f48 with SMTP id d9443c01a7336-1fc4e1077a8mr63280235ad.12.1721351241529; Thu, 18 Jul 2024 18:07:21 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, qemu-ppc@nongu.org, qemu-s390x@nongnu.org, qemu-riscv@nongnu.org, Peter Maydell Subject: [PATCH v3 02/12] target/arm: Use set/clear_helper_retaddr in helper-a64.c Date: Fri, 19 Jul 2024 11:06:57 +1000 Message-ID: <20240719010707.1319675-3-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240719010707.1319675-1-richard.henderson@linaro.org> References: <20240719010707.1319675-1-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+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::629; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x629.google.com X-Spam_score_int: 37 X-Spam_score: 3.7 X-Spam_bar: +++ X-Spam_report: (3.7 / 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, RCVD_IN_SBL_CSS=3.335, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, SUSPICIOUS_RECIPS=2.51 autolearn=no 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1721351357918116300 Content-Type: text/plain; charset="utf-8" Use these in helper_dc_dva and the FEAT_MOPS routines to avoid a race condition with munmap in another thread. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- target/arm/tcg/helper-a64.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/target/arm/tcg/helper-a64.c b/target/arm/tcg/helper-a64.c index 0ea8668ab4..c60d2a7ec9 100644 --- a/target/arm/tcg/helper-a64.c +++ b/target/arm/tcg/helper-a64.c @@ -928,6 +928,8 @@ uint32_t HELPER(sqrt_f16)(uint32_t a, void *fpstp) =20 void HELPER(dc_zva)(CPUARMState *env, uint64_t vaddr_in) { + uintptr_t ra =3D GETPC(); + /* * Implement DC ZVA, which zeroes a fixed-length block of memory. * Note that we do not implement the (architecturally mandated) @@ -948,8 +950,6 @@ void HELPER(dc_zva)(CPUARMState *env, uint64_t vaddr_in) =20 #ifndef CONFIG_USER_ONLY if (unlikely(!mem)) { - uintptr_t ra =3D GETPC(); - /* * Trap if accessing an invalid page. DC_ZVA requires that we sup= ply * the original pointer for an invalid page. But watchpoints requ= ire @@ -971,7 +971,9 @@ void HELPER(dc_zva)(CPUARMState *env, uint64_t vaddr_in) } #endif =20 + set_helper_retaddr(ra); memset(mem, 0, blocklen); + clear_helper_retaddr(); } =20 void HELPER(unaligned_access)(CPUARMState *env, uint64_t addr, @@ -1120,7 +1122,9 @@ static uint64_t set_step(CPUARMState *env, uint64_t t= oaddr, } #endif /* Easy case: just memset the host memory */ + set_helper_retaddr(ra); memset(mem, data, setsize); + clear_helper_retaddr(); return setsize; } =20 @@ -1163,7 +1167,9 @@ static uint64_t set_step_tags(CPUARMState *env, uint6= 4_t toaddr, } #endif /* Easy case: just memset the host memory */ + set_helper_retaddr(ra); memset(mem, data, setsize); + clear_helper_retaddr(); mte_mops_set_tags(env, toaddr, setsize, *mtedesc); return setsize; } @@ -1497,7 +1503,9 @@ static uint64_t copy_step(CPUARMState *env, uint64_t = toaddr, uint64_t fromaddr, } #endif /* Easy case: just memmove the host memory */ + set_helper_retaddr(ra); memmove(wmem, rmem, copysize); + clear_helper_retaddr(); return copysize; } =20 @@ -1572,7 +1580,9 @@ static uint64_t copy_step_rev(CPUARMState *env, uint6= 4_t toaddr, * Easy case: just memmove the host memory. Note that wmem and * rmem here point to the *last* byte to copy. */ + set_helper_retaddr(ra); memmove(wmem - (copysize - 1), rmem - (copysize - 1), copysize); + clear_helper_retaddr(); return copysize; } =20 --=20 2.43.0