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[97.113.7.119]) by smtp.gmail.com with ESMTPSA id s5sm485197pfm.97.2019.08.28.16.16.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Aug 2019 16:16:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=g2Ys6FT3dAIWRm2+sxUDBYBh9aclrTTCcmC9pqtLRPs=; b=STphK/P731J0GmYktFaMQOTVo3Pflb9IUOw8II6nZn6jbPbD6UKAZ3OWJrb4oo3Ve+ y/bZALj+aPVbczYOkNHDntHtdUhLS6HHb9Pdblrtdzb4wXtffLaFW/E2moJ/fm99xIZ6 LeGeT1xZm31FxGtaWJNZ5yaVT5wuux56zhdBmAR4XuWUcj2j5imCTvmgX4hVWrhZ1RsE d9ekp8cvrKOMhnHR5L9kvtIogAeU3Fe2+NSNKbXjXPF1nv1SOmS0mo7psfCa5XVDEjZ9 fnB57d2H0nLUrfsGU6TR2wuQiX52JJxQNlK1PlWbTl1bs9wus/4tHfB0jO+ctPHY3Eud rZww== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=g2Ys6FT3dAIWRm2+sxUDBYBh9aclrTTCcmC9pqtLRPs=; b=DXUjKYw+GskDLpbb4saDFCIwuEJ5xWezQSp06WHP2oCGIIu+sHMoCe3ac58ACnPTw3 efbh8sr+KPLjAHDkl1X4YTJS/SLS3fwwWBy/3L5fQQwE9otPTD7pSRmcKsCoLpUEMOCQ Lq7bZ9RWHbnn3xqHXxrC/XrogL7hEG8Pe6F8a4EROI6LZsfoEwjxEE7T6Q1OTJO0vZAO 5qkh41/16K48BT149FoN8WT/8bx6MBYWOeVdHqPhODhlZeVEZcO0Q44UgDJEUAYPI3QN efe/cIStMzGmjrlWsoEYxSkoou7M/0VVc38yYeJIJTrQP204K/ngbGCwMOh5Ie737YSc /99w== X-Gm-Message-State: APjAAAVdqwN27r4f+p1h9seTeLMOEGJIZy69RbGdLFwl3jRi7LHOC+sB aXTS7aLoZVnFMa29yvNHq+yB0IM0esY= X-Google-Smtp-Source: APXvYqyhZQiiEP5ypT+SjIzunCjNc5KtTSdQQGWBRcctQByz8zmDXd/UGqNRhqwufrf2akmJsoonQw== X-Received: by 2002:a17:90a:f011:: with SMTP id bt17mr6700083pjb.21.1567034219275; Wed, 28 Aug 2019 16:16:59 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Wed, 28 Aug 2019 16:16:48 -0700 Message-Id: <20190828231651.17176-6-richard.henderson@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190828231651.17176-1-richard.henderson@linaro.org> References: <20190828231651.17176-1-richard.henderson@linaro.org> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::542 Subject: [Qemu-devel] [PATCH v2 5/8] cputlb: Fix size operand for tlb_fill on unaligned store X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: david@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" We are currently passing the size of the full write to the tlb_fill for the second page. Instead pass the real size of the write to that page. This argument is unused within all tlb_fill, except to be logged via tracing, so in practice this makes no difference. But in a moment we'll need the value of size2 for watchpoints, and if we've computed the value we might as well use it. Signed-off-by: Richard Henderson Reviewed-by: David Hildenbrand Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- accel/tcg/cputlb.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index c9576bebcf..7fb67d2f05 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -1504,6 +1504,8 @@ store_helper(CPUArchState *env, target_ulong addr, ui= nt64_t val, uintptr_t index2; CPUTLBEntry *entry2; target_ulong page2, tlb_addr2; + size_t size2; + do_unaligned_access: /* * Ensure the second page is in the TLB. Note that the first page @@ -1511,13 +1513,14 @@ store_helper(CPUArchState *env, target_ulong addr, = uint64_t val, * cannot evict the first. */ page2 =3D (addr + size) & TARGET_PAGE_MASK; + size2 =3D (addr + size) & ~TARGET_PAGE_MASK; index2 =3D tlb_index(env, mmu_idx, page2); entry2 =3D tlb_entry(env, mmu_idx, page2); tlb_addr2 =3D tlb_addr_write(entry2); if (!tlb_hit_page(tlb_addr2, page2) && !victim_tlb_hit(env, mmu_idx, index2, tlb_off, page2 & TARGET_PAGE_MASK)) { - tlb_fill(env_cpu(env), page2, size, MMU_DATA_STORE, + tlb_fill(env_cpu(env), page2, size2, MMU_DATA_STORE, mmu_idx, retaddr); } =20 --=20 2.17.1