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[88.187.86.199]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-477975022ecsm209920935e9.4.2025.11.18.07.39.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 18 Nov 2025 07:39:54 -0800 (PST) Message-ID: <322d40f9-7c21-414b-a038-9a36b679f684@linaro.org> Date: Tue, 18 Nov 2025 16:39:53 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/2] target/loongarch: Fix some TLB flush issues Content-Language: en-US To: gaosong , Bibo Mao , Richard Henderson Cc: Jiaxun Yang , qemu-devel@nongnu.org References: <20251009025932.2990219-1-maobibo@loongson.cn> From: =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::335; envelope-from=philmd@linaro.org; helo=mail-wm1-x335.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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 14/10/25 12:01, gaosong wrote: > 在 2025/10/9 上午10:59, Bibo Mao 写道: >> There are two problems with TLB flush, one is that loongArch TLB entry >> should be invalidated with different ASID, the other is global TLB entry >> should be skippped when calculating replaced TLB entry. >> >> With these two patches, it improves VM boot time also. VM boot time from >> generic qcow file reduces to 300 seconds from previous 600 seconds. >> >> Bibo Mao (2): >>    target/loongarch: Add missing TLB flush with different asid >>    target/loongarch: Skip global TLB when calculating replaced TLB >> >>   target/loongarch/tcg/tlb_helper.c | 22 +++++++++++++--------- >>   1 file changed, 13 insertions(+), 9 deletions(-) >> >> >> base-commit: 37ad0e48e9fd58b170abbf31c18a994346f62ed7 > Reviewed-by: Song Gao Merged as 2e9ff01a912 & f72848e31fb.