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[54.240.197.227]) by smtp.gmail.com with ESMTPSA id t13-20020a5d534d000000b0032d9548240fsm1114969wrv.82.2023.10.27.00.20.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 27 Oct 2023 00:20:21 -0700 (PDT) Message-ID: <94b54185-7ae6-48f9-976c-f4213a3643d0@gmail.com> Date: Fri, 27 Oct 2023 08:20:19 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 06/28] hw/xen: take iothread mutex in xen_evtchn_reset_op() Content-Language: en-US To: David Woodhouse , qemu-devel@nongnu.org Cc: Kevin Wolf , Hanna Reitz , Stefano Stabellini , Anthony Perard , Paul Durrant , =?UTF-8?Q?Marc-Andr=C3=A9_Lureau?= , Paolo Bonzini , "Michael S. Tsirkin" , Marcel Apfelbaum , Richard Henderson , Eduardo Habkost , Jason Wang , Marcelo Tosatti , qemu-block@nongnu.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Bernhard Beschow , Joel Upham References: <20231025145042.627381-1-dwmw2@infradead.org> <20231025145042.627381-7-dwmw2@infradead.org> From: "Durrant, Paul" In-Reply-To: <20231025145042.627381-7-dwmw2@infradead.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2a00:1450:4864:20::432; envelope-from=xadimgnik@gmail.com; helo=mail-wr1-x432.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, FREEMAIL_FROM=0.001, 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: , Reply-To: paul@xen.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 25/10/2023 15:50, David Woodhouse wrote: > From: David Woodhouse > > The xen_evtchn_soft_reset() function requires the iothread mutex, but is > also called for the EVTCHNOP_reset hypercall. Ensure the mutex is taken > in that case. > > Fixes: a15b10978fe6 ("hw/xen: Implement EVTCHNOP_reset") > Signed-off-by: David Woodhouse > --- > hw/i386/kvm/xen_evtchn.c | 1 + > 1 file changed, 1 insertion(+) > Reviewed-by: Paul Durrant