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[86.183.162.242]) by smtp.gmail.com with ESMTPSA id g18sm22818378wrw.61.2021.01.18.02.23.27 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 18 Jan 2021 02:23:28 -0800 (PST) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: bdfd8873-b3bb-4aae-9d27-92effe3042f1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:reply-to:to:cc:references:in-reply-to:subject:date:message-id :mime-version:content-transfer-encoding:thread-index :content-language; bh=Wkh3LJJdDpBb9FpTgsGivgFpuvS31ivBEhDVP/QqE1U=; b=cfskU2QccMxIE7E3YCqLpP9HfOljSt3qj4U8rA2/DvJuwRH0uLIRNoKZFyoydDJxb3 iMLgf7KdpATb3kV0aWhQjpwwrVrjiZYcuJ1yd+KfTO1EbrgeuBDpb3MAYT5+jOAdhbCx +WjbXX7Pfzlp2D40l47aRbmSJBd7mWfQ3CodskGYPqyi5OKCdtHx0kPkv2/BRZM3Ky0f Bp/2wtsH+RoJcjTxovx0xG7AVcDatej2uq6XJfXW1Zc10PJlDSvZCJWAMnqBA+gexyPp lqTU2zcWOiLEXYzlMO9LjvRGQzZZppgkxoMWfvBGPJ6rDMw5JxW3Z11k6v6R27dcGBb+ Co+w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:reply-to:to:cc:references:in-reply-to :subject:date:message-id:mime-version:content-transfer-encoding :thread-index:content-language; bh=Wkh3LJJdDpBb9FpTgsGivgFpuvS31ivBEhDVP/QqE1U=; b=szrJ6AsELBi4zymeMblCdl4r0cq9tWczfE4U/LATyvMto07kFgJITqAdbZVAvxngG2 gQv9B1/LFuuQP1QZxVC+NI0hw6I2aBODmueIXBDz87w3je0GFHQADyTvNSyK1IXAe+p1 X4nUx000CEq4dgn+LGP1gbIx3EEj9GD+u97D1Fj98Jzy3ULp5Vsrm9SM3tK+HzOnUxA+ l5slZuf7As58zzw4HAJG4ZDmL3mXPWMasOAt5mbqTHqOXRNx1QEJ7+pKgbWEsP8BM1hR q9jkUyTcZdp7ekoRcJ2Ac2EI7TOMzWgPMzfNNpFi6ygwwRQPmRRfy3J970bhe0X7orEd 9hwA== X-Gm-Message-State: AOAM533yBC7zZUpLozF7a8LETPe8lurSnqGnXU+NxJ1LyJPZwUb9NJ/O Vw8pSYHdl243rKU4OUDglIM= X-Google-Smtp-Source: ABdhPJz4pBprE1sjkEB7N3wOGk41tnY0K/iSQ1zbjsX2ZEsthLnS4/YW1dzAmC+ap81N3DMGE2G6/w== X-Received: by 2002:adf:82c8:: with SMTP id 66mr24923808wrc.420.1610965408983; Mon, 18 Jan 2021 02:23:28 -0800 (PST) From: Paul Durrant X-Google-Original-From: "Paul Durrant" Reply-To: To: "'Oleksandr Tyshchenko'" , Cc: "'Oleksandr Tyshchenko'" , "'Stefano Stabellini'" , "'Julien Grall'" , "'Volodymyr Babchuk'" , "'Julien Grall'" References: <1610488352-18494-1-git-send-email-olekstysh@gmail.com> <1610488352-18494-18-git-send-email-olekstysh@gmail.com> In-Reply-To: <1610488352-18494-18-git-send-email-olekstysh@gmail.com> Subject: RE: [PATCH V4 17/24] xen/ioreq: Introduce domain_has_ioreq_server() Date: Mon, 18 Jan 2021 10:23:27 -0000 Message-ID: <00d101d6ed83$f6604010$e320c030$@xen.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQJtR7ihpnpDvKGK8VeC26+r2ffFKQHvCu69qPD9H1A= Content-Language: en-gb > -----Original Message----- > From: Xen-devel On Behalf Of Oleksandr Tyshchenko > Sent: 12 January 2021 21:52 > To: xen-devel@lists.xenproject.org > Cc: Oleksandr Tyshchenko ; Stefano Stabellini ; > Julien Grall ; Volodymyr Babchuk ; Paul Durrant > ; Julien Grall > Subject: [PATCH V4 17/24] xen/ioreq: Introduce domain_has_ioreq_server() > > From: Oleksandr Tyshchenko > > This patch introduces a helper the main purpose of which is to check > if a domain is using IOREQ server(s). > > On Arm the current benefit is to avoid calling vcpu_ioreq_handle_completion() > (which implies iterating over all possible IOREQ servers anyway) > on every return in leave_hypervisor_to_guest() if there is no active > servers for the particular domain. > Also this helper will be used by one of the subsequent patches on Arm. > > Signed-off-by: Oleksandr Tyshchenko > CC: Julien Grall > [On Arm only] > Tested-by: Wei Chen > Reviewed-by: Paul Durrant