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[37.24.206.209]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-5c3ebd76ef0sm5363597a12.63.2024.09.11.05.30.25 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 11 Sep 2024 05:30:25 -0700 (PDT) X-Outflank-Mailman: Message body and most headers restored to incoming version 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: 9f98a40c-7039-11ef-a0b5-8be0dac302b0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=google; t=1726057826; x=1726662626; darn=lists.xenproject.org; h=content-transfer-encoding:in-reply-to:autocrypt:content-language :references:cc:to:from:subject:user-agent:mime-version:date :message-id:from:to:cc:subject:date:message-id:reply-to; bh=E/VQYJObNEPJuFiaAletJaE9AeVmIbCDaMEcMMCWqBY=; b=IMQP/f+5X6bEi8aP5gUHuOfkirROK9CW/kxaKInqoOGb355MlSe4zA8eXdzR46PKOg Y+rJqNK6kw+6gs48//XO1dSiOtmeuCTLGgG6798QnDrsLoBOiHNrRH5vBqlD0O2BNBLi rxXtC6oR4mdCTGGpYsG7jTHn/V3OrqIkZC6wPU8OCxf3nRSX7ujy1FkJMxsxtylZH+aT rPEXYulVEoWG7u0Pwd3yr7+qgqRyJKLDKNNYvsMLm8zAH++NW+P+t2L6ItuQDXuj3Ob5 kV4ljG9nczQw1Us20QN6gq3WiECN5CvEDvXdQD+1dcASUaBo/q9DiaZYco+rIt+gnlmh tpZQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1726057826; x=1726662626; h=content-transfer-encoding:in-reply-to:autocrypt:content-language :references:cc:to:from:subject:user-agent:mime-version:date :message-id:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=E/VQYJObNEPJuFiaAletJaE9AeVmIbCDaMEcMMCWqBY=; b=A8rFNOJ4U5JYuxViZ+HjB3vdK2torImCaQAwHz8slt75mponceMOi2zKWk2c+6INl8 Tw1amKsUZ2DX3JtXbpR3tZU8jQMjSM9biwV4J6BGkCbC9UbURVv48UM4qk3eP+CUud+C NgjmRtfAbwzA3dKtWO2TQAhZS0qgOeFCreM/BZw7grFl3h8WR7icRW1RYF09UVhIR1dB rUiIwtOMyPKWZnRppislic+uFV8umW0ZA2YHlcgEUa7ViWojmSeZqTD67iruqn2PVYrs r+cZFynsX3mOyYfColoKnbTDvtKW0eL+9JinHDfF4m+lNikcBjpBFEhK7UX2115yDpHO +Zew== X-Gm-Message-State: AOJu0Yx6QxtK8/i5TD8j+S8VeX9m+0jmVx8A/zKF1L81rXxrgidO9Oyd Ndm/zo4hTamNp3eNxmTepHb+RwO4NVSacEW2H+q7ReluOopEQn2LhKkp3byE+dhmMjTK7EmstNM = X-Google-Smtp-Source: AGHT+IGlT/+XpcVikT9tpnst1rfGQd3lCpyul4pBf+CxxFz5rfPGloVQ/YNZyBF6afxQLQGB8QC8MQ== X-Received: by 2002:a05:6402:254a:b0:5c3:d1ce:261c with SMTP id 4fb4d7f45d1cf-5c3e9630f87mr9255606a12.13.1726057825990; Wed, 11 Sep 2024 05:30:25 -0700 (PDT) Message-ID: Date: Wed, 11 Sep 2024 14:30:25 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: [PATCH v2 9/9] x86/HVM: drop .complete hook for intercept handling From: Jan Beulich To: "xen-devel@lists.xenproject.org" Cc: Andrew Cooper , =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= References: Content-Language: en-US Autocrypt: addr=jbeulich@suse.com; keydata= xsDiBFk3nEQRBADAEaSw6zC/EJkiwGPXbWtPxl2xCdSoeepS07jW8UgcHNurfHvUzogEq5xk hu507c3BarVjyWCJOylMNR98Yd8VqD9UfmX0Hb8/BrA+Hl6/DB/eqGptrf4BSRwcZQM32aZK 7Pj2XbGWIUrZrd70x1eAP9QE3P79Y2oLrsCgbZJfEwCgvz9JjGmQqQkRiTVzlZVCJYcyGGsD /0tbFCzD2h20ahe8rC1gbb3K3qk+LpBtvjBu1RY9drYk0NymiGbJWZgab6t1jM7sk2vuf0Py O9Hf9XBmK0uE9IgMaiCpc32XV9oASz6UJebwkX+zF2jG5I1BfnO9g7KlotcA/v5ClMjgo6Gl MDY4HxoSRu3i1cqqSDtVlt+AOVBJBACrZcnHAUSuCXBPy0jOlBhxPqRWv6ND4c9PH1xjQ3NP nxJuMBS8rnNg22uyfAgmBKNLpLgAGVRMZGaGoJObGf72s6TeIqKJo/LtggAS9qAUiuKVnygo 3wjfkS9A3DRO+SpU7JqWdsveeIQyeyEJ/8PTowmSQLakF+3fote9ybzd880fSmFuIEJldWxp Y2ggPGpiZXVsaWNoQHN1c2UuY29tPsJgBBMRAgAgBQJZN5xEAhsDBgsJCAcDAgQVAggDBBYC AwECHgECF4AACgkQoDSui/t3IH4J+wCfQ5jHdEjCRHj23O/5ttg9r9OIruwAn3103WUITZee e7Sbg12UgcQ5lv7SzsFNBFk3nEQQCACCuTjCjFOUdi5Nm244F+78kLghRcin/awv+IrTcIWF hUpSs1Y91iQQ7KItirz5uwCPlwejSJDQJLIS+QtJHaXDXeV6NI0Uef1hP20+y8qydDiVkv6l IreXjTb7DvksRgJNvCkWtYnlS3mYvQ9NzS9PhyALWbXnH6sIJd2O9lKS1Mrfq+y0IXCP10eS FFGg+Av3IQeFatkJAyju0PPthyTqxSI4lZYuJVPknzgaeuJv/2NccrPvmeDg6Coe7ZIeQ8Yj t0ARxu2xytAkkLCel1Lz1WLmwLstV30g80nkgZf/wr+/BXJW/oIvRlonUkxv+IbBM3dX2OV8 AmRv1ySWPTP7AAMFB/9PQK/VtlNUJvg8GXj9ootzrteGfVZVVT4XBJkfwBcpC/XcPzldjv+3 HYudvpdNK3lLujXeA5fLOH+Z/G9WBc5pFVSMocI71I8bT8lIAzreg0WvkWg5V2WZsUMlnDL9 mpwIGFhlbM3gfDMs7MPMu8YQRFVdUvtSpaAs8OFfGQ0ia3LGZcjA6Ik2+xcqscEJzNH+qh8V m5jjp28yZgaqTaRbg3M/+MTbMpicpZuqF4rnB0AQD12/3BNWDR6bmh+EkYSMcEIpQmBM51qM EKYTQGybRCjpnKHGOxG0rfFY1085mBDZCH5Kx0cl0HVJuQKC+dV2ZY5AqjcKwAxpE75MLFkr wkkEGBECAAkFAlk3nEQCGwwACgkQoDSui/t3IH7nnwCfcJWUDUFKdCsBH/E5d+0ZnMQi+G0A nAuWpQkjM1ASeQwSHEeAWPgskBQL In-Reply-To: Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @suse.com) X-ZM-MESSAGEID: 1726058259933116600 Content-Type: text/plain; charset="utf-8" No user of the hook exists anymore. While touching hvm_mmio_internal() also make direction of the request explicit - it only so happens that IOREQ_WRITE is zero. Yet it being a write is imperative for stdvga.c to "accept" the request. Requested-by: Andrew Cooper Signed-off-by: Jan Beulich Reviewed-by: Andrew Cooper --- v2: New. --- a/xen/arch/x86/hvm/intercept.c +++ b/xen/arch/x86/hvm/intercept.c @@ -240,21 +240,13 @@ static const struct hvm_io_handler *hvm_ int hvm_io_intercept(ioreq_t *p) { const struct hvm_io_handler *handler; - const struct hvm_io_ops *ops; - int rc; =20 handler =3D hvm_find_io_handler(p); =20 if ( handler =3D=3D NULL ) return X86EMUL_UNHANDLEABLE; =20 - rc =3D hvm_process_io_intercept(handler, p); - - ops =3D handler->ops; - if ( ops->complete !=3D NULL ) - ops->complete(handler); - - return rc; + return hvm_process_io_intercept(handler, p); } =20 struct hvm_io_handler *hvm_next_io_handler(struct domain *d) @@ -326,25 +318,15 @@ bool relocate_portio_handler(struct doma =20 bool hvm_mmio_internal(paddr_t gpa) { - const struct hvm_io_handler *handler; - const struct hvm_io_ops *ops; ioreq_t p =3D { .type =3D IOREQ_TYPE_COPY, .addr =3D gpa, .count =3D 1, .size =3D 1, + .dir =3D IOREQ_WRITE, /* for stdvga */ }; =20 - handler =3D hvm_find_io_handler(&p); - - if ( handler =3D=3D NULL ) - return 0; - - ops =3D handler->ops; - if ( ops->complete !=3D NULL ) - ops->complete(handler); - - return 1; + return hvm_find_io_handler(&p); } =20 /* --- a/xen/arch/x86/include/asm/hvm/io.h +++ b/xen/arch/x86/include/asm/hvm/io.h @@ -56,13 +56,11 @@ typedef int (*hvm_io_write_t)(const stru uint64_t data); typedef bool (*hvm_io_accept_t)(const struct hvm_io_handler *handler, const ioreq_t *p); -typedef void (*hvm_io_complete_t)(const struct hvm_io_handler *handler); =20 struct hvm_io_ops { hvm_io_accept_t accept; hvm_io_read_t read; hvm_io_write_t write; - hvm_io_complete_t complete; }; =20 int hvm_process_io_intercept(const struct hvm_io_handler *handler,