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[37.24.206.209]) by smtp.gmail.com with ESMTPSA id p18-20020a05600c359200b0041543b57ca2sm20552871wmq.21.2024.04.02.23.52.22 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 02 Apr 2024 23:52:22 -0700 (PDT) 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: b9290006-f186-11ee-afe5-a90da7624cb6 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=google; t=1712127143; x=1712731943; darn=lists.xenproject.org; h=content-transfer-encoding:in-reply-to:autocrypt:references:cc:to :from:content-language:subject:user-agent:mime-version:date :message-id:from:to:cc:subject:date:message-id:reply-to; bh=3+qUqKB+un59yKLHPEdTo21gCOCZ+f8bVdOltJwjCzM=; b=IBXhREWGHVslwoj8kMgyYlxxaixZs5l9gplMTL/DNYaz7U8hvK/jHOlX8PwWgMwHlI HxD7nDyiqLkUCfNBKGUmCgHxkDx8Ka21WMfK2+j8dIlh/0zugDwzWyRU/y4yLWK6T3Gc gNHPXaHPuA4zmXcOXesRtuXdICoX9nZTraSUO/A+sBp1xeahTqttDWhA1eyTJ4efboKX oHnE4AYya/hLQI3+7eUZZHL6ANg6u8E8HSO7C/iopeUS0CoKk39hcRBmJOvLpzp6ZRww U2iEU9d78k+99m179gff0OHRtFI1DXDYzsjwO7ECNle8kuiBJ16v3rx5TWw1J/QP94mo Ke8w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712127143; x=1712731943; h=content-transfer-encoding:in-reply-to:autocrypt:references:cc:to :from:content-language:subject:user-agent:mime-version:date :message-id:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=3+qUqKB+un59yKLHPEdTo21gCOCZ+f8bVdOltJwjCzM=; b=DL1fDrkyh6T5NG/PcibpPSSJGBTbbrwqnM+Fu/yrhRz5Y/R/Qs4hK67KhCIQOrGj+q PZhXS+CiuRERrGbFmTuYQ9BJB2VWHE9EdpoM/PmkSvEHHnb/0PT5GE5lsEp3HfOlZcNt zx8R6k1LgMqTULCkI5QIQi6fnxpqMPcKzbIPY0UbWVxKbvDiGVn7+HMcRxWXftvAZ/Wd 5bQ2EF02SWUYOoK8TVvudpGi9Voxv9rS9Vdup6Kc+crFvUoJwwGRPHTZGpUossBuweOW ePLw96vwX4tDOcSqVSo5mNvA4yJ3Z4Z84evMt8OtKFAG1po1mUX8ywb4g7P4asUc7Npx zhLA== X-Forwarded-Encrypted: i=1; AJvYcCVXVZBS6ovDf9ImMPZHTiICkHVM9LTLzXZCok2Mv8rMPgvkCGJAF4z/rKCEaoHbDY8h/MaFK7AktsHZjHlnLwjRJ7uM7ch4jHW9bwleN5w= X-Gm-Message-State: AOJu0YwEA4WUwzaCB/9RwDFt8uMZUOyDcX+H+XBjIm+89g/VsdMYXSh4 oZhl0ZZUJzN+SH/LRb8yX8K9L4nC4h1qx1RMMEuvDaSum6RRBcz178K5ocd6UQ== X-Google-Smtp-Source: AGHT+IHtrfeOEVxvU/A0oxGUdrVGFqYvWqvdr9+j7Fh6zTAOk0/wliQPhTKVgyM3FjDY6csjjENrgg== X-Received: by 2002:a2e:8610:0:b0:2d4:3d86:54e2 with SMTP id a16-20020a2e8610000000b002d43d8654e2mr8984668lji.27.1712127142709; Tue, 02 Apr 2024 23:52:22 -0700 (PDT) Message-ID: Date: Wed, 3 Apr 2024 08:52:21 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] Revert "evtchn: refuse EVTCHNOP_status for Xen-bound event channels" Content-Language: en-US From: Jan Beulich To: Andrew Cooper Cc: George Dunlap , Stefano Stabellini , Julien Grall , Daniel Smith , Xen-devel References: <20240402170612.2477791-1-andrew.cooper3@citrix.com> <11957460-0b2b-432d-ad92-38350306c9ff@suse.com> 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: <11957460-0b2b-432d-ad92-38350306c9ff@suse.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 03.04.2024 08:16, Jan Beulich wrote: > On 02.04.2024 19:06, Andrew Cooper wrote: >> Whether to return information about a xen-owned evtchn is a matter of policy, >> and it's not acceptable to short circuit the XSM on the matter. > > I can certainly accept this as one possible view point. As in so many cases > I'm afraid I dislike you putting it as if it was the only possible one. Further to this: Is there even a way to express the same denial in XSM? alloc_unbound_xen_event_channel() doesn't specifically "mark" such a channel, and (yes, it could in principle be open-coded in Flask code) consumer_is_xen() is private to event_channel.c. I also dare to question whether in SILO mode status information like this should be available. Jan