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[37.24.206.209]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-5bd1968af77sm3591110a12.40.2024.08.14.01.28.35 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 14 Aug 2024 01:28:35 -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: 3384169a-5a17-11ef-a505-bb4a2ccca743 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=google; t=1723624116; x=1724228916; darn=lists.xenproject.org; h=content-transfer-encoding:autocrypt:content-language:cc:to:subject :from:user-agent:mime-version:date:message-id:from:to:cc:subject :date:message-id:reply-to; bh=6Nu4pPZi5zBW3bAq5eXnFW4GeiCLLJkowiSjAPbXk0A=; b=LMuN1ofZSaGI3Qx+e2hw8ywfqqOhuEJb+BMPkG47mFDX1Bl5rXXsNx46FCRZ/CZgbY U+Lx+CnCFXDH5OumfI1uHY7gbWiDDiv0aZPuE7FB2RRMoNDYfyBhFbwLJrEQukv3/4dr QrVp0PLTDE8/t1bM6nLQrZqa0+VOas93AjZR1shg8hsYU5fSgozY9JzHxHK/62mQoGOV xvJpcUn3ZuLMvUmsUcOHTEwYrFtoKOWx7IOSFOgPcmm1D1eG6KWxgpAFMs295QHXOgj6 BOFlH/aEiydoSccP3eryLXJwSbP94CgN7vwiyLsVwxEv3bC0taT0gRAK6M705lxjHBvd 2yKA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1723624116; x=1724228916; h=content-transfer-encoding:autocrypt:content-language:cc:to:subject :from:user-agent:mime-version:date:message-id:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=6Nu4pPZi5zBW3bAq5eXnFW4GeiCLLJkowiSjAPbXk0A=; b=r3Y/rqwHu4Sxoy6lX7LealSH/K9U+1LFORQyMRqMdX+B3njNJqPkLYus3GCaSGKg2H 5eAH8FZgsuB2uRKzIzqVR0Vka1YFDQhlm8DV8T82GOjGr3Zm3Xhpo5vuoB1SKOSZ5wrb ANS719XCkD7otbGEhxDJ3VFQTZ/TBTiLB+4gY4TI/m2x5tuVz3BcN9hAKDpOkSMyjoCA wv2a8KpGl5hh9bLX6E3/d/Ug4k1zbt/J8dkbMzWt+hPnt/Iud6tZpmlfFp4a9gQQPwfL AFWIVg8MOuPSYcUE2S+v7ZHr8zOjIAvmPguzMc0rFy2xXZLid5RzipXblqJKC11dGJ3k 4AmA== X-Gm-Message-State: AOJu0YxO/M8jisZMScfS5PuJ8hIZwlt1d5L6gZpGlm/0ejt8g9CKOZa9 TkBeGKjrExGllxw9WuSR/5e7VMCENyNwnuCywUFrscTSJwC2fPw/a8uhfJMgWfkozQqiFarE7cE = X-Google-Smtp-Source: AGHT+IFMiNfmATHueVOy0wRe/gQPpD2yaHzdlrEzRRIs6B2fvPRGiRKwTikAKXEvEZEPVCOrRdD6Ow== X-Received: by 2002:a05:6402:2742:b0:5a1:5c0c:cbd6 with SMTP id 4fb4d7f45d1cf-5bea5e53c6cmr1216959a12.8.1723624116048; Wed, 14 Aug 2024 01:28:36 -0700 (PDT) Message-ID: <2500a119-1734-44c2-9868-640bcc8ead2d@suse.com> Date: Wed, 14 Aug 2024 10:28:34 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Jan Beulich Subject: [PATCH v5 0/3] x86/CPUID: leaf pruning To: "xen-devel@lists.xenproject.org" Cc: Andrew Cooper , Wei Liu , =?utf-8?q?Roger_Pau_Monn=C3=A9?= 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 These three related patches were previously part of the AMX series. For AVX10 some of this is going to be needed (or at least wanted) too, though, hence I'm now refreshing these separately. Neither of the three is strictly a functional prereq, but two of the three introduce new functions which then are further altered while adding AVX10 (and AMX) logic. Presumably none of these would be necessary anymore once toolstack side work planned by Andrew gets carried out. All taken together: Until it is clear that one or more of these are strictly not needed / wanted (in this or another form), having these ahead of the actual work seems preferable over accidentally losing adjustments done for AVX10 / AMX (and down the road perhaps others). 1: adjust extended leaves out of range clearing 2: shrink max_{,sub}leaf fields according to actual leaf contents 3: move bounding of max_{,sub}leaf fields to library code Jan