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d=hostedemail.com; s=arc-20220608; t=1740357372; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=nctWIR8s8WlFVo4UK0sIQfq32nkd7Et7wjNWkYgLwmA=; b=5bSzz/jj5Ca/RU7XQCLkd2p4zhGvj3iy1jzSw2vbBfoIodoPaNPpCmGhJyNQ5SFFzNPlKc zEeafoAzA4zx/cX5wilV42EYg/jqqFitckuRKe6Lbbtr6soB12t0mSiFCKVq/XJljo/AZ3 pe8OWBW2DdLBrG78lBugaWH3M3UHPhc= Received: from fangorn.home.surriel.com ([10.0.13.7]) by shelob.surriel.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.97.1) (envelope-from ) id 1tmMQ7-000000000X2-11bC; Sun, 23 Feb 2025 19:34:03 -0500 Message-ID: <79d279294bd9dc6e8385495b1ec9abfcfe03856a.camel@surriel.com> Subject: Re: [PATCH v13 14/14] x86/mm: add noinvlpgb commandline option From: Rik van Riel To: Borislav Petkov Cc: x86@kernel.org, linux-kernel@vger.kernel.org, peterz@infradead.org, dave.hansen@linux.intel.com, zhengqi.arch@bytedance.com, nadav.amit@gmail.com, thomas.lendacky@amd.com, kernel-team@meta.com, linux-mm@kvack.org, akpm@linux-foundation.org, jackmanb@google.com, jannh@google.com, mhklinux@outlook.com, andrew.cooper3@citrix.com, Manali.Shukla@amd.com, mingo@kernel.org Date: Sun, 23 Feb 2025 19:34:03 -0500 In-Reply-To: <20250223212917.GAZ7uTLZL7ygSHayYh@fat_crate.local> References: <20250223194943.3518952-1-riel@surriel.com> <20250223194943.3518952-15-riel@surriel.com> <20250223212917.GAZ7uTLZL7ygSHayYh@fat_crate.local> Autocrypt: addr=riel@surriel.com; 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charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.54.3 (3.54.3-1.fc41) MIME-Version: 1.0 X-Rspam-User: X-Rspamd-Queue-Id: 225364000F X-Rspamd-Server: rspam12 X-Stat-Signature: ubmpqapdxhyzrysqinb7nyfamo8i9sdp X-HE-Tag: 1740357371-22627 X-HE-Meta: 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 EdvHlH5f m2jDns0+wWCJ13H9bswIijNHyue3UIosr34aKc34/fs6fY3VQzaK9Y1+Tn/8MQ5TegkBzKlGzBiQCcP8DkFbltpbm9D7ZOgoBuONUzA18A3DkE8Ef33H4DQfI0FlsPN6wMNlFLhdzBo7FyifVClR6OL0Tlrupmi9G0aL/uCLuuKDsM5HDLJc4UW/MUejpJh1CA/tTo4hfR//bBis0CmdOrcO3j5iLR9yt88zxjbElEsU1HsoCo5lMUduSmnh9hMO5P9cYxLSz3JwNSe1td1M/SyO7F9Y7bggiiOf6bzFonhGE6jos0eso3r3nKX3FsNYI7sS1EYfusuxWMvaPhU0w3I8HEQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Sun, 2025-02-23 at 22:29 +0100, Borislav Petkov wrote: > On Sun, Feb 23, 2025 at 02:49:04PM -0500, Rik van Riel wrote: > > Add a "noinvlpgb" commandline option to disable AMD > > broadcast TLB flushing at boot time. >=20 > See if clearcpuid=3D works too pls. >=20 What specifically are the things you want me to test here? Just that clearcpuid=3D419 properly disables INVLPGB, or also whether clearcpuid=3D145 (PCID) also automatically disables INVLPGB? --=20 All Rights Reversed.