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Mon, 3 Mar 2025 13:29:27 +0000 (UTC) Date: Mon, 3 Mar 2025 14:29:26 +0100 From: Borislav Petkov To: Rik van Riel 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 Subject: Re: [PATCH v14 00/13] AMD broadcast TLB invalidation Message-ID: <20250303132926.GFZ8WutnF7GXcUjPoB@fat_crate.local> References: <20250226030129.530345-1-riel@surriel.com> <20250303124214.GDZ8Wjpn7l4bOy8LYI@fat_crate.local> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20250303124214.GDZ8Wjpn7l4bOy8LYI@fat_crate.local> X-Rspamd-Queue-Id: D35CB4000F X-Stat-Signature: xyyt4b1woxf7kgp5iksj476ci5mhg6ir X-Rspam-User: X-Rspamd-Server: rspam05 X-HE-Tag: 1741008591-194387 X-HE-Meta: U2FsdGVkX19EyfnsBHOKLP0ya58dOOyIyNQMz2lwvV59GPsLOyR7QEwGlISHf00rPXFqfA//NeFpoIJ+odQmqi90onqD/yarzeWCVbL3uxg/Xfo34GutVMCKJoPfBmlGThCwO/VJQQ+fsKMYc3c9h15Z0jFyfXMAWRE8yBIhDrv5ZXD/SImlgPNWDN/rnJuIfVjQ6YmzoRBMBrT76u8ecrM66IDbnx7VbFMkK5GsizQpfIGoq+CEezHUHtxhYXdEN0sy+SURyrSUMIjz5c41m/8rKhFHgYHUIIciqLtqFkmgDawlmEGrgn1QnrqeKVITykHGocKmK95baunQ/M2qafpyCxZe8fdN8e7VN6UufiyePdcyQ7G47rnYcmVXifK3iWcZJG+hxida2JMLP/HtZabsXU5pAABA+VcrCYi5Xb0l2+w6+6knU+B+o2eAwM1Y4H8TSyy1o5XsDO7Kdtg6GhUxMq/xjWrZGFqRw1paGPgBdMfHGD1OQV+x1ZVrv493OsVxLXO26r8RRyDdAy4xRjLDXxnv3ENrxCL3IzWrmsNWAUGp5MswOWKGGE2akDCIp2heMikjPWPs0HeNj548YzjaPHCykq/KexXBTbYAE+YZ1UE3QGJ8VQN34cprXRwqk2mbGp1TwpM6VSPfqXceqg/68D6m6lPcMb4JBMFEiB/1JieOmj2wdqHAHEfzmPj71FKdBRoSgmj/O/8kQ3eNxaQYZKokW1WB2KPp7+cOe9LuHnasrvUhbltP3hg/hlFCRPtxaIDdPCYc3fzahFjXrfg8uzW6ERIkRhimAQJ/f8rTbrfgCULzPyYCNAkWcfa5kIQO/6+KrFwiLsMruGefbBpVqPTjSMmeDCBQIAzFFaCM0hE5YiwHZ+dJATCTy1m5Zf0df9a3TOevfpJhxk0iGbi+J7gQUM5YmAs3cMGYbUu8FITN3f8DiPHlA5kGvt1On73HPKDDDJVlAJ2IPGT bZnv8vmF 5Rq3yNuGuy1N6nLR6MqIcQIzBJPl2HbYiPQkWhX3zZZNhXhyQ4M3AJrehitmigcvAe27GxnqznZHNo1buijcVS053D7JvtvxtE9VFl8XX5isfXzqeltEsM37VGusVawvTMyQNgmVizOOsMPjpESYD+1xdnhl31UlBOtDXRG5aF/w9dZKQ+ihbgzkQUbSidizem3sjPy8GGnebs90kRGieZBUHpdGgnl1rHTUtp041inJyhRgpx8BZYQOK9c3qFnm1GIi06mhsF/sqIsqa+mMZrOIdTxCWK1mW5mPFyyaLhbv7tDLesMLBunBvCWRYCAoHtEikz4KTf6ORyoQ4AVo7L8RfOA== 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 Mon, Mar 03, 2025 at 01:42:14PM +0100, Borislav Petkov wrote: > On Tue, Feb 25, 2025 at 10:00:35PM -0500, Rik van Riel wrote: > > Add support for broadcast TLB invalidation using AMD's INVLPGB instruction. > > Ok, I've got the whole thing here now: > > https://web.git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git/log/?h=tip-x86-cpu-tlbi > > Lemme take it for a spin on my machines, see whether the cat catches fire... Well, it boots on Zen3 and 4, laptops and servers - although only server has the broadcast thing - but all look good. I guess ship it! :-) Srsly, I'll send out the whole set tomorrow to have it on the ML and see whether people have more opinions. Thx. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette