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h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=EkXoEdxdufurf2ejP3e8GacLs23Ir9io+Z1Sq4qTFZSM3vx/dnPIclnY0aKAhVf3L x+rFw38ymOqlv0+Gluk6x35UhNsJoOTE4JIqLJTsY1KDQ2lnKMZ3Q1tenbovMOq0Pd 7VBdUa7hAnsACpceW24rSuCol+Ca86eL9vjc9T5U= Date: Wed, 15 May 2024 07:34:07 +0200 From: Greg Kroah-Hartman To: Yuanchu Xie Cc: Wei Liu , Rob Bradford , Theodore Ts'o , Pasha Tatashin , Jonathan Corbet , Thomas Zimmermann , Dan Williams , Tom Lendacky , Kuppuswamy Sathyanarayanan , linux-kernel@vger.kernel.org, linux-mm@kvack.org, virtualization@lists.linux.dev, dev@lists.cloudhypervisor.org Subject: Re: [RFC PATCH v1 1/2] virt: memctl: control guest physical memory properties Message-ID: <2024051533-cyclic-unshipped-5599@gregkh> References: <20240514020301.1835794-1-yuanchu@google.com> <2024051414-untie-deviant-ed35@gregkh> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Rspamd-Queue-Id: 5FDBC4000F X-Stat-Signature: eh4ah5qtrwgur93soq37k91etz8mxyz4 X-Rspam-User: X-Rspamd-Server: rspam04 X-HE-Tag: 1715751256-832997 X-HE-Meta: U2FsdGVkX1+OvgegcX4cbVag/dy4vxtviZnrZ0H9JTlj/UAyAzyDChN0+wqfbtoo6ZOy7PGg9lzhU1LHEW7GH7cDg0dnnHtWtcPr8izSiyJHAKtPLAGOvRosyy+3cjmyvXzVuBWnUgXCDLg1kchRa5y5zVjqL4UDKjE92WO0h/yfR3lYe4C0gznlim3Bvh/mB95EFmOiTwDDfFWBr6/MizvlVSCBhXPrxz4E7vCQ9Pk+NLZd31MWgpguA77fDON8dDjc9e0bTrOkQo0hXyKYwDuTktH2CIfHvrysZ7ec1FM4H3g2/1WuiO6/7oWGv89LCbJIwzyDeivulldTpSVZHOFdcA2qurWPyY8lSgxepcT2fr1nP3IF/Vy9jq5PTzlq11sSUpD1+dcRNxWfXMZ21KCox7EniKlSFhuI8CAvpgK8RLKONH/KvsYeQmbV3cVQPzD0ThSIzfxvJeEo67Ga2XG3i73G/YwtlCeLGSFlsc08kOrMlhB8Xv9S1+UjTWyl6YT0nI4pyhWYf2/4XOg5Y/p4ErjbY5odgLBAbOSJRil/slymDLCgFjfe7R5uGeuvHrbT8MLEyugGnqSHx5tONQ87kWmfCWngyPikVMoiTNxdS5oTcc1J1/77XkZTIKinaYzlm88+RPyo9G6LjLc59kt6qt3Y32F7i5QOZOT3s+yvYQr5RYYHjTQzMyGyRnG5pyWioJn5QKPTNJT4EZu6cpRN4a0eKNh+Hsn318/5urfmFR7qIM68WReWoQhjQAm6GGNDaJIFgi5Y1jaCCH9UItqUygOC8mygiNC6+/uv7nBTGBbDPDQtfa+XoYemxzKo2AFL8KpadzYlUqI6C6ryQyO22kfL4DOhAoitliPfpEjMtt7Uh8vNW5Jsg4cvhOhHS4qKimcq71skl2hJO8wV9xBwpuRvmlzRx8TDJFlndRTXjUi758qCFeJS1QxAaRLkJRWDdNIfwjJYb1ljQxO 24LvK6jd YDhmHCzMmUg+2f7p5hrRXl+HTER8XVSq3ThKMu/K6auNPhfVLRiyrzkud8g66cmRsV31OGx4hkQzpffwkPqn0J/4g+iq+V8dKO8+xYWUm/H/htXB21JE9s1jQCvvdGY6zYAk+PG9+aVI5zWcm40sI/Oo7SgBtHUCH58TeNY8PknVDX2nE7XARuGq//ov6LHmiEqtfbWWKlp4B95c9ufQDN60UQHcLQmvnrsgHr/j2B9w2mQ8ajV6YiOSoBZRxdTi7X2e+EJEriGVP9bG3RFqVmHaej1Z5bedyE79mqfpe5PffJ/K3vsnDszBQtFgXi5IDMfQTBAb7idJWsO8= 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 Tue, May 14, 2024 at 06:21:57PM -0700, Yuanchu Xie wrote: > On Tue, May 14, 2024 at 9:06 AM Greg Kroah-Hartman > wrote: > > > > On Mon, May 13, 2024 at 07:03:00PM -0700, Yuanchu Xie wrote: > > > Memctl provides a way for the guest to control its physical memory > > > properties, and enables optimizations and security features. For > > > example, the guest can provide information to the host where parts of a > > > hugepage may be unbacked, or sensitive data may not be swapped out, etc. > > >... > > Pretty generic name for a hardware-specific driver :( > It's not for real hardware btw. Its use case is similar to pvpanic > where the device is emulated by the VMM. I can change the name if it's > a problem. This file is only used for a single PCI device, that is very hardware-specific even if that hardware is "fake" :) Please make the name more specific as well. thanks, greg k-h