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Peter Anvin" , Fenghua Yu , Rick Edgecombe , x86@kernel.org, linux-kernel@vger.kernel.org, nvdimm@lists.linux.dev, linux-mm@kvack.org References: <20210804043231.2655537-1-ira.weiny@intel.com> <20210804043231.2655537-15-ira.weiny@intel.com> From: Randy Dunlap Message-ID: <2bbd7ce2-8d16-8724-5505-96a4731c3c45@infradead.org> Date: Tue, 3 Aug 2021 21:57:31 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: <20210804043231.2655537-15-ira.weiny@intel.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: A340B9009F15 Authentication-Results: imf28.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=dlkbK9YG; dmarc=none; spf=none (imf28.hostedemail.com: domain of rdunlap@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=rdunlap@infradead.org X-Stat-Signature: wxx7k8jsmjoqhiu64ey5g9xkbppxame9 X-HE-Tag: 1628053089-513009 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: On 8/3/21 9:32 PM, ira.weiny@intel.com wrote: > diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt > index bdb22006f713..7902fce7f1da 100644 > --- a/Documentation/admin-guide/kernel-parameters.txt > +++ b/Documentation/admin-guide/kernel-parameters.txt > @@ -4081,6 +4081,20 @@ > pirq= [SMP,APIC] Manual mp-table setup > See Documentation/x86/i386/IO-APIC.rst. > > + memremap.pks_fault_mode= [X86] Control the behavior of page map > + protection violations. Violations may not be an actual > + use of the memory but simply an attempt to map it in an > + incompatible way. > + (depends on CONFIG_DEVMAP_ACCESS_PROTECTION Missing closing ')' above. > + > + Format: { relaxed | strict } > + > + relaxed - Print a warning, disable the protection and > + continue execution. > + strict - Stop kernel execution via BUG_ON or fault > + > + default: relaxed > + -- ~Randy