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Fri, 17 Oct 2025 19:52:27 +0000 Message-ID: Date: Fri, 17 Oct 2025 12:52:24 -0700 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v10 00/15] x86: Enable Linear Address Space Separation support Content-Language: en-US To: "Edgecombe, Rick P" , "tglx@linutronix.de" , "mingo@redhat.com" , "bp@alien8.de" , "x86@kernel.org" , "dave.hansen@linux.intel.com" CC: "corbet@lwn.net" , "ardb@kernel.org" , "david.laight.linux@gmail.com" , "luto@kernel.org" , "jpoimboe@kernel.org" , "andrew.cooper3@citrix.com" , "Luck, Tony" , "alexander.shishkin@linux.intel.com" , "kas@kernel.org" , "seanjc@google.com" , "rdunlap@infradead.org" , "dwmw@amazon.co.uk" , "vegard.nossum@oracle.com" , "xin@zytor.com" , "linux-kernel@vger.kernel.org" , "linux-doc@vger.kernel.org" , "kees@kernel.org" , "hpa@zytor.com" , "peterz@infradead.org" , "linux-efi@vger.kernel.org" , "geert@linux-m68k.org" References: <20251007065119.148605-1-sohil.mehta@intel.com> <27fe1dedb151a606ae46ae3c2bccd80b9a64ff07.camel@intel.com> From: Sohil Mehta In-Reply-To: <27fe1dedb151a606ae46ae3c2bccd80b9a64ff07.camel@intel.com> Content-Type: text/plain; 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For a user mode > kernel address range access, the kernel can deliver a signal that provides the > exception type and the address. Before it was #PF, now a #GP with no address. > That's right. With LASS, the SIG_SEGV will be delivered with without any address information to userspace. But these are illegal accesses anyway, so it probably doesn't matter much. I'll include a note in the patch that updates the #GP handler. Thanks Rick, for the review tags and general thoughts on the series. Apart from the minor change in Patch 5 (regarding CR pinning), I have mainly gathered improvements to the commit message and code comments. Is there any other feedback?