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b=pFcxALcKxbGfPOXU6jl11AI5j70DY3GzkB3VavJQ8ZlP+ZbFdyUw2vNOqThHcLzu/ /GPFvJl0xWEhLxkz8YVAOvYkrqK/Rn6YyCse+wrvOL4DujdiBGxmMDpfo6SnAN4wwb etVVvPYOAwkB4w0QvDSsFTPw7Re5IRsadi1m3UhYANYlNtuVSxOM80ku9tGoddJJOh I398yJQxGOzIMpgjO2wvkROaHfZpvJMRGixyeTM4CqdXoLIay3J5s1Gd3qCfke/lcn TRxhlF7eZ1xXJRLlMXYfy21PY0gFifnNLCfFt/1UN8D2auos2yinyUH7wZAUzu9N9H wljpJKETg73Cg== From: Pratyush Yadav To: Pasha Tatashin Cc: akpm@linux-foundation.org, bhe@redhat.com, rppt@kernel.org, jasonmiu@google.com, arnd@arndb.de, coxu@redhat.com, dave@vasilevsky.ca, ebiggers@google.com, graf@amazon.com, kees@kernel.org, linux-kernel@vger.kernel.org, kexec@lists.infradead.org, linux-mm@kvack.org Subject: Re: [PATCH v1 12/13] kho: Add Kconfig option to enable KHO by default In-Reply-To: <20251114155358.2884014-13-pasha.tatashin@soleen.com> (Pasha Tatashin's message of "Fri, 14 Nov 2025 10:53:57 -0500") References: <20251114155358.2884014-1-pasha.tatashin@soleen.com> <20251114155358.2884014-13-pasha.tatashin@soleen.com> Date: Fri, 14 Nov 2025 18:34:09 +0100 Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 4FB7BC000C X-Stat-Signature: 1i16pomr434qd6q69ioi3jgb5uo7t789 X-Rspam-User: X-HE-Tag: 1763141654-729249 X-HE-Meta: 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 jTqiKBzz wDKKHMDkgy184WuiGQN7Jz6aO6O67RkWwhkn5UY01rbwoM3BHQyXjFXFGBbmmmJ1xUy6mPlpl0JhbCgvHoAObdRUKcIvnHJZGzTha4RL61vKOCM2nR1GCkn2NCYB8hfz0AmxpOkV4Aa85bM39rroN+XAOcWEIui3fvZtanl3lXcd6NAM2ULL+ydgF6lCyCHVEELRJspMlOyhZAiUmctQRj0c5tTDP9Gbk+1dQzZy/oCz8kDpSj5ex/388MugdvyNRZkuc 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 Fri, Nov 14 2025, Pasha Tatashin wrote: > Currently, Kexec Handover must be explicitly enabled via the kernel > command line parameter `kho=on`. > > For workloads that rely on KHO as a foundational requirement (such as > the upcoming Live Update Orchestrator), requiring an explicit boot > parameter adds redundant configuration steps. > > Introduce CONFIG_KEXEC_HANDOVER_ENABLE_DEFAULT. When selected, KHO > defaults to enabled. This is equivalent to passing kho=on at boot. > The behavior can still be disabled at runtime by passing kho=off. > > Signed-off-by: Pasha Tatashin Reviewed-by: Pratyush Yadav [...] -- Regards, Pratyush Yadav