From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from terminus.zytor.com ([198.137.202.136] helo=mail.zytor.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fx4z3-0006Pp-L0 for kexec@lists.infradead.org; Tue, 04 Sep 2018 06:38:42 +0000 Subject: Re: [PATCH 1/3] x86/boot: Add bit fields into xloadflags for 5-level kernel checking References: <20180829141624.13985-1-bhe@redhat.com> <20180829141624.13985-2-bhe@redhat.com> <6ea94875-ae07-6220-eb3e-d3f830cdac03@zytor.com> <20180904034414.GI1740@192.168.1.3> <4546fc39-4982-4c91-c812-0df1e9bc9e20@zytor.com> <20180904052036.GJ1740@192.168.1.3> <20180904060649.GK1740@192.168.1.3> From: "H. Peter Anvin" Message-ID: <44fc1530-eb88-d8c5-7465-e48c91799a98@zytor.com> Date: Mon, 3 Sep 2018 23:36:11 -0700 MIME-Version: 1.0 In-Reply-To: <20180904060649.GK1740@192.168.1.3> Content-Language: en-US List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: Baoquan He , kirill.shutemov@linux.intel.com Cc: tglx@linutronix.de, x86@kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, mingo@kernel.org On 09/03/18 23:06, Baoquan He wrote: >> >> That makes no sense. I'm talking about *entering* the kernel; the second >> kernel should switch to 5-level mode as necessary. > > OK, I didn't get your point. I forget what difficulty was met so that > Kirill need to take this way. In that way, we will never have chance to > put kernel above 64TB even from 5-level kernel to jump to 5-level > kernel. > It sounds like you have no intent of doing that anyway? Now, that is something one could use an xloadflag for, as I previously stated: "this kernel supports being entered in 5-level mode." -hpa _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec