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h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=7XT7jZZ1KVvwJQprqHTVEfavipuUF6Dnl96nB3egJmI=; b=ik3V8YLfebdDebGBpMVhLVEQIG+8u7zvmimEk/RkWj75QfmEktSFmcNRJh326WuTCi 0Km4tnt0iUNR0O+wfA55z1eWWqPaZxNVC/d8dq/XF4Yi/QB/uvmhPV11XgBqdanRymAs cY4382qETOj52ybPj1C8HTRISeTc6kBGCt5qKbT33nmWiSDD0rDRNpGepRs5lbmYwK8p mD7nUfqMp+hkTjypKlflSlFlH7MBfwP7c9QbFTR5xvmPJ3acnpS7abY6kXvMYhOq5UTq glMv6pACJ/Rl8j9o1A9O0KnFd6o51klp0s39PahD+B251lWH2r6MCXAdWUJ/ebwhrTne THug== X-Gm-Message-State: AJcUukcW7HGQ/6euKwDazah0xZOIHe0/EG1xBolBTaHSY9qpUKMbn0yX t9KB/pvvr2fus6oWXFwxd/RjmeZPGwuqO68T+yFgjg== X-Google-Smtp-Source: ALg8bN44DvQCdxWT4wJ5kHWaz4SBhYyIyXo9PX2yiG3/ACbRNwwKp8CKMRcrrmcFKDEtNM9Nx05xSHXq4DEzTdr9ET0= X-Received: by 2002:a05:660c:4b:: with SMTP id p11mr4988806itk.71.1547625087024; Tue, 15 Jan 2019 23:51:27 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Ard Biesheuvel Date: Wed, 16 Jan 2019 08:51:16 +0100 Message-ID: Subject: Re: [PATCH] arm64: kaslr: Reserve size of ARM64_MEMSTART_ALIGN in linear region To: Yueyi Li X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190115_235128_884698_4809712B X-CRM114-Status: GOOD ( 16.16 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "catalin.marinas@arm.com" , "markus@oberhumer.com" , "will.deacon@arm.com" , "linux-kernel@vger.kernel.org" , "akpm@linux-foundation.org" , "linux-arm-kernel@lists.infradead.org" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, 16 Jan 2019 at 04:37, Yueyi Li wrote: > > OK, thanks. But seems this mail be ignored, do i need re-sent the patch? > > On 2018/12/26 21:49, Ard Biesheuvel wrote: > > On Tue, 25 Dec 2018 at 03:30, Yueyi Li wrote: > >> Hi Ard, > >> > >> > >> On 2018/12/24 17:45, Ard Biesheuvel wrote: > >>> Does the following change fix your issue as well? > >>> > >>> index 9b432d9fcada..9dcf0ff75a11 100644 > >>> --- a/arch/arm64/mm/init.c > >>> +++ b/arch/arm64/mm/init.c > >>> @@ -447,7 +447,7 @@ void __init arm64_memblock_init(void) > >>> * memory spans, randomize the linear region as well. > >>> */ > >>> if (memstart_offset_seed > 0 && range >= ARM64_MEMSTART_ALIGN) { > >>> - range = range / ARM64_MEMSTART_ALIGN + 1; > >>> + range /= ARM64_MEMSTART_ALIGN; > >>> memstart_addr -= ARM64_MEMSTART_ALIGN * > >>> ((range * memstart_offset_seed) >> 16); > >>> } > >> Yes, it can fix this also. I just think modify the first *range* > >> calculation would be easier to grasp, what do you think? > >> > > I don't think there is a difference, to be honest, but I will leave it > > up to the maintainers to decide which approach they prefer. > No it has been merged already. It is in v5.0-rc2 I think. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel