From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Jones Subject: Re: [PATCH 12/12] EFI: Runtime services virtual mapping Date: Mon, 14 Oct 2013 11:57:26 -0400 Message-ID: <20131014155725.GD19665@fenchurch.internal.datastacks.com> References: <1379602494-26684-1-git-send-email-bp@alien8.de> <20131008164831.GD16793@pd.tnic> <20131010080635.GA3692@dhcp-16-126.nay.redhat.com> <20131010081434.GB3692@dhcp-16-126.nay.redhat.com> <20131010085827.GA9929@pd.tnic> <20131010123453.GA12321@console-pimps.org> <20131011062437.GA14115@dhcp-16-126.nay.redhat.com> <20131011102706.GE12321@console-pimps.org> <643121905.4545046.1381498954428.JavaMail.root@redhat.com> <20131012021439.GA4464@dhcp-16-126.nay.redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Return-path: Content-Disposition: inline In-Reply-To: <20131012021439.GA4464@dhcp-16-126.nay.redhat.com> Sender: linux-kernel-owner@vger.kernel.org To: Dave Young Cc: Matt Fleming , Borislav Petkov , X86 ML , LKML , Borislav Petkov , Matthew Garrett , "H. Peter Anvin" , James Bottomley , Vivek Goyal , linux-efi@vger.kernel.org, fwts-devel@lists.ubuntu.com List-Id: linux-efi@vger.kernel.org On Sat, Oct 12, 2013 at 10:14:39AM +0800, Dave Young wrote: > CCing Peter Jones .., Peter, any idea about the grub related problem? What grub problem? As Matt was saying, grub2 isn't loading it as EfiBootServicesCode/Data. grub2 is loading it as EfiLoaderData . > > On 10/11/13 at 09:42am, Dave Young wrote: > > Matt, > > > > The kernel I referring is the boot kernel aka the 1st kernel, > > the boot loader is grub2 from Fedora 19. > > > > [sorry for top reply because of using webmail] > > > > > > ----- Original Message ----- > > From: "Matt Fleming" > > To: "Dave Young" > > Cc: "Borislav Petkov" , "X86 ML" , "LKML" , "Borislav Petkov" , "Matthew Garrett" , "H. Peter Anvin" , "James Bottomley" , "Vivek Goyal" , linux-efi@vger.kernel.org, fwts-devel@lists.ubuntu.com > > Sent: Friday, October 11, 2013 6:27:06 PM > > Subject: Re: [PATCH 12/12] EFI: Runtime services virtual mapping > > > > On Fri, 11 Oct, at 02:24:37PM, Dave Young wrote: > > > For the boot efi_reserve_boot_services code, it's mainly for the > > > SetVirtualAddressMap callback use, so boot regions should not be reused > > > before SetVirtualAddressMap, but the overlapping happens before the > > > efi_reserve_boot_services, isn't it a problem? > > > > Hang on, which kernel are you referring to here? The boot kernel or the > > kexec'd kernel? I thought you were saying you noticed the overlap when > > running in the second (kexec'd) kernel? > > > > The only reason that you would see this overlap in the first (boot) > > kernel is if the bootloader messed up and allocated the kernel text as > > EfiBootServicesCode/Data. I'd like to believe no bootloaders are still > > doing that. > > > > -- > > Matt Fleming, Intel Open Source Technology Center > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > Please read the FAQ at http://www.tux.org/lkml/ -- Peter