From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Young Subject: Re: [PATCH 12/12] EFI: Runtime services virtual mapping Date: Sat, 12 Oct 2013 10:14:39 +0800 Message-ID: <20131012021439.GA4464@dhcp-16-126.nay.redhat.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> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <643121905.4545046.1381498954428.JavaMail.root-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> Sender: linux-efi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Matt Fleming Cc: Borislav Petkov , X86 ML , LKML , Borislav Petkov , Matthew Garrett , "H. Peter Anvin" , James Bottomley , Vivek Goyal , linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, fwts-devel-nLRlyDuq1AZFpShjVBNYrg@public.gmane.org, pjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org List-Id: linux-efi@vger.kernel.org CCing Peter Jones .., Peter, any idea about the grub related problem? 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-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, fwts-devel-nLRlyDuq1AZFpShjVBNYrg@public.gmane.org > 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-u79uwXL29TY76Z2rM5mHXA@public.gmane.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/