From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from g4t0017.houston.hp.com ([15.201.24.20]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VjzJW-0003UI-GQ for kexec@lists.infradead.org; Fri, 22 Nov 2013 22:35:03 +0000 Message-ID: <1385159385.1791.160.camel@misato.fc.hp.com> Subject: Re: [patch 0/9 v3] kexec kernel efi runtime support From: Toshi Kani Date: Fri, 22 Nov 2013 15:29:45 -0700 In-Reply-To: <20131121061704.363730447@dhcp-16-126.nay.redhat.com> References: <20131121061704.363730447@dhcp-16-126.nay.redhat.com> Mime-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "kexec" Errors-To: kexec-bounces+dwmw2=twosheds.infradead.org@lists.infradead.org To: dyoung@redhat.com Cc: mjg59@srcf.ucam.org, linux-efi@vger.kernel.org, matt@console-pimps.org, greg@kroah.com, x86@kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, James.Bottomley@HansenPartnership.com, horms@verge.net.au, bp@alien8.de, ebiederm@xmission.com, hpa@zytor.com, vgoyal@redhat.com T24gVGh1LCAyMDEzLTExLTIxIGF0IDE0OjE3ICswODAwLCBkeW91bmdAcmVkaGF0LmNvbSB3cm90 ZToKPiBIaSwKPiAKPiBIZXJlIGlzIHRoZSBWMyBmb3Igc3VwcG9ydGluZyBrZXhlYyBrZXJuZWwg ZWZpIHJ1bnRpbWUuCj4gUGVyIHBlcnZpb3VzIGRpc2N1c3Npb24gSSBwYXNzIHRoZSAxc3Qga2Vy bmVsIGVmaSBydW50aW1lIG1hcHBpbmcKPiB2aWEgc2V0dXBfZGF0YSB0byAybmQga2VybmVsLiBC ZXNpZGVzIG9mIHRoZSBydW50aW1lIG1hcHBpbmcKPiBpbmZvIEkgYWxzbyBwYXNzIHRoZSBmd192 ZW5kb3IsIHJ1bnRpbWUsIGNvbmZpZyB0YWJsZSwgc21iaW9zCj4gcGh5c2ljYWwgYWRkcmVzcyBp biBzZXR1cF9kYXRhLiBFRkkgc3BlYyBtZW50aW9uZWQgZndfdmVuZG9yLAo+IHJ1bnRpbWUsIGNv bmZpZyB0YWJsZSBhZGRyZXNzZXMgd2lsbCBiZSBjb252ZXJ0ZWQgdG8gdmlydCBhZGRyZXNzCj4g YWZ0ZXIgZW50ZXJpbmcgdmlydHVhbCBtb2RlLCBidXQgd2Ugd2lsbCB1c2UgaXQgYXMgcGh5c2lj YWwgYWRkcmVzcwo+IGluIGVmaV9pbml0LiBGb3Igc21iaW9zIEVGSSBzcGVjIGRpZCBub3QgbWVu dGlvbiBhYm91dCB0aGUgYWRkcmVzcwo+IHVwZGF0aW5nLCBidXQgZHVyaW5nIG15IHRlc3Qgb24g YSBIUCB3b3Jrc3RhdGlvbiwgdGhlIGJpb3Mgd2lsbAo+IGNvbnZlcnQgaXQgdG8gVmlydCBhZGRy LCB0aHVzIHBhc3MgaXQgaW4gc2V0dXBfZGF0YSBhcyB3ZWxsLgo+IAo+IEZvciBmd192ZW5kb3Is IHJ1bnRpbWUsIGNvbmZpZyB0YWJsZSwgSSBleHBvcnQgdGhlbSBpbiAvc3lzL2Zpcm13YXJlLwo+ IGVmaS8sIHNtYmlvcyBpcyBhbHJlYWR5IGluIC9zeXMvZmlybXdhcmUvZWZpL3N5c3RhYi4KPiAK PiBGb3IgZWZpIHJ1bnRpbWUgbWFwcGluZyBJIGFkZCBhIG5ldyBkaXJlY3RvcnkgL3N5cy9maXJt d2FyZS9lZmkvCj4gcnVudGltZS1tYXAvIGxpa2UgYmVsb3cKPiBbZGF2ZUBkYXJrc3RhciB+XSQg dHJlZSAvc3lzL2Zpcm13YXJlL2VmaS9ydW50aW1lLW1hcC8KPiAvc3lzL2Zpcm13YXJlL2VmaS9y dW50aW1lLW1hcC8KPiDilJzilIDilIAgMAo+IOKUgiAgIOKUnOKUgOKUgCBhdHRyaWJ1dGUKPiDi lIIgICDilJzilIDilIAgbnVtX3BhZ2VzCj4g4pSCICAg4pSc4pSA4pSAIHBoeXNfYWRkcgo+IOKU giAgIOKUnOKUgOKUgCB0eXBlCj4g4pSCICAg4pSU4pSA4pSAIHZpcnRfYWRkcgo+IOKUnOKUgOKU gCAxCj4g4pSCICAg4pSc4pSA4pSAIGF0dHJpYnV0ZQo+IOKUgiAgIOKUnOKUgOKUgCBudW1fcGFn ZXMKPiDilIIgICDilJzilIDilIAgcGh5c19hZGRyCj4g4pSCICAg4pSc4pSA4pSAIHR5cGUKPiDi lIIgICDilJTilIDilIAgdmlydF9hZGRyCj4gW3NuaXBdCj4gIAo+IGtleGVjLXRvb2xzIHdpbGwg YXNzZW1ibGUgdGhlbSBhcyBzZXR1cF9kYXRhIGFuZCBwYXNzIHRvIDJuZCBrZXJuZWwuCj4gSSB3 aWxsIHNlbmQgdXNlcnNwYWNlIHBhdGNoZXMgYXMgd2VsbC4KPiAKPiBMaW1pdGF0aW9uIGlzIEkg b25seSB3cml0ZSBzdXBwb3J0IGZvciB4ODZfNjQsIHRlc3Qgb24gYmVsb3cgbWFjaGluZXM6Cj4g TGVub3ZvIHRoaW5rcGFkIHQ0MjAKPiBEZWxsIGluc3Bpcm9uIDE0IC0gMzQyMQo+IEhQIFo0MjAg d29ya3N0YXRpb24KPiBRZW11ICsgT1ZNRgoKVGVzdGVkIG9uIGFuIEhQIEVGSS1iYXNlZCA2MC13 YXkgc2VydmVyIChwcm90b3R5cGUpLiAgRm9yIHRoZSBzZXJpZXM6CgpUZXN0ZWQtYnk6IFRvc2hp IEthbmkgPHRvc2hpLmthbmlAaHAuY29tPgoKVGhhbmtzLAotVG9zaGkKCgoKX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18Ka2V4ZWMgbWFpbGluZyBsaXN0Cmtl eGVjQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1h bi9saXN0aW5mby9rZXhlYwo= From mboxrd@z Thu Jan 1 00:00:00 1970 From: Toshi Kani Subject: Re: [patch 0/9 v3] kexec kernel efi runtime support Date: Fri, 22 Nov 2013 15:29:45 -0700 Message-ID: <1385159385.1791.160.camel@misato.fc.hp.com> References: <20131121061704.363730447@dhcp-16-126.nay.redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20131121061704.363730447-je1gSBvt1TcFLmT5oZ11vB/sF2h8X+2i0E9HWUfgJXw@public.gmane.org> Sender: linux-efi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: dyoung-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org, hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org, James.Bottomley-d9PhHud1JfjCXq6kfMZ53/egYHeGw8Jk@public.gmane.org, vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org, horms-/R6kz+dDXgpPR4JQBCEnsQ@public.gmane.org, kexec-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org, greg-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org, matt-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org List-Id: linux-efi@vger.kernel.org On Thu, 2013-11-21 at 14:17 +0800, dyoung-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org wrote: > Hi, >=20 > Here is the V3 for supporting kexec kernel efi runtime. > Per pervious discussion I pass the 1st kernel efi runtime mapping > via setup_data to 2nd kernel. Besides of the runtime mapping > info I also pass the fw_vendor, runtime, config table, smbios > physical address in setup_data. EFI spec mentioned fw_vendor, > runtime, config table addresses will be converted to virt address > after entering virtual mode, but we will use it as physical address > in efi_init. For smbios EFI spec did not mention about the address > updating, but during my test on a HP workstation, the bios will > convert it to Virt addr, thus pass it in setup_data as well. >=20 > For fw_vendor, runtime, config table, I export them in /sys/firmware/ > efi/, smbios is already in /sys/firmware/efi/systab. >=20 > For efi runtime mapping I add a new directory /sys/firmware/efi/ > runtime-map/ like below > [dave@darkstar ~]$ tree /sys/firmware/efi/runtime-map/ > /sys/firmware/efi/runtime-map/ > =E2=94=9C=E2=94=80=E2=94=80 0 > =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 attribute > =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 num_pages > =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 phys_addr > =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 type > =E2=94=82 =E2=94=94=E2=94=80=E2=94=80 virt_addr > =E2=94=9C=E2=94=80=E2=94=80 1 > =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 attribute > =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 num_pages > =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 phys_addr > =E2=94=82 =E2=94=9C=E2=94=80=E2=94=80 type > =E2=94=82 =E2=94=94=E2=94=80=E2=94=80 virt_addr > [snip] > =20 > kexec-tools will assemble them as setup_data and pass to 2nd kernel. > I will send userspace patches as well. >=20 > Limitation is I only write support for x86_64, test on below machines= : > Lenovo thinkpad t420 > Dell inspiron 14 - 3421 > HP Z420 workstation > Qemu + OVMF Tested on an HP EFI-based 60-way server (prototype). For the series: Tested-by: Toshi Kani Thanks, -Toshi From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756140Ab3KVWef (ORCPT ); Fri, 22 Nov 2013 17:34:35 -0500 Received: from g4t0017.houston.hp.com ([15.201.24.20]:15464 "EHLO g4t0017.houston.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755467Ab3KVWee (ORCPT ); Fri, 22 Nov 2013 17:34:34 -0500 Message-ID: <1385159385.1791.160.camel@misato.fc.hp.com> Subject: Re: [patch 0/9 v3] kexec kernel efi runtime support From: Toshi Kani To: dyoung@redhat.com Cc: linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org, x86@kernel.org, mjg59@srcf.ucam.org, hpa@zytor.com, James.Bottomley@HansenPartnership.com, vgoyal@redhat.com, ebiederm@xmission.com, horms@verge.net.au, kexec@lists.infradead.org, bp@alien8.de, greg@kroah.com, matt@console-pimps.org Date: Fri, 22 Nov 2013 15:29:45 -0700 In-Reply-To: <20131121061704.363730447@dhcp-16-126.nay.redhat.com> References: <20131121061704.363730447@dhcp-16-126.nay.redhat.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.8.5 (3.8.5-2.fc19) Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2013-11-21 at 14:17 +0800, dyoung@redhat.com wrote: > Hi, > > Here is the V3 for supporting kexec kernel efi runtime. > Per pervious discussion I pass the 1st kernel efi runtime mapping > via setup_data to 2nd kernel. Besides of the runtime mapping > info I also pass the fw_vendor, runtime, config table, smbios > physical address in setup_data. EFI spec mentioned fw_vendor, > runtime, config table addresses will be converted to virt address > after entering virtual mode, but we will use it as physical address > in efi_init. For smbios EFI spec did not mention about the address > updating, but during my test on a HP workstation, the bios will > convert it to Virt addr, thus pass it in setup_data as well. > > For fw_vendor, runtime, config table, I export them in /sys/firmware/ > efi/, smbios is already in /sys/firmware/efi/systab. > > For efi runtime mapping I add a new directory /sys/firmware/efi/ > runtime-map/ like below > [dave@darkstar ~]$ tree /sys/firmware/efi/runtime-map/ > /sys/firmware/efi/runtime-map/ > ├── 0 > │ ├── attribute > │ ├── num_pages > │ ├── phys_addr > │ ├── type > │ └── virt_addr > ├── 1 > │ ├── attribute > │ ├── num_pages > │ ├── phys_addr > │ ├── type > │ └── virt_addr > [snip] > > kexec-tools will assemble them as setup_data and pass to 2nd kernel. > I will send userspace patches as well. > > Limitation is I only write support for x86_64, test on below machines: > Lenovo thinkpad t420 > Dell inspiron 14 - 3421 > HP Z420 workstation > Qemu + OVMF Tested on an HP EFI-based 60-way server (prototype). For the series: Tested-by: Toshi Kani Thanks, -Toshi