shim 15.7-0ubuntu1
qemu-efi-aarch64 now implements EFI Memory Attribute Protocol. When shim
detects this, it uses it to set memory attributes appropriately for the
sections of the bootloader image it loads before passing control to it.
After this change, fresh Ubuntu VMs began crashing on startup (bug
2036604):
--------------------------------------
BdsDxe: loading Boot0001 "UEFI Misc Device" from
PciRoot(0x0)/Pci(0x1,0x3)/Pci(0x0,0x0)
BdsDxe: starting Boot0001 "UEFI Misc Device" from
PciRoot(0x0)/Pci(0x1,0x3)/Pci(0x0,0x0)
Synchronous Exception at 0x00000000BC300000
Synchronous Exception at 0x00000000BC300000
--------------------------------------
I narrowed this down to only happening when shim executes fbaa64.efi
(thus the fresh VM). I found upstream shim is unaffected, so I used
bisection to identify the relevant change:
From c7b305152802c8db688605654f75e1195def9fd6 Mon Sep 17 00:00:00 2001
From: Nicholas Bishop <REDACTED>
Date: Mon, 19 Dec 2022 18:56:13 -0500
Subject: [PATCH] pe: Align section size up to page size for mem attrs
Setting memory attributes is generally done at page granularity, and
this is enforced by checks in `get_mem_attrs` and
`update_mem_attrs`. But unlike the section address, the section size
isn't necessarily aligned to 4KiB. Round up the section size to fix
this.
Signed-off-by: Nicholas Bishop <nicholasbis...@google.com>
Please add this patch to shim.
** Also affects: shim (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2036604
Title:
Synchronous Exception when booting VMs via qemu-efi-aarch64
Status in cloud-images:
New
Status in autopkgtest package in Ubuntu:
Confirmed
Status in edk2 package in Ubuntu:
In Progress
Status in qemu package in Ubuntu:
Confirmed
Status in shim package in Ubuntu:
Confirmed
Status in edk2 package in Debian:
Confirmed
Bug description:
I try to create an autopkgtest VM on an arm64 system with
autopkgtest-buildvm-ubuntu-cloud -v --release mantic
or on an amd64 system with
autopkgtest-buildvm-ubuntu-cloud --arch arm64 -v --release mantic
In both cases I get:
Found linux image: /boot/vmlinuz-6.5.0-5-generic
Found initrd image: /boot/initrd.img-6.5.0-5-generic
Found linux image: /boot/vmlinuz-6.3.0-7-generic
Found initrd image: /boot/initrd.img-6.3.0-7-generic
Found linux image: /boot/vmlinuz-6.2.0-20-generic
Found initrd image: /boot/initrd.img-6.2.0-20-generic
Warning: os-prober will not be executed to detect other bootable partitions.
BdsDxe: loading Boot0001 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x5,0x0)
BdsDxe: starting Boot0001 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x5,0x0)
Synchronous Exception at 0x000000005C328000
Synchronous Exception at 0x000000005C328000
^A^Cqemu-system-aarch64: terminating on signal 2
Traceback (most recent call last):
/var/crash has no entries.
ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: qemu-system-arm 1:8.0.4+dfsg-1ubuntu1
ProcVersionSignature: Ubuntu 6.3.0-7.7-generic 6.3.5
Uname: Linux 6.3.0-7-generic aarch64
NonfreeKernelModules: zfs
ApportVersion: 2.27.0-0ubuntu2
Architecture: arm64
CasperMD5CheckResult: pass
CloudArchitecture: aarch64
CloudID: none
CloudName: none
CloudPlatform: none
CloudSubPlatform: config
Date: Tue Sep 19 15:37:20 2023
InstallationDate: Installed on 2021-08-17 (763 days ago)
InstallationMedia: Ubuntu-Server 21.10 "Impish Indri" - Alpha arm64 (20210813)
KvmCmdLine: COMMAND STAT EUID RUID PID PPID %CPU COMMAND
Lspci-vt:
-[0000:00]-+-00.0 NVIDIA Corporation GK208B [GeForce GT 730]
\-00.1 NVIDIA Corporation GK208 HDMI/DP Audio Controller
MachineType: {report['dmi.sys.vendor']} {report['dmi.product.name']}
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.3.0-7-generic
root=/dev/mapper/ubuntu--vg-ubuntu--lv ro
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: qemu
UpgradeStatus: No upgrade log present (probably fresh install)
acpidump:
dmi.bios.date: Mar 26 2020
dmi.bios.release: 1.0
dmi.bios.vendor: EFI Development Kit II / Marvell
dmi.bios.version: EDK II
dmi.board.name: Armada 8040 MacchiatoBin
dmi.board.vendor: SolidRun
dmi.board.version: Rev. 1.3
dmi.chassis.type: 2
dmi.chassis.vendor: SolidRun
dmi.chassis.version: Rev. 1.3
dmi.modalias:
dmi:bvnEFIDevelopmentKitII/Marvell:bvrEDKII:bdMar262020:br1.0:svnSolidRun:pnArmada8040MacchiatoBin:pvrRev.1.3:rvnSolidRun:rnArmada8040MacchiatoBin:rvrRev.1.3:cvnSolidRun:ct2:cvrRev.1.3:sku:
dmi.product.name: Armada 8040 MacchiatoBin
dmi.product.version: Rev. 1.3
dmi.sys.vendor: SolidRun
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