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Message #118001
[Bug 1441291] Re: support EFI rtc on arm64
Verified using tianocore/qemu (search for rtc below):
Booting a command list
EFI stub: Booting Linux Kernel...
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Initializing cgroup subsys cpuacct
[ 0.000000] Linux version 3.13.0-53-generic (buildd@auburn) (gcc version 4.8.2 (Ubuntu/Linaro 4.8.2-19ubuntu1) ) #87-Ubuntu SMP Thu May 7 14:43:55 UTC 2015 (Ubuntu 3.13.0-53.87-generic 3.13.11-ckt19)
[ 0.000000] CPU: AArch64 Processor [500f0000] revision 0
[ 0.000000] No earlyprintk arguments passed.
[ 0.000000] efi: Getting parameters from FDT:
[ 0.000000] EFI v2.40 by EDK II
[ 0.000000] efi:
[ 0.000000] psci: probing function IDs from device-tree
[ 0.000000] PERCPU: Embedded 11 pages/cpu @ffffffc03f9bb000 s16192 r8192 d20672 u45056
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 258560
[ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.13.0-53-generic root=UUID=1aaf7ff5-f468-46de-bca4-960eaf01a7b4 ro earlyprintk console=ttyAMA0
[ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
[ 0.000000] software IO TLB [mem 0x73098000-0x77098000] (64MB) mapped at [ffffffc033098000-ffffffc037097fff]
[ 0.000000] Memory: 901200K/1048576K available (5750K kernel code, 587K rwdata, 2548K rodata, 315K init, 542K bss, 147376K reserved)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vmalloc : 0xffffff8000000000 - 0xffffffbbffff0000 (245759 MB)
[ 0.000000] vmemmap : 0xffffffbc00e00000 - 0xffffffbc01c00000 ( 14 MB)
[ 0.000000] modules : 0xffffffbffc000000 - 0xffffffc000000000 ( 64 MB)
[ 0.000000] memory : 0xffffffc000000000 - 0xffffffc040000000 ( 1024 MB)
[ 0.000000] .init : 0xffffffc00089c000 - 0xffffffc0008eaf40 ( 316 kB)
[ 0.000000] .text : 0xffffffc000080000 - 0xffffffc00089b9b4 ( 8303 kB)
[ 0.000000] .data : 0xffffffc0008eb000 - 0xffffffc00097df68 ( 588 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] RCU dyntick-idle grace-period acceleration is enabled.
[ 0.000000] RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=1.
[ 0.000000] NR_IRQS:64 nr_irqs:64 0
[ 0.000000] Architected cp15 timer(s) running at 50.00MHz (virt).
[ 0.000000] sched_clock: 56 bits at 50MHz, resolution 20ns, wraps every 2748779069440ns
[ 0.000000] Console: colour dummy device 80x25
[ 0.000000] allocated 4194304 bytes of page_cgroup
[ 0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups
[ 0.001040] Calibrating delay loop (skipped), value calculated using timer frequency.. 100.00 BogoMIPS (lpj=500000)
[ 0.001045] pid_max: default: 32768 minimum: 301
[ 0.001091] Security Framework initialized
[ 0.001122] AppArmor: AppArmor initialized
[ 0.001125] Yama: becoming mindful.
[ 0.001153] Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)
[ 0.001156] Mountpoint-cache hash table entries: 2048 (order: 2, 16384 bytes)
[ 0.001687] Initializing cgroup subsys memory
[ 0.001697] Initializing cgroup subsys devices
[ 0.001700] Initializing cgroup subsys freezer
[ 0.001703] Initializing cgroup subsys blkio
[ 0.001705] Initializing cgroup subsys perf_event
[ 0.001710] Initializing cgroup subsys hugetlb
[ 0.001827] hw perfevents: enabled with arm/armv8-pmuv3 PMU driver, 1 counters available
[ 0.001838] Remapping and enabling EFI services.
[ 0.026754] Freed 0x202c000 bytes of EFI boot services memory
[ 0.027456] Brought up 1 CPUs
[ 0.027460] SMP: Total of 1 processors activated.
[ 0.027684] devtmpfs: initialized
[ 0.029312] EVM: security.selinux
[ 0.029315] EVM: security.SMACK64
[ 0.029317] EVM: security.ima
[ 0.029318] EVM: security.capability
[ 0.029600] atomic64 test passed
[ 0.029686] regulator-dummy: no parameters
[ 0.029778] NET: Registered protocol family 16
[ 0.031266] vdso: 2 pages (1 code, 1 data) at base ffffffc0008f1000
[ 0.031297] hw-breakpoint: found 4 breakpoint and 4 watchpoint registers.
[ 0.031373] Serial: AMBA PL011 UART driver
[ 0.031426] 9000000.pl011: ttyAMA0 at MMIO 0x9000000 (irq = 33, base_baud = 0) is a PL011 rev1
[ 0.231224] console [ttyAMA0] enabled
[ 0.234092] bio: create slab <bio-0> at 0
[ 0.237192] vgaarb: loaded
[ 0.239349] SCSI subsystem initialized
[ 0.242252] NetLabel: Initializing
[ 0.244336] NetLabel: domain hash size = 128
[ 0.247118] NetLabel: protocols = UNLABELED CIPSOv4
[ 0.250335] NetLabel: unlabeled traffic allowed by default
[ 0.254016] Switched to clocksource arch_sys_counter
[ 0.260738] AppArmor: AppArmor Filesystem Enabled
[ 0.265693] NET: Registered protocol family 2
[ 0.268862] TCP established hash table entries: 8192 (order: 4, 65536 bytes)
[ 0.273577] TCP bind hash table entries: 8192 (order: 5, 131072 bytes)
[ 0.277755] TCP: Hash tables configured (established 8192 bind 8192)
[ 0.281958] TCP: reno registered
[ 0.284140] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 0.288002] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 0.292296] NET: Registered protocol family 1
[ 0.295247] Trying to unpack rootfs image as initramfs...
[ 0.770956] Freeing initrd memory: 21532K (ffffffc025afe000 - ffffffc027005000)
[ 0.776128] kvm [1]: HYP mode not available
[ 0.779097] Initialise system trusted keyring
[ 0.782052] audit: initializing netlink socket (disabled)
[ 0.785628] type=2000 audit(0.720:1): initialized
[ 0.789014] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[ 0.794296] zbud: loaded
[ 0.796208] VFS: Disk quotas dquot_6.5.2
[ 0.798931] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 0.803934] fuse init (API version 7.22)
[ 0.806628] msgmni has been set to 1866
[ 0.809333] Key type big_key registered
[ 0.812302] Key type asymmetric registered
[ 0.815001] Asymmetric key parser 'x509' registered
[ 0.818309] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
[ 0.823254] io scheduler noop registered
[ 0.825808] io scheduler deadline registered (default)
[ 0.829322] io scheduler cfq registered
[ 0.832164] ipmi message handler version 39.2
[ 0.837087] Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled
[ 0.842215] of_dma_request_slave_channel: dma-names property of node '/pl011@9000000' missing or empty
[ 0.848155] uart-pl011 9000000.pl011: no DMA platform data
[ 0.853555] brd: module loaded
[ 0.856505] loop: module loaded
[ 0.858861] blk-mq: CPU -> queue map
[ 0.861279] CPU 0 -> Queue 0
[ 0.864998] GPT:Primary header thinks Alt. header is not at the end of the disk.
[ 0.869756] GPT:3084211 != 4612095
[ 0.871999] GPT:Alternate GPT header not at the end of the disk.
[ 0.875883] GPT:3084211 != 4612095
[ 0.878104] GPT: Use GNU Parted to correct GPT errors.
[ 0.881501] vda: vda1 vda15
[ 0.884209] libphy: Fixed MDIO Bus: probed
[ 0.887128] tun: Universal TUN/TAP device driver, 1.6
[ 0.890490] tun: (C) 1999-2004 Max Krasnyansky <maxk@xxxxxxxxxxxx>
[ 0.895796] PPP generic driver version 2.4.2
[ 0.898414] mousedev: PS/2 mouse device common for all mice
[ 0.902279] rtc-efi rtc-efi: rtc core: registered rtc-efi as rtc0
[ 0.906450] device-mapper: uevent: version 1.0.3
[ 0.909686] device-mapper: ioctl: 4.27.0-ioctl (2013-10-30) initialised: dm-devel@xxxxxxxxxx
[ 0.914965] ledtrig-cpu: registered to indicate activity on CPUs
[ 0.918580] EFI Variables Facility v0.08 2004-May-17
[ 0.921676] TCP: cubic registered
[ 0.924070] NET: Registered protocol family 10
[ 0.927239] NET: Registered protocol family 17
[ 0.930076] Key type dns_resolver registered
[ 0.932616] Loading compiled-in X.509 certificates
[ 0.936965] Loaded X.509 cert 'Magrathea: Glacier signing key: 9b3a910ad485348d9ba98128707aa1f5d8cc98a9'
[ 0.943221] registered taskstats version 1
[ 0.948619] Key type trusted registered
[ 0.955870] Key type encrypted registered
[ 0.958556] AppArmor: AppArmor sha1 policy hashing enabled
[ 0.962193] IMA: No TPM chip found, activating TPM-bypass!
[ 0.965899] regulator-dummy: disabling
[ 0.968455] rtc-efi rtc-efi: setting system clock to 2015-05-11 16:34:04 UTC (1431362044)
[ 0.974410] Freeing unused kernel memory: 312K (ffffffc00089c000 - ffffffc0008ea000)
Loading, please wait...
[ 1.004313] systemd-udevd[85]: starting version 204
Begin: Loading essential drivers ... done.
Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
Begin: Running /scripts/local-premount ... done.
[ 2.259552] EXT4-fs (vda1): mounted filesystem with ordered data mode. Opts: (null)
Begin: Running /scripts/local-bottom ... done.
done.
Begin: Running /scripts/init-bottom ... done.
[ 2.468258] random: init urandom read with 14 bits of entropy available
* Starting Mount filesystems on boot [ OK ]
* Starting Populate and link to /run filesystem [ OK ]
* Stopping Populate and link to /run filesystem [ OK ]
[ 2.751582] EXT4-fs (vda1): re-mounted. Opts: (null)
* Stopping Track if upstart is running in a container [ OK ]
* Starting Initialize or finalize resolvconf [ OK ]
* Starting Signal sysvinit that the rootfs is mounted [ OK ]
* Starting Clean /tmp directory [ OK ]
* Stopping Clean /tmp directory [ OK ]
Cloud-init v. 0.7.5 running 'init-local' at Mon, 11 May 2015 16:34:08 +0000. Up 4.67 seconds.
cloud-init-nonet[5.39]: waiting 10 seconds for network device
* Starting set console keymap [ OK ]
* Starting Signal sysvinit that virtual filesystems are mounted [ OK ]
* Starting Signal sysvinit that virtual filesystems are mounted [ OK ]
* Starting Bridge udev events into upstart [ OK ]
* Stopping set console keymap [ OK ]
* Starting Signal sysvinit that remote filesystems are mounted [ OK ]
* Starting device node and kernel event manager [ OK ]
* Starting load modules from /etc/modules [ OK ]
* Starting cold plug devices [ OK ]
* Starting log initial device creation [ OK ]
* Stopping load modules from /etc/modules [ OK ]
* Starting Uncomplicated firewall [ OK ]
* Stopping cold plug devices [ OK ]
* Stopping log initial device creation [ OK ]
* Starting enable remaining boot-time encrypted block devices [ OK ]
* Starting configure network device security [ OK ]
* Starting configure network device security [ OK ]
* Starting Mount network filesystems [ OK ]
* Stopping Mount network filesystems [ OK ]
* Starting Bridge socket events into upstart [ OK ]
* Starting configure network device [ OK ]
** Tags removed: verification-needed-trusty
** Tags added: verification-done-trusty
--
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https://bugs.launchpad.net/bugs/1441291
Title:
support EFI rtc on arm64
Status in linux package in Ubuntu:
Fix Released
Status in linux-lts-utopic package in Ubuntu:
Invalid
Status in linux source package in Trusty:
Fix Committed
Status in linux-lts-utopic source package in Trusty:
Fix Released
Status in linux source package in Utopic:
Fix Released
Status in linux-lts-utopic source package in Utopic:
Invalid
Bug description:
[Impact]
ARM64 EFI platforms have no real time clock support. This can leave a system with a very out-of-date system clock. It can be somewhat mitigated by using NTP, but that still leaves issues in early boot (inaccurate last mount times, etc).
[Test Case]
if dmesg | grep -q 'rtc-efi: setting system clock'; then
PASS
else
FAIL
fi
[Regression Risk]
This enables a new driver only on ARM64, so the risk should be low to other platforms. The upstream patches do refactor the rtc-efi driver but, that driver was previously only compilable on ia64, which isn't supported by Ubuntu.
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References
