Ubuntu server 14.04 fail in UEFI installation on Rmy4S

[XiongZhang]

Label: Rmy08sdp (Romley-4S)
BIOS version: SE5C600.86B.99.99.x059.091020121352
Processor: Intel(R) Xeon(R) CPU E5-4650 C2 stepping
Chipset: Patsburg SSB-T - C1 stepping
OS: Ubuntu 14.04 Server daily image

How to reproduce:
1. select UEFI DVD from boot manager
2. select install ubuntu from grub
3. system will stop a while then reboot.

root cause:
1) Kernel will set memory cache attribute according to efi memeory map
2) if bios set one memory range is EFI_RUNTIME and uncacheable, kernel will flush this memory
3) system reboot when kernel use cflush instruction on a vga address like 0xA0000~0xBFFFF
the related code is: efi_enter_virtual_mode() in arch/x86/platform/efi/efi.c

two solutions:
1. wait for bios update, but it is hard for some machines.
2. backport following 11 patches which are in kernel 3.14-rc1
f4fccac x86/efi: Simplify EFI_DEBUG
0fd64c2 x86/mm/pageattr: Lookup address in an arbitrary PGD
f3f7296 x86/mm/pageattr: Add a PGD pagetable populating function
4b23538 x86/mm/pageattr: Add a PUD pagetable populating function
f900a4b x86/mm/pageattr: Add a PMD pagetable populating function
c6b6f36 x86/mm/pageattr: Add a PTE pagetable populating function
0bb8aee x86/mm/pageattr: Add a PUD error unwinding path
52a628f x86/mm/pageattr: Add last levels of error path
82f0712 x86/mm/cpa: Map in an arbitrary pgd
d2f7cbe x86/efi: Runtime services virtual mapping
ee41143 x86/efi: Check krealloc return value

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 3.13.0-20.42

---------------
linux (3.13.0-20.42) trusty; urgency=low

  [ Adam Conrad ]

  * [Packaging] Set bootloader and loader on ppc64el to grub

  [ Andy Whitcroft ]

  * rebase to v3.13.7
  * [Config] updateconfigs following rebase to v3.13.7
  * cloud-tools -- pull in init scripts for Hyper-V daemons
  * cloud-tools -- detect Hyper-V VM to avoid starting
  * cloud-tools -- update IF_NAME to DEVICE in hv_* scripts
    - LP: #1295401
  * [Config] cloud-tools -- ensure we force older hv-kvp-daemon-init off
  * [Config] fix up Breaks/Replaces on linux-cloud-tools-common to fix upgrades

  [ Emmanuel Grumbach ]

  * SAUCE: (no-up) iwlwifi: mvm: disable uAPSD due to bugs in the firmware

  [ James Bottomley ]

  * SAUCE: (no-up) fix our current target reap infrastructure
    - LP: #1283604
  * SAUCE: (no-up) dual scan thread bug fix
    - LP: #1283604

  [ K. Y. Srinivasan ]

  * SAUCE: (no-up) Tools: hv: vssdaemon: Ignore VFAT mounts during the
    Freeze operation
    - LP: #1298192

  [ Paolo Pisati ]

  * [Config] disable HW_RANDOM_EXYNOS, USB_DWC3_EXYNOS,
    PHY_EXYNOS_MIPI_VIDEO
    - LP: #1294353
  * [Config] armhf: generic: AHCI_IMX=y, SERIAL_FSL_LPUART=m
    - LP: #1294951
  * [Config] armhf: generic: MFD_TI_AM335X_TSCADC and USB_DWC3_OMAP = m
    - LP: #1294962

  [ Tim Gardner ]

  * Release Tracking Bug
    - LP: #1298585
  * [Config] ignore.modules
  * SAUCE: i2c-cpm: Add missing includes for powerpc
  * [Config] CONFIG_ABX500_CORE=y for ppc64el
  * [Config] CONFIG_ALX=m for powerpc
  * [Config] CONFIG_ACENIC_OMIT_TIGON_I=n for ppc64el
  * [Config] CONFIG_ACORN_PARTITION_*=n for ppc64el
  * [Config] CONFIG_ANDROID=n for powerpc
  * [Config] CONFIG_ASYNC_RAID6_TEST=m for ppc64el
  * [Config] CONFIG_BIG_KEYS=y for ppc64el
  * [Config] CONFIG_BLK_DEV_INTEGRITY=y for ppc64el
  * [Config] CONFIG_BSD_PROCESS_ACCT=y for ppc64el
  * [Config] CONFIG_BLK_DEV_SR_VENDOR=n for ppc64el
  * [Config] CONFIG_CFG80211=m for ppc64el
  * [Config] CONFIG_CHARGER_BQ24190=m for powerpc
  * [Config] CONFIG_CHARGER_BQ24735=m for powerpc
  * [Config] CONFIG_EXPERT=y for ppc64el
  * [Config] CONFIG_ATA_SFF=y on ppc64el
  * [Config] CONFIG_ATA_GENERIC=y for ppc64el, powerpc
  * [Config] CONFIG_CHR_DEV_ST=m for ppc64el
  * [Config] CONFIG_CHECKPOINT_RESTORE=y for ppc64el
  * [Config] CONFIG_CHELSIO_T1_1G=y for ppc64el
  * [Config] CONFIG_CHR_DEV_OSST=m for ppc64el
  * [Config] CONFIG_CHR_DEV_SCH=m for ppc64el
  * [Config] CONFIG_CPU_FREQ_STAT=y for powerpc
  * [Config] CONFIG_DDR=y for ppc64el
  * [Config] CONFIG_DEBUG_BUGVERBOSE=y for powerpc
  * [Config] CONFIG_EXT4_USE_FOR_EXT23=y for powerpc, ppc64el
  * [Config] CONFIG_E100=m, CONFIG_E1000=m, CONFIG_E1000E=m for ppc64el
  * [Config] CONFIG_EZX_PCAP=n for all arches
  * [Config] CONFIG_DYNAMIC_DEBUG=y for powerpc
  * [Config] CONFIG_ENABLE_MUST_CHECK=n for ppc64el
  * [Config] CONFIG_ENABLE_WARN_DEPRECATED=n for ppc64el
  * [Config] CONFIG_FB_3DFX=m for all arches
  * [Config] CONFIG_FB_MATROX=m for ppc64el
  * [Config] CONFIG_FB_RADEON=m for ppc64el
  * [Config] CONFIG_FB_SAVAGE_I2C=y for all arches
  * [Config] CONFIG_FIREWIRE=m for ppc64el
  * [Config] CO...