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git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Dan Williams:
"The bulk of this has been in multiple -next releases. There were a few
late breaking fixes and small features that got added in the last
couple days, but the whole set has received a build success
notification from the kbuild robot.
Change summary:
- Region media error reporting: A libnvdimm region device is the
parent to one or more namespaces. To date, media errors have been
reported via the "badblocks" attribute attached to pmem block
devices for namespaces in "raw" or "memory" mode. Given that
namespaces can be in "device-dax" or "btt-sector" mode this new
interface reports media errors generically, i.e. independent of
namespace modes or state.
This subsequently allows userspace tooling to craft "ACPI 6.1
Section 9.20.7.6 Function Index 4 - Clear Uncorrectable Error"
requests and submit them via the ioctl path for NVDIMM root bus
devices.
- Introduce 'struct dax_device' and 'struct dax_operations': Prompted
by a request from Linus and feedback from Christoph this allows for
dax capable drivers to publish their own custom dax operations.
This fixes the broken assumption that all dax operations are
related to a persistent memory device, and makes it easier for
other architectures and platforms to add customized persistent
memory support.
- 'libnvdimm' core updates: A new "deep_flush" sysfs attribute is
available for storage appliance applications to manually trigger
memory controllers to drain write-pending buffers that would
otherwise be flushed automatically by the platform ADR
(asynchronous-DRAM-refresh) mechanism at a power loss event.
Support for "locked" DIMMs is included to prevent namespaces from
surfacing when the namespace label data area is locked. Finally,
fixes for various reported deadlocks and crashes, also tagged for
-stable.
- ACPI / nfit driver updates: General updates of the nfit driver to
add DSM command overrides, ACPI 6.1 health state flags support, DSM
payload debug available by default, and various fixes.
Acknowledgements that came after the branch was pushed:
- commmit 565851c972b5 "device-dax: fix sysfs attribute deadlock":
Tested-by: Yi Zhang <yizhan@redhat.com>
- commit 23f498448362 "libnvdimm: rework region badblocks clearing"
Tested-by: Toshi Kani <toshi.kani@hpe.com>"
* tag 'libnvdimm-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (52 commits)
libnvdimm, pfn: fix 'npfns' vs section alignment
libnvdimm: handle locked label storage areas
libnvdimm: convert NDD_ flags to use bitops, introduce NDD_LOCKED
brd: fix uninitialized use of brd->dax_dev
block, dax: use correct format string in bdev_dax_supported
device-dax: fix sysfs attribute deadlock
libnvdimm: restore "libnvdimm: band aid btt vs clear poison locking"
libnvdimm: fix nvdimm_bus_lock() vs device_lock() ordering
libnvdimm: rework region badblocks clearing
acpi, nfit: kill ACPI_NFIT_DEBUG
libnvdimm: fix clear length of nvdimm_forget_poison()
libnvdimm, pmem: fix a NULL pointer BUG in nd_pmem_notify
libnvdimm, region: sysfs trigger for nvdimm_flush()
libnvdimm: fix phys_addr for nvdimm_clear_poison
x86, dax, pmem: remove indirection around memcpy_from_pmem()
block: remove block_device_operations ->direct_access()
block, dax: convert bdev_dax_supported() to dax_direct_access()
filesystem-dax: convert to dax_direct_access()
Revert "block: use DAX for partition table reads"
ext2, ext4, xfs: retrieve dax_device for iomap operations
...
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memcpy_from_pmem() maps directly to memcpy_mcsafe(). The wrapper
serves no real benefit aside from affording a more generic function name
than the x86-specific 'mcsafe'. However this would not be the first time
that x86 terminology leaked into the global namespace. For lack of
better name, just use memcpy_mcsafe() directly.
This conversion also catches a place where we should have been using
plain memcpy, acpi_nfit_blk_single_io().
Cc: <x86@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the big set of new char/misc driver drivers and features for
4.12-rc1.
There's lots of new drivers added this time around, new firmware
drivers from Google, more auxdisplay drivers, extcon drivers, fpga
drivers, and a bunch of other driver updates. Nothing major, except if
you happen to have the hardware for these drivers, and then you will
be happy :)
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (136 commits)
firmware: google memconsole: Fix return value check in platform_memconsole_init()
firmware: Google VPD: Fix return value check in vpd_platform_init()
goldfish_pipe: fix build warning about using too much stack.
goldfish_pipe: An implementation of more parallel pipe
fpga fr br: update supported version numbers
fpga: region: release FPGA region reference in error path
fpga altera-hps2fpga: disable/unprepare clock on error in alt_fpga_bridge_probe()
mei: drop the TODO from samples
firmware: Google VPD sysfs driver
firmware: Google VPD: import lib_vpd source files
misc: lkdtm: Add volatile to intentional NULL pointer reference
eeprom: idt_89hpesx: Add OF device ID table
misc: ds1682: Add OF device ID table
misc: tsl2550: Add OF device ID table
w1: Remove unneeded use of assert() and remove w1_log.h
w1: Use kernel common min() implementation
uio_mf624: Align memory regions to page size and set correct offsets
uio_mf624: Refactor memory info initialization
uio: Allow handling of non page-aligned memory regions
hangcheck-timer: Fix typo in comment
...
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When auto EOI is not enabled; issue an explicit EOI for hyper-v
interrupts.
Fixes: 6c248aad81c8 ("Drivers: hv: Base autoeoi enablement based on hypervisor hints")
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We want the char-misc fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Don't enable auto-eoi if the hypervisor recommends otherwise. This will
enable vAPIC functionality if available.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix a typo in the macro.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Compiling with warnings enabled finds missing prototype for
hv_do_hypercall.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform-drivers update from Darren Hart:
"This represents a significantly larger and more complex set of changes
than those of prior merge windows.
In particular, we had several changes with dependencies on other
subsystems which we felt were best managed through merges of immutable
branches, including one each from input, i2c, and leds. Two patches
for the watchdog subsystem are included after discussion with Wim and
Guenter following a collision in linux-next (this should be resolved
and you should only see these two appear in this pull request). These
are called out in the "External" section below.
Summary of changes:
- significant further cleanup of fujitsu-laptop and hp-wmi
- new model support for ideapad, asus, silead, and xiaomi
- new hotkeys for thinkpad and models using intel-vbtn
- dell keyboard backlight improvements
- build and dependency improvements
- intel * ipc fixes, cleanups, and api updates
- single isolated fixes noted below
External:
- watchdog: iTCO_wdt: Add PMC specific noreboot update api
- watchdog: iTCO_wdt: cleanup set/unset no_reboot_bit functions
- Merge branch 'ib/4.10-sparse-keymap-managed'
- Merge branch 'i2c/for-INT33FE'
- Merge branch 'linux-leds/dell-laptop-changes-for-4.12'
platform/x86:
- Add Intel Cherry Trail ACPI INT33FE device driver
- remove sparse_keymap_free() calls
- Make SILEAD_DMI depend on TOUCHSCREEN_SILEAD
asus-wmi:
- try to set als by default
- fix cpufv sysfs file permission
acer-wmi:
- setup accelerometer when ACPI device was found
ideapad-laptop:
- Add IdeaPad V310-15ISK to no_hw_rfkill
- Add IdeaPad 310-15IKB to no_hw_rfkill
intel_pmc_ipc:
- use gcr mem base for S0ix counter read
- Fix iTCO_wdt GCS memory mapping failure
- Add pmc gcr read/write/update api's
- fix gcr offset
dell-laptop:
- Add keyboard backlight timeout AC settings
- Handle return error form dell_get_intensity.
- Protect kbd_state against races
- Refactor kbd_led_triggers_store()
hp-wireless:
- reuse module_acpi_driver
- add Xiaomi's hardware id to the supported list
intel-vbtn:
- add volume up and down
INT33FE:
- add i2c dependency
hp-wmi:
- Cleanup exit paths
- Do not shadow errors in sysfs show functions
- Use DEVICE_ATTR_(RO|RW) helper macros
- Refactor dock and tablet state fetchers
- Cleanup wireless get_(hw|sw)state functions
- Refactor redundant HPWMI_READ functions
- Standardize enum usage for constants
- Cleanup local variable declarations
- Do not shadow error values
- Fix detection for dock and tablet mode
- Fix error value for hp_wmi_tablet_state
fujitsu-laptop:
- simplify error handling in acpi_fujitsu_laptop_add()
- do not log LED registration failures
- switch to managed LED class devices
- reorganize LED-related code
- refactor LED registration
- select LEDS_CLASS
- remove redundant fields from struct fujitsu_bl
- account for backlight power when determining brightness
- do not log set_lcd_level() failures in bl_update_status()
- ignore errors when setting backlight power
- make disable_brightness_adjust a boolean
- clean up use_alt_lcd_levels handling
- sync brightness in set_lcd_level()
- simplify set_lcd_level()
- merge set_lcd_level_alt() into set_lcd_level()
- switch to a managed backlight device
- only handle backlight when appropriate
- update debug message logged by call_fext_func()
- rename call_fext_func() arguments
- simplify call_fext_func()
- clean up local variables in call_fext_func()
- remove keycode fields from struct fujitsu_bl
- model-dependent sparse keymap overrides
- use a sparse keymap for hotkey event generation
- switch to a managed hotkey input device
- refactor hotkey input device setup
- use a sparse keymap for brightness key events
- switch to a managed backlight input device
- refactor backlight input device setup
- remove pf_device field from struct fujitsu_bl
- only register platform device if FUJ02E3 is present
- add and remove platform device in separate functions
- simplify platform device attribute definitions
- remove backlight-related attributes from the platform device
- cleanup error labels in fujitsu_init()
- only register backlight device if FUJ02B1 is present
- sync backlight power status in acpi_fujitsu_laptop_add()
- register backlight device in a separate function
- simplify brightness key event generation logic
- decrease indentation in acpi_fujitsu_bl_notify()
intel-hid:
- Add missing ->thaw callback
- do not set parents of input devices explicitly
- remove redundant set_bit() call
- use devm_input_allocate_device() for HID events input device
- make intel_hid_set_enable() take a boolean argument
- simplify enabling/disabling HID events
silead_dmi:
- Add touchscreen info for Surftab Wintron 7.0
- Abort early if DMI does not match
- Do not treat all devices as i2c_clients
- Add entry for Insyde 7W tablets
- Constify properties arrays
intel_scu_ipc:
- Introduce intel_scu_ipc_raw_command()
- Introduce SCU_DEVICE() macro
- Remove redundant subarch check
- Rearrange init sequence
- Platform data is mandatory
asus-nb-wmi:
- Add wapf4 quirk for the X302UA
dell-*:
- Call new led hw_changed API on kbd brightness change
- Add a generic dell-laptop notifier chain
eeepc-laptop:
- Skip unknown key messages 0x50 0x51
thinkpad_acpi:
- add mapping for new hotkeys
- guard generic hotkey case"
* tag 'platform-drivers-x86-v4.12-1' of git://git.infradead.org/linux-platform-drivers-x86: (108 commits)
platform/x86: Make SILEAD_DMI depend on TOUCHSCREEN_SILEAD
platform/x86: asus-wmi: try to set als by default
platform/x86: asus-wmi: fix cpufv sysfs file permission
platform/x86: acer-wmi: setup accelerometer when ACPI device was found
platform/x86: ideapad-laptop: Add IdeaPad V310-15ISK to no_hw_rfkill
platform/x86: intel_pmc_ipc: use gcr mem base for S0ix counter read
platform/x86: intel_pmc_ipc: Fix iTCO_wdt GCS memory mapping failure
watchdog: iTCO_wdt: Add PMC specific noreboot update api
watchdog: iTCO_wdt: cleanup set/unset no_reboot_bit functions
platform/x86: intel_pmc_ipc: Add pmc gcr read/write/update api's
platform/x86: intel_pmc_ipc: fix gcr offset
platform/x86: dell-laptop: Add keyboard backlight timeout AC settings
platform/x86: dell-laptop: Handle return error form dell_get_intensity.
platform/x86: hp-wireless: reuse module_acpi_driver
platform/x86: intel-vbtn: add volume up and down
platform/x86: INT33FE: add i2c dependency
platform/x86: hp-wmi: Cleanup exit paths
platform/x86: hp-wmi: Do not shadow errors in sysfs show functions
platform/x86: hp-wmi: Use DEVICE_ATTR_(RO|RW) helper macros
platform/x86: hp-wmi: Refactor dock and tablet state fetchers
...
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To maintain the uniformity in accessing GCR registers, this patch
modifies the S0ix counter read function to use GCR address base
instead of ipc address base.
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Reviewed-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com>
Tested-by: Shanth Murthy <shanth.murthy@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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This patch adds API's to read/write/update PMC GC registers.
PMC dependent devices like iTCO_wdt, Telemetry has requirement
to acces GCR registers. These API's can be used for this
purpose.
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Merge branch 'i2c/for-INT33FE' of
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git
to prepare for an incoming INT33FE driver.
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
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A new call to SCU intel_scu_ipc_raw_command() writes SPTR and DPTR
registers before sending a command.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
"Xen fixes and featrues for 4.12. The main changes are:
- enable building the kernel with Xen support but without enabling
paravirtualized mode (Vitaly Kuznetsov)
- add a new 9pfs xen frontend driver (Stefano Stabellini)
- simplify Xen's cpuid handling by making use of cpu capabilities
(Juergen Gross)
- add/modify some headers for new Xen paravirtualized devices
(Oleksandr Andrushchenko)
- EFI reset_system support under Xen (Julien Grall)
- and the usual cleanups and corrections"
* tag 'for-linus-4.12b-rc0b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (57 commits)
xen: Move xen_have_vector_callback definition to enlighten.c
xen: Implement EFI reset_system callback
arm/xen: Consolidate calls to shutdown hypercall in a single helper
xen: Export xen_reboot
xen/x86: Call xen_smp_intr_init_pv() on BSP
xen: Revert commits da72ff5bfcb0 and 72a9b186292d
xen/pvh: Do not fill kernel's e820 map in init_pvh_bootparams()
xen/scsifront: use offset_in_page() macro
xen/arm,arm64: rename __generic_dma_ops to xen_get_dma_ops
xen/arm,arm64: fix xen_dma_ops after 815dd18 "Consolidate get_dma_ops..."
xen/9pfs: select CONFIG_XEN_XENBUS_FRONTEND
x86/cpu: remove hypervisor specific set_cpu_features
vmware: set cpu capabilities during platform initialization
x86/xen: use capabilities instead of fake cpuid values for xsave
x86/xen: use capabilities instead of fake cpuid values for x2apic
x86/xen: use capabilities instead of fake cpuid values for mwait
x86/xen: use capabilities instead of fake cpuid values for acpi
x86/xen: use capabilities instead of fake cpuid values for acc
x86/xen: use capabilities instead of fake cpuid values for mtrr
x86/xen: use capabilities instead of fake cpuid values for aperf
...
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Commit 84d582d236dc ("xen: Revert commits da72ff5bfcb0 and
72a9b186292d") defined xen_have_vector_callback in enlighten_hvm.c.
Since guest-type-neutral code refers to this variable this causes
build failures when CONFIG_XEN_PVHVM is not defined.
Moving xen_have_vector_callback definition to enlighten.c resolves
this issue.
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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When rebooting DOM0 with ACPI on ARM64, the kernel is crashing with the stack
trace [1].
This is happening because when EFI runtimes are enabled, the reset code
(see machine_restart) will first try to use EFI restart method.
However, the EFI restart code is expecting the reset_system callback to
be always set. This is not the case for Xen and will lead to crash.
The EFI restart helper is used in multiple places and some of them don't
not have fallback (see machine_power_off). So implement reset_system
callback as a call to xen_reboot when using EFI Xen.
[ 36.999270] reboot: Restarting system
[ 37.002921] Internal error: Attempting to execute userspace memory: 86000004 [#1] PREEMPT SMP
[ 37.011460] Modules linked in:
[ 37.014598] CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted 4.11.0-rc1-00003-g1e248b60a39b-dirty #506
[ 37.023903] Hardware name: (null) (DT)
[ 37.027734] task: ffff800902068000 task.stack: ffff800902064000
[ 37.033739] PC is at 0x0
[ 37.036359] LR is at efi_reboot+0x94/0xd0
[ 37.040438] pc : [<0000000000000000>] lr : [<ffff00000880f2c4>] pstate: 404001c5
[ 37.047920] sp : ffff800902067cf0
[ 37.051314] x29: ffff800902067cf0 x28: ffff800902068000
[ 37.056709] x27: ffff000008992000 x26: 000000000000008e
[ 37.062104] x25: 0000000000000123 x24: 0000000000000015
[ 37.067499] x23: 0000000000000000 x22: ffff000008e6e250
[ 37.072894] x21: ffff000008e6e000 x20: 0000000000000000
[ 37.078289] x19: ffff000008e5d4c8 x18: 0000000000000010
[ 37.083684] x17: 0000ffffa7c27470 x16: 00000000deadbeef
[ 37.089079] x15: 0000000000000006 x14: ffff000088f42bef
[ 37.094474] x13: ffff000008f42bfd x12: ffff000008e706c0
[ 37.099870] x11: ffff000008e70000 x10: 0000000005f5e0ff
[ 37.105265] x9 : ffff800902067a50 x8 : 6974726174736552
[ 37.110660] x7 : ffff000008cc6fb8 x6 : ffff000008cc6fb0
[ 37.116055] x5 : ffff000008c97dd8 x4 : 0000000000000000
[ 37.121453] x3 : 0000000000000000 x2 : 0000000000000000
[ 37.126845] x1 : 0000000000000000 x0 : 0000000000000000
[ 37.132239]
[ 37.133808] Process systemd-shutdow (pid: 1, stack limit = 0xffff800902064000)
[ 37.141118] Stack: (0xffff800902067cf0 to 0xffff800902068000)
[ 37.146949] 7ce0: ffff800902067d40 ffff000008085334
[ 37.154869] 7d00: 0000000000000000 ffff000008f3b000 ffff800902067d40 ffff0000080852e0
[ 37.162787] 7d20: ffff000008cc6fb0 ffff000008cc6fb8 ffff000008c7f580 ffff000008c97dd8
[ 37.170706] 7d40: ffff800902067d60 ffff0000080e2c2c 0000000000000000 0000000001234567
[ 37.178624] 7d60: ffff800902067d80 ffff0000080e2ee8 0000000000000000 ffff0000080e2df4
[ 37.186544] 7d80: 0000000000000000 ffff0000080830f0 0000000000000000 00008008ff1c1000
[ 37.194462] 7da0: ffffffffffffffff 0000ffffa7c4b1cc 0000000000000000 0000000000000024
[ 37.202380] 7dc0: ffff800902067dd0 0000000000000005 0000fffff24743c8 0000000000000004
[ 37.210299] 7de0: 0000fffff2475f03 0000000000000010 0000fffff2474418 0000000000000005
[ 37.218218] 7e00: 0000fffff2474578 000000000000000a 0000aaaad6b722c0 0000000000000001
[ 37.226136] 7e20: 0000000000000123 0000000000000038 ffff800902067e50 ffff0000081e7294
[ 37.234055] 7e40: ffff800902067e60 ffff0000081e935c ffff800902067e60 ffff0000081e9388
[ 37.241973] 7e60: ffff800902067eb0 ffff0000081ea388 0000000000000000 00008008ff1c1000
[ 37.249892] 7e80: ffffffffffffffff 0000ffffa7c4a79c 0000000000000000 ffff000000020000
[ 37.257810] 7ea0: 0000010000000004 0000000000000000 0000000000000000 ffff0000080830f0
[ 37.265729] 7ec0: fffffffffee1dead 0000000028121969 0000000001234567 0000000000000000
[ 37.273651] 7ee0: ffffffffffffffff 8080000000800000 0000800000008080 feffa9a9d4ff2d66
[ 37.281567] 7f00: 000000000000008e feffa9a9d5b60e0f 7f7fffffffff7f7f 0101010101010101
[ 37.289485] 7f20: 0000000000000010 0000000000000008 000000000000003a 0000ffffa7ccf588
[ 37.297404] 7f40: 0000aaaad6b87d00 0000ffffa7c4b1b0 0000fffff2474be0 0000aaaad6b88000
[ 37.305326] 7f60: 0000fffff2474fb0 0000000001234567 0000000000000000 0000000000000000
[ 37.313240] 7f80: 0000000000000000 0000000000000001 0000aaaad6b70d4d 0000000000000000
[ 37.321159] 7fa0: 0000000000000001 0000fffff2474ea0 0000aaaad6b5e2e0 0000fffff2474e80
[ 37.329078] 7fc0: 0000ffffa7c4b1cc 0000000000000000 fffffffffee1dead 000000000000008e
[ 37.336997] 7fe0: 0000000000000000 0000000000000000 9ce839cffee77eab fafdbf9f7ed57f2f
[ 37.344911] Call trace:
[ 37.347437] Exception stack(0xffff800902067b20 to 0xffff800902067c50)
[ 37.353970] 7b20: ffff000008e5d4c8 0001000000000000 0000000080f82000 0000000000000000
[ 37.361883] 7b40: ffff800902067b60 ffff000008e17000 ffff000008f44c68 00000001081081b4
[ 37.369802] 7b60: ffff800902067bf0 ffff000008108478 0000000000000000 ffff000008c235b0
[ 37.377721] 7b80: ffff800902067ce0 0000000000000000 0000000000000000 0000000000000015
[ 37.385643] 7ba0: 0000000000000123 000000000000008e ffff000008992000 ffff800902068000
[ 37.393557] 7bc0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 37.401477] 7be0: 0000000000000000 ffff000008c97dd8 ffff000008cc6fb0 ffff000008cc6fb8
[ 37.409396] 7c00: 6974726174736552 ffff800902067a50 0000000005f5e0ff ffff000008e70000
[ 37.417318] 7c20: ffff000008e706c0 ffff000008f42bfd ffff000088f42bef 0000000000000006
[ 37.425234] 7c40: 00000000deadbeef 0000ffffa7c27470
[ 37.430190] [< (null)>] (null)
[ 37.434982] [<ffff000008085334>] machine_restart+0x6c/0x70
[ 37.440550] [<ffff0000080e2c2c>] kernel_restart+0x6c/0x78
[ 37.446030] [<ffff0000080e2ee8>] SyS_reboot+0x130/0x228
[ 37.451337] [<ffff0000080830f0>] el0_svc_naked+0x24/0x28
[ 37.456737] Code: bad PC value
[ 37.459891] ---[ end trace 76e2fc17e050aecd ]---
Signed-off-by: Julien Grall <julien.grall@arm.com>
--
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
The x86 code has theoritically a similar issue, altought EFI does not
seem to be the preferred method. I have only built test it on x86.
This should also probably be fixed in stable tree.
Changes in v2:
- Implement xen_efi_reset_system using xen_reboot
- Move xen_efi_reset_system in drivers/xen/efi.c
Signed-off-by: Juergen Gross <jgross@suse.com>
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The helper xen_reboot will be called by the EFI code in a later patch.
Note that the ARM version does not yet exist and will be added in a
later patch too.
Signed-off-by: Julien Grall <julien.grall@arm.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Recent code rework that split handling ov PV, HVM and PVH guests into
separate files missed calling xen_smp_intr_init_pv() on CPU0.
Add this call.
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Recent discussion (http://marc.info/?l=xen-devel&m=149192184523741)
established that commit 72a9b186292d ("xen: Remove event channel
notification through Xen PCI platform device") (and thus commit
da72ff5bfcb0 ("partially revert "xen: Remove event channel
notification through Xen PCI platform device"")) are unnecessary and,
in fact, prevent HVM guests from booting on Xen releases prior to 4.0
Therefore we revert both of those commits.
The summary of that discussion is below:
Here is the brief summary of the current situation:
Before the offending commit (72a9b186292):
1) INTx does not work because of the reset_watches path.
2) The reset_watches path is only taken if you have Xen > 4.0
3) The Linux Kernel by default will use vector inject if the hypervisor
support. So even INTx does not work no body running the kernel with
Xen > 4.0 would notice. Unless he explicitly disabled this feature
either in the kernel or in Xen (and this can only be disabled by
modifying the code, not user-supported way to do it).
After the offending commit (+ partial revert):
1) INTx is no longer support for HVM (only for PV guests).
2) Any HVM guest The kernel will not boot on Xen < 4.0 which does
not have vector injection support. Since the only other mode
supported is INTx which.
So based on this summary, I think before commit (72a9b186292) we were
in much better position from a user point of view.
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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e820 map is updated with information from the zeropage (i.e. pvh_bootparams)
by default_machine_specific_memory_setup(). With the way things are done
now, we end up with a duplicated e820 map.
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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There is no user of x86_hyper->set_cpu_features() any more. Remove it.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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There is no need to set the same capabilities for each cpu
individually. This can be done for all cpus in platform initialization.
Cc: Alok Kataria <akataria@vmware.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: virtualization@lists.linux-foundation.org
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Acked-by: Alok Kataria <akataria@vmware.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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When running as pv domain xen_cpuid() is being used instead of
native_cpuid(). In xen_cpuid() the xsave feature availability is
indicated by special casing the related cpuid leaf.
Instead of delivering fake cpuid values set or clear the cpu
capability bits for xsave instead.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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When running as pv domain xen_cpuid() is being used instead of
native_cpuid(). In xen_cpuid() the x2apic feature is indicated as not
being present by special casing the related cpuid leaf.
Instead of delivering fake cpuid values clear the cpu capability bit
for x2apic instead.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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When running as pv domain xen_cpuid() is being used instead of
native_cpuid(). In xen_cpuid() the mwait feature is indicated to be
present or not by special casing the related cpuid leaf.
Instead of delivering fake cpuid values use the cpu capability bit
for mwait instead.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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When running as pv domain xen_cpuid() is being used instead of
native_cpuid(). In xen_cpuid() the acpi feature is indicated as not
being present by special casing the related cpuid leaf in case we
are not the initial domain.
Instead of delivering fake cpuid values clear the cpu capability bit
for acpi instead.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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When running as pv domain xen_cpuid() is being used instead of
native_cpuid(). In xen_cpuid() the acc feature (thermal monitoring)
is indicated as not being present by special casing the related
cpuid leaf.
Instead of delivering fake cpuid values clear the cpu capability bit
for acc instead.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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When running as pv domain xen_cpuid() is being used instead of
native_cpuid(). In xen_cpuid() the mtrr feature is indicated as not
being present by special casing the related cpuid leaf.
Instead of delivering fake cpuid values clear the cpu capability bit
for mtrr instead.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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When running as pv domain xen_cpuid() is being used instead of
native_cpuid(). In xen_cpuid() the aperf/mperf feature is indicated
as not being present by special casing the related cpuid leaf.
Instead of delivering fake cpuid values clear the cpu capability bit
for aperf/mperf instead.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Xen doesn't support DCA (direct cache access) for pv domains. Clear
the corresponding capability indicator.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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There is no need to set the same capabilities for each cpu
individually. This can easily be done for all cpus when starting the
kernel.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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For kdump to work correctly it needs the physical address of
vmcoreinfo_note. When running as dom0 this means the virtual address
has to be translated to the related machine address.
paddr_vmcoreinfo_note() is meant to do the translation via
__pa_symbol() only, but being attributed "weak" it can be replaced
easily in Xen case.
Signed-off-by: Juergen Gross <jgross@suse.com>
Tested-by: Petr Tesarik <ptesarik@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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xen_call_function_interrupt() isn't used in smp_pv.c. Remove it.
Signed-off-by: Juergen Gross <jgross@suse.com>
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After code split between PV and HVM some functions in xen_smp_ops have
xen_pv_ prefix and some only xen_ which makes them look like they're
common for both PV and HVM while they're not. Rename all the rest to
have xen_pv_ prefix.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Now everything is in place and we can move PV-only code under
CONFIG_XEN_PV. CONFIG_XEN_PV_SMP is created to support the change.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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__pfn_to_mfn() is only used from PV code (mmu_pv.c, p2m.c) and from
page.h where all functions calling it check for
xen_feature(XENFEAT_auto_translated_physmap) first so we can replace
it with any stub to make build happy.
set_foreign_p2m_mapping()/clear_foreign_p2m_mapping() are used from
grant-table.c but only if !xen_feature(XENFEAT_auto_translated_physmap).
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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startup_xen references PV-only code, decorate it with #ifdef CONFIG_XEN_PV
to make PV-free builds possible.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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xen_pmu_init/finish() functions are used in suspend.c and
enlighten.c, add stubs for now.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Slit the code in suspend.c into suspend_pv.c and suspend_hvm.c.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Basically, mmu.c is renamed to mmu_pv.c and some code moved out to common
mmu.c.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Move PVHVM related code to mmu_hvm.c.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Basically, smp.c is renamed to smp_pv.c and some code moved out to common
smp.c. struct xen_common_irq delcaration ended up in smp.h.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Move PVHVM related code to smp_hvm.c. Drop 'static' qualifier from
xen_smp_send_reschedule(), xen_smp_send_call_function_ipi(),
xen_smp_send_call_function_single_ipi(), these functions will be moved to
common smp code when smp_pv.c is split.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Split xen_cpu_die() into xen_pv_cpu_die() and xen_hvm_cpu_die() to support
further splitting of smp.c.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Split xen_smp_prepare_boot_cpu() into xen_pv_smp_prepare_boot_cpu() and
xen_hvm_smp_prepare_boot_cpu() to support further splitting of smp.c.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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xen_smp_intr_init() and xen_smp_intr_free() have PV-specific code and as
a praparatory change to splitting smp.c we need to split these fucntions.
Create xen_smp_intr_init_pv()/xen_smp_intr_free_pv().
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Basically, enlighten.c is renamed to enlighten_pv.c and some code moved
out to common enlighten.c.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Move PVHVM related code to enlighten_hvm.c. Three functions:
xen_cpuhp_setup(), xen_reboot(), xen_emergency_restart() are shared, drop
static qualifier from them. These functions will go to common code once
it is split from enlighten.c.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Create enlighten_pvh.c by splitting off PVH related code from enlighten.c,
put it under CONFIG_XEN_PVH.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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