linux-toradex.git/drivers/hv, branch v5.10-rc3

Merge tag 'hyperv-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

2020-11-05T19:32:03+00:00

Pull hyperv fixes from Wei Liu:

 - clarify a comment (Michael Kelley)

 - change a pr_warn() to pr_info() (Olaf Hering)

* tag 'hyperv-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  x86/hyperv: Clarify comment on x2apic mode
  hv_balloon: disable warning when floor reached

hv_balloon: disable warning when floor reached

2020-10-19T13:39:20+00:00

It is not an error if the host requests to balloon down, but the VM
refuses to do so. Without this change a warning is logged in dmesg
every five minutes.

Fixes:  b3bb97b8a49f3 ("Drivers: hv: balloon: Add logging for dynamic memory operations")

Signed-off-by: Olaf Hering 
Reviewed-by: Michael Kelley 
Link: https://lore.kernel.org/r/20201008071216.16554-1-olaf@aepfle.de
Signed-off-by: Wei Liu

Merge branch 'akpm' (patches from Andrew)

2020-10-16T18:31:55+00:00

Merge more updates from Andrew Morton:
 "155 patches.

  Subsystems affected by this patch series: mm (dax, debug, thp,
  readahead, page-poison, util, memory-hotplug, zram, cleanups), misc,
  core-kernel, get_maintainer, MAINTAINERS, lib, bitops, checkpatch,
  binfmt, ramfs, autofs, nilfs, rapidio, panic, relay, kgdb, ubsan,
  romfs, and fault-injection"

* emailed patches from Andrew Morton : (155 commits)
  lib, uaccess: add failure injection to usercopy functions
  lib, include/linux: add usercopy failure capability
  ROMFS: support inode blocks calculation
  ubsan: introduce CONFIG_UBSAN_LOCAL_BOUNDS for Clang
  sched.h: drop in_ubsan field when UBSAN is in trap mode
  scripts/gdb/tasks: add headers and improve spacing format
  scripts/gdb/proc: add struct mount & struct super_block addr in lx-mounts command
  kernel/relay.c: drop unneeded initialization
  panic: dump registers on panic_on_warn
  rapidio: fix the missed put_device() for rio_mport_add_riodev
  rapidio: fix error handling path
  nilfs2: fix some kernel-doc warnings for nilfs2
  autofs: harden ioctl table
  ramfs: fix nommu mmap with gaps in the page cache
  mm: remove the now-unnecessary mmget_still_valid() hack
  mm/gup: take mmap_lock in get_dump_page()
  binfmt_elf, binfmt_elf_fdpic: use a VMA list snapshot
  coredump: rework elf/elf_fdpic vma_dump_size() into common helper
  coredump: refactor page range dumping into common helper
  coredump: let dump_emit() bail out on short writes
  ...

hv_balloon: try to merge system ram resources

2020-10-16T18:11:18+00:00

Let's try to merge system ram resources we add, to minimize the number of
resources in /proc/iomem.  We don't care about the boundaries of
individual chunks we added.

Signed-off-by: David Hildenbrand 
Signed-off-by: Andrew Morton 
Reviewed-by: Wei Liu 
Cc: Michal Hocko 
Cc: "K. Y. Srinivasan" 
Cc: Haiyang Zhang 
Cc: Stephen Hemminger 
Cc: Wei Liu 
Cc: Pankaj Gupta 
Cc: Baoquan He 
Cc: Wei Yang 
Cc: Anton Blanchard 
Cc: Ard Biesheuvel 
Cc: Benjamin Herrenschmidt 
Cc: Boris Ostrovsky 
Cc: Christian Borntraeger 
Cc: Dan Williams 
Cc: Dave Jiang 
Cc: Eric Biederman 
Cc: Greg Kroah-Hartman 
Cc: Heiko Carstens 
Cc: Jason Gunthorpe 
Cc: Jason Wang 
Cc: Juergen Gross 
Cc: Julien Grall 
Cc: Kees Cook 
Cc: Len Brown 
Cc: Leonardo Bras 
Cc: Libor Pechacek 
Cc: Michael Ellerman 
Cc: "Michael S. Tsirkin" 
Cc: Nathan Lynch 
Cc: "Oliver O'Halloran" 
Cc: Paul Mackerras 
Cc: Pingfan Liu 
Cc: "Rafael J. Wysocki" 
Cc: Roger Pau Monné 
Cc: Stefano Stabellini 
Cc: Thomas Gleixner 
Cc: Vasily Gorbik 
Cc: Vishal Verma 
Link: https://lkml.kernel.org/r/20200911103459.10306-9-david@redhat.com
Signed-off-by: Linus Torvalds

mm/memory_hotplug: prepare passing flags to add_memory() and friends

2020-10-16T18:11:18+00:00

We soon want to pass flags, e.g., to mark added System RAM resources.
mergeable.  Prepare for that.

This patch is based on a similar patch by Oscar Salvador:

https://lkml.kernel.org/r/20190625075227.15193-3-osalvador@suse.de

Signed-off-by: David Hildenbrand 
Signed-off-by: Andrew Morton 
Reviewed-by: Juergen Gross  # Xen related part
Reviewed-by: Pankaj Gupta 
Acked-by: Wei Liu 
Cc: Michal Hocko 
Cc: Dan Williams 
Cc: Jason Gunthorpe 
Cc: Baoquan He 
Cc: Michael Ellerman 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: "Rafael J. Wysocki" 
Cc: Len Brown 
Cc: Greg Kroah-Hartman 
Cc: Vishal Verma 
Cc: Dave Jiang 
Cc: "K. Y. Srinivasan" 
Cc: Haiyang Zhang 
Cc: Stephen Hemminger 
Cc: Wei Liu 
Cc: Heiko Carstens 
Cc: Vasily Gorbik 
Cc: Christian Borntraeger 
Cc: David Hildenbrand 
Cc: "Michael S. Tsirkin" 
Cc: Jason Wang 
Cc: Boris Ostrovsky 
Cc: Stefano Stabellini 
Cc: "Oliver O'Halloran" 
Cc: Pingfan Liu 
Cc: Nathan Lynch 
Cc: Libor Pechacek 
Cc: Anton Blanchard 
Cc: Leonardo Bras 
Cc: Ard Biesheuvel 
Cc: Eric Biederman 
Cc: Julien Grall 
Cc: Kees Cook 
Cc: Roger Pau Monné 
Cc: Thomas Gleixner 
Cc: Wei Yang 
Link: https://lkml.kernel.org/r/20200911103459.10306-5-david@redhat.com
Signed-off-by: Linus Torvalds

Merge tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

2020-10-15T22:48:06+00:00

Pull another Hyper-V update from Wei Liu:
 "One patch from Michael to get VMbus interrupt from ACPI DSDT"

* tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  Drivers: hv: vmbus: Add parsing of VMbus interrupt in ACPI DSDT

Drivers: hv: vmbus: Add parsing of VMbus interrupt in ACPI DSDT

2020-10-14T19:14:51+00:00

On ARM64, Hyper-V now specifies the interrupt to be used by VMbus
in the ACPI DSDT.  This information is not used on x86 because the
interrupt vector must be hardcoded.  But update the generic
VMbus driver to do the parsing and pass the information to the
architecture specific code that sets up the Linux IRQ.  Update
consumers of the interrupt to get it from an architecture specific
function.

Signed-off-by: Michael Kelley 
Link: https://lore.kernel.org/r/1597434304-40631-1-git-send-email-mikelley@microsoft.com
Signed-off-by: Wei Liu

Merge tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

2020-10-14T17:32:10+00:00

Pull Hyper-V updates from Wei Liu:

 - a series from Boqun Feng to support page size larger than 4K

 - a few miscellaneous clean-ups

* tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  hv: clocksource: Add notrace attribute to read_hv_sched_clock_*() functions
  x86/hyperv: Remove aliases with X64 in their name
  PCI: hv: Document missing hv_pci_protocol_negotiation() parameter
  scsi: storvsc: Support PAGE_SIZE larger than 4K
  Driver: hv: util: Use VMBUS_RING_SIZE() for ringbuffer sizes
  HID: hyperv: Use VMBUS_RING_SIZE() for ringbuffer sizes
  Input: hyperv-keyboard: Use VMBUS_RING_SIZE() for ringbuffer sizes
  hv_netvsc: Use HV_HYP_PAGE_SIZE for Hyper-V communication
  hv: hyperv.h: Introduce some hvpfn helper functions
  Drivers: hv: vmbus: Move virt_to_hvpfn() to hyperv header
  Drivers: hv: Use HV_HYP_PAGE in hv_synic_enable_regs()
  Drivers: hv: vmbus: Introduce types of GPADL
  Drivers: hv: vmbus: Move __vmbus_open()
  Drivers: hv: vmbus: Always use HV_HYP_PAGE_SIZE for gpadl
  drivers: hv: remove cast from hyperv_die_event

Driver: hv: util: Use VMBUS_RING_SIZE() for ringbuffer sizes

2020-09-28T08:57:28+00:00

For a Hyper-V vmbus, the size of the ringbuffer has two requirements:

1) it has to take one PAGE_SIZE for the header

2) it has to be PAGE_SIZE aligned so that double-mapping can work

VMBUS_RING_SIZE() could calculate a correct ringbuffer size which
fulfills both requirements, therefore use it to make sure vmbus work
when PAGE_SIZE != HV_HYP_PAGE_SIZE (4K).

Note that since the argument for VMBUS_RING_SIZE() is the size of
payload (data part), so it will be minus 4k (the size of header when
PAGE_SIZE = 4k) than the original value to keep the ringbuffer total
size unchanged when PAGE_SIZE = 4k.

Signed-off-by: Boqun Feng 
Cc: Michael Kelley 
Reviewed-by: Michael Kelley 
Link: https://lore.kernel.org/r/20200916034817.30282-11-boqun.feng@gmail.com
Signed-off-by: Wei Liu

Drivers: hv: vmbus: Move virt_to_hvpfn() to hyperv header

2020-09-28T08:55:13+00:00

There will be more places other than vmbus where we need to calculate
the Hyper-V page PFN from a virtual address, so move virt_to_hvpfn() to
hyperv generic header.

Signed-off-by: Boqun Feng 
Reviewed-by: Michael Kelley 
Link: https://lore.kernel.org/r/20200916034817.30282-6-boqun.feng@gmail.com
Signed-off-by: Wei Liu