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Linus Torvalds 02e5f74ef0 ARM: 
- Fix the handling of ZCR_EL2 in NV VMs
 
 - Pick the correct translation regime when doing a PTW on
   the back of a SEA
 
 - Prevent userspace from injecting an event into a vcpu that isn't
   initialised yet
 
 - Move timer save/restore to the sysreg handling code, fixing EL2 timer
   access in the process
 
 - Add FGT-based trapping of MDSCR_EL1 to reduce the overhead of debug
 
 - Fix trapping configuration when the host isn't GICv3
 
 - Improve the detection of HCR_EL2.E2H being RES1
 
 - Drop a spurious 'break' statement in the S1 PTW
 
 - Don't try to access SPE when owned by EL3
 
 Documentation updates:
 
 - Document the failure modes of event injection
 
 - Document that a GICv3 guest can be created on a GICv5 host
   with FEAT_GCIE_LEGACY
 
 Selftest improvements:
 
 - Add a selftest for the effective value of HCR_EL2.AMO
 
 - Address build warning in the timer selftest when building with clang
 
 - Teach irqfd selftests about non-x86 architectures
 
 - Add missing sysregs to the set_id_regs selftest
 
 - Fix vcpu allocation in the vgic_lpi_stress selftest
 
 - Correctly enable interrupts in the vgic_lpi_stress selftest
 
 x86:
 
 - Expand the KVM_PRE_FAULT_MEMORY selftest to add a regression test for the
   bug fixed by commit 3ccbf6f470 ("KVM: x86/mmu: Return -EAGAIN if userspace
   deletes/moves memslot during prefault")
 
 - Don't try to get PMU capabilities from perf when running a CPU with hybrid
   CPUs/PMUs, as perf will rightly WARN.
 
 guest_memfd:
 
 - Rework KVM_CAP_GUEST_MEMFD_MMAP (newly introduced in 6.18) into a more
   generic KVM_CAP_GUEST_MEMFD_FLAGS
 
 - Add a guest_memfd INIT_SHARED flag and require userspace to explicitly set
   said flag to initialize memory as SHARED, irrespective of MMAP.  The
   behavior merged in 6.18 is that enabling mmap() implicitly initializes
   memory as SHARED, which would result in an ABI collision for x86 CoCo VMs
   as their memory is currently always initialized PRIVATE.
 
 - Allow mmap() on guest_memfd for x86 CoCo VMs, i.e. on VMs with private
   memory, to enable testing such setups, i.e. to hopefully flush out any
   other lurking ABI issues before 6.18 is officially released.
 
 - Add testcases to the guest_memfd selftest to cover guest_memfd without MMAP,
   and host userspace accesses to mmap()'d private memory.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "ARM:

   - Fix the handling of ZCR_EL2 in NV VMs

   - Pick the correct translation regime when doing a PTW on the back of
     a SEA

   - Prevent userspace from injecting an event into a vcpu that isn't
     initialised yet

   - Move timer save/restore to the sysreg handling code, fixing EL2
     timer access in the process

   - Add FGT-based trapping of MDSCR_EL1 to reduce the overhead of debug

   - Fix trapping configuration when the host isn't GICv3

   - Improve the detection of HCR_EL2.E2H being RES1

   - Drop a spurious 'break' statement in the S1 PTW

   - Don't try to access SPE when owned by EL3

  Documentation updates:

   - Document the failure modes of event injection

   - Document that a GICv3 guest can be created on a GICv5 host with
     FEAT_GCIE_LEGACY

  Selftest improvements:

   - Add a selftest for the effective value of HCR_EL2.AMO

   - Address build warning in the timer selftest when building with
     clang

   - Teach irqfd selftests about non-x86 architectures

   - Add missing sysregs to the set_id_regs selftest

   - Fix vcpu allocation in the vgic_lpi_stress selftest

   - Correctly enable interrupts in the vgic_lpi_stress selftest

  x86:

   - Expand the KVM_PRE_FAULT_MEMORY selftest to add a regression test
     for the bug fixed by commit 3ccbf6f470 ("KVM: x86/mmu: Return
     -EAGAIN if userspace deletes/moves memslot during prefault")

   - Don't try to get PMU capabilities from perf when running a CPU with
     hybrid CPUs/PMUs, as perf will rightly WARN.

  guest_memfd:

   - Rework KVM_CAP_GUEST_MEMFD_MMAP (newly introduced in 6.18) into a
     more generic KVM_CAP_GUEST_MEMFD_FLAGS

   - Add a guest_memfd INIT_SHARED flag and require userspace to
     explicitly set said flag to initialize memory as SHARED,
     irrespective of MMAP.

     The behavior merged in 6.18 is that enabling mmap() implicitly
     initializes memory as SHARED, which would result in an ABI
     collision for x86 CoCo VMs as their memory is currently always
     initialized PRIVATE.

   - Allow mmap() on guest_memfd for x86 CoCo VMs, i.e. on VMs with
     private memory, to enable testing such setups, i.e. to hopefully
     flush out any other lurking ABI issues before 6.18 is officially
     released.

   - Add testcases to the guest_memfd selftest to cover guest_memfd
     without MMAP, and host userspace accesses to mmap()'d private
     memory"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (46 commits)
  arm64: Revamp HCR_EL2.E2H RES1 detection
  KVM: arm64: nv: Use FGT write trap of MDSCR_EL1 when available
  KVM: arm64: Compute per-vCPU FGTs at vcpu_load()
  KVM: arm64: selftests: Fix misleading comment about virtual timer encoding
  KVM: arm64: selftests: Add an E2H=0-specific configuration to get_reg_list
  KVM: arm64: selftests: Make dependencies on VHE-specific registers explicit
  KVM: arm64: Kill leftovers of ad-hoc timer userspace access
  KVM: arm64: Fix WFxT handling of nested virt
  KVM: arm64: Move CNT*CT_EL0 userspace accessors to generic infrastructure
  KVM: arm64: Move CNT*_CVAL_EL0 userspace accessors to generic infrastructure
  KVM: arm64: Move CNT*_CTL_EL0 userspace accessors to generic infrastructure
  KVM: arm64: Add timer UAPI workaround to sysreg infrastructure
  KVM: arm64: Make timer_set_offset() generally accessible
  KVM: arm64: Replace timer context vcpu pointer with timer_id
  KVM: arm64: Introduce timer_context_to_vcpu() helper
  KVM: arm64: Hide CNTHV_*_EL2 from userspace for nVHE guests
  Documentation: KVM: Update GICv3 docs for GICv5 hosts
  KVM: arm64: gic-v3: Only set ICH_HCR traps for v2-on-v3 or v3 guests
  KVM: arm64: selftests: Actually enable IRQs in vgic_lpi_stress
  KVM: arm64: selftests: Allocate vcpus with correct size
  ...
2025-10-18 07:07:14 -10:00
..
ABI VFIO updates for v6.18-rc1 part 2 2025-10-08 11:22:27 -07:00
accel Documentation: accel: amdxdna: Update compiler information 2025-08-21 08:25:31 -07:00
accounting docs: update delaytop documentation for new interactive features 2025-09-13 17:32:56 -07:00
admin-guide - Remove a bunch of asm implementing condition flags testing in KVM's 2025-10-11 11:19:16 -07:00
arch - Make TDX and kexec work together 2025-10-04 10:01:30 -07:00
block
bpf bpf: disable and remove registers chain based liveness 2025-09-19 09:27:23 -07:00
cdrom
core-api dma-mapping updates for Linux 6.18: 2025-10-03 17:41:12 -07:00
cpu-freq cpufreq: Drop unused symbol CPUFREQ_ETERNAL 2025-10-01 13:57:22 +02:00
crypto crypto: doc - Add explicit title heading to API docs 2025-09-28 11:54:48 +08:00
dev-tools It has been a relatively busy cycle in docsland, with changes all over: 2025-10-03 17:16:13 -07:00
devicetree sound fixes for 6.18-rc2 2025-10-17 08:20:10 -07:00
doc-guide
driver-api pci-v6.18-changes 2025-10-06 10:41:03 -07:00
edac
fault-injection
fb fbdev fixes & enhancements for 6.18-rc1: 2025-10-10 09:36:23 -07:00
features OpenRISC updates for 6.18 2025-10-05 10:02:54 -07:00
filesystems Ext4 bug fixes for 6.18-rc2, including 2025-10-15 07:51:57 -07:00
firmware-guide
firmware_class
fpga
gpu drm next for 6.18-rc1 2025-10-02 12:47:25 -07:00
hid
hwmon hwmon: (cros_ec) register fans into thermal framework cooling devices 2025-09-25 08:08:14 -07:00
i2c i2c: i801: Add support for Intel Wildcat Lake-U 2025-09-28 00:45:53 +02:00
iio docs: iio: add documentation for ade9000 driver 2025-09-13 14:20:44 +01:00
images
infiniband
input Input: add INPUT_PROP_HAPTIC_TOUCHPAD 2025-09-15 14:32:54 +02:00
isdn
kbuild Kbuild updates for 6.18 2025-10-01 20:58:51 -07:00
kernel-hacking
leds
litmus-tests
livepatch
locking Documentation: locking: Add local_lock_nested_bh() to locktypes 2025-08-21 12:52:20 -06:00
maintainer docs: maintainer: Fix ambiguous subheading formatting 2025-09-18 10:26:45 -06:00
mhi
misc-devices
mm Only two patch series in this pull request: 2025-10-05 12:11:07 -07:00
netlabel
netlink Char/Misc/IIO/Binder changes for 6.18-rc1 2025-10-04 16:26:32 -07:00
networking linux-can-fixes-for-6.18-20251014 2025-10-15 17:56:20 -07:00
nvdimm
nvme
PCI pci-v6.18-changes 2025-10-06 10:41:03 -07:00
pcmcia
peci
power It has been a relatively busy cycle in docsland, with changes all over: 2025-10-03 17:16:13 -07:00
process It has been a relatively busy cycle in docsland, with changes all over: 2025-10-03 17:16:13 -07:00
RCU RCU pull request for v6.18 2025-10-04 11:28:45 -07:00
rust
scheduler
scsi scsi: switch ->bios_param() to passing gendisk 2025-08-13 02:59:28 -04:00
security
sound ALSA: emu10k1: Fix typo in docs 2025-10-04 15:47:24 +02:00
sphinx docs: remove cdomain.py 2025-09-21 16:35:57 -06:00
sphinx-static
spi
staging It has been a relatively busy cycle in docsland, with changes all over: 2025-10-03 17:16:13 -07:00
sunrpc/xdr
target
tee Documentation: tee: Add Qualcomm TEE driver 2025-09-15 17:34:06 +02:00
timers
tools tools/rtla: Add remaining support for osnoise actions 2025-09-27 04:53:48 -04:00
trace Documentation: trace: histogram: Convert ftrace docs cross-reference 2025-09-18 11:49:26 -06:00
translations More power management updates for 6.18-rc1 2025-10-07 09:39:51 -07:00
usb
userspace-api It has been a relatively busy cycle in docsland, with changes all over: 2025-10-03 17:16:13 -07:00
virt KVM x86 fixes for 6.18: 2025-10-18 10:25:43 +02:00
w1 docs: w1: ds2482: fix typo in buses 2025-09-16 10:00:57 -06:00
watchdog
wmi
.gitignore
.renames.txt docs: add Documentation/.renames.txt 2025-09-09 13:37:16 -06:00
atomic_bitops.txt
atomic_t.txt
Changes
CodingStyle
conf.py docs: conf.py: drop xindy rule 2025-08-29 16:45:09 -06:00
docutils.conf
index.rst
Kconfig
Makefile docs: add tools/docs/gen-redirects.py 2025-09-09 13:37:16 -06:00
memory-barriers.txt
SubmittingPatches
subsystem-apis.rst