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Vitaly Kuznetsov 5c3d0dbe20 KVM: x86: hyper-v: Fix the maximum number of sparse banks for XMM fast TLB flush hypercalls 
commit 7321f47ead upstream.

When TLB flush hypercalls (HVCALL_FLUSH_VIRTUAL_ADDRESS_{LIST,SPACE}_EX are
issued in 'XMM fast' mode, the maximum number of allowed sparse_banks is
not 'HV_HYPERCALL_MAX_XMM_REGISTERS - 1' (5) but twice as many (10) as each
XMM register is 128 bit long and can hold two 64 bit long banks.

Cc: stable@vger.kernel.org # 5.14.x
Fixes: 5974565bc2 ("KVM: x86: kvm_hv_flush_tlb use inputs from XMM registers")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20220222154642.684285-4-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-08 14:24:03 +02:00
arch KVM: x86: hyper-v: Fix the maximum number of sparse banks for XMM fast TLB flush hypercalls 2022-04-08 14:24:03 +02:00
block Revert "Revert "block, bfq: honor already-setup queue merges"" 2022-04-08 14:23:56 +02:00
certs
crypto crypto: xts - Add softdep on ecb 2022-04-08 14:23:55 +02:00
Documentation ALSA: hda/realtek: Add alc256-samsung-headphone fixup 2022-04-08 14:24:03 +02:00
drivers media: atomisp: fix bad usage at error handling logic 2022-04-08 14:24:02 +02:00
fs ntfs: add sanity check on allocation size 2022-04-08 14:23:58 +02:00
include sched/tracing: Report TASK_RTLOCK_WAIT tasks as TASK_UNINTERRUPTIBLE 2022-04-08 14:23:57 +02:00
init
ipc
kernel tracing: Have TRACE_DEFINE_ENUM affect trace event types as well 2022-04-08 14:24:02 +02:00
lib lib/test_lockup: fix kernel pointer check for separate address spaces 2022-04-08 14:24:01 +02:00
LICENSES
mm mm/kmemleak: reset tag when compare object pointer 2022-04-08 14:22:56 +02:00
net net/sched: act_ct: fix ref leak when switching zones 2022-04-08 14:23:53 +02:00
samples samples/bpf, xdpsock: Fix race when running for fix duration of time 2022-04-08 14:23:40 +02:00
scripts atomics: Fix atomic64_{read_acquire,set_release} fallbacks 2022-04-08 14:23:57 +02:00
security Fix incorrect type in assignment of ipv6 port for audit 2022-04-08 14:23:55 +02:00
sound ALSA: hda/realtek: Add alc256-samsung-headphone fixup 2022-04-08 14:24:03 +02:00
tools selftests: test_vxlan_under_vrf: Fix broken test case 2022-04-08 14:23:52 +02:00
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README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.