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Filename Latest commit message Latest commit date
Vitaly Kuznetsov a7c42bb6da x86/kvm/lapic: preserve gfn_to_hva_cache len on cache reinit
vcpu->arch.pv_eoi is accessible through both HV_X64_MSR_VP_ASSIST_PAGE and
MSR_KVM_PV_EOI_EN so on migration userspace may try to restore them in any
order. Values match, however, kvm_lapic_enable_pv_eoi() uses different
length: for Hyper-V case it's the whole struct hv_vp_assist_page, for KVM
native case it is 8. In case we restore KVM-native MSR last cache will
be reinitialized with len=8 so trying to access VP assist page beyond
8 bytes with kvm_read_guest_cached() will fail.

Check if we re-initializing cache for the same address and preserve length
in case it was greater.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-17 00:30:17 +02:00
arch x86/kvm/lapic: preserve gfn_to_hva_cache len on cache reinit 2018-10-17 00:30:17 +02:00
block blk-cgroup: increase number of supported policies 2018-09-11 10:59:53 -06:00
certs
crypto
Documentation kvm/x86 : add coalesced pio support 2018-10-17 00:30:11 +02:00
drivers KVM: s390/vfio-ap: Fixes and enhancements for vfio-ap 2018-10-13 12:00:26 +02:00
firmware
fs This pull request contains fixes for UBIFS: 2018-09-21 15:29:44 +02:00
include KVM: nVMX: add KVM_CAP_HYPERV_ENLIGHTENED_VMCS capability 2018-10-17 00:30:14 +02:00
init Kbuild updates for v4.19 (2nd) 2018-08-25 13:40:38 -07:00
ipc ipc/shm: properly return EIDRM in shm_lock() 2018-09-04 16:45:02 -07:00
kernel kernel/sys.c: remove duplicated include 2018-09-20 22:01:11 +02:00
lib lib/Kconfig.debug: fix three typos in help text 2018-09-04 16:45:02 -07:00
LICENSES
mm mm: slowly shrink slabs with a relatively small number of objects 2018-09-20 22:01:11 +02:00
net net/ipv6: do not copy dst flags on rt init 2018-09-17 19:42:14 -07:00
samples
scripts linux-kselftest-4.19-rc5 2018-09-17 07:24:28 +02:00
security Revert "x86/mm/legacy: Populate the user page-table with user pgd's" 2018-09-14 17:08:45 +02:00
sound ASoC: Fixes for v4.19 2018-09-17 18:59:21 +02:00
tools kvm: selftests: support high GPAs in dirty_log_test 2018-10-17 00:29:38 +02:00
usr
virt KVM: refine the comment of function gfn_to_hva_memslot_prot() 2018-10-17 00:30:13 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS KVM: s390: Features for 4.20 2018-10-04 17:12:45 +02:00
Makefile linux-kselftest-4.19-rc5 2018-09-17 07:24:28 +02:00
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.
See Documentation/00-INDEX for a list of what is contained in each file.

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.