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Filename Latest commit message Latest commit date
Sean Christopherson 319109a2d0 KVM: x86: Manually flush collapsible SPTEs only when toggling flags
Zapping collapsible sptes, a.k.a. 4k sptes that can be promoted into a
large page, is only necessary when changing only the dirty logging flag
of a memory region.  If the memslot is also being moved, then all sptes
for the memslot are zapped when it is invalidated.  When a memslot is
being created, it is impossible for there to be existing dirty mappings,
e.g. KVM can have MMIO sptes, but not present, and thus dirty, sptes.

Note, the comment and logic are shamelessly borrowed from MIPS's version
of kvm_arch_commit_memory_region().

Fixes: 3ea3b7fa9a ("kvm: mmu: lazy collapse small sptes into large sptes")
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-09-24 13:37:25 +02:00
arch KVM: x86: Manually flush collapsible SPTEs only when toggling flags 2019-09-24 13:37:25 +02:00
block dma-mapping updates for 5.4: 2019-09-19 13:27:23 -07:00
certs
crypto - crypto and DM crypt advances that allow the crypto API to reclaim 2019-09-21 10:40:37 -07:00
Documentation KVM/Hyper-V: Add new KVM capability KVM_CAP_HYPERV_DIRECT_TLBFLUSH 2019-09-24 13:37:13 +02:00
drivers - New Drivers 2019-09-23 19:37:49 -07:00
fs selinux/stable-5.4 PR 20190917 2019-09-23 11:21:04 -07:00
include KVM/Hyper-V: Add new KVM capability KVM_CAP_HYPERV_DIRECT_TLBFLUSH 2019-09-24 13:37:13 +02:00
init Modules updates for v5.4 2019-09-22 10:34:46 -07:00
ipc Merge branch 'work.mount-base' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-09-18 13:15:58 -07:00
kernel Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching 2019-09-23 12:21:03 -07:00
lib Modules updates for v5.4 2019-09-22 10:34:46 -07:00
LICENSES
mm hmm related patches for 5.4 2019-09-21 10:07:42 -07:00
net RDMA subsystem updates for 5.4 2019-09-21 10:26:24 -07:00
samples rpmsg updates for v5.4 2019-09-22 10:58:15 -07:00
scripts Modules updates for v5.4 2019-09-22 10:34:46 -07:00
security I have four patches for v5.4. Nothing is major. All but one are in 2019-09-23 14:25:45 -07:00
sound Main MIPS changes for v5.4: 2019-09-22 09:30:30 -07:00
tools KVM: selftests: Remove duplicate guest mode handling 2019-09-24 13:37:24 +02:00
usr
virt * s390: ioctl hardening, selftests 2019-09-18 09:49:13 -07:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore Modules updates for v5.4 2019-09-22 10:34:46 -07:00
.mailmap Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2019-09-18 12:34:53 -07:00
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS - New Drivers 2019-09-23 19:37:49 -07:00
Makefile Modules updates for v5.4 2019-09-22 10:34:46 -07:00
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.

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.