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Filename Latest commit message Latest commit date
Paolo Bonzini 9034e6e895 KVM: x86: fix use of L1 MMIO areas in nested guests
There is currently some confusion between nested and L1 GPAs.  The
assignment to "direct" in kvm_mmu_page_fault tries to fix that, but
it is not enough.  What this patch does is fence off the MMIO cache
completely when using shadow nested page tables, since we have neither
a GVA nor an L1 GPA to put in the cache.  This also allows some
simplifications in kvm_mmu_page_fault and FNAME(page_fault).

The EPT misconfig likewise does not have an L1 GPA to pass to
kvm_io_bus_write, so that must be skipped for guest mode.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
[Changed comment to say "GPAs" instead of "L1's physical addresses", as
 per David's review. - Radim]
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2017-08-18 14:37:49 +02:00
arch KVM: x86: fix use of L1 MMIO areas in nested guests 2017-08-18 14:37:49 +02:00
block
certs
crypto
Documentation
drivers platform-drivers-x86 for v4.13-4 2017-08-06 16:11:34 -07:00
firmware
fs A large number of ext4 bug fixes and cleanups for v4.13 2017-08-06 12:31:17 -07:00
include KVM: add spinlock optimization framework 2017-08-08 10:57:43 +02:00
init
ipc
kernel Fix compat_sys_sigpending breakage 2017-08-06 11:48:27 -07:00
lib
mm
net
samples
scripts
security
sound
tools
usr
virt kvm: avoid uninitialized-variable warnings 2017-08-15 18:56:14 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS KVM: MAINTAINERS improvements 2017-08-11 18:53:18 +02:00
Makefile Linux 4.13-rc4 2017-08-06 18:44:49 -07:00
README

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

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

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.