No description
  • C 98.2%
  • Assembly 1%
  • Makefile 0.3%
  • Shell 0.2%
  • Python 0.1%
Find a file
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Jim Mattson 43561123ab kvm: x86: Improve emulation of CPUID leaves 0BH and 1FH
For these CPUID leaves, the EDX output is not dependent on the ECX
input (i.e. the SIGNIFCANT_INDEX flag doesn't apply to
EDX). Furthermore, the low byte of the ECX output is always identical
to the low byte of the ECX input. KVM does not produce the correct ECX
and EDX outputs for any undefined subleaves beyond the first.

Special-case these CPUID leaves in kvm_cpuid, so that the ECX and EDX
outputs are properly generated for all undefined subleaves.

Fixes: 0771671749 ("KVM: Enhance guest cpuid management")
Fixes: a87f2d3a6e ("KVM: x86: Add Intel CPUID.1F cpuid emulation support")
Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Marc Orr <marcorr@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Reviewed-by: Jacob Xu <jacobhxu@google.com>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-09-26 12:31:31 +02:00
arch kvm: x86: Improve emulation of CPUID leaves 0BH and 1FH 2019-09-26 12:31:31 +02:00
block
certs
crypto
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 cpu/SMT: create and export cpu_smt_possible() 2019-09-24 13:37:28 +02:00
init Modules updates for v5.4 2019-09-22 10:34:46 -07:00
ipc
kernel Revert "locking/pvqspinlock: Don't wait if vCPU is preempted" 2019-09-25 10:22:37 +02:00
lib Modules updates for v5.4 2019-09-22 10:34:46 -07:00
LICENSES
mm
net
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
tools KVM: x86: Check kvm_rebooting in kvm_spurious_fault() 2019-09-25 15:23:33 +02:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore Modules updates for v5.4 2019-09-22 10:34:46 -07:00
.mailmap
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.