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Like Xu 556f3c9ad7 KVM: x86/pmu: Limit the maximum number of supported AMD GP counters
The AMD PerfMonV2 specification allows for a maximum of 16 GP counters,
but currently only 6 pairs of MSRs are accepted by KVM.

While AMD64_NUM_COUNTERS_CORE is already equal to 6, increasing without
adjusting msrs_to_save_all[] could result in out-of-bounds accesses.
Therefore introduce a macro (named KVM_AMD_PMC_MAX_GENERIC) to
refer to the number of counters supported by KVM.

Signed-off-by: Like Xu <likexu@tencent.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Message-Id: <20220919091008.60695-3-likexu@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-11-09 12:26:54 -05:00
arch KVM: x86/pmu: Limit the maximum number of supported AMD GP counters 2022-11-09 12:26:54 -05:00
block
certs
crypto
Documentation Merge tag 'kvmarm-fixes-6.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD 2022-11-06 03:30:49 -05:00
drivers parisc architecture fixes for kernel v6.1-rc4: 2022-11-02 11:25:12 -07:00
fs NFS Client Bugfixes for Linux 6.1-rc 2022-11-02 11:18:13 -07:00
include
init
io_uring
ipc
kernel
lib
LICENSES
mm
net NFS Client Bugfixes for Linux 6.1-rc 2022-11-02 11:18:13 -07:00
rust
samples
scripts
security
sound
tools tools/kvm_stat: update exit reasons for vmx/svm/aarch64/userspace 2022-11-09 12:26:52 -05:00
usr
virt Merge tag 'kvmarm-fixes-6.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD 2022-11-06 03:30:49 -05:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
.rustfmt.toml
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS parisc architecture fixes for kernel v6.1-rc4: 2022-11-02 11:25:12 -07:00
Makefile
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.