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Sean Christopherson 462f8ddebc KVM: x86: Fix implicit enum conversion goof in scattered reverse CPUID code
Take "enum kvm_only_cpuid_leafs" in scattered specific CPUID helpers
(which is obvious in hindsight), and use "unsigned int" for leafs that
can be the kernel's standard "enum cpuid_leaf" or the aforementioned
KVM-only variant.  Loss of the enum params is a bit disapponting, but
gcc obviously isn't providing any extra sanity checks, and the various
BUILD_BUG_ON() assertions ensure the input is in range.

This fixes implicit enum conversions that are detected by clang-11:

arch/x86/kvm/cpuid.c:499:29: warning: implicit conversion from enumeration type 'enum kvm_only_cpuid_leafs' to different enumeration type 'enum cpuid_leafs' [-Wenum-conversion]
        kvm_cpu_cap_init_scattered(CPUID_12_EAX,
        ~~~~~~~~~~~~~~~~~~~~~~~~~~ ^~~~~~~~~~~~
arch/x86/kvm/cpuid.c:837:31: warning: implicit conversion from enumeration type 'enum kvm_only_cpuid_leafs' to different enumeration type 'enum cpuid_leafs' [-Wenum-conversion]
                cpuid_entry_override(entry, CPUID_12_EAX);
                ~~~~~~~~~~~~~~~~~~~~        ^~~~~~~~~~~~
2 warnings generated.

Fixes: 4e66c0cb79 ("KVM: x86: Add support for reverse CPUID lookup of scattered features")
Cc: Kai Huang <kai.huang@intel.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210421010850.3009718-1-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-04-23 07:43:11 -04:00
Documentation KVM/arm64 updates for Linux 5.13 2021-04-23 07:41:17 -04:00
LICENSES LICENSES: Add the CC-BY-4.0 license 2020-12-08 10:33:27 -07:00
arch KVM: x86: Fix implicit enum conversion goof in scattered reverse CPUID code 2021-04-23 07:43:11 -04:00
block block: remove the unused RQF_ALLOCED flag 2021-04-02 11:18:31 -06:00
certs certs: Replace K{U,G}IDT_INIT() with GLOBAL_ROOT_{U,G}ID 2021-01-21 16:16:10 +00:00
crypto crypto: mips/poly1305 - enable for all MIPS processors 2021-03-08 11:52:17 +01:00
drivers KVM/arm64 updates for Linux 5.13 2021-04-23 07:41:17 -04:00
fs io_uring-5.12-2021-04-03 2021-04-03 14:26:47 -07:00
include KVM/arm64 updates for Linux 5.13 2021-04-23 07:41:17 -04:00
init cgroup: Add misc cgroup controller 2021-04-04 13:34:46 -04:00
ipc fs: make helpers idmap mount aware 2021-01-24 14:27:20 +01:00
kernel KVM/arm64 updates for Linux 5.13 2021-04-23 07:41:17 -04:00
lib KVM/arm64 updates for Linux 5.13 2021-04-23 07:41:17 -04:00
mm mm: fix race by making init_zero_pfn() early_initcall 2021-03-30 09:46:12 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-03-24 18:16:04 -07:00
samples Merge git://git.kernel.org:/pub/scm/linux/kernel/git/netdev/net 2021-03-09 17:15:56 -08:00
scripts kbuild: lto: Merge module sections if and only if CONFIG_LTO_CLANG is enabled 2021-04-01 14:15:59 -07:00
security tomoyo: don't special case PF_IO_WORKER for PF_KTHREAD 2021-03-28 13:11:29 +09:00
sound sound fixes for 5.12-rc6 2021-04-01 10:09:31 -07:00
tools KVM/arm64 updates for Linux 5.13 2021-04-23 07:41:17 -04:00
usr Kbuild updates for v5.12 2021-02-25 10:17:31 -08:00
virt KVM: Boost vCPU candidate in user mode which is delivering interrupt 2021-04-21 12:20:03 -04:00
.clang-format cxl for 5.12 2021-02-24 09:38:36 -08:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore clang-lto series for v5.12-rc1 2021-02-23 09:28:51 -08:00
.mailmap Merge branch 'akpm' (patches from Andrew) 2021-03-25 11:43:43 -07:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS treewide: Miguel has moved 2021-02-26 09:41:03 -08:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS KVM/arm64 updates for Linux 5.13 2021-04-23 07:41:17 -04:00
Makefile Linux 5.12-rc5 2021-03-28 15:48:16 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.