From: Ricardo Koller <ricarkol@google.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
"H. Peter Anvin" <hpa@zytor.com>,
Sean Christopherson <seanjc@google.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Wanpeng Li <wanpengli@tencent.com>,
Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com,
Ricardo Koller <ricarkol@google.com>
Subject: [PATCH 0/5] KVM: x86: Use kernel x86 cpuid utilities in KVM selftests
Date: Wed, 21 Apr 2021 17:56:21 -0700 [thread overview]
Message-ID: <20210422005626.564163-1-ricarkol@google.com> (raw)
The kernel has a set of utilities and definitions to deal with x86 cpu
features. The x86 KVM selftests don't use them, and instead have
evolved to use differing and ad-hoc methods for checking features. The
advantage of the kernel feature definitions is that they use a format
that embeds the info needed to extract them from cpuid (function, index,
and register to use).
The first 3 patches massage the related cpuid header files in the kernel
side, then copy them into tools/ so they can be included by selftests.
The last 2 patches replace the tests checking for cpu features to use
the definitions and utilities introduced from the kernel.
Thanks,
Ricardo
Ricardo Koller (5):
KVM: x86: Move reverse CPUID helpers to separate header file
x86/cpu: Expose CPUID regs, leaf and index definitions to tools
tools headers x86: Copy cpuid helpers from the kernel
KVM: selftests: Introduce utilities for checking x86 features
KVM: selftests: Use kernel x86 cpuid features format
arch/x86/events/intel/pt.c | 1 +
arch/x86/include/asm/cpufeature.h | 23 +-
arch/x86/include/asm/processor.h | 11 -
arch/x86/kernel/cpu/scattered.c | 2 +-
arch/x86/kernel/cpuid.c | 2 +-
arch/x86/kvm/cpuid.h | 177 +-----------
arch/x86/kvm/reverse_cpuid.h | 185 +++++++++++++
tools/arch/x86/include/asm/cpufeature.h | 257 ++++++++++++++++++
tools/arch/x86/include/asm/cpufeatures.h | 3 +
.../selftests/kvm/include/x86_64/cpuid.h | 61 +++++
.../selftests/kvm/include/x86_64/processor.h | 16 --
.../kvm/include/x86_64/reverse_cpuid.h | 185 +++++++++++++
.../selftests/kvm/include/x86_64/svm_util.h | 11 +-
tools/testing/selftests/kvm/lib/x86_64/svm.c | 6 +-
tools/testing/selftests/kvm/lib/x86_64/vmx.c | 5 +-
tools/testing/selftests/kvm/steal_time.c | 5 +-
.../kvm/x86_64/cr4_cpuid_sync_test.c | 23 +-
.../selftests/kvm/x86_64/set_sregs_test.c | 25 +-
.../selftests/kvm/x86_64/vmx_pmu_msrs_test.c | 8 +-
.../kvm/x86_64/vmx_set_nested_state_test.c | 5 +-
.../selftests/kvm/x86_64/xss_msr_test.c | 10 +-
21 files changed, 749 insertions(+), 272 deletions(-)
create mode 100644 arch/x86/kvm/reverse_cpuid.h
create mode 100644 tools/arch/x86/include/asm/cpufeature.h
create mode 100644 tools/testing/selftests/kvm/include/x86_64/cpuid.h
create mode 100644 tools/testing/selftests/kvm/include/x86_64/reverse_cpuid.h
--
2.31.1.368.gbe11c130af-goog
next reply other threads:[~2021-04-22 0:56 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-22 0:56 Ricardo Koller [this message]
2021-04-22 0:56 ` [PATCH 1/5] KVM: x86: Move reverse CPUID helpers to separate header file Ricardo Koller
2021-04-22 0:56 ` [PATCH 2/5] x86/cpu: Expose CPUID regs, leaf and index definitions to tools Ricardo Koller
2021-04-22 0:56 ` [PATCH 3/5] tools headers x86: Copy cpuid helpers from the kernel Ricardo Koller
2021-04-22 6:59 ` Paolo Bonzini
2021-04-23 0:08 ` Ricardo Koller
2021-04-22 0:56 ` [PATCH 4/5] KVM: selftests: Introduce utilities for checking x86 features Ricardo Koller
2021-04-22 0:56 ` [PATCH 5/5] KVM: selftests: Use kernel x86 cpuid features format Ricardo Koller
2021-04-22 7:02 ` [PATCH 0/5] KVM: x86: Use kernel x86 cpuid utilities in KVM selftests Paolo Bonzini
2021-04-28 19:46 ` Ricardo Koller
2021-06-29 17:28 ` Jim Mattson
2021-07-08 16:50 ` Paolo Bonzini
2021-07-08 17:21 ` Ricardo Koller
2021-07-08 17:57 ` Paolo Bonzini
2021-07-08 19:46 ` Ricardo Koller
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