From: Emanuele Giuseppe Esposito <eesposit@redhat.com>
To: kvm@vger.kernel.org
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Jonathan Corbet <corbet@lwn.net>,
Sean Christopherson <seanjc@google.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Emanuele Giuseppe Esposito <eesposit@redhat.com>,
Jim Mattson <jmattson@google.com>, Ingo Molnar <mingo@redhat.com>,
Borislav Petkov <bp@alien8.de>, "H. Peter Anvin" <hpa@zytor.com>,
Shuah Khan <shuah@kernel.org>, Alexander Graf <graf@amazon.com>,
Andrew Jones <drjones@redhat.com>,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-kselftest@vger.kernel.org
Subject: [PATCH v5 0/4] KVM: cpuid: fix KVM_GET_EMULATED_CPUID implementation
Date: Fri, 9 Apr 2021 14:54:19 +0200 [thread overview]
Message-ID: <20210409125423.26288-1-eesposit@redhat.com> (raw)
This series aims to clarify the behavior of the KVM_GET_EMULATED_CPUID
ioctl, and fix a corner case where -E2BIG is returned when
the nent field of struct kvm_cpuid2 is matching the amount of
emulated entries that kvm returns.
Patch 1 proposes the nent field fix to cpuid.c,
patch 2 updates the ioctl documentation accordingly and
patches 3 and 4 extend the x86_64/get_cpuid_test.c selftest to check
the intended behavior of KVM_GET_EMULATED_CPUID.
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
---
v5:
- Better comment in cpuid.c (patch 1)
Emanuele Giuseppe Esposito (4):
KVM: x86: Fix a spurious -E2BIG in KVM_GET_EMULATED_CPUID
Documentation: KVM: update KVM_GET_EMULATED_CPUID ioctl description
selftests: add kvm_get_emulated_cpuid to processor.h
selftests: KVM: extend get_cpuid_test to include
KVM_GET_EMULATED_CPUID
Documentation/virt/kvm/api.rst | 10 +--
arch/x86/kvm/cpuid.c | 33 ++++---
.../selftests/kvm/include/x86_64/processor.h | 1 +
.../selftests/kvm/lib/x86_64/processor.c | 33 +++++++
.../selftests/kvm/x86_64/get_cpuid_test.c | 90 ++++++++++++++++++-
5 files changed, 142 insertions(+), 25 deletions(-)
--
2.30.2
next reply other threads:[~2021-04-09 12:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-09 12:54 Emanuele Giuseppe Esposito [this message]
2021-04-09 12:54 ` [PATCH v5 1/4] KVM: x86: Fix a spurious -E2BIG in KVM_GET_EMULATED_CPUID Emanuele Giuseppe Esposito
2021-04-09 12:54 ` [PATCH v5 2/4] Documentation: KVM: update KVM_GET_EMULATED_CPUID ioctl description Emanuele Giuseppe Esposito
2021-04-09 12:54 ` [PATCH v5 3/4] selftests: add kvm_get_emulated_cpuid to processor.h Emanuele Giuseppe Esposito
2021-04-09 12:54 ` [PATCH v5 4/4] selftests: KVM: extend get_cpuid_test to include KVM_GET_EMULATED_CPUID Emanuele Giuseppe Esposito
2021-04-09 13:03 ` [PATCH v5 0/4] KVM: cpuid: fix KVM_GET_EMULATED_CPUID implementation Borislav Petkov
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