From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: qemu-devel@nongnu.org
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Marcelo Tosatti <mtosatti@redhat.com>
Subject: [PATCH 0/2] i386: Add support for Hyper-V Enlightened MSR-Bitmap feature
Date: Wed, 5 Jan 2022 09:57:02 +0100 [thread overview]
Message-ID: <20220105085704.1267530-1-vkuznets@redhat.com> (raw)
The new nested specific enlightenment speeds up L2 vmexits by avoiding
unnecessary updates to L2 MSR-Bitmap. Support for both VMX and SVM is
coming to KVM:
https://lore.kernel.org/kvm/20211129094704.326635-1-vkuznets@redhat.com/
https://lore.kernel.org/kvm/20211220152139.418372-1-vkuznets@redhat.com/
Vitaly Kuznetsov (2):
i386: Use hv_build_cpuid_leaf() for HV_CPUID_NESTED_FEATURES
i386: Hyper-V Enlightened MSR bitmap feature
docs/hyperv.txt | 10 ++++++++++
target/i386/cpu.c | 2 ++
target/i386/cpu.h | 2 +-
target/i386/kvm/hyperv-proto.h | 5 +++++
target/i386/kvm/kvm.c | 30 ++++++++++++++++++++++--------
5 files changed, 40 insertions(+), 9 deletions(-)
--
2.33.1
next reply other threads:[~2022-01-05 9:01 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-05 8:57 Vitaly Kuznetsov [this message]
2022-01-05 8:57 ` [PATCH 1/2] i386: Use hv_build_cpuid_leaf() for HV_CPUID_NESTED_FEATURES Vitaly Kuznetsov
2022-01-05 8:57 ` [PATCH 2/2] i386: Hyper-V Enlightened MSR bitmap feature Vitaly Kuznetsov
2022-01-27 9:45 ` [PATCH 0/2] i386: Add support for Hyper-V Enlightened MSR-Bitmap feature Vitaly Kuznetsov
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