From: Roman Kagan <rkagan@virtuozzo.com>
To: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Richard Henderson <rth@twiddle.net>,
Eduardo Habkost <ehabkost@redhat.com>,
Marcelo Tosatti <mtosatti@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v2 2/2] x86: hv_evmcs CPU flag support
Date: Tue, 23 Oct 2018 12:51:35 +0000 [thread overview]
Message-ID: <20181023125131.GA14424@rkaganb> (raw)
In-Reply-To: <20181022165506.30332-3-vkuznets@redhat.com>
On Mon, Oct 22, 2018 at 06:55:06PM +0200, Vitaly Kuznetsov wrote:
> Adds a new CPU flag to enable the Enlightened VMCS KVM feature.
> QEMU enables KVM_CAP_HYPERV_ENLIGHTENED_VMCS and gets back the
> version to be advertised in lower 16 bits of CPUID.0x4000000A:EAX.
>
> Suggested-by: Ladi Prosek <lprosek@redhat.com>
> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
> ---
> Changes since v1:
> - Throw away HV_CPUID_MIN_NESTED.
> - Create zeroed 0x40000006-0x40000009 CPUID leaves.
> ---
> target/i386/cpu.c | 1 +
> target/i386/cpu.h | 1 +
> target/i386/hyperv-proto.h | 2 ++
> target/i386/kvm.c | 30 ++++++++++++++++++++++++++++--
> 4 files changed, 32 insertions(+), 2 deletions(-)
Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
next prev parent reply other threads:[~2018-10-23 12:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-22 16:55 [Qemu-devel] [PATCH v2 0/2] i386/kvm: add support for Hyper-V Enlightened VMCS Vitaly Kuznetsov
2018-10-22 16:55 ` [Qemu-devel] [PATCH v2 1/2] linux-headers: update Vitaly Kuznetsov
2018-10-22 16:55 ` [Qemu-devel] [PATCH v2 2/2] x86: hv_evmcs CPU flag support Vitaly Kuznetsov
2018-10-23 12:51 ` Roman Kagan [this message]
2018-10-30 17:38 ` Vitaly Kuznetsov
2018-10-30 17:49 ` Paolo Bonzini
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