From: Takuya Yoshikawa <takuya.yoshikawa@gmail.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Avi Kivity <avi@redhat.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
x86@kernel.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org, davej@redhat.com
Subject: Re: [PATCH] kvm: update eax documentation in signature cpuid
Date: Tue, 1 May 2012 22:24:21 +0900 [thread overview]
Message-ID: <20120501222421.d35390564b5fd4d7fbcba76f@gmail.com> (raw)
In-Reply-To: <20120501130611.GA8357@redhat.com>
On Tue, 1 May 2012 16:06:11 +0300
"Michael S. Tsirkin" <mst@redhat.com> wrote:
> Note that this value in ebx, ecx and edx corresponds to the string "KVMKVMKVM".
> +The value in eax corresponds to the maximim cpuid function present in this leaf,
maximum?
Takuya
> +and will be updated if more functions are added in the future.
> +Note also that old hosts set eax value to 0x0. This should
> +be interpreted as if the value was 0x40000001.
> This function queries the presence of KVM cpuid leafs.
prev parent reply other threads:[~2012-05-01 13:24 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-01 13:06 [PATCH] kvm: update eax documentation in signature cpuid Michael S. Tsirkin
2012-05-01 13:24 ` Takuya Yoshikawa [this message]
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