From: "Radim Krčmář" <rkrcmar@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
Marcelo Tosatti <mtosatti@redhat.com>
Subject: Re: [PATCH] kvm: kvmclock: let KVM_GET_CLOCK return whether the master clock is in use
Date: Sat, 19 Nov 2016 20:34:34 +0100 [thread overview]
Message-ID: <20161119193433.GG26213@potion> (raw)
In-Reply-To: <1478710095-15022-1-git-send-email-pbonzini@redhat.com>
2016-11-09 17:48+0100, Paolo Bonzini:
> Userspace can read the exact value of kvmclock by reading the TSC
> and fetching the timekeeping parameters out of guest memory. This
> however is brittle and not necessary anymore with KVM 4.11. Provide
> a mechanism that lets userspace know if the new KVM_GET_CLOCK
> semantics are in effect, and---since we are at it---if the clock
> is stable across all VCPUs.
>
> Cc: Radim Krčmář <rkrcmar@redhat.com>
> Cc: Marcelo Tosatti <mtosatti@redhat.com>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
Applied to kvm/master, thanks.
prev parent reply other threads:[~2016-11-19 19:34 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-09 16:48 [PATCH] kvm: kvmclock: let KVM_GET_CLOCK return whether the master clock is in use Paolo Bonzini
2016-11-09 20:12 ` Marcelo Tosatti
2016-11-09 20:17 ` Marcelo Tosatti
2016-11-09 21:14 ` Marcelo Tosatti
2016-11-09 22:03 ` Paolo Bonzini
2016-11-09 21:43 ` Marcelo Tosatti
2016-11-19 19:34 ` Radim Krčmář [this message]
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