From: Avi Kivity <avi@redhat.com>
To: vatsa@linux.vnet.ibm.com
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
Gleb Natapov <gleb@redhat.com>,
linux-kernel@vger.kernel.org, npiggin@suse.de,
Jeremy Fitzhardinge <jeremy@goop.org>,
kvm@vger.kernel.org, bharata@in.ibm.com,
Balbir Singh <balbir@in.ibm.com>,
Jan Beulich <JBeulich@novell.com>
Subject: Re: [PATCH RFC 0/4] Paravirt-spinlock implementation for KVM guests (Version 0)
Date: Mon, 02 Aug 2010 11:50:52 +0300 [thread overview]
Message-ID: <4C5686EC.4060703@redhat.com> (raw)
In-Reply-To: <20100726061150.GB21699@linux.vnet.ibm.com>
On 07/26/2010 09:11 AM, Srivatsa Vaddagiri wrote:
> This patch-series implements paravirt-spinlock implementation for KVM guests,
> based heavily on Xen's implementation. I tried to refactor Xen's spinlock
> implementation to make it common for both Xen and KVM - but found that
> few differences between Xen and KVM (Xen has the ability to block on a
> particular event/irq for example) _and_ the fact that the guest kernel
> can be compiled to support both Xen and KVM hypervisors (CONFIG_XEN and
> CONFIG_KVM_GUEST can both be turned on) makes the "common" code a eye-sore.
> There will have to be:
>
> if (xen) {
> ...
> } else if (kvm) {
> ..
> }
>
> or possibly:
>
> alternative(NOP, some_xen_specific_call, ....)
>
> type of code in the common implementation.
I do think things are pretty common. If that is the only issue, you can
use a plain function vector, no?
--
error compiling committee.c: too many arguments to function
prev parent reply other threads:[~2010-08-02 8:51 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-26 6:11 [PATCH RFC 0/4] Paravirt-spinlock implementation for KVM guests (Version 0) Srivatsa Vaddagiri
2010-07-26 6:13 ` [PATCH RFC 1/4] Debugfs support for reading an array of u32-type integers Srivatsa Vaddagiri
2010-07-26 6:14 ` [PATCH RFC 2/4] Add yield hypercall for KVM guests Srivatsa Vaddagiri
2010-07-26 17:19 ` Jeremy Fitzhardinge
2010-07-28 14:55 ` Srivatsa Vaddagiri
2010-08-02 8:40 ` Avi Kivity
2010-08-03 5:16 ` Srivatsa Vaddagiri
2010-08-03 5:33 ` Srivatsa Vaddagiri
2010-08-02 8:32 ` Avi Kivity
2010-08-02 14:42 ` Ryan Harper
2010-08-02 14:50 ` Avi Kivity
2010-08-02 15:08 ` Jeremy Fitzhardinge
2010-07-26 6:15 ` [PATCH RFC 3/4] Paravirtualized spinlock implementation " Srivatsa Vaddagiri
2010-08-02 8:48 ` Avi Kivity
2010-08-02 15:20 ` Jeremy Fitzhardinge
2010-08-03 6:59 ` Avi Kivity
2010-08-03 17:47 ` Jeremy Fitzhardinge
2010-08-02 8:53 ` Avi Kivity
2010-07-26 6:16 ` [PATCH RFC 4/4] Add yield hypercall support in Qemu Srivatsa Vaddagiri
2010-07-26 17:18 ` [PATCH RFC 0/4] Paravirt-spinlock implementation for KVM guests (Version 0) Jeremy Fitzhardinge
2010-07-28 14:47 ` Srivatsa Vaddagiri
2010-07-28 22:10 ` Konrad Rzeszutek Wilk
2010-07-28 22:42 ` Konrad Rzeszutek Wilk
2010-08-02 8:50 ` Avi Kivity [this message]
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