From: cdall@linaro.org (Christoffer Dall)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 00/15] Move vcpu_load and vcpu_put calls to arch code
Date: Sun, 26 Nov 2017 10:11:08 +0100 [thread overview]
Message-ID: <20171126091108.GI28855@cbox> (raw)
In-Reply-To: <20171125205718.7731-1-christoffer.dall@linaro.org>
On Sat, Nov 25, 2017 at 09:57:03PM +0100, Christoffer Dall wrote:
> Some architectures may decide to do different things during
> kvm_arch_vcpu_load depending on the ioctl being executed. For example,
> arm64 is about to do significant work in vcpu load/put when running a
> vcpu, but it's problematic to do this for any other vcpu ioctl than
> KVM_RUN.
>
> Further, while it may be possible to call kvm_arch_vcpu_load() for a
> number of non-KVM_RUN ioctls, it makes the KVM/ARM code more difficult
> to reason about, especially after my optimization series, because a lot
> of things can now happen, where we have to consider if we're really in
> the process of running a vcpu or not.
>
> This series will first move the vcpu_load() and vcpu_put() calls in the
> arch generic dispatch function into each case of the switch statement
> and then, one-by-one, pushed the calls down into the architecture
> specific code making the changes for each ioctl as required.
>
And the patches are also available at:
git://git.kernel.org/pub/scm/linux/kernel/git/cdall/linux.git vcpu-load-put
Thanks,
-Christoffer
next prev parent reply other threads:[~2017-11-26 9:11 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-25 20:57 [PATCH 00/15] Move vcpu_load and vcpu_put calls to arch code Christoffer Dall
2017-11-25 20:57 ` [PATCH 01/15] KVM: Prepare for moving vcpu_load/vcpu_put into arch specific code Christoffer Dall
2017-11-27 16:53 ` Paolo Bonzini
2017-11-27 19:58 ` Christoffer Dall
2017-11-27 20:55 ` Paolo Bonzini
2017-11-25 20:57 ` [PATCH 02/15] KVM: Factor out vcpu->pid adjustment for KVM_RUN Christoffer Dall
2017-11-25 20:57 ` [PATCH 03/15] KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_run Christoffer Dall
2017-11-25 20:57 ` [PATCH 04/15] KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_get_regs Christoffer Dall
2017-11-25 20:57 ` [PATCH 05/15] KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_set_regs Christoffer Dall
2017-11-25 20:57 ` [PATCH 06/15] KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_get_sregs Christoffer Dall
2017-11-25 20:57 ` [PATCH 07/15] KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_set_sregs Christoffer Dall
2017-11-25 20:57 ` [PATCH 08/15] KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_get_mpstate Christoffer Dall
2017-11-25 20:57 ` [PATCH 09/15] KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_set_mpstate Christoffer Dall
2017-11-25 20:57 ` [PATCH 10/15] KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_translate Christoffer Dall
2017-11-25 20:57 ` [PATCH 11/15] KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_set_guest_debug Christoffer Dall
2017-11-27 19:28 ` Christoffer Dall
2017-11-25 20:57 ` [PATCH 12/15] KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_get_fpu Christoffer Dall
2017-11-25 20:57 ` [PATCH 13/15] KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_set_fpu Christoffer Dall
2017-11-25 20:57 ` [PATCH 14/15] KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl Christoffer Dall
2017-11-26 9:09 ` Christoffer Dall
2017-11-25 20:57 ` [PATCH 15/15] KVM: arm/arm64: Avoid vcpu_load for other vcpu ioctls than KVM_RUN Christoffer Dall
2017-11-26 9:11 ` Christoffer Dall [this message]
2017-11-28 20:55 ` [PATCH 00/15] Move vcpu_load and vcpu_put calls to arch code David Hildenbrand
2017-11-28 21:29 ` Paolo Bonzini
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