All of lore.kernel.org
 help / color / mirror / Atom feed
From: Marc Zyngier <maz@kernel.org>
To: Oliver Upton <oliver.upton@linux.dev>
Cc: kvmarm@lists.linux.dev, kvm@vger.kernel.org,
	James Morse <james.morse@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Zenghui Yu <yuzenghui@huawei.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 00/23] KVM: arm64: Improvements to LPI injection
Date: Wed, 14 Feb 2024 17:43:13 +0000	[thread overview]
Message-ID: <86y1bn3pse.wl-maz@kernel.org> (raw)
In-Reply-To: <20240213093250.3960069-1-oliver.upton@linux.dev>

On Tue, 13 Feb 2024 09:32:37 +0000,
Oliver Upton <oliver.upton@linux.dev> wrote:
> 
> For full details on the what/why, please see the cover letter in v1.
> 
> Apologies for the delay on v2, I wanted to spend some time to get a
> microbenchmark in place to slam the ITS code pretty hard, and based on
> the results I'm glad I did.

[...]

Buglets and potential improvements aside, I like the smell of this. At
least the first handful of patches could easily be taken as a separate
improvement series.

Let me know how you'd like to play this.

Thanks,

	M.

-- 
Without deviation from the norm, progress is not possible.

  parent reply	other threads:[~2024-02-14 17:43 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-13  9:32 [PATCH v2 00/23] KVM: arm64: Improvements to LPI injection Oliver Upton
2024-02-13  9:32 ` [PATCH v2 01/23] KVM: arm64: Add tracepoints + stats for LPI cache effectiveness Oliver Upton
2024-02-14 15:55   ` Marc Zyngier
2024-02-13  9:32 ` [PATCH v2 02/23] KVM: arm64: vgic: Store LPIs in an xarray Oliver Upton
2024-02-13 21:52   ` Oliver Upton
2024-02-13  9:32 ` [PATCH v2 03/23] KVM: arm64: vgic: Use xarray to find LPI in vgic_get_lpi() Oliver Upton
2024-02-13  9:32 ` [PATCH v2 04/23] KVM: arm64: vgic-v3: Iterate the xarray to find pending LPIs Oliver Upton
2024-02-13  9:32 ` [PATCH v2 05/23] KVM: arm64: vgic-its: Walk the LPI xarray in vgic_copy_lpi_list() Oliver Upton
2024-02-13  9:32 ` [PATCH v2 06/23] KVM: arm64: vgic: Get rid of the LPI linked-list Oliver Upton
2024-02-13  9:32 ` [PATCH v2 07/23] KVM: arm64: vgic: Use atomics to count LPIs Oliver Upton
2024-02-14 16:47   ` Marc Zyngier
2024-02-14 18:32     ` Oliver Upton
2024-02-14 20:01       ` Marc Zyngier
2024-02-14 23:01         ` Oliver Upton
2024-02-15  9:44           ` Marc Zyngier
2024-02-13  9:32 ` [PATCH v2 08/23] KVM: arm64: vgic: Free LPI vgic_irq structs in an RCU-safe manner Oliver Upton
2024-02-13  9:32 ` [PATCH v2 09/23] KVM: arm64: vgic: Rely on RCU protection in vgic_get_lpi() Oliver Upton
2024-02-13  9:32 ` [PATCH v2 10/23] KVM: arm64: vgic: Ensure the irq refcount is nonzero when taking a ref Oliver Upton
2024-02-13  9:32 ` [PATCH v2 11/23] KVM: arm64: vgic: Don't acquire the lpi_list_lock in vgic_put_irq() Oliver Upton
2024-02-13  9:32 ` [PATCH v2 12/23] KVM: arm64: vgic-its: Lazily allocate LPI translation cache Oliver Upton
2024-02-13  9:32 ` [PATCH v2 13/23] KVM: arm64: vgic-its: Pick cache victim based on usage count Oliver Upton
2024-02-13  9:37 ` [PATCH v2 14/23] KVM: arm64: vgic-its: Protect cached vgic_irq pointers with RCU Oliver Upton
2024-02-13  9:39 ` [PATCH v2 15/23] KVM: arm64: vgic-its: Treat the LPI translation cache as an rculist Oliver Upton
2024-02-13  9:40 ` [PATCH v2 16/23] KVM: arm64: vgic-its: Rely on RCU to protect translation cache reads Oliver Upton
2024-02-13  9:40 ` [PATCH v2 17/23] KVM: selftests: Align with kernel's GIC definitions Oliver Upton
2024-02-13  9:40 ` [PATCH v2 18/23] KVM: selftests: Standardise layout of GIC frames Oliver Upton
2024-02-13  9:41 ` [PATCH v2 19/23] KVM: selftests: Add a minimal library for interacting with an ITS Oliver Upton
2024-02-14 17:32   ` Marc Zyngier
2024-02-14 19:00     ` Oliver Upton
2024-02-14 20:09       ` Marc Zyngier
2024-02-14 20:55         ` Oliver Upton
2024-02-14 21:06           ` Oliver Upton
2024-02-13  9:41 ` [PATCH v2 20/23] KVM: selftests: Add helper for enabling LPIs on a redistributor Oliver Upton
2024-02-13  9:42 ` [PATCH v2 21/23] KVM: selftests: Use MPIDR_HWID_BITMASK from cputype.h Oliver Upton
2024-02-13  9:43 ` [PATCH v2 22/23] KVM: selftests: Hack in support for aligned page allocations Oliver Upton
2024-02-13  9:43 ` [PATCH v2 23/23] KVM: selftests: Add stress test for LPI injection Oliver Upton
2024-02-13 20:12 ` [PATCH v2 00/23] KVM: arm64: Improvements to " Oliver Upton
2024-02-14 17:43 ` Marc Zyngier [this message]
2024-02-14 18:40   ` Oliver Upton
2024-02-15 15:37     ` Marc Zyngier
2024-02-15 20:15       ` Oliver Upton

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=86y1bn3pse.wl-maz@kernel.org \
    --to=maz@kernel.org \
    --cc=james.morse@arm.com \
    --cc=kvm@vger.kernel.org \
    --cc=kvmarm@lists.linux.dev \
    --cc=linux-kernel@vger.kernel.org \
    --cc=oliver.upton@linux.dev \
    --cc=suzuki.poulose@arm.com \
    --cc=yuzenghui@huawei.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.