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From: Easwar Hariharan <easwar.hariharan@linux.microsoft.com>
To: Emerson Busson <emersonbusson@gmail.com>
Cc: mhklinux@outlook.com, easwar.hariharan@linux.microsoft.com,
	kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org,
	decui@microsoft.com, andrew+netdev@lunn.ch, davem@davemloft.net,
	edumazet@google.com, kuba@kernel.org, pabeni@redhat.com,
	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
	linux-hyperv@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH v2 0/14] hv: vmbus: make rings and host-visible buffers survive buddy fragmentation
Date: Thu, 8 Oct 2026 09:55:27 -0700	[thread overview]
Message-ID: <28fe612a-e91b-4825-bb8c-f34c893c2dec@linux.microsoft.com> (raw)
In-Reply-To: <20261007190752.336426-1-emersonbusson@gmail.com>

On 10/7/2026 12:07, Emerson Busson wrote:
> This series moves VMBus ring backing to the chunk allocator and keeps the
> allocation, GPADL ownership, and mapping references together. It preserves
> the exported four-argument interfaces while allowing the private allocation
> paths to carry ownership and sharing policy.
> 
> A review of the original vzalloc fallback noted that CCA and TDX guests
> without a paravisor need direct-map page transitions. This revision uses
> contiguous chunks for buffers that must be host-shared, transitions each
> page through page_address(), and combines the chunks with vmap(). Ordinary
> guest-private buffers retain vzalloc-style allocation.
> 

Can you provide a link to the v1 of this changeset and this "original vzalloc
fallback" review? And a changelog and motivation for this series?

<snip>

Thanks,
Easwar (he/him)

      parent reply	other threads:[~2026-10-08 16:55 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-07 19:07 Emerson Busson
2026-10-07 19:07 ` [PATCH v2 01/14] hv: vmbus: convert ring backing through the chunk allocator Emerson Busson
2026-10-07 19:07 ` [PATCH v2 02/14] hv: vmbus: validate chunk buffer allocation and cleanup Emerson Busson
2026-10-07 19:07 ` [PATCH v2 03/14] uio: hv_generic: describe buffers for owned allocation Emerson Busson
2026-10-07 19:07 ` [PATCH v2 04/14] hv: vmbus: add KUnit tests for GPADL post failure injection Emerson Busson
2026-10-07 19:07 ` [PATCH v2 05/14] hv: vmbus: add KUnit test for order-zero allocation fallback Emerson Busson
2026-10-07 19:07 ` [PATCH v2 06/14] hv: vmbus: cover all shared-page policy combinations Emerson Busson
2026-10-07 19:07 ` [PATCH v2 07/14] hv: vmbus: distinguish host rescind from local channel unload Emerson Busson
2026-10-07 19:07 ` [PATCH v2 08/14] hv: vmbus: retain backing until ownership and references clear Emerson Busson
2026-10-07 19:07 ` [PATCH v2 09/14] hv: use owned VMBus buffers in NetVSC and UIO Emerson Busson
2026-10-07 19:07 ` [PATCH v2 10/14] hv: vmbus: pin buffer pages across UIO mmap to close the reclaim race Emerson Busson
2026-10-08 16:49   ` kernel test robot
2026-10-08 17:51     ` Nathan Chancellor
2026-10-08 17:02   ` kernel test robot
2026-10-07 19:07 ` [PATCH v2 11/14] hv: vmbus: vmalloc requestor metadata Emerson Busson
2026-10-07 19:07 ` [PATCH v2 12/14] hv: netvsc: allocate RNDIS request descriptors with kvzalloc_obj() Emerson Busson
2026-10-07 19:07 ` [PATCH v2 13/14] hv: netvsc: handle a NULL request address on empty completions Emerson Busson
2026-10-07 19:07 ` [PATCH v2 14/14] hv: netvsc: use kvzalloc for device state Emerson Busson
2026-10-08 16:55 ` Easwar Hariharan [this message]

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