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From: "Michael S. Tsirkin" <mst@redhat.com>
To: David Hildenbrand <david@redhat.com>
Cc: qemu-devel@nongnu.org, Paolo Bonzini <pbonzini@redhat.com>,
	Peter Crosthwaite <crosthwaite.peter@gmail.com>,
	Richard Henderson <rth@twiddle.net>,
	Igor Mammedov <imammedo@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v1 0/2] memory: fix alignment checks/asserts
Date: Fri, 8 Jun 2018 01:01:22 +0300	[thread overview]
Message-ID: <20180608010114-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <20180607154705.6316-1-david@redhat.com>

On Thu, Jun 07, 2018 at 05:47:03PM +0200, David Hildenbrand wrote:
> We can currently hit two asserts. Let's fix those.
> 
> Patch nr. 1 is a result from:
>     "[PATCH v4 00/14] MemoryDevice: use multi stage hotplug handlers"
> 
> We treat right now any alignment > 1GB as a violation, as it would
> fragment guest memory heavily. Turn the assert into a check.
> 
> Also, we run into an assert when using alignments that are not a power of
> two.

Reviewed-by: Michael S. Tsirkin <mst@redhat.com>

> David Hildenbrand (2):
>   memory-device: turn alignment assert into check
>   exec: check that alignment is a power of two
> 
>  exec.c                 | 4 ++++
>  hw/mem/memory-device.c | 8 +++++++-
>  2 files changed, 11 insertions(+), 1 deletion(-)
> 
> -- 
> 2.17.0

  parent reply	other threads:[~2018-06-07 22:01 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-07 15:47 [Qemu-devel] [PATCH v1 0/2] memory: fix alignment checks/asserts David Hildenbrand
2018-06-07 15:47 ` [Qemu-devel] [PATCH v1 1/2] memory-device: turn alignment assert into check David Hildenbrand
2018-06-08  8:28   ` Igor Mammedov
2018-06-07 15:47 ` [Qemu-devel] [PATCH v1 2/2] exec: check that alignment is a power of two David Hildenbrand
2018-06-08  8:30   ` Igor Mammedov
2018-06-07 22:01 ` Michael S. Tsirkin [this message]
2018-06-11 13:30 ` [Qemu-devel] [PATCH v1 0/2] memory: fix alignment checks/asserts Paolo Bonzini

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