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From: "Roger Pau Monné" <roger.pau@citrix.com>
To: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Xen-devel <xen-devel@lists.xenproject.org>,
	Alejandro Vallejo <alejandro.vallejo@cloud.com>,
	Julien Grall <jgrall@amazon.com>,
	Shawn Anastasio <sanastasio@raptorengineering.com>,
	Oleksii Kurochko <oleksii.kurochko@gmail.com>,
	Henry Wang <Henry.Wang@arm.com>,
	George Dunlap <George.Dunlap@eu.citrix.com>,
	Jan Beulich <JBeulich@suse.com>,
	Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wl@xen.org>,
	Julien Grall <julien@xen.org>
Subject: Re: [PATCH for-4.18 v5] xen/pdx: Make CONFIG_PDX_COMPRESSION a common Kconfig option
Date: Fri, 6 Oct 2023 17:18:06 +0200	[thread overview]
Message-ID: <ZSAlLuJ-j4wDgfKg@MacBookPdeRoger> (raw)
In-Reply-To: <20231006144405.1078260-1-andrew.cooper3@citrix.com>

On Fri, Oct 06, 2023 at 03:44:05PM +0100, Andrew Cooper wrote:
> From: Alejandro Vallejo <alejandro.vallejo@cloud.com>
> 
> Adds a new compile-time flag to allow disabling PDX compression and
> compiles out compression-related code/data. It also shorts the pdx<->pfn
> conversion macros and creates stubs for masking functions.
> 
> While at it, removes the old arch-defined CONFIG_HAS_PDX flag.  Despite the
> illusion of choice, it was not optional.
> 
> There are ARM and PPC platforms with sparse RAM banks - leave compression
> active by default there.  OTOH, there are no known production x86 systems with
> sparse RAM banks, so disable compression.  This decision can be revisited if
> such a platform comes along.
> 
> Signed-off-by: Alejandro Vallejo <alejandro.vallejo@cloud.com>
> Reviewed-by: Julien Grall <jgrall@amazon.com>
> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>

Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>

Thanks, Roger.


  parent reply	other threads:[~2023-10-06 15:18 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-06 14:44 [PATCH for-4.18 v5] xen/pdx: Make CONFIG_PDX_COMPRESSION a common Kconfig option Andrew Cooper
2023-10-06 15:09 ` Julien Grall
2023-10-06 15:27   ` Roger Pau Monné
2023-10-16 13:19     ` Jan Beulich
2023-10-16 13:40       ` Roger Pau Monné
2023-10-16 14:02         ` Jan Beulich
2023-10-06 16:01   ` Andrew Cooper
2023-10-09 11:30     ` Julien Grall
2023-10-16 13:22     ` Jan Beulich
2023-10-06 15:18 ` Roger Pau Monné [this message]
2023-10-10  7:58 ` Oleksii
2023-10-10  8:52   ` Andrew Cooper
2023-10-11 14:31     ` Oleksii
2023-10-11 17:25       ` Andrew Cooper
2023-10-12  1:05         ` Henry Wang

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