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From: Peter Xu <peterx@redhat.com>
To: David Hildenbrand <david@redhat.com>
Cc: "Stefan Hajnoczi" <stefanha@gmail.com>,
	ThinerLogoer <logoerthiner1@163.com>,
	"stefanha@redhat.com" <stefanha@redhat.com>,
	qemu-devel@nongnu.org, "Paolo Bonzini" <pbonzini@redhat.com>,
	"Igor Mammedov" <imammedo@redhat.com>,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>
Subject: Re: [PATCH v1 1/3] softmmu/physmem: fallback to opening guest RAM file as readonly in a MAP_PRIVATE mapping
Date: Thu, 17 Aug 2023 11:31:56 -0400	[thread overview]
Message-ID: <ZN49bPlANaNrgXCu@x1n> (raw)
In-Reply-To: <9b2b884e-095c-7cd5-380b-b3b0c5aad9b6@redhat.com>

On Thu, Aug 17, 2023 at 05:15:52PM +0200, David Hildenbrand wrote:
> > I don't know how important that requirement was (that commit was a
> > request from Kata Containers).
> 
> Let me take a look if Kata passes "share=on,readonly=on" or
> "share=off,readonly=off".

The question is whether it's good enough if we change the semantics as long
as we guarantee the original purposes of when introducing those flags would
be enough (nvdimm, kata, etc.), as anything introduced in qemu can
potentially be used elsewhere too.

David, could you share your concern on simply "having a new flag, while
keeping all existing flags unchanged on behavior"?  You mentioned it's not
wanted, but I didn't yet see the reason behind.

Thanks,

-- 
Peter Xu



  parent reply	other threads:[~2023-08-17 15:32 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-07 19:07 [PATCH v1 0/3] softmmu/physmem: file_ram_open() readonly improvements David Hildenbrand
2023-08-07 19:07 ` [PATCH v1 1/3] softmmu/physmem: fallback to opening guest RAM file as readonly in a MAP_PRIVATE mapping David Hildenbrand
2023-08-08 21:01   ` Peter Xu
2023-08-09  5:39     ` ThinerLogoer
2023-08-09  9:20     ` David Hildenbrand
2023-08-09 15:15       ` Peter Xu
2023-08-10 14:19         ` David Hildenbrand
2023-08-10 17:06           ` ThinerLogoer
2023-08-10 21:24             ` Peter Xu
2023-08-11  5:49               ` ThinerLogoer
2023-08-11 14:31                 ` Peter Xu
2023-08-12  6:21                   ` ThinerLogoer
2023-08-22 13:35                     ` David Hildenbrand
2023-08-11 19:00                 ` David Hildenbrand
2023-08-12  5:18                   ` ThinerLogoer
2023-08-17  9:07                     ` David Hildenbrand
2023-08-17 14:30                       ` David Hildenbrand
2023-08-17 14:37                         ` Daniel P. Berrangé
2023-08-17 14:37                           ` David Hildenbrand
2023-08-17 14:45                             ` Daniel P. Berrangé
2023-08-17 14:47                               ` David Hildenbrand
2023-08-17 14:41                       ` Peter Xu
2023-08-17 15:02                         ` David Hildenbrand
2023-08-17 15:13                       ` Stefan Hajnoczi
2023-08-17 15:15                         ` David Hildenbrand
2023-08-17 15:25                           ` David Hildenbrand
2023-08-17 15:31                           ` Peter Xu [this message]
2023-08-17 15:43                             ` David Hildenbrand
2023-08-17 13:46                   ` Daniel P. Berrangé
2023-08-17 13:48                     ` David Hildenbrand
2023-08-11 14:59               ` David Hildenbrand
2023-08-11 15:26                 ` David Hildenbrand
2023-08-11 16:16                   ` Peter Xu
2023-08-11 16:17                     ` David Hildenbrand
2023-08-11 16:22                       ` Peter Xu
2023-08-11 16:25                         ` David Hildenbrand
2023-08-11 16:54                           ` Peter Xu
2023-08-11 17:39                             ` David Hildenbrand
2023-08-11 21:07                               ` Peter Xu
2023-08-21 12:20                   ` Igor Mammedov
2023-08-11 15:47                 ` Peter Xu
2023-08-17 13:42           ` Daniel P. Berrangé
2023-08-17 13:45             ` David Hildenbrand
2023-08-17 13:37   ` Daniel P. Berrangé
2023-08-17 13:44     ` David Hildenbrand
2023-08-07 19:07 ` [PATCH v1 2/3] softmmu/physmem: fail creation of new files in file_ram_open() with readonly=true David Hildenbrand
2023-08-07 19:07 ` [PATCH v1 3/3] softmmu/physmem: never return directories from file_ram_open() David Hildenbrand
2023-08-08 17:26 ` Re:[PATCH v1 0/3] softmmu/physmem: file_ram_open() readonly improvements ThinerLogoer
2023-08-10 11:11   ` [PATCH " Philippe Mathieu-Daudé
2023-08-10 16:35     ` ThinerLogoer

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