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From: Paolo Bonzini <pbonzini@redhat.com>
To: Liviu Ionescu <ilg@livius.net>
Cc: Peter Maydell <peter.maydell@linaro.org>,
	Peter Crosthwaite <peter.crosthwaite@xilinx.com>,
	QEMU Developers <qemu-devel@nongnu.org>,
	Igor Mammedov <imammedo@redhat.com>
Subject: Re: [Qemu-devel] [RFC] extensions to the -m memory option
Date: Mon, 01 Jun 2015 11:41:10 +0200	[thread overview]
Message-ID: <556C28B6.5050803@redhat.com> (raw)
In-Reply-To: <770D59BE-11DE-4334-8933-05A6183CE93F@livius.net>



On 01/06/2015 11:23, Liviu Ionescu wrote:
> however, the desired behaviour is
> 
> - the -pflash specifies a file path, no need for size
> - when emulation starts, if -pflash is used and the file exists, its content is loaded as initial flash content
> - when emulation ends, if -pflash is used, the flash content is saved to this file
> - if the gdb server is used, it must allow for some parts of the flash to be overwritten by GDB, for example the bootloader is located either in low or high memory, and the rest of the flash is reprogrammed by the debugger with each session, the bootloader (and the rest of the flash) remaining persistent between sessions.
> 
> does the existing -pflash implementation matches this expected use case? 

Yes, entirely.  Saving flash content can be avoided by using "-drive
if=pflash,snapshot=on,file=...".

So it looks like you have a use for both -kernel (ELF) and -pflash (raw
image).

Paolo

  reply	other threads:[~2015-06-01  9:41 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-28 22:11 [Qemu-devel] [RFC] extensions to the -m memory option Liviu Ionescu
2015-05-29  9:11 ` Igor Mammedov
2015-05-29 19:22   ` Liviu Ionescu
2015-05-29 19:32     ` Peter Maydell
2015-05-29 20:26       ` Liviu Ionescu
2015-05-29 21:40         ` Peter Maydell
2015-05-29 21:49           ` Liviu Ionescu
2015-05-30  9:39             ` Peter Crosthwaite
2015-05-31 14:05               ` Liviu Ionescu
2015-05-31 18:45                 ` Peter Crosthwaite
2015-05-31 20:59                   ` Liviu Ionescu
2015-05-31 22:10                     ` Peter Crosthwaite
2015-05-31 22:24                       ` Liviu Ionescu
2015-05-31 22:27                         ` Peter Crosthwaite
2015-05-31 22:36                           ` Liviu Ionescu
2015-05-31 22:59                       ` Liviu Ionescu
2015-05-31 23:44                         ` Peter Crosthwaite
2015-06-01  0:14                           ` Liviu Ionescu
2015-06-01  2:26                             ` Peter Crosthwaite
2015-06-01  7:08                               ` Liviu Ionescu
2015-06-01 20:36                             ` Liviu Ionescu
2015-06-03 12:31                               ` Liviu Ionescu
2015-06-03 17:48                                 ` Peter Crosthwaite
2015-06-08  7:12                                   ` Markus Armbruster
2015-06-02 10:15                         ` Liviu Ionescu
2015-06-02 10:32                           ` Peter Crosthwaite
2015-06-02 10:42                             ` Peter Maydell
2015-06-02 11:01                               ` Liviu Ionescu
2015-06-02 20:23                                 ` Peter Crosthwaite
2015-06-01  7:19                 ` Paolo Bonzini
2015-06-01  8:30                   ` Liviu Ionescu
2015-06-01  8:53                     ` Paolo Bonzini
2015-06-01  9:16                       ` Peter Crosthwaite
2015-06-01  9:21                         ` Peter Maydell
2015-06-01  9:45                         ` Liviu Ionescu
2015-06-01  9:23                       ` Liviu Ionescu
2015-06-01  9:41                         ` Paolo Bonzini [this message]
2015-05-29 11:08 ` Paolo Bonzini
2015-05-29 19:27   ` Liviu Ionescu
2015-05-29 19:33     ` Paolo Bonzini
2015-05-29 20:13       ` Liviu Ionescu
2015-05-29 20:15         ` Paolo Bonzini
2015-05-29 20:38           ` Liviu Ionescu
2015-05-30  9:55   ` Peter Crosthwaite
2015-05-30 10:32     ` Paolo Bonzini
2015-05-30 20:20       ` Peter Crosthwaite

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