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From: Julien Grall <julien.grall@arm.com>
To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
	xen-devel@lists.xenproject.org, konrad@kernel.org,
	ross.lagerwall@citrix.com, mpohlack@amazon.de,
	sasha.levin@oracle.com, andrew.cooper3@citrix.com
Cc: Keir Fraser <keir@xen.org>,
	Stefano Stabellini <stefano.stabellini@citrix.com>,
	Jan Beulich <jbeulich@suse.com>
Subject: Re: [PATCH v6 09/24] xsplice: Implement payload loading
Date: Fri, 8 Apr 2016 16:35:13 +0100	[thread overview]
Message-ID: <5707CFB1.7090303@arm.com> (raw)
In-Reply-To: <1460000983-28170-10-git-send-email-konrad.wilk@oracle.com>

Hi Konrad,

On 07/04/16 04:49, Konrad Rzeszutek Wilk wrote:
> From: Ross Lagerwall <ross.lagerwall@citrix.com>
>
> Add support for loading xsplice payloads. This is somewhat similar to
> the Linux kernel module loader, implementing the following steps:
> - Verify the elf file.
> - Parse the elf file.
> - Allocate a region of memory mapped within a free area of
>    [xen_virt_end, XEN_VIRT_END].
> - Copy allocated sections into the new region. Split them in three
>    regions - .text, .data, and .rodata. MUST have at least .text.
> - Resolve section symbols. All other symbols must be absolute addresses.
>    (Note that patch titled "xsplice,symbols: Implement symbol name resolution
>     on address" implements that)
> - Perform relocations.
> - Secure the the regions (.text,.data,.rodata) with proper permissions.
>
> We capitalize on the vmalloc callback API (see patch titled:
> "vmap: Add vmalloc_cb and vfree_cb") to allocate a region
> of memory within the [xen_virt_end, XEN_VIRT_END] for the code.
>
> Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

For the ARM bits:

Acked-by: Julien Grall <julien.grall@arm.com>

Regards,

-- 
Julien Grall

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  parent reply	other threads:[~2016-04-08 15:35 UTC|newest]

Thread overview: 85+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-07  3:49 [PATCH v6] xSplice v1 design and implementation Konrad Rzeszutek Wilk
2016-04-07  3:49 ` [PATCH v6 01/24] xsplice: Design document Konrad Rzeszutek Wilk
2016-04-07 16:34   ` Ian Jackson
2016-04-07  3:49 ` [PATCH v6 02/24] xen/xsplice: Hypervisor implementation of XEN_XSPLICE_op Konrad Rzeszutek Wilk
2016-04-07 14:47   ` Andrew Cooper
2016-04-08 18:30   ` Konrad Rzeszutek Wilk
2016-04-07  3:49 ` [PATCH v6 03/24] libxc: Implementation of XEN_XSPLICE_op in libxc Konrad Rzeszutek Wilk
2016-04-07 19:53   ` Andrew Cooper
2016-04-07  3:49 ` [PATCH v6 04/24] xen-xsplice: Tool to manipulate xsplice payloads Konrad Rzeszutek Wilk
2016-04-07  3:49 ` [PATCH v6 05/24] arm/x86: Use struct virtual_region to do bug, symbol, and (x86) exception tables lookup Konrad Rzeszutek Wilk
2016-04-07 20:12   ` Andrew Cooper
2016-04-08 15:30   ` Julien Grall
2016-04-07  3:49 ` [PATCH v6 06/24] x86: Alter nmi_callback_t typedef Konrad Rzeszutek Wilk
2016-04-07 16:35   ` Ian Jackson
2016-04-07 20:13   ` Andrew Cooper
2016-04-08 20:44     ` Konrad Rzeszutek Wilk
2016-04-07  3:49 ` [PATCH v6 07/24] arm/x86/vmap: Add vmalloc_type and vm_init_type Konrad Rzeszutek Wilk
2016-04-08 14:22   ` Andrew Cooper
2016-04-08 17:19     ` Jan Beulich
2016-04-09  1:10       ` Konrad Rzeszutek Wilk
2016-04-08 15:32   ` Julien Grall
2016-04-07  3:49 ` [PATCH v6 08/24] xsplice: Add helper elf routines Konrad Rzeszutek Wilk
2016-04-07 16:19   ` Ian Jackson
2016-04-07 17:23     ` Jan Beulich
2016-04-07 20:32     ` Andrew Cooper
2016-04-08 13:26       ` Ian Jackson
2016-04-07 20:43     ` Konrad Rzeszutek Wilk
2016-04-08 14:53   ` Andrew Cooper
2016-04-08 21:26     ` Konrad Rzeszutek Wilk
2016-04-08 22:10       ` Andrew Cooper
2016-04-08 22:48         ` Jan Beulich
2016-04-07  3:49 ` [PATCH v6 09/24] xsplice: Implement payload loading Konrad Rzeszutek Wilk
2016-04-08 15:31   ` Andrew Cooper
2016-04-08 21:10     ` Konrad Rzeszutek Wilk
2016-04-08 21:18       ` Jan Beulich
2016-04-08 22:45         ` Konrad Rzeszutek Wilk
2016-04-08 22:50           ` Jan Beulich
2016-04-09  0:37             ` Konrad Rzeszutek Wilk
2016-04-09 11:48               ` Konrad Rzeszutek Wilk
2016-04-11 15:53               ` Jan Beulich
2016-04-11 16:03                 ` Konrad Rzeszutek Wilk
2016-04-11 16:34                   ` Konrad Rzeszutek Wilk
2016-04-11 16:55                     ` Jan Beulich
2016-04-11 17:08                       ` Konrad Rzeszutek Wilk
2016-04-11 17:26                         ` Jan Beulich
2016-04-11 18:21                           ` Konrad Rzeszutek Wilk
2016-04-11 18:57                             ` Konrad Rzeszutek Wilk
2016-04-08 15:35   ` Julien Grall [this message]
2016-04-07  3:49 ` [PATCH v6 10/24] xsplice: Implement support for applying/reverting/replacing patches Konrad Rzeszutek Wilk
2016-04-08 15:36   ` Julien Grall
2016-04-08 16:33   ` Andrew Cooper
2016-04-07  3:49 ` [PATCH v6 11/24] x86/xen_hello_world.xsplice: Test payload for patching 'xen_extra_version' Konrad Rzeszutek Wilk
2016-04-08 15:37   ` Julien Grall
2016-04-08 16:38   ` Andrew Cooper
2016-04-09  0:45   ` Konrad Rzeszutek Wilk
2016-04-07  3:49 ` [PATCH v6 12/24] xsplice, symbols: Implement symbol name resolution on address Konrad Rzeszutek Wilk
2016-04-08 16:55   ` Andrew Cooper
2016-04-07  3:49 ` [PATCH v6 13/24] x86, xsplice: Print payload's symbol name and payload name in backtraces Konrad Rzeszutek Wilk
2016-04-08 17:00   ` Andrew Cooper
2016-04-07  3:49 ` [PATCH v6 14/24] xsplice: Add support for bug frames Konrad Rzeszutek Wilk
2016-04-08 17:03   ` Andrew Cooper
2016-04-07  3:49 ` [PATCH v6 15/24] xsplice: Add support for exception tables Konrad Rzeszutek Wilk
2016-04-08 17:16   ` Andrew Cooper
2016-04-07  3:49 ` [PATCH v6 16/24] xsplice: Add support for alternatives Konrad Rzeszutek Wilk
2016-04-08 17:34   ` Andrew Cooper
2016-04-08 17:57     ` Jan Beulich
2016-04-07  3:49 ` [PATCH v6 17/24] build_id: Provide ld-embedded build-ids Konrad Rzeszutek Wilk
2016-04-08 15:39   ` Julien Grall
2016-04-08 18:07   ` Andrew Cooper
2016-04-08 19:34     ` Konrad Rzeszutek Wilk
2016-04-07  3:49 ` [PATCH v6 18/24] HYPERCALL_version_op: Add VERSION_build_id to retrieve build-id Konrad Rzeszutek Wilk
2016-04-08 18:07   ` Andrew Cooper
2016-04-07  3:49 ` [PATCH v6 19/24] libxl: info: Display build_id of the hypervisor using XEN_VERSION_build_id Konrad Rzeszutek Wilk
2016-04-07  3:49 ` [PATCH v6 20/24] xsplice: Print build_id in keyhandler and on bootup Konrad Rzeszutek Wilk
2016-04-08 18:12   ` Andrew Cooper
2016-04-07  3:49 ` [PATCH v6 21/24] xsplice: Stacking build-id dependency checking Konrad Rzeszutek Wilk
2016-04-08 18:19   ` Andrew Cooper
2016-04-09  1:43     ` Konrad Rzeszutek Wilk
2016-04-07  3:49 ` [PATCH v6 22/24] xsplice/xen_replace_world: Test-case for XSPLICE_ACTION_REPLACE Konrad Rzeszutek Wilk
2016-04-08 18:20   ` Andrew Cooper
2016-04-07  3:49 ` [PATCH v6 23/24] xsplice: Prevent duplicate payloads from being loaded Konrad Rzeszutek Wilk
2016-04-07 16:36   ` Ian Jackson
2016-04-08 18:21   ` Andrew Cooper
2016-04-07  3:49 ` [PATCH v6 24/24] MAINTAINERS/xsplice: Add myself and Ross as the maintainers Konrad Rzeszutek Wilk
2016-04-08 18:21   ` Andrew Cooper

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