[SeaBIOS] [PATCH v7 0/5] QEMU: Add capability to write back fw_cfg address to QEMU
Kevin O'Connor
kevin at koconnor.net
Tue Feb 21 15:38:33 CET 2017
On Mon, Feb 20, 2017 at 07:56:14PM -0800, ben at skyportsystems.com wrote:
> From: Ben Warren <ben at skyportsystems.com>
>
> This patch set adds the capability to write to QEMU across the fw_cfg DMA
> link. It adds a higher-level command to write the BIOS-allocated address of
> one fw_cfg file into an arbitrary point within another, writeable fw_cfg file
> across the above-mentioned link.
>
> The initial use case is for Windows VM
> Generation ID, where QEMU needs to change the contents of fw_cfg
> data at runtime, while still having BIOS allocate and manage the memory.
>
> The final corresponding QEMU patch can be found here:
> https://www.mail-archive.com/qemu-devel@nongnu.org/msg430490.html
Thanks. I made a minor change to patch 5 and committed this series.
-Kevin
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