Re: [PATCH 2/2] xen: cleanup unrealized flash devices

[Anthony PERARD]

On Wed, Jun 24, 2020 at 01:18:41PM +0100, Paul Durrant wrote:
> From: Paul Durrant <pdurrant@amazon.com>
> 
> The generic pc_machine_initfn() calls pc_system_flash_create() which creates
> 'system.flash0' and 'system.flash1' devices. These devices are then realized
> by pc_system_flash_map() which is called from pc_system_firmware_init() which
> itself is called via pc_memory_init(). The latter however is not called when
> xen_enable() is true and hence the following assertion fails:
> 
> qemu-system-i386: hw/core/qdev.c:439: qdev_assert_realized_properly:
> Assertion `dev->realized' failed
> 
> These flash devices are unneeded when using Xen so this patch avoids the
> assertion by simply removing them using pc_system_flash_cleanup_unused().
> 
> Reported-by: Jason Andryuk <jandryuk@gmail.com>
> Fixes: ebc29e1beab0 ("pc: Support firmware configuration with -blockdev")
> Signed-off-by: Paul Durrant <pdurrant@amazon.com>
> Tested-by: Jason Andryuk <jandryuk@gmail.com>

Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>

I think I would add:

Fixes: dfe8c79c4468 ("qdev: Assert onboard devices all get realized properly")

as this is the first commit where the unrealized flash devices are an
issue.

-- 
Anthony PERARD