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Re: [Qemu-devel] [PATCH] qdev: Reset hotplugged devices
From: |
Markus Armbruster |
Subject: |
Re: [Qemu-devel] [PATCH] qdev: Reset hotplugged devices |
Date: |
Fri, 20 Aug 2010 11:00:53 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) |
Alex Williamson <address@hidden> writes:
> Several devices rely on their reset() function being called to
> initialize device state, e1000 and rtl8139 in particular. When
> the device is hot added, the reset doesn't occur, often leaving
> the device in an unusable state. Adding a call to reset() after
> init() for hotplugged devices puts the device in the expected
> state for the guest.
>
> Signed-off-by: Alex Williamson <address@hidden>
> ---
>
> 0.13 candidate?
>
> hw/qdev.c | 3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/hw/qdev.c b/hw/qdev.c
> index e99c73f..b156272 100644
> --- a/hw/qdev.c
> +++ b/hw/qdev.c
> @@ -278,6 +278,9 @@ int qdev_init(DeviceState *dev)
> qdev_free(dev);
> return rc;
> }
> + if (dev->hotplugged) {
> + qdev_reset(dev);
> + }
> qemu_register_reset(qdev_reset, dev);
> if (dev->info->vmsd) {
> vmstate_register_with_alias_id(dev, -1, dev->info->vmsd, dev,
qdev_reset() isn't necessary when !dev->hotplugged, because then
qemu_system_reset() will run shortly, which will call qdev_reset().
Correct?
- [Qemu-devel] [PATCH] qdev: Reset hotplugged devices, Alex Williamson, 2010/08/03
- [Qemu-devel] Re: [PATCH] qdev: Reset hotplugged devices, Glauber Costa, 2010/08/03
- Re: [Qemu-devel] [PATCH] qdev: Reset hotplugged devices,
Markus Armbruster <=
- Re: [Qemu-devel] [PATCH] qdev: Reset hotplugged devices, Alex Williamson, 2010/08/20
- Re: [Qemu-devel] [PATCH] qdev: Reset hotplugged devices, Markus Armbruster, 2010/08/20
- Re: [Qemu-devel] [PATCH] qdev: Reset hotplugged devices, Anthony Liguori, 2010/08/20
- Re: [Qemu-devel] [PATCH] qdev: Reset hotplugged devices, Markus Armbruster, 2010/08/20
- Re: [Qemu-devel] [PATCH] qdev: Reset hotplugged devices, Anthony Liguori, 2010/08/20
- Re: [Qemu-devel] [PATCH] qdev: Reset hotplugged devices, Alex Williamson, 2010/08/20
- Re: [Qemu-devel] [PATCH] qdev: Reset hotplugged devices, Markus Armbruster, 2010/08/21
- Re: [Qemu-devel] [PATCH] qdev: Reset hotplugged devices, Anthony Liguori, 2010/08/21
- [Qemu-devel] Re: [PATCH] qdev: Reset hotplugged devices, Paolo Bonzini, 2010/08/23
- [Qemu-devel] Re: [PATCH] qdev: Reset hotplugged devices, Anthony Liguori, 2010/08/23