From: David Gibson <david@gibson.dropbear.id.au>
To: Greg Kurz <groug@kaod.org>
Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org,
"Cédric Le Goater" <clg@kaod.org>
Subject: Re: [Qemu-devel] [PATCH 2/3] spapr/pci: Free MSIs during reset
Date: Sun, 28 Jul 2019 17:06:39 +1000 [thread overview]
Message-ID: <20190728070639.GD5110@umbus> (raw)
In-Reply-To: <156415228410.1064338.4486161194061636096.stgit@bahia.lan>
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On Fri, Jul 26, 2019 at 04:44:44PM +0200, Greg Kurz wrote:
> When the machine is reset, the MSI bitmap is cleared but the allocated
> MSIs are not freed. Some operating systems, such as AIX, can detect the
> previous configuration and assert.
>
> Empty the MSI cache, this performs the needed cleanup.
>
> Signed-off-by: Greg Kurz <groug@kaod.org>
Applied to ppc-for-4.2, thanks.
> ---
> hw/ppc/spapr_pci.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
> index bc22568bfa71..e45507bf2b53 100644
> --- a/hw/ppc/spapr_pci.c
> +++ b/hw/ppc/spapr_pci.c
> @@ -2078,6 +2078,8 @@ static void spapr_phb_reset(DeviceState *qdev)
> if (spapr_phb_eeh_available(SPAPR_PCI_HOST_BRIDGE(qdev))) {
> spapr_phb_vfio_reset(qdev);
> }
> +
> + g_hash_table_remove_all(sphb->msi);
> }
>
> static Property spapr_phb_properties[] = {
>
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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next prev parent reply other threads:[~2019-07-28 7:08 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-26 14:44 [Qemu-devel] [PATCH 0/3] spapr/pci: Improve MSI tracking Greg Kurz
2019-07-26 14:44 ` [Qemu-devel] [PATCH 1/3] spapr/pci: Consolidate de-allocation of MSIs Greg Kurz
2019-07-26 14:56 ` Cédric Le Goater
2019-07-28 1:54 ` David Gibson
2019-07-26 14:44 ` [Qemu-devel] [PATCH 2/3] spapr/pci: Free MSIs during reset Greg Kurz
2019-07-26 14:56 ` Cédric Le Goater
2019-07-26 16:17 ` Philippe Mathieu-Daudé
2019-07-26 17:04 ` Greg Kurz
2019-07-28 7:06 ` David Gibson [this message]
2019-07-26 14:44 ` [Qemu-devel] [PATCH 3/3] spapr/irq: Drop spapr_irq_msi_reset() Greg Kurz
2019-07-26 15:01 ` Cédric Le Goater
2019-07-26 15:06 ` Greg Kurz
2019-07-28 7:07 ` David Gibson
2019-07-28 1:51 ` [Qemu-devel] [PATCH 0/3] spapr/pci: Improve MSI tracking David Gibson
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