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From: David Gibson <david@gibson.dropbear.id.au>
To: David Hildenbrand <david@redhat.com>
Cc: qemu-devel@nongnu.org, qemu-ppc@nongnu.org,
	Eduardo Habkost <ehabkost@redhat.com>,
	Igor Mammedov <imammedo@redhat.com>,
	"Michael S . Tsirkin" <mst@redhat.com>,
	Marcel Apfelbaum <marcel.apfelbaum@gmail.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Richard Henderson <rth@twiddle.net>,
	Xiao Guangrong <xiaoguangrong.eric@gmail.com>,
	Alexander Graf <agraf@suse.de>
Subject: Re: [Qemu-devel] [PATCH v1 06/11] pc-dimm: don't allow to access "size" before the device was realized
Date: Tue, 12 Jun 2018 11:08:57 +1000	[thread overview]
Message-ID: <20180612010857.GO2737@umbus.fritz.box> (raw)
In-Reply-To: <20180611121655.19616-7-david@redhat.com>

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On Mon, Jun 11, 2018 at 02:16:50PM +0200, David Hildenbrand wrote:
> "size" should not be queried before the device was realized. Let' make
> that explicit.
> 
> Signed-off-by: David Hildenbrand <david@redhat.com>

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

> ---
>  hw/mem/pc-dimm.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c
> index 86fbcf2d0c..5294734529 100644
> --- a/hw/mem/pc-dimm.c
> +++ b/hw/mem/pc-dimm.c
> @@ -166,6 +166,12 @@ static void pc_dimm_get_size(Object *obj, Visitor *v, const char *name,
>      PCDIMMDevice *dimm = PC_DIMM(obj);
>      PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(obj);
>  
> +    if (!DEVICE(obj)->realized) {
> +        error_setg(errp, "Property \"%s\" not accessible before realized",
> +                   name);
> +        return;
> +    }
> +
>      mr = ddc->get_memory_region(dimm, errp);
>      if (!mr) {
>          return;

-- 
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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  reply	other threads:[~2018-06-12  1:47 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-11 12:16 [Qemu-devel] [PATCH v1 00/11] pc-dimm: next bunch of cleanups David Hildenbrand
2018-06-11 12:16 ` [Qemu-devel] [PATCH v1 01/11] pc-dimm: remove leftover "struct pc_dimms_capacity" David Hildenbrand
2018-06-12  0:21   ` David Gibson
2018-06-13  9:23   ` Igor Mammedov
2018-06-11 12:16 ` [Qemu-devel] [PATCH v1 02/11] nvdimm: no need to overwrite get_vmstate_memory_region() David Hildenbrand
2018-06-12  0:22   ` David Gibson
2018-06-13  9:39   ` Igor Mammedov
2018-06-11 12:16 ` [Qemu-devel] [PATCH v1 03/11] pc: factor out pc-dimm checks into pc_dimm_pre_plug() David Hildenbrand
2018-06-12  0:28   ` David Gibson
2018-06-13 10:07   ` Igor Mammedov
2018-06-11 12:16 ` [Qemu-devel] [PATCH v1 04/11] hostmem: drop error variable from host_memory_backend_get_memory() David Hildenbrand
2018-06-12  0:49   ` David Gibson
2018-06-13 10:13   ` Igor Mammedov
2018-06-11 12:16 ` [Qemu-devel] [PATCH v1 05/11] spapr: move memory hotplug size check into plug code David Hildenbrand
2018-06-12  1:02   ` David Gibson
2018-06-13 11:01   ` Igor Mammedov
2018-06-13 11:05     ` David Hildenbrand
2018-06-13 13:57       ` Igor Mammedov
2018-06-14  7:10         ` David Hildenbrand
2018-06-11 12:16 ` [Qemu-devel] [PATCH v1 06/11] pc-dimm: don't allow to access "size" before the device was realized David Hildenbrand
2018-06-12  1:08   ` David Gibson [this message]
2018-06-13 12:56   ` Igor Mammedov
2018-06-13 14:03     ` David Hildenbrand
2018-06-13 21:33       ` Eduardo Habkost
2018-06-14 13:02         ` Igor Mammedov
2018-06-14 13:24       ` Igor Mammedov
2018-06-14 14:10         ` David Hildenbrand
2018-06-15  9:16           ` Igor Mammedov
2018-06-15  9:25             ` David Hildenbrand
2018-06-15 10:06               ` Igor Mammedov
2018-06-11 12:16 ` [Qemu-devel] [PATCH v1 07/11] pc-dimm: get_memory_region() can never fail David Hildenbrand
2018-06-12  1:10   ` David Gibson
2018-06-13 13:03   ` Igor Mammedov
2018-06-13 14:07     ` David Hildenbrand
2018-06-13 14:50       ` David Hildenbrand
2018-06-14 15:00         ` Igor Mammedov
2018-06-14 15:11           ` David Hildenbrand
2018-06-15  9:59             ` Igor Mammedov
2018-06-15 10:29               ` David Hildenbrand
2018-06-11 12:16 ` [Qemu-devel] [PATCH v1 08/11] pc-dimm: get_memory_region() will never return a NULL pointer David Hildenbrand
2018-06-12  1:12   ` David Gibson
2018-06-11 12:16 ` [Qemu-devel] [PATCH v1 09/11] pc-dimm: remove pc_dimm_get_vmstate_memory_region() David Hildenbrand
2018-06-12  1:29   ` David Gibson
2018-06-11 12:16 ` [Qemu-devel] [PATCH v1 10/11] pc-dimm: introduce and use pc_dimm_memory_pre_plug() David Hildenbrand
2018-06-12  1:48   ` David Gibson
2018-06-13 13:10   ` Igor Mammedov
2018-06-13 14:15     ` David Hildenbrand
2018-06-15  9:34       ` Igor Mammedov
2018-06-15  9:48         ` David Hildenbrand
2018-06-15 10:01           ` Igor Mammedov
2018-06-11 12:16 ` [Qemu-devel] [PATCH v1 11/11] pc-dimm: assign and verify the "slot" property during pre_plug David Hildenbrand
2018-06-12  2:02   ` David Gibson
2018-06-13 13:34 ` [Qemu-devel] [PATCH v1 00/11] pc-dimm: next bunch of cleanups Igor Mammedov
2018-06-13 14:11   ` David Hildenbrand
2018-06-15 10:59     ` David Hildenbrand

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