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From: Ian Campbell <ian.campbell@citrix.com>
To: vijay.kilari@gmail.com
Cc: stefano.stabellini@eu.citrix.com,
	Prasun.Kapoor@caviumnetworks.com,
	vijaya.kumar@caviumnetworks.com, tim@xen.org,
	xen-devel@lists.xen.org, julien.grall@citrix.com,
	stefano.stabellini@citrix.com, manish.jaggi@caviumnetworks.com
Subject: Re: [PATCH v4 09/17] xen/arm: ITS: Add GITS registers emulation
Date: Fri, 10 Jul 2015 15:56:54 +0100	[thread overview]
Message-ID: <1436540214.10074.73.camel@citrix.com> (raw)
In-Reply-To: <1436514172-3263-10-git-send-email-vijay.kilari@gmail.com>

On Fri, 2015-07-10 at 13:12 +0530, vijay.kilari@gmail.com wrote:
> +    case GITS_CWRITER:
> +        if ( dabt.size == DABT_BYTE ) goto bad_width;
> +        /* XXX: Validate val */
> +        vits_spin_lock(vits);
> +        vits->cmd_write = *r & 0xfffe0;
> +        if ( !(vits->ctrl & GITS_CTLR_ENABLE) )
> +            return 1;

You are returning with the lock held here.

I suggest
        if ( vits->ctrl & GITS_CTLR_ENABLE )
            ret = vits_its_process_cmd(...)
        else
            return 1;
        unlock
        return ret;

Ian.

  reply	other threads:[~2015-07-10 14:56 UTC|newest]

Thread overview: 113+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-10  7:42 [PATCH v4 00/17] Add ITS support vijay.kilari
2015-07-10  7:42 ` [PATCH v4 01/17] xen/arm: Add bitmap_find_next_zero_area helper function vijay.kilari
2015-07-10  9:01   ` Jan Beulich
2015-07-10  9:28     ` Vijay Kilari
2015-07-10  9:30       ` Vijay Kilari
2015-07-10  9:45     ` Vijay Kilari
2015-07-10 10:07       ` Jan Beulich
2015-07-10  7:42 ` [PATCH v4 02/17] xen: Add log2 functionality vijay.kilari
2015-07-10  7:42 ` [PATCH v4 03/17] xen/arm: ITS: Port ITS driver to Xen vijay.kilari
2015-07-10 13:01   ` Ian Campbell
2015-07-15 10:23   ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 04/17] xen/arm: ITS: Add helper functions to manage its_devices vijay.kilari
2015-07-10 13:05   ` Ian Campbell
2015-07-15 10:37   ` Julien Grall
2015-07-15 14:21     ` Vijay Kilari
2015-07-15 14:28       ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 05/17] xen/arm: ITS: implement hw_irq_controller for LPIs vijay.kilari
2015-07-10 13:46   ` Ian Campbell
2015-07-11 14:40     ` Vijay Kilari
2015-07-11 18:08       ` Julien Grall
2015-07-13  9:17       ` Ian Campbell
2015-07-13 21:18   ` Julien Grall
2015-07-15  7:16     ` Vijay Kilari
2015-07-15  8:26       ` Julien Grall
2015-07-15  9:32         ` Ian Campbell
2015-07-15  9:49           ` Julien Grall
2015-07-15 10:01             ` Ian Campbell
2015-07-15 14:15           ` Vijay Kilari
2015-07-15 14:22             ` Julien Grall
2015-07-15 14:28             ` Ian Campbell
2015-07-15 17:01               ` Vijay Kilari
2015-07-16 14:49                 ` Ian Campbell
2015-07-16 15:21                   ` Marc Zyngier
2015-07-16 16:18                     ` Ian Campbell
2015-07-16 16:27                       ` Marc Zyngier
2015-07-16 16:37                         ` Ian Campbell
2015-07-18 10:13           ` Julien Grall
2015-07-20 11:52             ` Ian Campbell
2015-07-20 12:22             ` Ian Campbell
2015-07-15 18:19   ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 06/17] xen/arm: ITS: Add virtual ITS driver vijay.kilari
2015-07-10 13:54   ` Ian Campbell
2015-07-11 14:48     ` Vijay Kilari
2015-07-13  9:27       ` Ian Campbell
2015-07-10 14:15   ` Ian Campbell
2015-07-11 14:48     ` Vijay Kilari
2015-07-13  9:25       ` Ian Campbell
2015-07-15 12:17   ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 07/17] xen/arm: ITS: Add virtual ITS commands support vijay.kilari
2015-07-10 14:35   ` Ian Campbell
2015-07-11 14:49     ` Vijay Kilari
2015-07-13  9:22       ` Ian Campbell
2015-07-13 11:15         ` Vijay Kilari
2015-07-13 11:37           ` Ian Campbell
2015-07-17 15:01             ` Vijay Kilari
2015-07-15 13:02     ` Julien Grall
2015-07-15 13:56       ` Ian Campbell
2015-07-15 12:57   ` Julien Grall
2015-07-17 14:12     ` Vijay Kilari
2015-07-17 15:15       ` Julien Grall
2015-07-17 15:34         ` Ian Campbell
2015-07-17 15:44           ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 08/17] xen/arm: ITS: Add APIs to add and assign device vijay.kilari
2015-07-10 14:52   ` Ian Campbell
2015-07-15 13:14     ` Julien Grall
2015-07-16 13:40       ` Vijay Kilari
2015-07-16 14:38         ` Julien Grall
2015-07-15 14:15   ` Julien Grall
2015-07-18  9:44     ` Vijay Kilari
2015-07-18 10:06       ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 09/17] xen/arm: ITS: Add GITS registers emulation vijay.kilari
2015-07-10 14:56   ` Ian Campbell [this message]
2015-07-15 16:13   ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 10/17] xen/arm: ITS: Enable physical and virtual ITS driver compilation vijay.kilari
2015-07-15 16:16   ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 11/17] xen/arm: ITS: Add GICR register emulation vijay.kilari
2015-07-10 15:10   ` Ian Campbell
2015-07-11 18:25     ` Julien Grall
2015-07-13  9:28       ` Ian Campbell
2015-07-13  9:53         ` Ian Campbell
2015-07-13 16:53   ` Stefano Stabellini
2015-07-15 17:32   ` Julien Grall
2015-07-16 14:15     ` Vijay Kilari
2015-07-16 14:41       ` Julien Grall
2015-07-16 14:46         ` Vijay Kilari
2015-07-16 14:58           ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 12/17] xen/arm: ITS: Initialize LPI irq descriptors and route vijay.kilari
2015-07-10 15:30   ` Ian Campbell
2015-07-20 13:07     ` Vijay Kilari
2015-07-20 13:25       ` Julien Grall
2015-07-22 13:31     ` Vijay Kilari
2015-07-22 13:39       ` Julien Grall
2015-07-22 14:17         ` Julien Grall
2015-07-13 17:03   ` Stefano Stabellini
2015-07-13 17:13   ` Stefano Stabellini
2015-07-13 17:36     ` Julien Grall
2015-07-15 18:13   ` Julien Grall
2015-07-16  8:06     ` Julien Grall
2015-07-16  8:37   ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 13/17] xen/arm: ITS: Initialize physical ITS vijay.kilari
2015-07-13 17:06   ` Stefano Stabellini
2015-07-10  7:42 ` [PATCH v4 14/17] xen/arm: ITS: Add domain specific ITS initialization vijay.kilari
2015-07-10 15:41   ` Ian Campbell
2015-07-15 17:41   ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 15/17] xen/arm: ITS: Map ITS translation space vijay.kilari
2015-07-10 15:43   ` Ian Campbell
2015-07-15  9:01   ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 16/17] xen/arm: ITS: Generate ITS node for Dom0 vijay.kilari
2015-07-13 16:32   ` Stefano Stabellini
2015-07-13 17:31     ` Julien Grall
2015-07-13 17:36       ` Stefano Stabellini
2015-07-10  7:42 ` [PATCH v4 17/17] xen/arm: ITS: Add pci devices in ThunderX vijay.kilari
2015-07-10 15:45   ` Ian Campbell

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