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Re: [Qemu-devel] [PATCH v2 2/2] xen-platform: Replace assert() with appr
From: |
Stefano Stabellini |
Subject: |
Re: [Qemu-devel] [PATCH v2 2/2] xen-platform: Replace assert() with appropriate error reporting |
Date: |
Mon, 26 Oct 2015 11:25:04 +0000 |
User-agent: |
Alpine 2.02 (DEB 1266 2009-07-14) |
On Wed, 21 Oct 2015, Eduardo Habkost wrote:
> Commit dbb7405d8caad0814ceddd568cb49f163a847561 made it possible to
> trigger an assert using "-device xen-platform". Replace it with
> appropriate error reporting.
>
> Before:
>
> $ qemu-system-x86_64 -device xen-platform
> qemu-system-x86_64: hw/i386/xen/xen_platform.c:391: xen_platform_initfn:
> Assertion `xen_enabled()' failed.
> Aborted (core dumped)
> $
>
> After:
>
> $ qemu-system-x86_64 -device xen-platform
> qemu-system-x86_64: -device xen-platform: xen-platform device requires the
> Xen accelerator
> $
>
> Signed-off-by: Eduardo Habkost <address@hidden>
Applied to my tree
> Changes v1 -> v2:*
> * Use error_setg() instead of error_report()
> * Suggested-by: Paolo Bonzini <address@hidden>
> ---
> hw/i386/xen/xen_platform.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/hw/i386/xen/xen_platform.c b/hw/i386/xen/xen_platform.c
> index 3dc68cb..de83f4e 100644
> --- a/hw/i386/xen/xen_platform.c
> +++ b/hw/i386/xen/xen_platform.c
> @@ -33,6 +33,7 @@
> #include "trace.h"
> #include "exec/address-spaces.h"
> #include "sysemu/block-backend.h"
> +#include "qemu/error-report.h"
>
> #include <xenguest.h>
>
> @@ -388,7 +389,10 @@ static void xen_platform_realize(PCIDevice *dev, Error
> **errp)
> uint8_t *pci_conf;
>
> /* Device will crash on reset if xen is not initialized */
> - assert(xen_enabled());
> + if (!xen_enabled()) {
> + error_setg(errp, "xen-platform device requires the Xen accelerator");
> + return;
> + }
>
> pci_conf = dev->config;
>
> --
> 2.1.0
>