Patchwork [1/2] xen: enable console and disk backend in HVM mode

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Submitter Stefano Stabellini
Date June 24, 2011, 2:54 p.m.
Message ID <1308927289-10474-1-git-send-email-stefano.stabellini@eu.citrix.com>
Download mbox | patch
Permalink /patch/101818/
State New
Headers show

Comments

Stefano Stabellini - June 24, 2011, 2:54 p.m.
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

Initialize the Xen console backend and the Xen disk backend even when
running in HVM mode so that PV on HVM drivers can connect to them.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
---
 xen-all.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
Alexander Graf - June 30, 2011, 3:09 p.m.
On 06/24/2011 04:54 PM, stefano.stabellini@eu.citrix.com wrote:
> From: Stefano Stabellini<stefano.stabellini@eu.citrix.com>
>
> Initialize the Xen console backend and the Xen disk backend even when
> running in HVM mode so that PV on HVM drivers can connect to them.

Thanks, applied to xen-next branch.

Alex

> Signed-off-by: Stefano Stabellini<stefano.stabellini@eu.citrix.com>
> ---
>   xen-all.c |    8 ++++++++
>   1 files changed, 8 insertions(+), 0 deletions(-)
>
> diff --git a/xen-all.c b/xen-all.c
> index b0b2f10..93fa2ee 100644
> --- a/xen-all.c
> +++ b/xen-all.c
> @@ -862,6 +862,14 @@ int xen_hvm_init(void)
>       cpu_register_phys_memory_client(&state->client);
>       state->log_for_dirtybit = NULL;
>
> +    /* Initialize backend core&  drivers */
> +    if (xen_be_init() != 0) {
> +        fprintf(stderr, "%s: xen backend core setup failed\n", __FUNCTION__);
> +        exit(1);
> +    }
> +    xen_be_register("console",&xen_console_ops);
> +    xen_be_register("qdisk",&xen_blkdev_ops);
> +
>       return 0;
>   }
>

Patch

diff --git a/xen-all.c b/xen-all.c
index b0b2f10..93fa2ee 100644
--- a/xen-all.c
+++ b/xen-all.c
@@ -862,6 +862,14 @@  int xen_hvm_init(void)
     cpu_register_phys_memory_client(&state->client);
     state->log_for_dirtybit = NULL;
 
+    /* Initialize backend core & drivers */
+    if (xen_be_init() != 0) {
+        fprintf(stderr, "%s: xen backend core setup failed\n", __FUNCTION__);
+        exit(1);
+    }
+    xen_be_register("console", &xen_console_ops);
+    xen_be_register("qdisk", &xen_blkdev_ops);
+
     return 0;
 }