diff mbox series

[v7,11/11] drivers/char: add console=ehci as an alias for console=dbgp

Message ID 6832b5dd97a1cd09ea8060e64fe1e8c8310e4974.1663383053.git-series.marmarek@invisiblethingslab.com (mailing list archive)
State Superseded
Headers show
Series Add Xue - console over USB 3 Debug Capability | expand

Commit Message

Marek Marczykowski-Górecki Sept. 17, 2022, 2:51 a.m. UTC 
Make it consistent with console=xhci.

Suggested-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
---
 docs/misc/xen-command-line.pandoc | 4 ++--
 xen/drivers/char/serial.c         | 6 ++++++
 2 files changed, 8 insertions(+), 2 deletions(-)

Comments

Jan Beulich Sept. 19, 2022, 8:49 a.m. UTC | #1 
On 17.09.2022 04:51, Marek Marczykowski-Górecki wrote:
> Make it consistent with console=xhci.
> 
> Suggested-by: Jan Beulich <jbeulich@suse.com>
> Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>

Acked-by: Jan Beulich <jbeulich@suse.com>
diff mbox series

Patch

diff --git a/docs/misc/xen-command-line.pandoc b/docs/misc/xen-command-line.pandoc
index 1c755563c40d..74b519f0c5bd 100644
--- a/docs/misc/xen-command-line.pandoc
+++ b/docs/misc/xen-command-line.pandoc
@@ -409,7 +409,7 @@  The following are examples of correct specifications:
 Specify the size of the console ring buffer.
 
 ### console
-> `= List of [ vga | com1[H,L] | com2[H,L] | pv | dbgp | xhci | none ]`
+> `= List of [ vga | com1[H,L] | com2[H,L] | pv | dbgp | ehci | xhci | none ]`
 
 > Default: `console=com1,vga`
 
@@ -428,7 +428,7 @@  cleared.  This allows a single port to be shared by two subsystems
 `pv` indicates that Xen should use Xen's PV console. This option is
 only available when used together with `pv-in-pvh`.
 
-`dbgp` indicates that Xen should use a USB2 debug port.
+`dbgp` or `ehci` indicates that Xen should use a USB2 debug port.
 
 `xhci` indicates that Xen should use a USB3 debug port.
 
diff --git a/xen/drivers/char/serial.c b/xen/drivers/char/serial.c
index 9d9445039232..00efe69574f3 100644
--- a/xen/drivers/char/serial.c
+++ b/xen/drivers/char/serial.c
@@ -311,6 +311,12 @@  int __init serial_parse_handle(const char *conf)
         goto common;
     }
 
+    if ( !strncmp(conf, "ehci", 4) && (!conf[4] || conf[4] == ',') )
+    {
+        handle = SERHND_DBGP;
+        goto common;
+    }
+
     if ( !strncmp(conf, "xhci", 4) && (!conf[4] || conf[4] == ',') )
     {
         handle = SERHND_XHCI;