* [PATCH v2] mini-os: add config item for printing via hypervisor
@ 2017-11-22 7:59 Juergen Gross
2018-02-12 10:59 ` [Minios-devel] " Juergen Gross
0 siblings, 1 reply; 2+ messages in thread
From: Juergen Gross @ 2017-11-22 7:59 UTC (permalink / raw)
To: minios-devel, xen-devel; +Cc: Juergen Gross, samuel.thibault, wei.liu2
Today Mini-OS will print all console output via the hypervisor, too.
Make this behavior configurable instead and default it to "off".
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
---
V2: keep comment (Samuel Thibault)
---
Config.mk | 4 ++++
arch/x86/testbuild/all-no | 1 +
arch/x86/testbuild/all-yes | 1 +
arch/x86/testbuild/newxen-yes | 1 +
console/console.c | 7 +------
5 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/Config.mk b/Config.mk
index 0baedd1..f6a2afa 100644
--- a/Config.mk
+++ b/Config.mk
@@ -180,6 +180,9 @@ CONFIG_XENBUS ?= y
CONFIG_XC ?=y
CONFIG_LWIP ?= $(lwip)
CONFIG_BALLOON ?= n
+# Setting CONFIG_USE_XEN_CONSOLE copies all print output to the Xen emergency
+# console apart of standard dom0 handled console.
+CONFIG_USE_XEN_CONSOLE ?= n
# Export config items as compiler directives
DEFINES-$(CONFIG_PARAVIRT) += -DCONFIG_PARAVIRT
@@ -197,6 +200,7 @@ DEFINES-$(CONFIG_FBFRONT) += -DCONFIG_FBFRONT
DEFINES-$(CONFIG_CONSFRONT) += -DCONFIG_CONSFRONT
DEFINES-$(CONFIG_XENBUS) += -DCONFIG_XENBUS
DEFINES-$(CONFIG_BALLOON) += -DCONFIG_BALLOON
+DEFINES-$(CONFIG_USE_XEN_CONSOLE) += -DCONFIG_USE_XEN_CONSOLE
DEFINES-y += -D__XEN_INTERFACE_VERSION__=$(XEN_INTERFACE_VERSION)
diff --git a/arch/x86/testbuild/all-no b/arch/x86/testbuild/all-no
index 78720c3..1c50bba 100644
--- a/arch/x86/testbuild/all-no
+++ b/arch/x86/testbuild/all-no
@@ -16,3 +16,4 @@ CONFIG_XENBUS = n
CONFIG_XC = n
CONFIG_LWIP = n
CONFIG_BALLOON = n
+CONFIG_USE_XEN_CONSOLE = n
diff --git a/arch/x86/testbuild/all-yes b/arch/x86/testbuild/all-yes
index 303c56b..8732e69 100644
--- a/arch/x86/testbuild/all-yes
+++ b/arch/x86/testbuild/all-yes
@@ -17,3 +17,4 @@ CONFIG_XC = y
# LWIP is special: it needs support from outside
CONFIG_LWIP = n
CONFIG_BALLOON = y
+CONFIG_USE_XEN_CONSOLE = y
diff --git a/arch/x86/testbuild/newxen-yes b/arch/x86/testbuild/newxen-yes
index 907a8a0..9c30c00 100644
--- a/arch/x86/testbuild/newxen-yes
+++ b/arch/x86/testbuild/newxen-yes
@@ -17,4 +17,5 @@ CONFIG_XC = y
# LWIP is special: it needs support from outside
CONFIG_LWIP = n
CONFIG_BALLOON = y
+CONFIG_USE_XEN_CONSOLE = y
XEN_INTERFACE_VERSION=__XEN_LATEST_INTERFACE_VERSION__
diff --git a/console/console.c b/console/console.c
index 2e04552..6a0b923 100644
--- a/console/console.c
+++ b/console/console.c
@@ -45,11 +45,6 @@
#include <xen/io/console.h>
-/* Copies all print output to the Xen emergency console apart
- of standard dom0 handled console */
-#define USE_XEN_CONSOLE
-
-
/* If console not initialised the printk will be sent to xen serial line
NOTE: you need to enable verbose in xen/Rules.mk for it to work. */
static int console_initialised = 0;
@@ -135,7 +130,7 @@ void print(int direct, const char *fmt, va_list args)
(void)HYPERVISOR_console_io(CONSOLEIO_write, strlen(buf), buf);
return;
} else {
-#ifndef USE_XEN_CONSOLE
+#ifndef CONFIG_USE_XEN_CONSOLE
if(!console_initialised)
#endif
(void)HYPERVISOR_console_io(CONSOLEIO_write, strlen(buf), buf);
--
2.12.3
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^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [Minios-devel] [PATCH v2] mini-os: add config item for printing via hypervisor
2017-11-22 7:59 [PATCH v2] mini-os: add config item for printing via hypervisor Juergen Gross
@ 2018-02-12 10:59 ` Juergen Gross
0 siblings, 0 replies; 2+ messages in thread
From: Juergen Gross @ 2018-02-12 10:59 UTC (permalink / raw)
To: minios-devel, xen-devel; +Cc: samuel.thibault, wei.liu2
On 22/11/17 08:59, Juergen Gross wrote:
> Today Mini-OS will print all console output via the hypervisor, too.
>
> Make this behavior configurable instead and default it to "off".
>
> Signed-off-by: Juergen Gross <jgross@suse.com>
> Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Still pending...
Juergen
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Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
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2017-11-22 7:59 [PATCH v2] mini-os: add config item for printing via hypervisor Juergen Gross
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