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[PATCH v2.1 16/12] xen/trace: Restrict CONFIG_TRACEBUFFER to x86 PV
- To: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Mon, 20 Sep 2021 20:40:33 +0100
- Authentication-results: esa3.hc3370-68.iphmx.com; dkim=none (message not signed) header.i=none
- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
- Delivery-date: Mon, 20 Sep 2021 19:41:06 +0000
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- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
The mapping interface can only be used by x86 PV guests.
This can and should be fixed by changing to an acquire_resource() based
interface, which is compatbile with x86 PVH and ARM dom0's, but until this
happens, don't give the impression of this feature being useable elsewhere.
Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
CC: Jan Beulich <JBeulich@xxxxxxxx>
CC: Roger Pau Monné <roger.pau@xxxxxxxxxx>
CC: Wei Liu <wl@xxxxxxx>
CC: Stefano Stabellini <sstabellini@xxxxxxxxxx>
CC: Julien Grall <julien@xxxxxxx>
CC: Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
---
xen/common/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/xen/common/Kconfig b/xen/common/Kconfig
index db687b1785e7..6b6f7139e6f0 100644
--- a/xen/common/Kconfig
+++ b/xen/common/Kconfig
@@ -429,6 +429,7 @@ config DTB_FILE
config TRACEBUFFER
bool "Enable tracing infrastructure" if EXPERT
+ depends on PV
default y
---help---
Enable tracing infrastructure and pre-defined tracepoints within Xen.
--
2.11.0
|
