[Xen-changelog] [xen staging] argo: Introduce the Kconfig option to govern inclusion of Argo

[patchbot@xxxxxxx]

commit 6afdd57002dc1c1d70adbb90043b44b8dfec7ccc
Author:     Christopher Clark <christopher.w.clark@xxxxxxxxx>
AuthorDate: Wed Feb 6 09:55:00 2019 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Thu Feb 7 14:18:21 2019 +0100

    argo: Introduce the Kconfig option to govern inclusion of Argo
    
    Defines CONFIG_ARGO when enabled. Default: disabled.
    
    When the Kconfig option is enabled, the Argo hypercall implementation
    will be included, allowing use of the hypervisor-mediated interdomain
    communication mechanism.
    
    Argo is implemented for x86 and ARM hardware platforms.
    
    Availability of the option depends on EXPERT and Argo is currently an
    experimental feature.
    
    Signed-off-by: Christopher Clark <christopher.clark6@xxxxxxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
    Release-acked-by: Juergen Gross <jgross@xxxxxxxx>
---
 xen/common/Kconfig | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/xen/common/Kconfig b/xen/common/Kconfig
index a79cd40441..04384628bb 100644
--- a/xen/common/Kconfig
+++ b/xen/common/Kconfig
@@ -202,6 +202,25 @@ config LATE_HWDOM
 
          If unsure, say N.
 
+config ARGO
+       bool "Argo: hypervisor-mediated interdomain communication" if EXPERT = 
"y"
+       ---help---
+         Enables a hypercall for domains to ask the hypervisor to perform
+         data transfer of messages between domains.
+
+         This allows communication channels to be established that do not
+         require any shared memory between domains; the hypervisor is the
+         entity that each domain interacts with. The hypervisor is able to
+         enforce Mandatory Access Control policy over the communication.
+
+         If XSM_FLASK is enabled, XSM policy can govern which domains may
+         communicate via the Argo system.
+
+         This feature does nothing if the "argo" boot parameter is not present.
+         Argo is disabled at runtime by default.
+
+         If unsure, say N.
+
 menu "Schedulers"
        visible if EXPERT = "y"
 
--
generated by git-patchbot for /home/xen/git/xen.git#staging

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