Add layer to support Jailhouse hypervisorjellyfish_9.99.2jellyfish/9.99.29.99.2

Jailhouse is a partitioning hypervisor based on Linux. It is able to run
bare-metal applications or (adapted) operating systems besides Linux.
For this purpose, it configures CPU and device virtualization features
of the hardware platform in a way that none of these domains, called
"cells" here, can interfere with each other in an unacceptable way.

This layer adds the Jailhouse package into AGL and also appends the BSPs
to allow it to run. Currently, Raspberry Pi 4 and QEMU x86-64 targets
are supported.

To enable Jailhouse and include it in the image, the AGL feature
agl-jailhouse must be enabled.

Bug-AGL: SPEC-3507

Signed-off-by: Jakub Luzny <jakub@luzny.cz>
Change-Id: I0fbc0b5d931c85d6f22b0222da8c2b106c4115e1

1 files changed, 31 insertions, 0 deletions

diff --git a/meta-agl-jailhouse/recipes-kernel/linux/linux/0029-ivshmem-net-Fix-bogus-transition-to-RESET-state.patch b/meta-agl-jailhouse/recipes-kernel/linux/linux/0029-ivshmem-net-Fix-bogus-transition-to-RESET-state.patch
new file mode 100644
index 00000000..335c6bdb
--- /dev/null
+++ b/meta-agl-jailhouse/recipes-kernel/linux/linux/0029-ivshmem-net-Fix-bogus-transition-to-RESET-state.patch
@@ -0,0 +1,31 @@
+From 1a0998da61deead1dbb38393fedaefee69f59044 Mon Sep 17 00:00:00 2001
+From: Jan Kiszka <jan.kiszka@siemens.com>
+Date: Sun, 4 Mar 2018 13:16:04 +0100
+Subject: [PATCH 29/32] ivshmem-net: Fix bogus transition to RESET state
+
+If we are in READY but the remote is still in INIT, we so far fell back
+to RESET which caused the setup to get stuck. Fix this by only
+transitioning from READY/RUN to RESET in ivshm_net_state_change if the
+remote is in RESET as well.
+
+Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
+---
+ drivers/net/ivshmem-net.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/net/ivshmem-net.c b/drivers/net/ivshmem-net.c
+index 6fa7a6c81bf1..0c503194b4ec 100644
+--- a/drivers/net/ivshmem-net.c
++++ b/drivers/net/ivshmem-net.c
+@@ -598,7 +598,7 @@ static void ivshm_net_state_change(struct work_struct *work)
+ 		if (rstate >= IVSHM_NET_STATE_READY) {
+ 			netif_carrier_on(ndev);
+ 			ivshm_net_run(ndev);
+-		} else {
++		} else if (rstate == IVSHM_NET_STATE_RESET) {
+ 			netif_carrier_off(ndev);
+ 			ivshm_net_do_stop(ndev);
+ 		}
+-- 
+2.11.0
+