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, 47 insertions, 0 deletions

diff --git a/meta-agl-jailhouse/recipes-kernel/linux/linux/0019-ivshmem-net-Switch-to-reset-state-on-each-net-stop-a.patch b/meta-agl-jailhouse/recipes-kernel/linux/linux/0019-ivshmem-net-Switch-to-reset-state-on-each-net-stop-a.patch
new file mode 100644
index 00000000..512bcaf2
--- /dev/null
+++ b/meta-agl-jailhouse/recipes-kernel/linux/linux/0019-ivshmem-net-Switch-to-reset-state-on-each-net-stop-a.patch
@@ -0,0 +1,47 @@
+From a16c80c305b2e11fe3efd0905bbe7db8388bf545 Mon Sep 17 00:00:00 2001
+From: Jan Kiszka <jan.kiszka@siemens.com>
+Date: Sun, 1 Jan 2017 15:43:37 +0100
+Subject: [PATCH 19/32] ivshmem-net: Switch to reset state on each net stop and
+ on driver removal
+
+Improves the state signaling to the remote side after ifconfig down and
+driver removal.
+
+Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
+---
+ drivers/net/ivshmem-net.c | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/net/ivshmem-net.c b/drivers/net/ivshmem-net.c
+index cff6aa0be71d..09484d652add 100644
+--- a/drivers/net/ivshmem-net.c
++++ b/drivers/net/ivshmem-net.c
+@@ -554,6 +554,8 @@ static void ivshm_net_do_stop(struct net_device *ndev)
+ {
+ 	struct ivshm_net *in = netdev_priv(ndev);
+ 
++	ivshm_net_set_state(in, IVSHM_NET_STATE_RESET);
++
+ 	if (!test_and_clear_bit(IVSHM_NET_FLAG_RUN, &in->flags))
+ 		return;
+ 
+@@ -593,7 +595,6 @@ static void ivshm_net_state_change(struct work_struct *work)
+ 		} else {
+ 			netif_carrier_off(ndev);
+ 			ivshm_net_do_stop(ndev);
+-			ivshm_net_set_state(in, IVSHM_NET_STATE_RESET);
+ 		}
+ 		break;
+ 	}
+@@ -899,6 +900,8 @@ static void ivshm_net_remove(struct pci_dev *pdev)
+ 	struct net_device *ndev = pci_get_drvdata(pdev);
+ 	struct ivshm_net *in = netdev_priv(ndev);
+ 
++	writel(IVSHM_NET_STATE_RESET, &in->ivshm_regs->lstate);
++
+ 	if (in->using_msix)  {
+ 		free_irq(in->msix.vector, ndev);
+ 		pci_disable_msix(pdev);
+-- 
+2.11.0
+