1 files changed, 0 insertions, 155 deletions

diff --git a/patches/jailhouse/jailhouse_0004.patch b/patches/jailhouse/jailhouse_0004.patch
deleted file mode 100644
index be612ff..0000000
--- a/patches/jailhouse/jailhouse_0004.patch
+++ /dev/null
@@ -1,155 +0,0 @@
-From 8ba0c10a0b7fd44efe2e17462bb39732498b6d9b Mon Sep 17 00:00:00 2001
-From: Jan Kiszka <jan.kiszka@siemens.com>
-Date: Sun, 11 Sep 2016 23:30:04 +0200
-Subject: [PATCH] jailhouse: Add simple debug console via the hypervisor
-
-Jailhouse allows explicitly configured cells to write character-wise
-messages to the hypervisor debug console. Make use of this for a
-platform-agnostic boot diagnosis channel, specifically for non-root
-cells. It also comes with earlycon support.
-
-Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
----
- drivers/virt/Kconfig            | 11 +++++
- drivers/virt/Makefile           |  1 +
- drivers/virt/jailhouse_dbgcon.c | 99 +++++++++++++++++++++++++++++++++++++++++
- 3 files changed, 111 insertions(+)
- create mode 100644 drivers/virt/jailhouse_dbgcon.c
-
-diff --git a/drivers/virt/Kconfig b/drivers/virt/Kconfig
-index 99ebdde..baf04bb 100644
---- a/drivers/virt/Kconfig
-+++ b/drivers/virt/Kconfig
-@@ -30,4 +30,15 @@ config FSL_HV_MANAGER
-           4) A kernel interface for receiving callbacks when a managed
-             partition shuts down.
- 
-+config JAILHOUSE_DBGCON
-+       tristate "Jailhouse console driver"
-+       depends on X86 || ARM || ARM64
-+       help
-+         The Jailhouse hypervisor provides a simple write-only console for
-+         debugging the bootstrap process of its cells. This driver registers
-+         a console with the kernel to make use of it.
-+
-+         Note that Jailhouse has to be configured to permit a cell the usage
-+         of the console interface.
-+
- endif
-diff --git a/drivers/virt/Makefile b/drivers/virt/Makefile
-index c47f04d..abd4baa 100644
---- a/drivers/virt/Makefile
-+++ b/drivers/virt/Makefile
-@@ -3,3 +3,4 @@
- #
- 
- obj-$(CONFIG_FSL_HV_MANAGER)   += fsl_hypervisor.o
-+obj-$(CONFIG_JAILHOUSE_DBGCON) += jailhouse_dbgcon.o
-diff --git a/drivers/virt/jailhouse_dbgcon.c b/drivers/virt/jailhouse_dbgcon.c
-new file mode 100644
-index 0000000..5a8a8fb
---- /dev/null
-+++ b/drivers/virt/jailhouse_dbgcon.c
-@@ -0,0 +1,99 @@
-+/*
-+ * Console driver for running over the Jailhouse partitioning hypervisor
-+ *
-+ * Copyright (c) Siemens AG, 2016
-+ *
-+ * Authors:
-+ *  Jan Kiszka <jan.kiszka@siemens.com>
-+ *
-+ * This work is licensed under the terms of the GNU GPL, version 2.  See
-+ * the COPYING file in the top-level directory.
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/console.h>
-+#include <linux/serial_core.h>
-+#ifdef CONFIG_X86
-+#include <asm/alternative.h>
-+#endif
-+#ifdef CONFIG_ARM
-+#include <asm/opcodes-virt.h>
-+#endif
-+
-+#define JAILHOUSE_HC_DEBUG_CONSOLE_PUTC                8
-+
-+static void hypervisor_putc(char c)
-+{
-+#if defined(CONFIG_X86)
-+       int result;
-+
-+       asm volatile(
-+               ALTERNATIVE(".byte 0x0f,0x01,0xc1", ".byte 0x0f,0x01,0xd9",
-+                           X86_FEATURE_VMMCALL)
-+               : "=a" (result)
-+               : "a" (JAILHOUSE_HC_DEBUG_CONSOLE_PUTC), "D" (c)
-+               : "memory");
-+#elif defined(CONFIG_ARM)
-+       register u32 num_res asm("r0") = JAILHOUSE_HC_DEBUG_CONSOLE_PUTC;
-+       register u32 arg1 asm("r1") = c;
-+
-+       asm volatile(
-+               __HVC(0x4a48)
-+               : "=r" (num_res)
-+               : "r" (num_res), "r" (arg1)
-+               : "memory");
-+#elif defined(CONFIG_ARM64)
-+       register u64 num_res asm("x0") = JAILHOUSE_HC_DEBUG_CONSOLE_PUTC;
-+       register u64 arg1 asm("x1") = c;
-+
-+       asm volatile(
-+               "hvc #0x4a48\n\t"
-+               : "=r" (num_res)
-+               : "r" (num_res), "r" (arg1)
-+               : "memory");
-+#endif
-+}
-+
-+static void jailhouse_dbgcon_write(struct console *con, const char *s,
-+                                  unsigned count)
-+{
-+       while (count > 0) {
-+               hypervisor_putc(*s);
-+               count--;
-+               s++;
-+       }
-+}
-+
-+static int __init early_jailhouse_dbgcon_setup(struct earlycon_device *device,
-+                                              const char *options)
-+{
-+       device->con->write = jailhouse_dbgcon_write;
-+       return 0;
-+}
-+
-+EARLYCON_DECLARE(jailhouse, early_jailhouse_dbgcon_setup);
-+
-+static struct console jailhouse_dbgcon = {
-+       .name = "jailhouse",
-+       .write = jailhouse_dbgcon_write,
-+       .flags = CON_PRINTBUFFER | CON_ANYTIME,
-+       .index = -1,
-+};
-+
-+static int __init jailhouse_dbgcon_init(void)
-+{
-+       register_console(&jailhouse_dbgcon);
-+       return 0;
-+}
-+
-+static void __exit jailhouse_dbgcon_exit(void)
-+{
-+       unregister_console(&jailhouse_dbgcon);
-+}
-+
-+module_init(jailhouse_dbgcon_init);
-+module_exit(jailhouse_dbgcon_exit);
-+
-+MODULE_LICENSE("GPL v2");
-+MODULE_DESCRIPTION("Jailhouse debug console driver");
-+MODULE_AUTHOR("Jan Kiszka <jan.kiszka@siemens.com>");
--- 
-2.1.4
-