From: Wei Chen <Wei.Chen@xxxxxxx>
These APIs are necessary for Unikraft. We have provided local CPU
interrupt functions already, so they can be wrapped in lcpu.c easily.
But we haven't implemented GIC libraries, so the APIs in intctrl.c
are TODO.
Signed-off-by: Wei Chen <Wei.Chen@xxxxxxx>
Reviewed-by: Simon Kuenzer <simon.kuenzer@xxxxxxxxx>
---
plat/kvm/Makefile.uk | 2 ++
plat/kvm/arm/intctrl.c | 54 ++++++++++++++++++++++++++++++++
plat/kvm/arm/lcpu.c | 70 ++++++++++++++++++++++++++++++++++++++++++
3 files changed, 126 insertions(+)
create mode 100644 plat/kvm/arm/intctrl.c
create mode 100644 plat/kvm/arm/lcpu.c
diff --git a/plat/kvm/Makefile.uk b/plat/kvm/Makefile.uk
index d2d687c..ba681f5 100644
--- a/plat/kvm/Makefile.uk
+++ b/plat/kvm/Makefile.uk
@@ -58,6 +58,8 @@ LIBKVMPLAT_SRCS-$(CONFIG_ARCH_ARM_64) +=
$(UK_PLAT_COMMON_BASE)/arm/cache64.S|co
LIBKVMPLAT_SRCS-$(CONFIG_ARCH_ARM_64) +=
$(UK_PLAT_COMMON_BASE)/arm/time.c|common
LIBKVMPLAT_SRCS-$(CONFIG_ARCH_ARM_64) += $(LIBKVMPLAT_BASE)/arm/entry64.S
LIBKVMPLAT_SRCS-$(CONFIG_ARCH_ARM_64) += $(LIBKVMPLAT_BASE)/arm/setup.c
+LIBKVMPLAT_SRCS-$(CONFIG_ARCH_ARM_64) += $(LIBKVMPLAT_BASE)/arm/lcpu.c
+LIBKVMPLAT_SRCS-$(CONFIG_ARCH_ARM_64) += $(LIBKVMPLAT_BASE)/arm/intctrl.c
endif
LIBKVMPLAT_SRCS-y += $(LIBKVMPLAT_BASE)/shutdown.c
diff --git a/plat/kvm/arm/intctrl.c b/plat/kvm/arm/intctrl.c
new file mode 100644
index 0000000..ac604a7
--- /dev/null
+++ b/plat/kvm/arm/intctrl.c
@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+/*
+ * Authors: Wei Chen <wei.chen@xxxxxxx>
+ *
+ * Copyright (c) 2018, Arm Ltd., All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * THIS HEADER MAY NOT BE EXTRACTED OR MODIFIED IN ANY WAY.
+ */
+#include <kvm/intctrl.h>
+
+void intctrl_init(void)
+{
+ // TO DO
+}
+
+void intctrl_ack_irq(unsigned int irq)
+{
+ // TO DO
+}
+
+void intctrl_mask_irq(unsigned int irq)
+{
+ // TO DO
+}
+
+void intctrl_clear_irq(unsigned int irq)
+{
+ // TO DO
+}
diff --git a/plat/kvm/arm/lcpu.c b/plat/kvm/arm/lcpu.c
new file mode 100644
index 0000000..6f15c3f
--- /dev/null
+++ b/plat/kvm/arm/lcpu.c
@@ -0,0 +1,70 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+/*
+ * Authors: Wei Chen <wei.chen@xxxxxxx>
+ *
+ * Copyright (c) 2018, Arm Ltd., All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * THIS HEADER MAY NOT BE EXTRACTED OR MODIFIED IN ANY WAY.
+ */
+#include <stdint.h>
+#include <uk/plat/lcpu.h>
+#include <arm/irq.h>
+
+void ukplat_lcpu_enable_irq(void)
+{
+ local_irq_enable();
+}
+
+void ukplat_lcpu_disable_irq(void)
+{
+ local_irq_disable();
+}
+
+unsigned long ukplat_lcpu_save_irqf(void)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ return flags;
+}
+
+void ukplat_lcpu_restore_irqf(unsigned long flags)
+{
+ local_irq_restore(flags);
+}
+
+int ukplat_lcpu_irqs_disabled(void)
+{
+ return irqs_disabled();
+}
+
+void ukplat_lcpu_irqs_handle_pending(void)
+{
+ // TODO
+}
