Merge tag 'omap-for-v3.11/fixes-for-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Omap fixes and minor defconfig updates that would be good to
get in before -rc1.

* tag 'omap-for-v3.11/fixes-for-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: omap2plus_defconfig: Enable appended DTB support
  ARM: OMAP2+: Enable TI_EDMA in omap2plus_defconfig
  ARM: OMAP2+: omap2plus_defconfig: enable DRA752 thermal support by default
  ARM: OMAP2+: omap2plus_defconfig: enable TI bandgap driver
  ARM: OMAP2+: devices: remove duplicated include from devices.c
  ARM: OMAP3: igep0020: Set DSS pins in correct mux mode.
  ARM: OMAP2+: N900: enable N900-specific drivers even if device tree is enabled
  ARM: OMAP2+: Cocci spatch "ptr_ret.spatch"
  ARM: OMAP2+: Remove obsolete Makefile line
  ARM: OMAP5: Enable Cortex A15 errata 798181
  ARM: scu: provide inline dummy functions when SCU is not present
  ARM: OMAP4: sleep: build OMAP4 specific functions only for OMAP4
  ARM: OMAP2+: timer: initialize before using oh_name

Signed-off-by: Olof Johansson <olof@lixom.net>

Add/move/change conflicts in arch/arm/mach-omap2/Kconfig resolved.

1 files changed, 124 insertions, 0 deletions

diff --git a/arch/arm64/kvm/handle_exit.c b/arch/arm64/kvm/handle_exit.c
new file mode 100644
index 000000000000..9beaca033437
--- /dev/null
+++ b/arch/arm64/kvm/handle_exit.c
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2012,2013 - ARM Ltd
+ * Author: Marc Zyngier <marc.zyngier@arm.com>
+ *
+ * Derived from arch/arm/kvm/handle_exit.c:
+ * Copyright (C) 2012 - Virtual Open Systems and Columbia University
+ * Author: Christoffer Dall <c.dall@virtualopensystems.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/kvm.h>
+#include <linux/kvm_host.h>
+#include <asm/kvm_emulate.h>
+#include <asm/kvm_coproc.h>
+#include <asm/kvm_mmu.h>
+#include <asm/kvm_psci.h>
+
+typedef int (*exit_handle_fn)(struct kvm_vcpu *, struct kvm_run *);
+
+static int handle_hvc(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+	if (kvm_psci_call(vcpu))
+		return 1;
+
+	kvm_inject_undefined(vcpu);
+	return 1;
+}
+
+static int handle_smc(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+	if (kvm_psci_call(vcpu))
+		return 1;
+
+	kvm_inject_undefined(vcpu);
+	return 1;
+}
+
+/**
+ * kvm_handle_wfi - handle a wait-for-interrupts instruction executed by a guest
+ * @vcpu:	the vcpu pointer
+ *
+ * Simply call kvm_vcpu_block(), which will halt execution of
+ * world-switches and schedule other host processes until there is an
+ * incoming IRQ or FIQ to the VM.
+ */
+static int kvm_handle_wfi(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+	kvm_vcpu_block(vcpu);
+	return 1;
+}
+
+static exit_handle_fn arm_exit_handlers[] = {
+	[ESR_EL2_EC_WFI]	= kvm_handle_wfi,
+	[ESR_EL2_EC_CP15_32]	= kvm_handle_cp15_32,
+	[ESR_EL2_EC_CP15_64]	= kvm_handle_cp15_64,
+	[ESR_EL2_EC_CP14_MR]	= kvm_handle_cp14_access,
+	[ESR_EL2_EC_CP14_LS]	= kvm_handle_cp14_load_store,
+	[ESR_EL2_EC_CP14_64]	= kvm_handle_cp14_access,
+	[ESR_EL2_EC_HVC32]	= handle_hvc,
+	[ESR_EL2_EC_SMC32]	= handle_smc,
+	[ESR_EL2_EC_HVC64]	= handle_hvc,
+	[ESR_EL2_EC_SMC64]	= handle_smc,
+	[ESR_EL2_EC_SYS64]	= kvm_handle_sys_reg,
+	[ESR_EL2_EC_IABT]	= kvm_handle_guest_abort,
+	[ESR_EL2_EC_DABT]	= kvm_handle_guest_abort,
+};
+
+static exit_handle_fn kvm_get_exit_handler(struct kvm_vcpu *vcpu)
+{
+	u8 hsr_ec = kvm_vcpu_trap_get_class(vcpu);
+
+	if (hsr_ec >= ARRAY_SIZE(arm_exit_handlers) ||
+	    !arm_exit_handlers[hsr_ec]) {
+		kvm_err("Unkown exception class: hsr: %#08x\n",
+			(unsigned int)kvm_vcpu_get_hsr(vcpu));
+		BUG();
+	}
+
+	return arm_exit_handlers[hsr_ec];
+}
+
+/*
+ * Return > 0 to return to guest, < 0 on error, 0 (and set exit_reason) on
+ * proper exit to userspace.
+ */
+int handle_exit(struct kvm_vcpu *vcpu, struct kvm_run *run,
+		       int exception_index)
+{
+	exit_handle_fn exit_handler;
+
+	switch (exception_index) {
+	case ARM_EXCEPTION_IRQ:
+		return 1;
+	case ARM_EXCEPTION_TRAP:
+		/*
+		 * See ARM ARM B1.14.1: "Hyp traps on instructions
+		 * that fail their condition code check"
+		 */
+		if (!kvm_condition_valid(vcpu)) {
+			kvm_skip_instr(vcpu, kvm_vcpu_trap_il_is32bit(vcpu));
+			return 1;
+		}
+
+		exit_handler = kvm_get_exit_handler(vcpu);
+
+		return exit_handler(vcpu, run);
+	default:
+		kvm_pr_unimpl("Unsupported exception type: %d",
+			      exception_index);
+		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		return 0;
+	}
+}