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authorLinus Torvalds <torvalds@linux-foundation.org>2014-01-20 15:40:44 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-20 15:40:44 -0800
commit82b51734b4f228c76b6064b6e899d9d3d4c17c1a (patch)
tree0f8735944ab146713dba402261b4c7cc5629d02f /arch/arm
parent15c81026204da897a05424c79263aea861a782cc (diff)
parent883c057367014d20a14b5054e4eb0d81ce3bea5c (diff)
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull ARM64 updates from Catalin Marinas: - CPU suspend support on top of PSCI (firmware Power State Coordination Interface) - jump label support - CMA can now be enabled on arm64 - HWCAP bits for crypto and CRC32 extensions - optimised percpu using tpidr_el1 register - code cleanup * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (42 commits) arm64: fix typo in entry.S arm64: kernel: restore HW breakpoint registers in cpu_suspend jump_label: use defined macros instead of hard-coding for better readability arm64, jump label: optimize jump label implementation arm64, jump label: detect %c support for ARM64 arm64: introduce aarch64_insn_gen_{nop|branch_imm}() helper functions arm64: move encode_insn_immediate() from module.c to insn.c arm64: introduce interfaces to hotpatch kernel and module code arm64: introduce basic aarch64 instruction decoding helpers arm64: dts: Reduce size of virtio block device for foundation model arm64: Remove unused __data_loc variable arm64: Enable CMA arm64: Warn on NULL device structure for dma APIs arm64: Add hwcaps for crypto and CRC32 extensions. arm64: drop redundant macros from read_cpuid() arm64: Remove outdated comment arm64: cmpxchg: update macros to prevent warnings arm64: support single-step and breakpoint handler hooks ARM64: fix framepointer check in unwind_frame ARM64: check stack pointer in get_wchan ...
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/kvm/arm.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index 2a700e00528d..b18165ca1d38 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -17,6 +17,7 @@
*/
#include <linux/cpu.h>
+#include <linux/cpu_pm.h>
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/kvm_host.h>
@@ -853,6 +854,33 @@ static struct notifier_block hyp_init_cpu_nb = {
.notifier_call = hyp_init_cpu_notify,
};
+#ifdef CONFIG_CPU_PM
+static int hyp_init_cpu_pm_notifier(struct notifier_block *self,
+ unsigned long cmd,
+ void *v)
+{
+ if (cmd == CPU_PM_EXIT) {
+ cpu_init_hyp_mode(NULL);
+ return NOTIFY_OK;
+ }
+
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block hyp_init_cpu_pm_nb = {
+ .notifier_call = hyp_init_cpu_pm_notifier,
+};
+
+static void __init hyp_cpu_pm_init(void)
+{
+ cpu_pm_register_notifier(&hyp_init_cpu_pm_nb);
+}
+#else
+static inline void hyp_cpu_pm_init(void)
+{
+}
+#endif
+
/**
* Inits Hyp-mode on all online CPUs
*/
@@ -1013,6 +1041,8 @@ int kvm_arch_init(void *opaque)
goto out_err;
}
+ hyp_cpu_pm_init();
+
kvm_coproc_table_init();
return 0;
out_err: