From aa024c2f35a07cc32e48c5f62a5807be01c09249 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Sun, 20 Jan 2013 18:28:13 -0500 Subject: KVM: ARM: Power State Coordination Interface implementation Implement the PSCI specification (ARM DEN 0022A) to control virtual CPUs being "powered" on or off. PSCI/KVM is detected using the KVM_CAP_ARM_PSCI capability. A virtual CPU can now be initialized in a "powered off" state, using the KVM_ARM_VCPU_POWER_OFF feature flag. The guest can use either SMC or HVC to execute a PSCI function. Reviewed-by: Will Deacon Signed-off-by: Marc Zyngier Signed-off-by: Christoffer Dall --- arch/arm/include/asm/kvm_host.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'arch/arm/include/asm/kvm_host.h') diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h index e65fc967a71d..98b4d1a72923 100644 --- a/arch/arm/include/asm/kvm_host.h +++ b/arch/arm/include/asm/kvm_host.h @@ -30,7 +30,7 @@ #define KVM_COALESCED_MMIO_PAGE_OFFSET 1 #define KVM_HAVE_ONE_REG -#define KVM_VCPU_MAX_FEATURES 0 +#define KVM_VCPU_MAX_FEATURES 1 /* We don't currently support large pages. */ #define KVM_HPAGE_GFN_SHIFT(x) 0 @@ -100,6 +100,9 @@ struct kvm_vcpu_arch { int last_pcpu; cpumask_t require_dcache_flush; + /* Don't run the guest on this vcpu */ + bool pause; + /* IO related fields */ struct kvm_decode mmio_decode; -- cgit v1.2.3-59-g8ed1b