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[Qemu-devel] [RFC PATCH V5 6/8] target-arm: Enable KVM_ARM_VCPU_PSCI_0_2
From: |
Pranavkumar Sawargaonkar |
Subject: |
[Qemu-devel] [RFC PATCH V5 6/8] target-arm: Enable KVM_ARM_VCPU_PSCI_0_2 feature when possible |
Date: |
Mon, 12 May 2014 18:07:24 +0530 |
Latest linux kernel supports in-kernel emulation of PSCI v0.2 but
to enable it we need to select KVM_ARM_VCPU_PSCI_0_2 feature using
KVM_ARM_VCPU_INIT ioctl.
Also, we can use KVM_ARM_VCPU_PSCI_0_2 feature for VCPU only when
linux kernel has KVM_CAP_ARM_PSCI_0_2 capability.
This patch updates kvm_arch_init_vcpu() to enable KVM_ARM_VCPU_PSCI_0_2
feature for VCPU when KVM ARM/ARM64 has KVM_CAP_ARM_PSCI_0_2 capability.
Signed-off-by: Pranavkumar Sawargaonkar <address@hidden>
Signed-off-by: Anup Patel <address@hidden>
---
target-arm/kvm32.c | 3 +++
target-arm/kvm64.c | 3 +++
2 files changed, 6 insertions(+)
diff --git a/target-arm/kvm32.c b/target-arm/kvm32.c
index cc9cdfa..afc248b 100644
--- a/target-arm/kvm32.c
+++ b/target-arm/kvm32.c
@@ -179,6 +179,9 @@ int kvm_arch_init_vcpu(CPUState *cs)
if (cpu->start_powered_off) {
cpu->kvm_init_features[0] |= 1 << KVM_ARM_VCPU_POWER_OFF;
}
+ if (kvm_check_extension(cs->kvm_state, KVM_CAP_ARM_PSCI_0_2)) {
+ cpu->kvm_init_features[0] |= 1 << KVM_ARM_VCPU_PSCI_0_2;
+ }
/* Do KVM_ARM_VCPU_INIT ioctl */
ret = kvm_arm_vcpu_init(cs);
diff --git a/target-arm/kvm64.c b/target-arm/kvm64.c
index 528536f..917d256 100644
--- a/target-arm/kvm64.c
+++ b/target-arm/kvm64.c
@@ -91,6 +91,9 @@ int kvm_arch_init_vcpu(CPUState *cs)
if (cpu->start_powered_off) {
cpu->kvm_init_features[0] |= 1 << KVM_ARM_VCPU_POWER_OFF;
}
+ if (kvm_check_extension(cs->kvm_state, KVM_CAP_ARM_PSCI_0_2)) {
+ cpu->kvm_init_features[0] |= 1 << KVM_ARM_VCPU_PSCI_0_2;
+ }
/* Do KVM_ARM_VCPU_INIT ioctl */
ret = kvm_arm_vcpu_init(cs);
--
1.7.9.5
- [Qemu-devel] [RFC PATCH V5 0/8] PSCI v0.2 support for KVM ARM/ARM64, Pranavkumar Sawargaonkar, 2014/05/12
- [Qemu-devel] [RFC PATCH V5 1/8] update-linux-headers.sh: Add psci.h to linux header sync-up script, Pranavkumar Sawargaonkar, 2014/05/12
- [Qemu-devel] [RFC PATCH V5 2/8] linux-headers: Update KVM headers from linux-next tag next-20140508, Pranavkumar Sawargaonkar, 2014/05/12
- [Qemu-devel] [RFC PATCH V5 3/8] kvm: Handle exit reason KVM_EXIT_SYSTEM_EVENT, Pranavkumar Sawargaonkar, 2014/05/12
- [Qemu-devel] [RFC PATCH V5 4/8] target-arm/kvm-const.h: Add QEMU_KVM_CAP_ARM_PSCI_0_2 define, Pranavkumar Sawargaonkar, 2014/05/12
- [Qemu-devel] [RFC PATCH V5 5/8] target-arm: Common kvm_arm_vcpu_init() for KVM ARM and KVM ARM64, Pranavkumar Sawargaonkar, 2014/05/12
- [Qemu-devel] [RFC PATCH V5 6/8] target-arm: Enable KVM_ARM_VCPU_PSCI_0_2 feature when possible,
Pranavkumar Sawargaonkar <=
- [Qemu-devel] [RFC PATCH V5 7/8] target-arm: Implement kvm_arch_reset_vcpu() for KVM ARM64, Pranavkumar Sawargaonkar, 2014/05/12
- [Qemu-devel] [RFC PATCH V5 8/8] hw/arm/virt: Use PSCI v0.2 compatible when kernel supports it, Pranavkumar Sawargaonkar, 2014/05/12
- Re: [Qemu-devel] [RFC PATCH V5 0/8] PSCI v0.2 support for KVM ARM/ARM64, Peter Maydell, 2014/05/14