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| author | Anup Patel <anup.patel@linaro.org> | 2013-09-30 08:50:06 (GMT) |
|---|---|---|
| committer | Matthew Weigel <Matthew.Weigel@freescale.com> | 2014-12-11 18:39:45 (GMT) |
| commit | 4bd8f4ce5a16330fb3da27237a11d1d1e24162c0 (patch) | |
| tree | 2619dfcf119c1230de866aaa5cda154163fb8367 /arch/arm64 | |
| parent | 2ab6262a195ce620f2f7b6f69e2d804399e621b8 (diff) | |
| download | linux-fsl-qoriq-4bd8f4ce5a16330fb3da27237a11d1d1e24162c0.tar.xz | |
ARM64: KVM: Implement kvm_vcpu_preferred_target() function
This patch implements kvm_vcpu_preferred_target() function for
KVM ARM64 which will help us implement KVM_ARM_PREFERRED_TARGET
ioctl for user space.
Signed-off-by: Anup Patel <anup.patel@linaro.org>
Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
(cherry picked from commit 473bdc0e6565ebb22455657a40daa21b6b4ee16b)
Signed-off-by: Diana Craciun <Diana.Craciun@freescale.com>
Change-Id: If4340022e8f7f396eeb760c9f6c0aa46225e3315
Reviewed-on: http://git.am.freescale.net:8181/22038
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Zhengxiong Jin <Jason.Jin@freescale.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/kvm_host.h | 1 | ||||
| -rw-r--r-- | arch/arm64/kvm/guest.c | 20 |
2 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 0859a4d..4cc8c70 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -151,6 +151,7 @@ struct kvm_vcpu_stat { struct kvm_vcpu_init; int kvm_vcpu_set_target(struct kvm_vcpu *vcpu, const struct kvm_vcpu_init *init); +int kvm_vcpu_preferred_target(struct kvm_vcpu_init *init); unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu); int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices); struct kvm_one_reg; diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c index 2c3ff67..3f0731e 100644 --- a/arch/arm64/kvm/guest.c +++ b/arch/arm64/kvm/guest.c @@ -248,6 +248,26 @@ int kvm_vcpu_set_target(struct kvm_vcpu *vcpu, return kvm_reset_vcpu(vcpu); } +int kvm_vcpu_preferred_target(struct kvm_vcpu_init *init) +{ + int target = kvm_target_cpu(); + + if (target < 0) + return -ENODEV; + + memset(init, 0, sizeof(*init)); + + /* + * For now, we don't return any features. + * In future, we might use features to return target + * specific features available for the preferred + * target type. + */ + init->target = (__u32)target; + + return 0; +} + int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) { return -EINVAL; |