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| author | Anup Patel <anup.patel@linaro.org> | 2013-09-30 08:50:05 (GMT) |
|---|---|---|
| committer | Matthew Weigel <Matthew.Weigel@freescale.com> | 2014-12-11 18:39:45 (GMT) |
| commit | 2ab6262a195ce620f2f7b6f69e2d804399e621b8 (patch) | |
| tree | c630f5d83faf0b87a7c3c9d5a9dbe08b77a9b6a7 /arch | |
| parent | 3248f56a0d11c2049e825eb13c53290300a55076 (diff) | |
| download | linux-fsl-qoriq-2ab6262a195ce620f2f7b6f69e2d804399e621b8.tar.xz | |
ARM: KVM: Implement kvm_vcpu_preferred_target() function
This patch implements kvm_vcpu_preferred_target() function for
KVM ARM 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 4a6fee805d5e278e4733bf933cb5b184b7a8be1f)
Signed-off-by: Diana Craciun <Diana.Craciun@freescale.com>
Change-Id: I10beaa7f4275742c9f86ba957a7d70adcf5babb0
Reviewed-on: http://git.am.freescale.net:8181/22037
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Zhengxiong Jin <Jason.Jin@freescale.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/include/asm/kvm_host.h | 1 | ||||
| -rw-r--r-- | arch/arm/kvm/guest.c | 20 |
2 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h index 7d22517..76f3c19 100644 --- a/arch/arm/include/asm/kvm_host.h +++ b/arch/arm/include/asm/kvm_host.h @@ -154,6 +154,7 @@ 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/arm/kvm/guest.c b/arch/arm/kvm/guest.c index 152d036..ec98209 100644 --- a/arch/arm/kvm/guest.c +++ b/arch/arm/kvm/guest.c @@ -222,6 +222,26 @@ 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; |