From: marc.zyngier@arm•com (Marc Zyngier)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v3 2/4] ARM64: KVM: Implement kvm_vcpu_preferred_target() function
Date: Thu, 19 Sep 2013 15:15:46 +0100 [thread overview]
Message-ID: <523B0712.1020705@arm.com> (raw)
In-Reply-To: <1379596302-21522-3-git-send-email-anup.patel@linaro.org>
On 19/09/13 14:11, Anup Patel wrote:
> 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>
> ---
> arch/arm/include/asm/kvm_host.h | 1 +
This hunk belongs to patch #1, and the similar hunk in #1 belongs here.
M.
> arch/arm64/kvm/guest.c | 21 +++++++++++++++++++++
> 2 files changed, 22 insertions(+)
>
> 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/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c
> index d7bf7d6..4da7882 100644
> --- a/arch/arm64/kvm/guest.c
> +++ b/arch/arm64/kvm/guest.c
> @@ -254,6 +254,27 @@ 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 return all optional features are available
> + * for preferred target. In future, we might have features
> + * available based on underlying host.
> + */
> + init->target = (__u32)target;
> + init->features[0] |= (1 << KVM_ARM_VCPU_POWER_OFF);
> + init->features[0] |= (1 << KVM_ARM_VCPU_EL1_32BIT);
> +
> + return 0;
> +}
> +
> int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
> {
> return -EINVAL;
>
--
Jazz is not dead. It just smells funny...
next prev parent reply other threads:[~2013-09-19 14:15 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-19 13:11 [PATCH v3 0/4] Target CPU=Host implementation for KVM ARM/ARM64 Anup Patel
2013-09-19 13:11 ` [PATCH v3 1/4] ARM: KVM: Implement kvm_vcpu_preferred_target() function Anup Patel
2013-09-19 14:27 ` Marc Zyngier
2013-09-19 19:20 ` Christoffer Dall
2013-09-23 8:05 ` Anup Patel
2013-09-23 15:31 ` Christoffer Dall
2013-09-23 15:44 ` Marc Zyngier
2013-09-23 15:54 ` Anup Patel
2013-09-23 16:16 ` Christoffer Dall
2013-09-19 13:11 ` [PATCH v3 2/4] ARM64: " Anup Patel
2013-09-19 14:15 ` Marc Zyngier [this message]
2013-09-19 15:51 ` Anup Patel
2013-09-19 13:11 ` [PATCH v3 3/4] ARM/ARM64: KVM: Implement KVM_ARM_PREFERRED_TARGET ioctl Anup Patel
2013-09-19 13:11 ` [PATCH v3 4/4] KVM: Add documentation for " Anup Patel
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