On Sat, Sep 26, 2015 at 04:43:28PM -0700, Mario Smarduch wrote:
> This patch adds vcpu fields to track lazy state, save host FPEXC, and
> offsets to fields.
>
> Signed-off-by: Mario Smarduch <m.smarduch@xxxxxxxxxxx>
> ---
> arch/arm/include/asm/kvm_host.h | 6 ++++++
> arch/arm/kernel/asm-offsets.c | 2 ++
> 2 files changed, 8 insertions(+)
>
> diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
> index dcba0fa..194a8ef 100644
> --- a/arch/arm/include/asm/kvm_host.h
> +++ b/arch/arm/include/asm/kvm_host.h
> @@ -111,6 +111,12 @@ struct kvm_vcpu_arch {
> /* Interrupt related fields */
> u32 irq_lines; /* IRQ and FIQ levels */
>
> + /* Track fp/simd lazy switch state */
> + u32 vfp_lazy;
so is this a flags field or basically a boolean? If the latter, what is
does it mean when the field is true vs. false?
> +
> + /* Save host FPEXC register to restore on vcpu put */
> + u32 saved_fpexc;
is this only the host's state? If so, why not name it host_fpexc?
Thanks,
-Christoffer
> +
> /* Exception Information */
> struct kvm_vcpu_fault_info fault;
>
> diff --git a/arch/arm/kernel/asm-offsets.c b/arch/arm/kernel/asm-offsets.c
> index 871b826..e1c3a41 100644
> --- a/arch/arm/kernel/asm-offsets.c
> +++ b/arch/arm/kernel/asm-offsets.c
> @@ -186,6 +186,8 @@ int main(void)
> DEFINE(VCPU_CPSR, offsetof(struct kvm_vcpu, arch.regs.usr_regs.ARM_cpsr));
> DEFINE(VCPU_HCR, offsetof(struct kvm_vcpu, arch.hcr));
> DEFINE(VCPU_IRQ_LINES, offsetof(struct kvm_vcpu, arch.irq_lines));
> + DEFINE(VCPU_VFP_LAZY, offsetof(struct kvm_vcpu, arch.vfp_lazy));
> + DEFINE(VCPU_VFP_FPEXC, offsetof(struct kvm_vcpu, arch.saved_fpexc));
> DEFINE(VCPU_HSR, offsetof(struct kvm_vcpu, arch.fault.hsr));
> DEFINE(VCPU_HxFAR, offsetof(struct kvm_vcpu, arch.fault.hxfar));
> DEFINE(VCPU_HPFAR, offsetof(struct kvm_vcpu, arch.fault.hpfar));
> --
> 1.9.1
>
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