On 14/11/15 22:12, 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.smard...@samsung.com>
> ---
>  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 3df1e97..f1bf551 100644
> --- a/arch/arm/include/asm/kvm_host.h
> +++ b/arch/arm/include/asm/kvm_host.h
> @@ -107,6 +107,12 @@ struct kvm_vcpu_arch {
>       /* Interrupt related fields */
>       u32 irq_lines;          /* IRQ and FIQ levels */
>  
> +     /* fp/simd dirty flag true if guest accessed register file */
> +     bool    vfp_dirty;

I think we do not need this bool, because it is already represented by
the state of the trapping bits.

> +
> +     /* Save host FPEXC register to later restore on vcpu put */
> +     u32     host_fpexc;
> +
>       /* 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..9f79712 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_DIRTY,     offsetof(struct kvm_vcpu, arch.vfp_dirty));
> +  DEFINE(VCPU_VFP_HOST_FPEXC,        offsetof(struct kvm_vcpu, 
> arch.host_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));
> 

Thanks,

        M.
-- 
Jazz is not dead. It just smells funny...
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to