On Sun, Dec 06, 2015 at 05:07:12PM -0800, Mario Smarduch wrote:
> This patch adds vcpu fields to configure hcptr trap register which is also
> used
> to determine if fp/simd registers are dirty. Adds a field to save host FPEXC,
> and offsets associated offsets.
offsets offsets?
>
> 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..09bb1f2 100644
> --- a/arch/arm/include/asm/kvm_host.h
> +++ b/arch/arm/include/asm/kvm_host.h
> @@ -104,6 +104,12 @@ struct kvm_vcpu_arch {
> /* HYP trapping configuration */
> u32 hcr;
>
> + /* HYP Co-processor fp/simd and trace trapping configuration */
> + u32 hcptr;
> +
> + /* Save host FPEXC register to later restore on vcpu put */
> + u32 host_fpexc;
> +
> /* Interrupt related fields */
> u32 irq_lines; /* IRQ and FIQ levels */
>
> diff --git a/arch/arm/kernel/asm-offsets.c b/arch/arm/kernel/asm-offsets.c
> index 871b826..28ebd4c 100644
> --- a/arch/arm/kernel/asm-offsets.c
> +++ b/arch/arm/kernel/asm-offsets.c
> @@ -185,6 +185,8 @@ int main(void)
> DEFINE(VCPU_PC, offsetof(struct kvm_vcpu,
> arch.regs.usr_regs.ARM_pc));
> DEFINE(VCPU_CPSR, offsetof(struct kvm_vcpu,
> arch.regs.usr_regs.ARM_cpsr));
> DEFINE(VCPU_HCR, offsetof(struct kvm_vcpu, arch.hcr));
> + DEFINE(VCPU_HCPTR, offsetof(struct kvm_vcpu, arch.hcptr));
> + DEFINE(VCPU_VFP_HOST_FPEXC, offsetof(struct kvm_vcpu,
> arch.host_fpexc));
this makes me think this needs a good rebase on world-switch in C, which
is now in kvmarm/next...
> DEFINE(VCPU_IRQ_LINES, offsetof(struct kvm_vcpu, arch.irq_lines));
> DEFINE(VCPU_HSR, offsetof(struct kvm_vcpu, arch.fault.hsr));
> DEFINE(VCPU_HxFAR, offsetof(struct kvm_vcpu, arch.fault.hxfar));
this patch is hard to review on its own as I don't see how this is used,
but ok...
> --
> 1.9.1
>
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