| Message ID | 1444098794-19244-2-git-send-email-m.smarduch@samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Mon, Oct 05, 2015 at 07:33:13PM -0700, Mario Smarduch wrote: > This patch adds hooks to support fp/simd lazy switch. A vcpu flag to track > fp/simd state, and flag offset in vcpu structure. > > Signed-off-by: Mario Smarduch <m.smarduch@samsung.com> > --- > arch/arm64/include/asm/kvm_host.h | 3 +++ > arch/arm64/kernel/asm-offsets.c | 1 + > 2 files changed, 4 insertions(+) > > diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h > index 4562459..03f25d0 100644 > --- a/arch/arm64/include/asm/kvm_host.h > +++ b/arch/arm64/include/asm/kvm_host.h > @@ -157,6 +157,9 @@ struct kvm_vcpu_arch { > /* Interrupt related fields */ > u64 irq_lines; /* IRQ and FIQ levels */ > > + /* Track fp/simd lazy switch */ > + u32 vfp_lazy; > + like for the 32-bit patch set I think this could have a more meaningful name with more clearly defined semantics, e.g. vfp_host_dirty. You could also call it vfp_flags like the debug flags and define a specific flag for your use... Thanks, -Christoffer > /* Cache some mmu pages needed inside spinlock regions */ > struct kvm_mmu_memory_cache mmu_page_cache; > > diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c > index 8d89cf8..8311da4 100644 > --- a/arch/arm64/kernel/asm-offsets.c > +++ b/arch/arm64/kernel/asm-offsets.c > @@ -124,6 +124,7 @@ int main(void) > DEFINE(VCPU_HCR_EL2, offsetof(struct kvm_vcpu, arch.hcr_el2)); > DEFINE(VCPU_MDCR_EL2, offsetof(struct kvm_vcpu, arch.mdcr_el2)); > DEFINE(VCPU_IRQ_LINES, offsetof(struct kvm_vcpu, arch.irq_lines)); > + DEFINE(VCPU_VFP_LAZY, offsetof(struct kvm_vcpu, arch.vfp_lazy)); > DEFINE(VCPU_HOST_CONTEXT, offsetof(struct kvm_vcpu, arch.host_cpu_context)); > DEFINE(VCPU_HOST_DEBUG_STATE, offsetof(struct kvm_vcpu, arch.host_debug_state)); > DEFINE(VCPU_TIMER_CNTV_CTL, offsetof(struct kvm_vcpu, arch.timer_cpu.cntv_ctl)); > -- > 1.9.1 >
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 4562459..03f25d0 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -157,6 +157,9 @@ struct kvm_vcpu_arch { /* Interrupt related fields */ u64 irq_lines; /* IRQ and FIQ levels */ + /* Track fp/simd lazy switch */ + u32 vfp_lazy; + /* Cache some mmu pages needed inside spinlock regions */ struct kvm_mmu_memory_cache mmu_page_cache; diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c index 8d89cf8..8311da4 100644 --- a/arch/arm64/kernel/asm-offsets.c +++ b/arch/arm64/kernel/asm-offsets.c @@ -124,6 +124,7 @@ int main(void) DEFINE(VCPU_HCR_EL2, offsetof(struct kvm_vcpu, arch.hcr_el2)); DEFINE(VCPU_MDCR_EL2, offsetof(struct kvm_vcpu, arch.mdcr_el2)); DEFINE(VCPU_IRQ_LINES, offsetof(struct kvm_vcpu, arch.irq_lines)); + DEFINE(VCPU_VFP_LAZY, offsetof(struct kvm_vcpu, arch.vfp_lazy)); DEFINE(VCPU_HOST_CONTEXT, offsetof(struct kvm_vcpu, arch.host_cpu_context)); DEFINE(VCPU_HOST_DEBUG_STATE, offsetof(struct kvm_vcpu, arch.host_debug_state)); DEFINE(VCPU_TIMER_CNTV_CTL, offsetof(struct kvm_vcpu, arch.timer_cpu.cntv_ctl));
This patch adds hooks to support fp/simd lazy switch. A vcpu flag to track fp/simd state, and flag offset in vcpu structure. Signed-off-by: Mario Smarduch <m.smarduch@samsung.com> --- arch/arm64/include/asm/kvm_host.h | 3 +++ arch/arm64/kernel/asm-offsets.c | 1 + 2 files changed, 4 insertions(+)