Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-16 16:12:52 +00:00
Code Issues Packages Projects Releases Wiki Activity

ARM: KVM: use kvm_kernel_vfp_t as an abstract type for VFP containers

Browse Source 
In order to keep the VFP allocation code common, use an abstract type
for the VFP containers. Maps onto struct vfp_hard_struct on ARM.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Marc Zyngier 2012-10-27 18:23:25 +01:00 committed by Christoffer Dall
parent e7858c58d5
commit 9c7a6432fb
2 changed files with 7 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/arm/include/asm/kvm_host.h
View File

@ -87,6 +87,8 @@ struct kvm_vcpu_fault_info {
u32 hyp_pc; /* PC when exception was taken from Hyp mode */
};
typedef struct vfp_hard_struct kvm_kernel_vfp_t;
struct kvm_vcpu_arch {
struct kvm_regs regs;
@ -103,8 +105,8 @@ struct kvm_vcpu_arch {
struct kvm_vcpu_fault_info fault;
/* Floating point registers (VFP and Advanced SIMD/NEON) */
struct vfp_hard_struct vfp_guest;
struct vfp_hard_struct *vfp_host;
kvm_kernel_vfp_t vfp_guest;
kvm_kernel_vfp_t *vfp_host;
/* VGIC state */
struct vgic_cpu vgic_cpu;

6
arch/arm/kvm/arm.c
View File

@ -49,7 +49,7 @@ __asm__(".arch_extension virt");
#endif
static DEFINE_PER_CPU(unsigned long, kvm_arm_hyp_stack_page);
static struct vfp_hard_struct __percpu *kvm_host_vfp_state;
static kvm_kernel_vfp_t __percpu *kvm_host_vfp_state;
static unsigned long hyp_default_vectors;
/* Per-CPU variable containing the currently running vcpu. */
@ -908,7 +908,7 @@ static int init_hyp_mode(void)
/*
* Map the host VFP structures
*/
kvm_host_vfp_state = alloc_percpu(struct vfp_hard_struct);
kvm_host_vfp_state = alloc_percpu(kvm_kernel_vfp_t);
if (!kvm_host_vfp_state) {
err = -ENOMEM;
kvm_err("Cannot allocate host VFP state\n");
@ -916,7 +916,7 @@ static int init_hyp_mode(void)
}
for_each_possible_cpu(cpu) {
struct vfp_hard_struct *vfp;
kvm_kernel_vfp_t *vfp;
vfp = per_cpu_ptr(kvm_host_vfp_state, cpu);
err = create_hyp_mappings(vfp, vfp + 1);