diff options
| author | Marc Zyngier <marc.zyngier@arm.com> | 2015-10-28 12:17:35 +0000 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2016-02-29 18:34:16 +0000 |
| commit | edef528dc4bdab1504e72e0f5436b18f3777efc0 (patch) | |
| tree | 3c92349e2b145f5c7fe7707441016af330762d47 /arch/arm64/kvm/hyp/switch.c | |
| parent | 915ccd1dbf21e0621fb9415ad76e5c2b31ec137a (diff) | |
arm64: KVM: VHE: Differenciate host/guest sysreg save/restore
With ARMv8, host and guest share the same system register file,
making the save/restore procedure completely symetrical.
With VHE, host and guest now have different requirements, as they
use different sysregs.
In order to prepare for this, add split sysreg save/restore functions
for both host and guest. No functional changes yet.
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'arch/arm64/kvm/hyp/switch.c')
| -rw-r--r-- | arch/arm64/kvm/hyp/switch.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/arm64/kvm/hyp/switch.c b/arch/arm64/kvm/hyp/switch.c index f0e7bdfae134..68f3cba25910 100644 --- a/arch/arm64/kvm/hyp/switch.c +++ b/arch/arm64/kvm/hyp/switch.c @@ -102,7 +102,7 @@ static int __hyp_text __guest_run(struct kvm_vcpu *vcpu) host_ctxt = kern_hyp_va(vcpu->arch.host_cpu_context); guest_ctxt = &vcpu->arch.ctxt; - __sysreg_save_state(host_ctxt); + __sysreg_save_host_state(host_ctxt); __debug_cond_save_host_state(vcpu); __activate_traps(vcpu); @@ -116,7 +116,7 @@ static int __hyp_text __guest_run(struct kvm_vcpu *vcpu) * to Cortex-A57 erratum #852523. */ __sysreg32_restore_state(vcpu); - __sysreg_restore_state(guest_ctxt); + __sysreg_restore_guest_state(guest_ctxt); __debug_restore_state(vcpu, kern_hyp_va(vcpu->arch.debug_ptr), guest_ctxt); /* Jump in the fire! */ @@ -125,7 +125,7 @@ static int __hyp_text __guest_run(struct kvm_vcpu *vcpu) fp_enabled = __fpsimd_enabled(); - __sysreg_save_state(guest_ctxt); + __sysreg_save_guest_state(guest_ctxt); __sysreg32_save_state(vcpu); __timer_save_state(vcpu); __vgic_save_state(vcpu); @@ -133,7 +133,7 @@ static int __hyp_text __guest_run(struct kvm_vcpu *vcpu) __deactivate_traps(vcpu); __deactivate_vm(vcpu); - __sysreg_restore_state(host_ctxt); + __sysreg_restore_host_state(host_ctxt); if (fp_enabled) { __fpsimd_save_state(&guest_ctxt->gp_regs.fp_regs); @@ -165,7 +165,7 @@ void __hyp_text __noreturn __hyp_panic(void) host_ctxt = kern_hyp_va(vcpu->arch.host_cpu_context); __deactivate_traps(vcpu); __deactivate_vm(vcpu); - __sysreg_restore_state(host_ctxt); + __sysreg_restore_host_state(host_ctxt); } /* Call panic for real */ |