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authorChristoffer Dall <christoffer.dall@linaro.org>2017-08-04 09:39:51 +0200
committerMarc Zyngier <marc.zyngier@arm.com>2018-03-19 10:53:19 +0000
commitc16c1131fb1ccc70aac351111388bf23a97024ca (patch)
tree6f1d664b89c94037bf9ae8b81194e610e1cea8c2 /arch/arm64/kvm
parentd5a21bcc29955c7df3fbd881b4c4229090331a5d (diff)
downloadlinux-c16c1131fb1ccc70aac351111388bf23a97024ca.tar.bz2
KVM: arm64: Directly call VHE and non-VHE FPSIMD enabled functions
There is no longer a need for an alternative to choose the right function to tell us whether or not FPSIMD was enabled for the VM, because we can simply can the appropriate functions directly from within the _vhe and _nvhe run functions. Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'arch/arm64/kvm')
-rw-r--r--arch/arm64/kvm/hyp/switch.c15
1 files changed, 3 insertions, 12 deletions
diff --git a/arch/arm64/kvm/hyp/switch.c b/arch/arm64/kvm/hyp/switch.c
index 9d90bda3c2cc..5fbb77bd4e90 100644
--- a/arch/arm64/kvm/hyp/switch.c
+++ b/arch/arm64/kvm/hyp/switch.c
@@ -33,20 +33,11 @@ static bool __hyp_text __fpsimd_enabled_nvhe(void)
return !(read_sysreg(cptr_el2) & CPTR_EL2_TFP);
}
-static bool __hyp_text __fpsimd_enabled_vhe(void)
+static bool fpsimd_enabled_vhe(void)
{
return !!(read_sysreg(cpacr_el1) & CPACR_EL1_FPEN);
}
-static hyp_alternate_select(__fpsimd_is_enabled,
- __fpsimd_enabled_nvhe, __fpsimd_enabled_vhe,
- ARM64_HAS_VIRT_HOST_EXTN);
-
-bool __hyp_text __fpsimd_enabled(void)
-{
- return __fpsimd_is_enabled()();
-}
-
/* Save the 32-bit only FPSIMD system register state */
static void __hyp_text __fpsimd_save_fpexc32(struct kvm_vcpu *vcpu)
{
@@ -414,7 +405,7 @@ int kvm_vcpu_run_vhe(struct kvm_vcpu *vcpu)
/* And we're baaack! */
} while (fixup_guest_exit(vcpu, &exit_code));
- fp_enabled = __fpsimd_enabled();
+ fp_enabled = fpsimd_enabled_vhe();
sysreg_save_guest_state_vhe(guest_ctxt);
__vgic_save_state(vcpu);
@@ -481,7 +472,7 @@ int __hyp_text __kvm_vcpu_run_nvhe(struct kvm_vcpu *vcpu)
}
}
- fp_enabled = __fpsimd_enabled();
+ fp_enabled = __fpsimd_enabled_nvhe();
__sysreg_save_state_nvhe(guest_ctxt);
__sysreg32_save_state(vcpu);