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-rw-r--r--pkg/sentry/platform/kvm/bluepill_arm64.go8
-rw-r--r--pkg/sentry/platform/kvm/machine_arm64_unsafe.go8
2 files changed, 4 insertions, 12 deletions
diff --git a/pkg/sentry/platform/kvm/bluepill_arm64.go b/pkg/sentry/platform/kvm/bluepill_arm64.go
index 35298135a..6846abee9 100644
--- a/pkg/sentry/platform/kvm/bluepill_arm64.go
+++ b/pkg/sentry/platform/kvm/bluepill_arm64.go
@@ -111,8 +111,8 @@ func (c *vCPU) KernelSyscall() {
regs.Pc -= 4 // Rewind.
}
- vfpEnable := ring0.CPACREL1()
- if vfpEnable != 0 {
+ fpDisableTrap := ring0.CPACREL1()
+ if fpDisableTrap != 0 {
fpsimd := fpsimdPtr((*byte)(c.floatingPointState))
fpcr := ring0.GetFPCR()
fpsr := ring0.GetFPSR()
@@ -135,8 +135,8 @@ func (c *vCPU) KernelException(vector ring0.Vector) {
regs.Pc = 0
}
- vfpEnable := ring0.CPACREL1()
- if vfpEnable != 0 {
+ fpDisableTrap := ring0.CPACREL1()
+ if fpDisableTrap != 0 {
fpsimd := fpsimdPtr((*byte)(c.floatingPointState))
fpcr := ring0.GetFPCR()
fpsr := ring0.GetFPSR()
diff --git a/pkg/sentry/platform/kvm/machine_arm64_unsafe.go b/pkg/sentry/platform/kvm/machine_arm64_unsafe.go
index dca0cdb60..78cbd9701 100644
--- a/pkg/sentry/platform/kvm/machine_arm64_unsafe.go
+++ b/pkg/sentry/platform/kvm/machine_arm64_unsafe.go
@@ -70,14 +70,6 @@ func (c *vCPU) initArchState() error {
panic(fmt.Sprintf("error setting KVM_ARM_VCPU_INIT failed: %v", errno))
}
- // cpacr_el1
- reg.id = _KVM_ARM64_REGS_CPACR_EL1
- // It is off by default, and it is turned on only when in use.
- data = 0 // Disable fpsimd.
- if err := c.setOneRegister(&reg); err != nil {
- return err
- }
-
// tcr_el1
data = _TCR_TXSZ_VA48 | _TCR_CACHE_FLAGS | _TCR_SHARED | _TCR_TG_FLAGS | _TCR_ASID16 | _TCR_IPS_40BITS
reg.id = _KVM_ARM64_REGS_TCR_EL1