diff options
Diffstat (limited to 'kernel/arch/arm64/kvm')
| -rw-r--r-- | kernel/arch/arm64/kvm/hyp.S | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/kernel/arch/arm64/kvm/hyp.S b/kernel/arch/arm64/kvm/hyp.S index 5befd010e..64f9e60b3 100644 --- a/kernel/arch/arm64/kvm/hyp.S +++ b/kernel/arch/arm64/kvm/hyp.S @@ -844,8 +844,6 @@ mrs x3, cntv_ctl_el0 and x3, x3, #3 str w3, [x0, #VCPU_TIMER_CNTV_CTL] - bic x3, x3, #1 // Clear Enable - msr cntv_ctl_el0, x3 isb @@ -853,6 +851,9 @@ str x3, [x0, #VCPU_TIMER_CNTV_CVAL] 1: + // Disable the virtual timer + msr cntv_ctl_el0, xzr + // Allow physical timer/counter access for the host mrs x2, cnthctl_el2 orr x2, x2, #3 @@ -947,13 +948,15 @@ ENTRY(__kvm_vcpu_run) // Guest context add x2, x0, #VCPU_CONTEXT + // We must restore the 32-bit state before the sysregs, thanks + // to Cortex-A57 erratum #852523. + restore_guest_32bit_state bl __restore_sysregs bl __restore_fpsimd skip_debug_state x3, 1f bl __restore_debug 1: - restore_guest_32bit_state restore_guest_regs // That's it, no more messing around. |