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authorDon Dugger <donald.d.dugger@intel.com>2015-10-29 22:15:25 +0000
committerGerrit Code Review <gerrit@172.30.200.206>2015-10-29 22:15:25 +0000
commitafc76d554ed517e38d46b6b182a7016406a1323f (patch)
tree06133cb33a43488837ea67667458e1582f2f40ce /kernel/arch/arm64/kvm
parent41f827bfbb10e03c4d228fbcc801dd51fb9983b0 (diff)
parentec0a2ed6d8a5e555edef907895c041e285fdb495 (diff)
Merge "These changes are a raw update to a vanilla kernel 4.1.10, with the recently announced rt patch patch-4.1.10-rt10.patch. No further changes needed."
Diffstat (limited to 'kernel/arch/arm64/kvm')
-rw-r--r--kernel/arch/arm64/kvm/hyp.S9
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.