diff options
Diffstat (limited to 'arch/arm/kvm/interrupts.S')
| -rw-r--r-- | arch/arm/kvm/interrupts.S | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/arm/kvm/interrupts.S b/arch/arm/kvm/interrupts.S index f7793df62f5..d0a8fa33409 100644 --- a/arch/arm/kvm/interrupts.S +++ b/arch/arm/kvm/interrupts.S @@ -414,6 +414,10 @@ guest_trap: mrcne p15, 4, r2, c6, c0, 4 @ HPFAR bne 3f + /* Preserve PAR */ + mrrc p15, 0, r0, r1, c7 @ PAR + push {r0, r1} + /* Resolve IPA using the xFAR */ mcr p15, 0, r2, c7, c8, 0 @ ATS1CPR isb @@ -424,13 +428,19 @@ guest_trap: lsl r2, r2, #4 orr r2, r2, r1, lsl #24 + /* Restore PAR */ + pop {r0, r1} + mcrr p15, 0, r0, r1, c7 @ PAR + 3: load_vcpu @ Load VCPU pointer to r0 str r2, [r0, #VCPU_HPFAR] 1: mov r1, #ARM_EXCEPTION_HVC b __kvm_vcpu_return -4: pop {r0, r1, r2} @ Failed translation, return to guest +4: pop {r0, r1} @ Failed translation, return to guest + mcrr p15, 0, r0, r1, c7 @ PAR + pop {r0, r1, r2} eret /* |