diff options
Diffstat (limited to 'target/arm/helper.c')
| -rw-r--r-- | target/arm/helper.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/target/arm/helper.c b/target/arm/helper.c index 6be9ffa09e..4eaf7333c7 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -10591,6 +10591,10 @@ static bool get_phys_addr_lpae(CPUARMState *env, target_ulong address, /* Now we can extract the actual base address from the TTBR */ descaddr = extract64(ttbr, 0, 48); + /* + * We rely on this masking to clear the RES0 bits at the bottom of the TTBR + * and also to mask out CnP (bit 0) which could validly be non-zero. + */ descaddr &= ~indexmask; /* The address field in the descriptor goes up to bit 39 for ARMv7 |