Current implementation is not accurate according to ARMv7-AR reference
manual. See "B4.1.153 TTBCR, Translation Table Base Control Register,
VMSA | TTBCR format when using the Long-descriptor translation table
format". When LPAE feature is supported, EAE, bit[31] selects
translation descriptor format and, therefore, TTBCR format.
Signed-off-by: Sergey Fedorov <s.fedo...@samsung.com>
---
target-arm/helper.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 3445813..8b1ddce 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -1173,7 +1173,7 @@ static int vmsa_ttbcr_raw_write(CPUARMState *env, const
ARMCPRegInfo *ri,
{
int maskshift = extract32(value, 0, 3);
- if (arm_feature(env, ARM_FEATURE_LPAE)) {
+ if (arm_feature(env, ARM_FEATURE_LPAE) && (value & (1 << 31))) {
value &= ~((7 << 19) | (3 << 14) | (0xf << 3));
} else {
value &= 7;
--
1.7.9.5
