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[PULL,02/28] target-arm: use extended address bits from supersection short descriptor

Message ID 1434389098-13430-3-git-send-email-peter.maydell@linaro.org
State New
Headers show

Commit Message

Peter Maydell June 15, 2015, 5:24 p.m. UTC 
From: Sergey Fedorov <serge.fdrv@gmail.com>

Since ARMv7 with LPAE support, a supersection short translation table
descriptor has had extended base address fields which hold bits 39:32 of
translated address. These fields are IMPDEF in ARMv6 and ARMv7 without
LPAE support.

Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Message-id: 1433235718-30485-1-git-send-email-serge.fdrv@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target-arm/helper.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/target-arm/helper.c b/target-arm/helper.c
index 3ed2fc3..611b0e7 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -5397,6 +5397,8 @@  static int get_phys_addr_v6(CPUARMState *env, uint32_t address, int access_type,
         if (desc & (1 << 18)) {
             /* Supersection.  */
             phys_addr = (desc & 0xff000000) | (address & 0x00ffffff);
+            phys_addr |= (uint64_t)extract32(desc, 20, 4) << 32;
+            phys_addr |= (uint64_t)extract32(desc, 5, 4) << 36;
             *page_size = 0x1000000;
         } else {
             /* Section.  */