* [Qemu-devel] [PATCH v2] target-arm: use extended address bits from supersection short descriptor
@ 2015-06-02 8:42 Sergey Fedorov
0 siblings, 0 replies; only message in thread
From: Sergey Fedorov @ 2015-06-02 8:42 UTC (permalink / raw)
To: qemu-devel; +Cc: Peter Maydell, Sergey Fedorov
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>
---
target-arm/helper.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 1cc4993..0a97312 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -5323,6 +5323,8 @@ 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. */
--
1.9.1
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