When converting virtual to physical addresses,
TARGET_PHYS_ADDR_SPACE_BITS is used under PA-RISC 2.0, and an explicit
cast to uint32_t is used under PA-RISC 1.X. Replace the former with a
more specific macro limited to mem_helper.c, and make the latter
conversion explicit by defining the size of the physical address space
for PA-RISC 1.X.
Reviewed-by: Richard Henderson <[email protected]>
Signed-off-by: Anton Johansson <[email protected]>
---
target/hppa/mem_helper.c | 23 ++++++++++++++++++-----
1 file changed, 18 insertions(+), 5 deletions(-)
diff --git a/target/hppa/mem_helper.c b/target/hppa/mem_helper.c
index cce82e6599..8563bb0e2a 100644
--- a/target/hppa/mem_helper.c
+++ b/target/hppa/mem_helper.c
@@ -29,6 +29,19 @@
#include "hw/core/cpu.h"
#include "trace.h"
+/*
+ * 64-bit (PA-RISC 2.0) machines are assumed to run PA-8700, and 32-bit
+ * machines 7300LC. This gives 44 and 32 bits of physical address space
+ * respectively.
+ *
+ * CPU model Physical address space bits
+ * PA-7000--7300LC 32
+ * PA-8000--8600 40
+ * PA-8700--8900 44
+ */
+#define HPPA_PHYS_ADDR_SPACE_BITS_PA20 44
+#define HPPA_PHYS_ADDR_SPACE_BITS_PA1X 32
+
hwaddr hppa_abs_to_phys_pa2_w1(vaddr addr)
{
/*
@@ -42,8 +55,8 @@ hwaddr hppa_abs_to_phys_pa2_w1(vaddr addr)
* Since the supported physical address space is below 54 bits, the
* H-8 algorithm is moot and all that is left is to truncate.
*/
- QEMU_BUILD_BUG_ON(TARGET_PHYS_ADDR_SPACE_BITS > 54);
- return sextract64(addr, 0, TARGET_PHYS_ADDR_SPACE_BITS);
+ QEMU_BUILD_BUG_ON(HPPA_PHYS_ADDR_SPACE_BITS_PA20 > 54);
+ return sextract64(addr, 0, HPPA_PHYS_ADDR_SPACE_BITS_PA20);
}
hwaddr hppa_abs_to_phys_pa2_w0(vaddr addr)
@@ -67,7 +80,7 @@ hwaddr hppa_abs_to_phys_pa2_w0(vaddr addr)
* is what can be seen on physical machines too.
*/
addr = (uint32_t)addr;
- addr |= -1ull << (TARGET_PHYS_ADDR_SPACE_BITS - 4);
+ addr |= -1ull << (HPPA_PHYS_ADDR_SPACE_BITS_PA20 - 4);
}
return addr;
}
@@ -217,7 +230,7 @@ int hppa_get_physical_address(CPUHPPAState *env, vaddr
addr, int mmu_idx,
if (hppa_is_pa20(env)) {
phys = hppa_abs_to_phys_pa2_w0(addr);
} else {
- phys = (uint32_t)addr;
+ phys = extract64(addr, 0, HPPA_PHYS_ADDR_SPACE_BITS_PA1X);
}
break;
default:
@@ -558,7 +571,7 @@ static void itlbt_pa20(CPUHPPAState *env, target_ulong r1,
/* Align per the page size. */
ent->pa &= TARGET_PAGE_MASK << mask_shift;
/* Ignore the bits beyond physical address space. */
- ent->pa = sextract64(ent->pa, 0, TARGET_PHYS_ADDR_SPACE_BITS);
+ ent->pa = sextract64(ent->pa, 0, HPPA_PHYS_ADDR_SPACE_BITS_PA20);
ent->t = extract64(r2, 61, 1);
ent->d = extract64(r2, 60, 1);
