[PATCH v5 02/20] target/arm: ensure TCG IO accesses set appropriate MemTxAttrs

["Alex Bennée" <alex.bennee@linaro.org>]

Both arm_cpu_tlb_fill (for normal IO) and
arm_cpu_get_phys_page_attrs_debug (for debug access) come through
get_phys_addr which is setting the other memory attributes for the
transaction. As these are all by definition CPU accesses we can also
set the requested_type/index as appropriate.

We also have to handle where the attributes are totally reset if we
call into get_phys_addr_twostage.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

---
v3
  - reword commit summary
v5
  - fix for new *result ABI
  - use MEMTXATTRS_CPU to fill in the initial values
  - also reset attrs in get_phys_addr_twostage
---
 target/arm/ptw.c        | 3 ++-
 target/arm/tlb_helper.c | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/target/arm/ptw.c b/target/arm/ptw.c
index 3745ac9723..4b6683f90d 100644
--- a/target/arm/ptw.c
+++ b/target/arm/ptw.c
@@ -2634,6 +2634,7 @@ static bool get_phys_addr_twostage(CPUARMState *env, S1Translate *ptw,
     s1_lgpgsz = result->f.lg_page_size;
     cacheattrs1 = result->cacheattrs;
     memset(result, 0, sizeof(*result));
+    result->f.attrs = MEMTXATTRS_CPU(env_cpu(env));
 
     ret = get_phys_addr_lpae(env, ptw, ipa, access_type, is_el0, result, fi);
     fi->s2addr = ipa;
@@ -2872,7 +2873,7 @@ hwaddr arm_cpu_get_phys_page_attrs_debug(CPUState *cs, vaddr addr,
         .in_secure = arm_is_secure(env),
         .in_debug = true,
     };
-    GetPhysAddrResult res = {};
+    GetPhysAddrResult res = { .f.attrs = MEMTXATTRS_CPU(cs) };
     ARMMMUFaultInfo fi = {};
     bool ret;
 
diff --git a/target/arm/tlb_helper.c b/target/arm/tlb_helper.c
index 0f4f4fc809..5960269421 100644
--- a/target/arm/tlb_helper.c
+++ b/target/arm/tlb_helper.c
@@ -208,7 +208,7 @@ bool arm_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
                       bool probe, uintptr_t retaddr)
 {
     ARMCPU *cpu = ARM_CPU(cs);
-    GetPhysAddrResult res = {};
+    GetPhysAddrResult res = { .f.attrs = MEMTXATTRS_CPU(cs) };
     ARMMMUFaultInfo local_fi, *fi;
     int ret;
 
-- 
2.34.1