[Qemu-devel] [PATCH] cputlb: Fix io_readx() to respect the access_type

[Shahab Vahedi]

This change adapts io_readx() to its input access_type. Currently
io_readx() treats any memory access as a read, although it has an
input argument "MMUAccessType access_type". This results in:

1) Calling the tlb_fill() only with MMU_DATA_LOAD
2) Considering only entry->addr_read as the tlb_addr

Buglink: https://bugs.launchpad.net/qemu/+bug/1825359

Signed-off-by: Shahab Vahedi <address@hidden>
---
 accel/tcg/cputlb.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c
index 88cc8389e9..0daac0e806 100644
--- a/accel/tcg/cputlb.c
+++ b/accel/tcg/cputlb.c
@@ -878,10 +878,13 @@ static uint64_t io_readx(CPUArchState *env, CPUIOTLBEntry 
*iotlbentry,
         CPUTLBEntry *entry;
         target_ulong tlb_addr;
 
-        tlb_fill(cpu, addr, size, MMU_DATA_LOAD, mmu_idx, retaddr);
+        tlb_fill(cpu, addr, size, access_type, mmu_idx, retaddr);
 
         entry = tlb_entry(env, mmu_idx, addr);
-        tlb_addr = entry->addr_read;
+        tlb_addr =
+            (access_type == MMU_DATA_LOAD ) ? entry->addr_read  :
+            (access_type == MMU_DATA_STORE) ? entry->addr_write :
+            entry->addr_code;
         if (!(tlb_addr & ~(TARGET_PAGE_MASK | TLB_RECHECK))) {
             /* RAM access */
             uintptr_t haddr = addr + entry->addend;
-- 
2.21.0