Make MemoryRegion valid.accepts callback take a MemTxAttrs argument

As part of plumbing MemTxAttrs down to the IOMMU translate method,
add MemTxAttrs as an argument to the MemoryRegion valid.accepts
callback. We'll need this for subpage_accepts().

We could take the approach we used with the read and write
callbacks and add new a new _with_attrs version, but since there
are so few implementations of the accepts hook we just change
them all.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180521140402.23318-9-peter.maydell@linaro.org

exec.c

@@ -2539,7 +2539,8 @@ static void notdirty_mem_write(void *opaque, hwaddr ram_addr,
 }
 
 static bool notdirty_mem_accepts(void *opaque, hwaddr addr,
-                                 unsigned size, bool is_write)
+                                 unsigned size, bool is_write,
+                                 MemTxAttrs attrs)
 {
     return is_write;
 }
@@ -2762,7 +2763,8 @@ static MemTxResult subpage_write(void *opaque, hwaddr addr,
 }
 
 static bool subpage_accepts(void *opaque, hwaddr addr,
-                            unsigned len, bool is_write)
+                            unsigned len, bool is_write,
+                            MemTxAttrs attrs)
 {
     subpage_t *subpage = opaque;
 #if defined(DEBUG_SUBPAGE)
@@ -2845,7 +2847,8 @@ static void readonly_mem_write(void *opaque, hwaddr addr,
 }
 
 static bool readonly_mem_accepts(void *opaque, hwaddr addr,
-                                 unsigned size, bool is_write)
+                                 unsigned size, bool is_write,
+                                 MemTxAttrs attrs)
 {
     return is_write;
 }

hw/hppa/dino.c

@@ -137,7 +137,8 @@ static void gsc_to_pci_forwarding(DinoState *s)
 }
 
 static bool dino_chip_mem_valid(void *opaque, hwaddr addr,
-                                unsigned size, bool is_write)
+                                unsigned size, bool is_write,
+                                MemTxAttrs attrs)
 {
     switch (addr) {
     case DINO_IAR0:

hw/nvram/fw_cfg.c

@@ -420,14 +420,16 @@ static void fw_cfg_dma_mem_write(void *opaque, hwaddr addr,
 }
 
 static bool fw_cfg_dma_mem_valid(void *opaque, hwaddr addr,
-                                  unsigned size, bool is_write)
+                                 unsigned size, bool is_write,
+                                 MemTxAttrs attrs)
 {
     return !is_write || ((size == 4 && (addr == 0 || addr == 4)) ||
                          (size == 8 && addr == 0));
 }
 
 static bool fw_cfg_data_mem_valid(void *opaque, hwaddr addr,
-                                  unsigned size, bool is_write)
+                                  unsigned size, bool is_write,
+                                  MemTxAttrs attrs)
 {
     return addr == 0;
 }
@@ -439,7 +441,8 @@ static void fw_cfg_ctl_mem_write(void *opaque, hwaddr addr,
 }
 
 static bool fw_cfg_ctl_mem_valid(void *opaque, hwaddr addr,
-                                 unsigned size, bool is_write)
+                                 unsigned size, bool is_write,
+                                 MemTxAttrs attrs)
 {
     return is_write && size == 2;
 }
@@ -458,7 +461,8 @@ static void fw_cfg_comb_write(void *opaque, hwaddr addr,
 }
 
 static bool fw_cfg_comb_valid(void *opaque, hwaddr addr,
-                                  unsigned size, bool is_write)
+                              unsigned size, bool is_write,
+                              MemTxAttrs attrs)
 {
     return (size == 1) || (is_write && size == 2);
 }

hw/scsi/esp.c

@@ -564,7 +564,8 @@ void esp_reg_write(ESPState *s, uint32_t saddr, uint64_t val)
 }
 
 static bool esp_mem_accepts(void *opaque, hwaddr addr,
-                            unsigned size, bool is_write)
+                            unsigned size, bool is_write,
+                            MemTxAttrs attrs)
 {
     return (size == 1) || (is_write && size == 4);
 }

hw/xen/xen_pt_msi.c

@@ -498,7 +498,8 @@ static uint64_t pci_msix_read(void *opaque, hwaddr addr,
 }
 
 static bool pci_msix_accepts(void *opaque, hwaddr addr,
-                             unsigned size, bool is_write)
+                             unsigned size, bool is_write,
+                             MemTxAttrs attrs)
 {
     return !(addr & (size - 1));
 }

include/exec/memory.h

@@ -166,7 +166,8 @@ struct MemoryRegionOps {
          * as a machine check exception).
          */
         bool (*accepts)(void *opaque, hwaddr addr,
-                        unsigned size, bool is_write);
+                        unsigned size, bool is_write,
+                        MemTxAttrs attrs);
     } valid;
     /* Internal implementation constraints: */
     struct {

memory.c

@@ -1269,7 +1269,8 @@ static void unassigned_mem_write(void *opaque, hwaddr addr,
 }
 
 static bool unassigned_mem_accepts(void *opaque, hwaddr addr,
-                                   unsigned size, bool is_write)
+                                   unsigned size, bool is_write,
+                                   MemTxAttrs attrs)
 {
     return false;
 }
@@ -1374,7 +1375,7 @@ bool memory_region_access_valid(MemoryRegion *mr,
     access_size = MAX(MIN(size, access_size_max), access_size_min);
     for (i = 0; i < size; i += access_size) {
         if (!mr->ops->valid.accepts(mr->opaque, addr + i, access_size,
-                                    is_write)) {
+                                    is_write, attrs)) {
             return false;
         }
     }