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From: peterx@redhat.com
To: qemu-devel@nongnu.org, Peter Maydell <peter.maydell@linaro.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
	peterx@redhat.com, Fabiano Rosas <farosas@suse.de>,
	David Hildenbrand <david@redhat.com>,
	Prasad Pandit <ppandit@redhat.com>,
	Jonathan Cameron <Jonathan.Cameron@huawei.com>
Subject: [PULL 11/34] physmem: Rename addr1 to more informative mr_addr in flatview_read/write() and similar
Date: Mon, 11 Mar 2024 17:59:02 -0400	[thread overview]
Message-ID: <20240311215925.40618-12-peterx@redhat.com> (raw)
In-Reply-To: <20240311215925.40618-1-peterx@redhat.com>

From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

The calls to flatview_read/write[_continue]() have parameters addr and
addr1 but the names give no indication of what they are addresses of.
Rename addr1 to mr_addr to reflect that it is the translated address
offset within the MemoryRegion returned by flatview_translate().
Similarly rename the parameter in address_space_read/write_cached_slow()

Suggested-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Link: https://lore.kernel.org/r/20240307153710.30907-2-Jonathan.Cameron@huawei.com
Signed-off-by: Peter Xu <peterx@redhat.com>
---
 system/physmem.c | 50 ++++++++++++++++++++++++------------------------
 1 file changed, 25 insertions(+), 25 deletions(-)

diff --git a/system/physmem.c b/system/physmem.c
index 6e9ed97597..e92bed50a6 100644
--- a/system/physmem.c
+++ b/system/physmem.c
@@ -2685,7 +2685,7 @@ static bool flatview_access_allowed(MemoryRegion *mr, MemTxAttrs attrs,
 static MemTxResult flatview_write_continue(FlatView *fv, hwaddr addr,
                                            MemTxAttrs attrs,
                                            const void *ptr,
-                                           hwaddr len, hwaddr addr1,
+                                           hwaddr len, hwaddr mr_addr,
                                            hwaddr l, MemoryRegion *mr)
 {
     uint8_t *ram_ptr;
@@ -2695,12 +2695,12 @@ static MemTxResult flatview_write_continue(FlatView *fv, hwaddr addr,
     const uint8_t *buf = ptr;
 
     for (;;) {
-        if (!flatview_access_allowed(mr, attrs, addr1, l)) {
+        if (!flatview_access_allowed(mr, attrs, mr_addr, l)) {
             result |= MEMTX_ACCESS_ERROR;
             /* Keep going. */
         } else if (!memory_access_is_direct(mr, true)) {
             release_lock |= prepare_mmio_access(mr);
-            l = memory_access_size(mr, l, addr1);
+            l = memory_access_size(mr, l, mr_addr);
             /* XXX: could force current_cpu to NULL to avoid
                potential bugs */
 
@@ -2715,13 +2715,13 @@ static MemTxResult flatview_write_continue(FlatView *fv, hwaddr addr,
                    (l == 8 && len >= 8));
 #endif
             val = ldn_he_p(buf, l);
-            result |= memory_region_dispatch_write(mr, addr1, val,
+            result |= memory_region_dispatch_write(mr, mr_addr, val,
                                                    size_memop(l), attrs);
         } else {
             /* RAM case */
-            ram_ptr = qemu_ram_ptr_length(mr->ram_block, addr1, &l, false);
+            ram_ptr = qemu_ram_ptr_length(mr->ram_block, mr_addr, &l, false);
             memmove(ram_ptr, buf, l);
-            invalidate_and_set_dirty(mr, addr1, l);
+            invalidate_and_set_dirty(mr, mr_addr, l);
         }
 
         if (release_lock) {
@@ -2738,7 +2738,7 @@ static MemTxResult flatview_write_continue(FlatView *fv, hwaddr addr,
         }
 
         l = len;
-        mr = flatview_translate(fv, addr, &addr1, &l, true, attrs);
+        mr = flatview_translate(fv, addr, &mr_addr, &l, true, attrs);
     }
 
     return result;
@@ -2749,22 +2749,22 @@ static MemTxResult flatview_write(FlatView *fv, hwaddr addr, MemTxAttrs attrs,
                                   const void *buf, hwaddr len)
 {
     hwaddr l;
-    hwaddr addr1;
+    hwaddr mr_addr;
     MemoryRegion *mr;
 
     l = len;
-    mr = flatview_translate(fv, addr, &addr1, &l, true, attrs);
+    mr = flatview_translate(fv, addr, &mr_addr, &l, true, attrs);
     if (!flatview_access_allowed(mr, attrs, addr, len)) {
         return MEMTX_ACCESS_ERROR;
     }
     return flatview_write_continue(fv, addr, attrs, buf, len,
-                                   addr1, l, mr);
+                                   mr_addr, l, mr);
 }
 
 /* Called within RCU critical section.  */
 MemTxResult flatview_read_continue(FlatView *fv, hwaddr addr,
                                    MemTxAttrs attrs, void *ptr,
-                                   hwaddr len, hwaddr addr1, hwaddr l,
+                                   hwaddr len, hwaddr mr_addr, hwaddr l,
                                    MemoryRegion *mr)
 {
     uint8_t *ram_ptr;
@@ -2775,14 +2775,14 @@ MemTxResult flatview_read_continue(FlatView *fv, hwaddr addr,
 
     fuzz_dma_read_cb(addr, len, mr);
     for (;;) {
-        if (!flatview_access_allowed(mr, attrs, addr1, l)) {
+        if (!flatview_access_allowed(mr, attrs, mr_addr, l)) {
             result |= MEMTX_ACCESS_ERROR;
             /* Keep going. */
         } else if (!memory_access_is_direct(mr, false)) {
             /* I/O case */
             release_lock |= prepare_mmio_access(mr);
-            l = memory_access_size(mr, l, addr1);
-            result |= memory_region_dispatch_read(mr, addr1, &val,
+            l = memory_access_size(mr, l, mr_addr);
+            result |= memory_region_dispatch_read(mr, mr_addr, &val,
                                                   size_memop(l), attrs);
 
             /*
@@ -2798,7 +2798,7 @@ MemTxResult flatview_read_continue(FlatView *fv, hwaddr addr,
             stn_he_p(buf, l, val);
         } else {
             /* RAM case */
-            ram_ptr = qemu_ram_ptr_length(mr->ram_block, addr1, &l, false);
+            ram_ptr = qemu_ram_ptr_length(mr->ram_block, mr_addr, &l, false);
             memcpy(buf, ram_ptr, l);
         }
 
@@ -2816,7 +2816,7 @@ MemTxResult flatview_read_continue(FlatView *fv, hwaddr addr,
         }
 
         l = len;
-        mr = flatview_translate(fv, addr, &addr1, &l, false, attrs);
+        mr = flatview_translate(fv, addr, &mr_addr, &l, false, attrs);
     }
 
     return result;
@@ -2827,16 +2827,16 @@ static MemTxResult flatview_read(FlatView *fv, hwaddr addr,
                                  MemTxAttrs attrs, void *buf, hwaddr len)
 {
     hwaddr l;
-    hwaddr addr1;
+    hwaddr mr_addr;
     MemoryRegion *mr;
 
     l = len;
-    mr = flatview_translate(fv, addr, &addr1, &l, false, attrs);
+    mr = flatview_translate(fv, addr, &mr_addr, &l, false, attrs);
     if (!flatview_access_allowed(mr, attrs, addr, len)) {
         return MEMTX_ACCESS_ERROR;
     }
     return flatview_read_continue(fv, addr, attrs, buf, len,
-                                  addr1, l, mr);
+                                  mr_addr, l, mr);
 }
 
 MemTxResult address_space_read_full(AddressSpace *as, hwaddr addr,
@@ -3348,15 +3348,15 @@ MemTxResult
 address_space_read_cached_slow(MemoryRegionCache *cache, hwaddr addr,
                                    void *buf, hwaddr len)
 {
-    hwaddr addr1, l;
+    hwaddr mr_addr, l;
     MemoryRegion *mr;
 
     l = len;
-    mr = address_space_translate_cached(cache, addr, &addr1, &l, false,
+    mr = address_space_translate_cached(cache, addr, &mr_addr, &l, false,
                                         MEMTXATTRS_UNSPECIFIED);
     return flatview_read_continue(cache->fv,
                                   addr, MEMTXATTRS_UNSPECIFIED, buf, len,
-                                  addr1, l, mr);
+                                  mr_addr, l, mr);
 }
 
 /* Called from RCU critical section. address_space_write_cached uses this
@@ -3366,15 +3366,15 @@ MemTxResult
 address_space_write_cached_slow(MemoryRegionCache *cache, hwaddr addr,
                                     const void *buf, hwaddr len)
 {
-    hwaddr addr1, l;
+    hwaddr mr_addr, l;
     MemoryRegion *mr;
 
     l = len;
-    mr = address_space_translate_cached(cache, addr, &addr1, &l, true,
+    mr = address_space_translate_cached(cache, addr, &mr_addr, &l, true,
                                         MEMTXATTRS_UNSPECIFIED);
     return flatview_write_continue(cache->fv,
                                    addr, MEMTXATTRS_UNSPECIFIED, buf, len,
-                                   addr1, l, mr);
+                                   mr_addr, l, mr);
 }
 
 #define ARG1_DECL                MemoryRegionCache *cache
-- 
2.44.0



  parent reply	other threads:[~2024-03-11 22:04 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-11 21:58 [PULL 00/34] Migration 20240311 patches peterx
2024-03-11 21:58 ` [PULL 01/34] migration: Don't serialize devices in qemu_savevm_state_iterate() peterx
2024-03-11 21:58 ` [PULL 02/34] vfio/migration: Refactor vfio_save_state() return value peterx
2024-03-11 21:58 ` [PULL 03/34] vfio/migration: Add a note about migration rate limiting peterx
2024-03-11 21:58 ` [PULL 04/34] migration/ram: add additional check peterx
2024-03-11 21:58 ` [PULL 05/34] migration: Report error when shutdown fails peterx
2024-03-11 21:58 ` [PULL 06/34] migration: Remove SaveStateHandler and LoadStateHandler typedefs peterx
2024-03-11 21:58 ` [PULL 07/34] migration: Add documentation for SaveVMHandlers peterx
2024-03-11 21:58 ` [PULL 08/34] migration: Do not call PRECOPY_NOTIFY_SETUP notifiers in case of error peterx
2024-03-11 21:59 ` [PULL 09/34] migration/multifd: Don't fsync when closing QIOChannelFile peterx
2024-03-11 21:59 ` [PULL 10/34] migration/rdma: Fix a memory issue for migration peterx
2024-03-11 21:59 ` peterx [this message]
2024-03-11 21:59 ` [PULL 12/34] physmem: Reduce local variable scope in flatview_read/write_continue() peterx
2024-03-11 21:59 ` [PULL 13/34] physmem: Factor out body of flatview_read/write_continue() loop peterx
2024-03-11 21:59 ` [PULL 14/34] physmem: Fix wrong address in large address_space_read/write_cached_slow() peterx
2024-03-11 21:59 ` [PULL 15/34] migration: Fix format in error message peterx
2024-03-11 21:59 ` [PULL 16/34] migration: export fewer options peterx
2024-03-11 21:59 ` [PULL 17/34] migration: remove migration.h references peterx
2024-03-11 21:59 ` [PULL 18/34] migration: export migration_is_setup_or_active peterx
2024-03-11 21:59 ` [PULL 19/34] migration: export migration_is_active peterx
2024-03-11 21:59 ` [PULL 20/34] migration: export migration_is_running peterx
2024-03-11 21:59 ` [PULL 21/34] migration: export vcpu_dirty_limit_period peterx
2024-03-11 21:59 ` [PULL 22/34] migration: migration_thread_is_self peterx
2024-03-11 21:59 ` [PULL 23/34] migration: migration_is_device peterx
2024-03-11 21:59 ` [PULL 24/34] migration: migration_file_set_error peterx
2024-03-11 21:59 ` [PULL 25/34] migration: privatize colo interfaces peterx
2024-03-11 21:59 ` [PULL 26/34] migration: delete unused accessors peterx
2024-03-11 21:59 ` [PULL 27/34] migration: purge MigrationState from public interface peterx
2024-03-11 21:59 ` [PULL 28/34] migration/multifd: Allow zero pages in file migration peterx
2024-03-11 21:59 ` [PULL 29/34] migration/multifd: Allow clearing of the file_bmap from multifd peterx
2024-03-11 21:59 ` [PULL 30/34] migration/multifd: Add new migration option zero-page-detection peterx
2024-03-11 21:59 ` [PULL 31/34] migration/multifd: Implement zero page transmission on the multifd thread peterx
2024-03-11 21:59 ` [PULL 32/34] migration/multifd: Implement ram_save_target_page_multifd to handle multifd version of MigrationOps::ram_save_target_page peterx
2024-03-11 21:59 ` [PULL 33/34] migration/multifd: Enable multifd zero page checking by default peterx
2024-03-11 21:59 ` [PULL 34/34] migration/multifd: Add new migration test cases for legacy zero page checking peterx
2024-03-12 13:07 ` [PULL 00/34] Migration 20240311 patches Peter Maydell

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