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
next prev 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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