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xen: mapcache: Refactor xen_replace_cache_entry_unlocked

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Add MapCache argument to xen_replace_cache_entry_unlocked in
preparation for supporting multiple map caches.

No functional change.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240430164939.925307-8-edgar.iglesias@gmail.com>
[PMD: Remove last global mapcache pointer, reported by sstabellini]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This commit is contained in:
Edgar E. Iglesias 2024-04-30 18:49:29 +02:00 • committed by Philippe Mathieu-Daudé
parent 9b00555354
commit 8be27f50ac
1 changed files with 6 additions and 4 deletions
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10
hw/xen/xen-mapcache.c
View file

@ -557,7 +557,8 @@ void xen_invalidate_map_cache(void)
mapcache_unlock(mapcache); mapcache_unlock(mapcache);
} }
static uint8_t *xen_replace_cache_entry_unlocked(hwaddr old_phys_addr, static uint8_t *xen_replace_cache_entry_unlocked(MapCache *mc,
hwaddr old_phys_addr,
hwaddr new_phys_addr, hwaddr new_phys_addr,
hwaddr size) hwaddr size)
{ {
@ -579,7 +580,7 @@ static uint8_t *xen_replace_cache_entry_unlocked(hwaddr old_phys_addr,
cache_size += MCACHE_BUCKET_SIZE - (cache_size % MCACHE_BUCKET_SIZE); cache_size += MCACHE_BUCKET_SIZE - (cache_size % MCACHE_BUCKET_SIZE);
} }
entry = &mapcache->entry[address_index % mapcache->nr_buckets]; entry = &mc->entry[address_index % mc->nr_buckets];
while (entry && !(entry->paddr_index == address_index && while (entry && !(entry->paddr_index == address_index &&
entry->size == cache_size)) { entry->size == cache_size)) {
entry = entry->next; entry = entry->next;
@ -594,7 +595,7 @@ static uint8_t *xen_replace_cache_entry_unlocked(hwaddr old_phys_addr,
trace_xen_replace_cache_entry_dummy(old_phys_addr, new_phys_addr); trace_xen_replace_cache_entry_dummy(old_phys_addr, new_phys_addr);
xen_remap_bucket(mapcache, entry, entry->vaddr_base, xen_remap_bucket(mc, entry, entry->vaddr_base,
cache_size, address_index, false); cache_size, address_index, false);
if (!test_bits(address_offset >> XC_PAGE_SHIFT, if (!test_bits(address_offset >> XC_PAGE_SHIFT,
test_bit_size >> XC_PAGE_SHIFT, test_bit_size >> XC_PAGE_SHIFT,
@ -615,7 +616,8 @@ uint8_t *xen_replace_cache_entry(hwaddr old_phys_addr,
uint8_t *p; uint8_t *p;
mapcache_lock(mapcache); mapcache_lock(mapcache);
p = xen_replace_cache_entry_unlocked(old_phys_addr, new_phys_addr, size); p = xen_replace_cache_entry_unlocked(mapcache, old_phys_addr,
new_phys_addr, size);
mapcache_unlock(mapcache); mapcache_unlock(mapcache);
return p; return p;
} }