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| author | Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> | 2010-12-06 16:08:01 +0000 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2010-12-17 16:11:04 +0100 |
| commit | 298800cae72eb2a549374189e87615b2b0b79262 (patch) | |
| tree | fadedcd0842fa60989078a4aa8c1959a27adbbd0 /trace-events | |
| parent | 75411d236d93d79d8052e0116c3eeebe23e2778b (diff) | |
| download | qemu-298800cae72eb2a549374189e87615b2b0b79262.zip qemu-298800cae72eb2a549374189e87615b2b0b79262.tar.gz qemu-298800cae72eb2a549374189e87615b2b0b79262.tar.bz2 | |
qed: Table, L2 cache, and cluster functions
This patch adds code to look up data cluster offsets in the image via
the L1/L2 tables. The L2 tables are writethrough cached in memory for
performance (each read/write requires a lookup so it is essential to
cache the tables).
With cluster lookup code in place it is possible to implement
bdrv_is_allocated() to query the number of contiguous
allocated/unallocated clusters.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'trace-events')
| -rw-r--r-- | trace-events | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/trace-events b/trace-events index da03d4b..59f97a2 100644 --- a/trace-events +++ b/trace-events @@ -192,3 +192,14 @@ disable sun4m_iommu_bad_addr(uint64_t addr) "bad addr %"PRIx64"" # vl.c disable vm_state_notify(int running, int reason) "running %d reason %d" + +# block/qed-l2-cache.c +disable qed_alloc_l2_cache_entry(void *l2_cache, void *entry) "l2_cache %p entry %p" +disable qed_unref_l2_cache_entry(void *entry, int ref) "entry %p ref %d" +disable qed_find_l2_cache_entry(void *l2_cache, void *entry, uint64_t offset, int ref) "l2_cache %p entry %p offset %"PRIu64" ref %d" + +# block/qed-table.c +disable qed_read_table(void *s, uint64_t offset, void *table) "s %p offset %"PRIu64" table %p" +disable qed_read_table_cb(void *s, void *table, int ret) "s %p table %p ret %d" +disable qed_write_table(void *s, uint64_t offset, void *table, unsigned int index, unsigned int n) "s %p offset %"PRIu64" table %p index %u n %u" +disable qed_write_table_cb(void *s, void *table, int flush, int ret) "s %p table %p flush %d ret %d" |