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| author | Richard Henderson | 2022-09-17 14:25:12 +0200 |
|---|---|---|
| committer | Richard Henderson | 2022-10-26 03:11:28 +0200 |
| commit | 50d4c8c1d433ae843a6b86a65467c507095f65f1 (patch) | |
| tree | 6c5fe4a6b10dc82d545a62523d5620c4b72b7adc /accel | |
| parent | include/qemu/thread: Use qatomic_* functions (diff) | |
| download | qemu-50d4c8c1d433ae843a6b86a65467c507095f65f1.tar.gz qemu-50d4c8c1d433ae843a6b86a65467c507095f65f1.tar.xz qemu-50d4c8c1d433ae843a6b86a65467c507095f65f1.zip | |
accel/tcg: Make page_alloc_target_data allocation constant
Use a constant target data allocation size for all pages.
This will be necessary to reduce overhead of page tracking.
Since TARGET_PAGE_DATA_SIZE is now required, we can use this
to omit data tracking for targets that don't require it.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'accel')
| -rw-r--r-- | accel/tcg/translate-all.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index 4ed75a13e1..64a2601f9f 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -2271,6 +2271,7 @@ void page_set_flags(target_ulong start, target_ulong end, int flags) void page_reset_target_data(target_ulong start, target_ulong end) { +#ifdef TARGET_PAGE_DATA_SIZE target_ulong addr, len; /* @@ -2293,15 +2294,17 @@ void page_reset_target_data(target_ulong start, target_ulong end) g_free(p->target_data); p->target_data = NULL; } +#endif } +#ifdef TARGET_PAGE_DATA_SIZE void *page_get_target_data(target_ulong address) { PageDesc *p = page_find(address >> TARGET_PAGE_BITS); return p ? p->target_data : NULL; } -void *page_alloc_target_data(target_ulong address, size_t size) +void *page_alloc_target_data(target_ulong address) { PageDesc *p = page_find(address >> TARGET_PAGE_BITS); void *ret = NULL; @@ -2309,11 +2312,12 @@ void *page_alloc_target_data(target_ulong address, size_t size) if (p->flags & PAGE_VALID) { ret = p->target_data; if (!ret) { - p->target_data = ret = g_malloc0(size); + p->target_data = ret = g_malloc0(TARGET_PAGE_DATA_SIZE); } } return ret; } +#endif /* TARGET_PAGE_DATA_SIZE */ int page_check_range(target_ulong start, target_ulong len, int flags) { |