diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2019-09-13 12:07:40 -0400 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2019-10-28 10:35:20 +0100 |
| commit | bb8e3ea6fa8f616678133c9e8c8c3bf232c179ec (patch) | |
| tree | bf2bb8ec6c9416020b6b6ae455af0119e6509e28 /exec-vary.c | |
| parent | f048b8a7cefcabb0e55210a76775f9be57c4d3f4 (diff) | |
| download | qemu-bb8e3ea6fa8f616678133c9e8c8c3bf232c179ec.zip qemu-bb8e3ea6fa8f616678133c9e8c8c3bf232c179ec.tar.gz qemu-bb8e3ea6fa8f616678133c9e8c8c3bf232c179ec.tar.bz2 | |
exec: Cache TARGET_PAGE_MASK for TARGET_PAGE_BITS_VARY
This eliminates a set of runtime shifts. It turns out that we
require TARGET_PAGE_MASK more often than TARGET_PAGE_SIZE, so
redefine TARGET_PAGE_SIZE based on TARGET_PAGE_MASK instead of
the other way around.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'exec-vary.c')
| -rw-r--r-- | exec-vary.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/exec-vary.c b/exec-vary.c index 8725fd0..ff905f2 100644 --- a/exec-vary.c +++ b/exec-vary.c @@ -96,6 +96,7 @@ void finalize_target_page_bits(void) if (init_target_page.bits == 0) { init_target_page.bits = TARGET_PAGE_BITS_MIN; } + init_target_page.mask = (target_long)-1 << init_target_page.bits; init_target_page.decided = true; /* |