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| author | Kele Huang <kele.hwang@gmail.com> | 2021-04-01 18:04:57 +0800 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2021-04-05 07:32:56 -0700 |
| commit | 4e655e3cd80535328794c763681a6aa11a69178f (patch) | |
| tree | a967ecb592a392dee850eb0f473ec3a9fa7a3bf6 /linux-user/qemu.h | |
| parent | 25d75c99b2e5941c67049ee776efdb226414f4c6 (diff) | |
| download | focaccia-qemu-4e655e3cd80535328794c763681a6aa11a69178f.tar.gz focaccia-qemu-4e655e3cd80535328794c763681a6aa11a69178f.zip | |
tcg/mips: Fix SoftTLB comparison on mips backend
The addrl used to compare with SoftTLB entry should be sign-extended in common case, and it will cause constant failing in SoftTLB comparisons for the addrl whose address is over 0x80000000 on the emulation of 32-bit guest on 64-bit host. This is an important performance bug fix. Spec2000 gzip rate increase from ~45 to ~140 on Loongson 3A4000 (MIPS compatible platform). Signed-off-by: Kele Huang <kele.hwang@gmail.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210401100457.191458-1-kele.hwang@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'linux-user/qemu.h')
0 files changed, 0 insertions, 0 deletions