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accel/tcg: Use tb_invalidate_phys_range in page_set_flags

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Flush translation blocks in bulk, rather than page-by-page.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-10-05 12:56:46 -07:00
parent 43301e0566
commit e786509f29
1 changed files with 6 additions and 2 deletions
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8
accel/tcg/translate-all.c
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@ -1352,7 +1352,7 @@ int page_get_flags(target_ulong address)
void page_set_flags(target_ulong start, target_ulong end, int flags) void page_set_flags(target_ulong start, target_ulong end, int flags)
{ {
target_ulong addr, len; target_ulong addr, len;
bool reset; bool reset, inval_tb = false;
/* This function should never be called with addresses outside the /* This function should never be called with addresses outside the
guest address space. If this assert fires, it probably indicates guest address space. If this assert fires, it probably indicates
@ -1388,11 +1388,15 @@ void page_set_flags(target_ulong start, target_ulong end, int flags)
&& (reset || && (reset ||
!(flags & PAGE_EXEC) || !(flags & PAGE_EXEC) ||
(flags & ~p->flags & PAGE_WRITE))) { (flags & ~p->flags & PAGE_WRITE))) {
tb_invalidate_phys_page(addr); inval_tb = true;
} }
/* Using mprotect on a page does not change sticky bits. */ /* Using mprotect on a page does not change sticky bits. */
p->flags = (reset ? 0 : p->flags & PAGE_STICKY) | flags; p->flags = (reset ? 0 : p->flags & PAGE_STICKY) | flags;
} }
if (inval_tb) {
tb_invalidate_phys_range(start, end);
}
} }
void page_reset_target_data(target_ulong start, target_ulong end) void page_reset_target_data(target_ulong start, target_ulong end)