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linux-user/arm: Mark the commpage executable

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We're about to start validating PAGE_EXEC, which means
that we've got to mark the commpage executable.  We had
been placing the commpage outside of reserved_va, which
was incorrect and lead to an abort.

Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Tested-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-08-10 17:22:04 -07:00
parent fd28528ece
commit fbd3c4cff6
2 changed files with 7 additions and 3 deletions
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4
linux-user/arm/target_cpu.h
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@ -34,9 +34,9 @@ static inline unsigned long arm_max_reserved_va(CPUState *cs)
} else {
/*
* We need to be able to map the commpage.
* See validate_guest_space in linux-user/elfload.c.
* See init_guest_commpage in linux-user/elfload.c.
*/
return 0xffff0000ul;
return 0xfffffffful;
}
}
#define MAX_RESERVED_VA arm_max_reserved_va