jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
linux-user: fix target_mprotect/target_munmap error return values
target_mprotect/target_munmap return value goes through get_errno at the
call site, thus the functions must either set errno to host error code
and return -1 or return negative guest error code. Do the latter.
Cc: qemu-stable@nongnu.org
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+4
-4
+4
-4
linux-user/mmap.c
+4
-4
linux-user/mmap.c
···
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#endif
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if ((start & ~TARGET_PAGE_MASK) != 0)
80
-
return -EINVAL;
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+
return -TARGET_EINVAL;
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len = TARGET_PAGE_ALIGN(len);
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end = start + len;
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if (!guest_range_valid(start, len)) {
84
-
return -ENOMEM;
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+
return -TARGET_ENOMEM;
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}
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prot &= PROT_READ | PROT_WRITE | PROT_EXEC;
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if (len == 0)
···
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start, len);
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#endif
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if (start & ~TARGET_PAGE_MASK)
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-
return -EINVAL;
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+
return -TARGET_EINVAL;
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len = TARGET_PAGE_ALIGN(len);
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if (len == 0 || !guest_range_valid(start, len)) {
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-
return -EINVAL;
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+
return -TARGET_EINVAL;
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}
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mmap_lock();