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s390/uv: export prot_virt_guest symbol in uv

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The inline function is_prot_virt_guest() in asm/uv.h makes use of the
prot_virt_guest symbol. As this inline function can be called by other
parts of the kernel (modules and built-in), the symbol should be
exported, similar to the prot_virt_host symbol.

One consumer of is_prot_virt_guest() will be the ap bus code.

Cc: Janosch Frank <frankja@linux.ibm.com>
Cc: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Holger Dengler <dengler@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Acked-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
This commit is contained in:
Holger Dengler 2024-02-15 08:59:45 +01:00 committed by Alexander Gordeev
parent 3c7a377324
commit 05272aa499
1 changed files with 1 additions and 0 deletions
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arch/s390/kernel/uv.c
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@ -21,6 +21,7 @@
/* the bootdata_preserved fields come from ones in arch/s390/boot/uv.c */
#ifdef CONFIG_PROTECTED_VIRTUALIZATION_GUEST
int __bootdata_preserved(prot_virt_guest);
EXPORT_SYMBOL(prot_virt_guest);
#endif
/*