Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
32 lines
734 B
C
32 lines
734 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_S390_KFENCE_H
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#define _ASM_S390_KFENCE_H
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#include <linux/mm.h>
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#include <linux/kfence.h>
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#include <asm/set_memory.h>
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#include <asm/page.h>
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void __kernel_map_pages(struct page *page, int numpages, int enable);
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static __always_inline bool arch_kfence_init_pool(void)
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{
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#ifdef CONFIG_KFENCE
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unsigned long pool_pages = KFENCE_POOL_SIZE >> PAGE_SHIFT;
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set_memory_4k((unsigned long)__kfence_pool, pool_pages);
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#endif
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return true;
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}
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#define arch_kfence_test_address(addr) ((addr) & PAGE_MASK)
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static inline bool kfence_protect_page(unsigned long addr, bool protect)
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{
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__kernel_map_pages(virt_to_page((void *)addr), 1, !protect);
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return true;
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}
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#endif /* _ASM_S390_KFENCE_H */
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