path: root/lib
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authorTom Lendacky <thomas.lendacky@amd.com>2017-10-20 09:30:52 -0500
committerThomas Gleixner <tglx@linutronix.de>2017-11-07 15:35:58 +0100
commit0e4c12b45aa88e74fdda117896d2b61c4e510cb9 (patch)
tree9007109ad9055fd3b23d6ba2d1f0b63e8421337e /lib
parent1d2e733b13b450e5854f4a8f8efcd77fa7362d62 (diff)
x86/mm, resource: Use PAGE_KERNEL protection for ioremap of memory pages
In order for memory pages to be properly mapped when SEV is active, it's necessary to use the PAGE_KERNEL protection attribute as the base protection. This ensures that memory mapping of, e.g. ACPI tables, receives the proper mapping attributes. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@suse.de> Tested-by: Borislav Petkov <bp@suse.de> Cc: Laura Abbott <labbott@redhat.com> Cc: Kees Cook <keescook@chromium.org> Cc: kvm@vger.kernel.org Cc: Jérôme Glisse <jglisse@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Andy Lutomirski <luto@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Dan Williams <dan.j.williams@intel.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Link: https://lkml.kernel.org/r/20171020143059.3291-11-brijesh.singh@amd.com
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