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[v8,RESEND,34/38] x86/mm: Create native_make_p4d() for PGTABLE_LEVELS <= 4

Message ID 20170627151348.17428.43372.stgit@tlendack-t1.amdoffice.net (mailing list archive)
State New, archived
Headers show

Commit Message

Tom Lendacky June 27, 2017, 3:13 p.m. UTC 
Currently, native_make_p4d() is only defined when CONFIG_PGTABLE_LEVELS
is greater than 4. Create a macro that will allow for defining and using
native_make_p4d() when CONFIG_PGTABLES_LEVELS is not greater than 4.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
---
 arch/x86/include/asm/pgtable_types.h |    5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index 830992f..6c55973 100644
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -309,6 +309,11 @@  static inline p4dval_t native_p4d_val(p4d_t p4d)
 #else
 #include <asm-generic/pgtable-nop4d.h>
 
+static inline p4d_t native_make_p4d(pudval_t val)
+{
+	return (p4d_t) { .pgd = native_make_pgd((pgdval_t)val) };
+}
+
 static inline p4dval_t native_p4d_val(p4d_t p4d)
 {
 	return native_pgd_val(p4d.pgd);