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authorPaolo Bonzini <pbonzini@redhat.com>2021-12-08 05:29:16 -0500
committerPaolo Bonzini <pbonzini@redhat.com>2021-12-08 05:30:48 -0500
commit93b350f884c451d3cb75e6e3814266cf2d2afab1 (patch)
tree4fc17bfc4e31b6348df3c36117bd64a0b4520f88 /include/linux/cacheflush.h
parentadbfb12d4c4517a8adde23a7fc46538953d56eea (diff)
parent250552b925ce400c17d166422fde9bb215958481 (diff)
Merge branch 'kvm-on-hv-msrbm-fix' into HEAD
Merge bugfix for enlightened MSR Bitmap, before adding support to KVM for exposing the feature to nested guests.
Diffstat (limited to 'include/linux/cacheflush.h')
-rw-r--r--include/linux/cacheflush.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/cacheflush.h b/include/linux/cacheflush.h
new file mode 100644
index 000000000000..fef8b607f97e
--- /dev/null
+++ b/include/linux/cacheflush.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_CACHEFLUSH_H
+#define _LINUX_CACHEFLUSH_H
+
+#include <asm/cacheflush.h>
+
+#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
+#ifndef ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO
+void flush_dcache_folio(struct folio *folio);
+#endif
+#else
+static inline void flush_dcache_folio(struct folio *folio)
+{
+}
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO 0
+#endif /* ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE */
+
+#endif /* _LINUX_CACHEFLUSH_H */