[PATCH v2 1/4] x86/mm: Export force_dma_unencrypted

Thomas Hellström (VMware) thomas_os at shipmail.org
Tue Sep 3 13:15:01 UTC 2019

From: Thomas Hellstrom <thellstrom at vmware.com>

The force_dma_unencrypted symbol is needed by TTM to set up the correct
page protection when memory encryption is active. Export it.

Cc: Dave Hansen <dave.hansen at linux.intel.com>
Cc: Andy Lutomirski <luto at kernel.org>
Cc: Peter Zijlstra <peterz at infradead.org>
Cc: Thomas Gleixner <tglx at linutronix.de>
Cc: Ingo Molnar <mingo at redhat.com>
Cc: Borislav Petkov <bp at alien8.de>
Cc: "H. Peter Anvin" <hpa at zytor.com>
Cc: Heiko Carstens <heiko.carstens at de.ibm.com>
Cc: Christian Borntraeger <borntraeger at de.ibm.com>
Cc: Tom Lendacky <thomas.lendacky at amd.com>
Cc: Christian König <christian.koenig at amd.com>
Signed-off-by: Thomas Hellstrom <thellstrom at vmware.com>
 arch/x86/mm/mem_encrypt.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/mm/mem_encrypt.c b/arch/x86/mm/mem_encrypt.c
index fece30ca8b0c..bbfe8802d63a 100644
--- a/arch/x86/mm/mem_encrypt.c
+++ b/arch/x86/mm/mem_encrypt.c
@@ -377,6 +377,7 @@ bool force_dma_unencrypted(struct device *dev)
 	return false;
 /* Architecture __weak replacement functions */
 void __init mem_encrypt_free_decrypted_mem(void)

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