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-rw-r--r--hw/ide/ahci.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/hw/ide/ahci.h b/hw/ide/ahci.h
index 9a4064f892..f418b30ce7 100644
--- a/hw/ide/ahci.h
+++ b/hw/ide/ahci.h
@@ -201,6 +201,8 @@
#define AHCI_COMMAND_TABLE_ACMD 0x40
+#define AHCI_PRDT_SIZE_MASK 0x3fffff
+
#define IDE_FEATURE_DMA 1
#define READ_FPDMA_QUEUED 0x60