[PATCH] Collect all page_base_address bits for pte-further addresses (v2)

[StDenis, Tom]

The specification says to treat a PTE with the F bit set "like a PDE"
which means that all but the lower 6 bits are part of the page base
address.  Indeed, in the wild a comment came back indicating that
we were stripping off bits needed to properly fetch the next
PTE.

(v2): Only capture excess bits if it is a PTE-FURTHER entry

Signed-off-by: Tom St Denis <tom.stdenis at amd.com>
---
 src/lib/read_vram.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib/read_vram.c b/src/lib/read_vram.c
index cba8f6b..e83a85c 100644
--- a/src/lib/read_vram.c
+++ b/src/lib/read_vram.c
@@ -676,7 +676,7 @@ pde_is_pte:
 				pte_idx = (address >> 12) & ((1ULL << pde_fields.frag_size) - 1);
 
 				// grab PTE base address from the PTE that has the F bit set.
-				pde_fields.pte_base_addr = pte_fields.page_base_addr;
+				pde_fields.pte_base_addr = pte_entry & 0xFFFFFFFFFFC0ULL;
 				goto pte_further;
 			}
 
-- 
2.21.0