From 740f013284444257329c11bed5ee209d6a4dcc90 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@linux.ibm.com>
Date: Sun, 3 Jan 2021 16:46:28 +1100
Subject: [PATCH] Initialize PID register

If the PID register is read before it is written we'll consume
X state data.

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
---
 mmu.vhdl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mmu.vhdl b/mmu.vhdl
index 09df3ae..623c2c9 100644
--- a/mmu.vhdl
+++ b/mmu.vhdl
@@ -88,6 +88,7 @@ begin
                 r.pt0_valid <= '0';
                 r.pt3_valid <= '0';
                 r.prtbl <= (others => '0');
+                r.pid <= (others => '0');
             else
                 if rin.valid = '1' then
                     report "MMU got tlb miss for " & to_hstring(rin.addr);