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[Qemu-devel] [PATCH v2] target-sh4: update PTEH upon MMU exception


From: Alexandre Courbot
Subject: [Qemu-devel] [PATCH v2] target-sh4: update PTEH upon MMU exception
Date: Wed, 26 Jan 2011 11:57:53 +0900

Update the PTEH register to contain the VPN at which an MMU
exception occured as specified by the SH4 reference.

Signed-off-by: Alexandre Courbot <address@hidden>
---
 target-sh4/helper.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/target-sh4/helper.c b/target-sh4/helper.c
index 19b309b..8f8c66c 100644
--- a/target-sh4/helper.c
+++ b/target-sh4/helper.c
@@ -453,6 +453,10 @@ int cpu_sh4_handle_mmu_fault(CPUState * env, target_ulong 
address, int rw,
 
     if (ret != MMU_OK) {
        env->tea = address;
+       if (ret != MMU_DTLB_MULTIPLE && ret != MMU_ITLB_MULTIPLE) {
+           env->pteh = (env->pteh & PTEH_ASID_MASK) |
+                   (address & PTEH_VPN_MASK);
+       }
        switch (ret) {
        case MMU_ITLB_MISS:
        case MMU_DTLB_MISS_READ:
-- 
1.7.3.5




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