According to the SMMU architecture specification (ARM IHI 0070 F.b),
in “3.4 Address sizes”
The address output from the translation causes a stage 1 Address Size
fault if it exceeds the range of the effective IPA size for the given CD.
However, this check was missing.
There is already a similar check for stage-2 against effective PA.
Reviewed-by: Eric Auger <eric.au...@redhat.com>
Signed-off-by: Mostafa Saleh <smost...@google.com>
---
hw/arm/smmu-common.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/hw/arm/smmu-common.c b/hw/arm/smmu-common.c
index 1ce706bf94..eb2356bc35 100644
--- a/hw/arm/smmu-common.c
+++ b/hw/arm/smmu-common.c
@@ -381,6 +381,16 @@ static int smmu_ptw_64_s1(SMMUTransCfg *cfg,
goto error;
}
+ /*
+ * The address output from the translation causes a stage 1 Address
+ * Size fault if it exceeds the range of the effective IPA size for
+ * the given CD.
+ */
+ if (gpa >= (1ULL << cfg->oas)) {
+ info->type = SMMU_PTW_ERR_ADDR_SIZE;
+ goto error;
+ }
+
tlbe->entry.translated_addr = gpa;
tlbe->entry.iova = iova & ~mask;
tlbe->entry.addr_mask = mask;
--
2.45.2.803.g4e1b14247a-goog
