From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: philmd@linaro.org, qemu-arm@nongnu.org, peter.maydell@linaro.org
Subject: [PATCH] target/arm: Two fixes for secure ptw
Date: Wed, 2 Nov 2022 16:47:06 +1100 [thread overview]
Message-ID: <20221102054706.1015830-1-richard.henderson@linaro.org> (raw)
Reversed the sense of non-secure in get_phys_addr_lpae,
and failed to initialize attrs.secure for ARMMMUIdx_Phys_S.
Fixes: 48da29e4 ("target/arm: Add ptw_idx to S1Translate")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1293
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/ptw.c | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/target/arm/ptw.c b/target/arm/ptw.c
index 58a7bbda50..df3573f150 100644
--- a/target/arm/ptw.c
+++ b/target/arm/ptw.c
@@ -1357,7 +1357,7 @@ static bool get_phys_addr_lpae(CPUARMState *env, S1Translate *ptw,
descaddr |= (address >> (stride * (4 - level))) & indexmask;
descaddr &= ~7ULL;
nstable = extract32(tableattrs, 4, 1);
- if (!nstable) {
+ if (nstable) {
/*
* Stage2_S -> Stage2 or Phys_S -> Phys_NS
* Assert that the non-secure idx are even, and relative order.
@@ -2671,6 +2671,13 @@ static bool get_phys_addr_with_struct(CPUARMState *env, S1Translate *ptw,
bool is_secure = ptw->in_secure;
ARMMMUIdx s1_mmu_idx;
+ /*
+ * The page table entries may downgrade secure to non-secure, but
+ * cannot upgrade an non-secure translation regime's attributes
+ * to secure.
+ */
+ result->f.attrs.secure = is_secure;
+
switch (mmu_idx) {
case ARMMMUIdx_Phys_S:
case ARMMMUIdx_Phys_NS:
@@ -2712,12 +2719,6 @@ static bool get_phys_addr_with_struct(CPUARMState *env, S1Translate *ptw,
break;
}
- /*
- * The page table entries may downgrade secure to non-secure, but
- * cannot upgrade an non-secure translation regime's attributes
- * to secure.
- */
- result->f.attrs.secure = is_secure;
result->f.attrs.user = regime_is_user(env, mmu_idx);
/*
--
2.34.1
next reply other threads:[~2022-11-02 5:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-02 5:47 Richard Henderson [this message]
2022-11-02 9:02 ` [PATCH] target/arm: Two fixes for secure ptw Philippe Mathieu-Daudé
2022-11-03 13:19 ` Peter Maydell
2022-11-03 13:23 ` Peter Maydell
2022-11-03 20:30 ` Richard Henderson
2022-11-04 10:58 ` Peter Maydell
2022-11-04 22:06 ` Richard Henderson
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