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authorRichard Henderson <richard.henderson@linaro.org>2022-08-22 08:26:46 -0700
committerPeter Maydell <peter.maydell@linaro.org>2022-09-22 16:38:27 +0100
commitdbf2a71ad62b99286adf6cdc6d6c12cdb26306a9 (patch)
tree4ff71d75f052a6d6960d347cc5f99e1d2bd3efe5
parent652c750ee5c57ba3bbaf32e5ebb77fbbc8f68385 (diff)
target/arm: Add is_secure parameter to v8m_security_lookup
Remove the use of regime_is_secure from v8m_security_lookup, passing the new parameter to the lookup instead. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220822152741.1617527-12-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r--target/arm/internals.h2
-rw-r--r--target/arm/m_helper.c9
-rw-r--r--target/arm/ptw.c9
3 files changed, 12 insertions, 8 deletions
diff --git a/target/arm/internals.h b/target/arm/internals.h
index f8b22d3ab0..e97f5c3d47 100644
--- a/target/arm/internals.h
+++ b/target/arm/internals.h
@@ -1123,7 +1123,7 @@ typedef struct V8M_SAttributes {
void v8m_security_lookup(CPUARMState *env, uint32_t address,
MMUAccessType access_type, ARMMMUIdx mmu_idx,
- V8M_SAttributes *sattrs);
+ bool secure, V8M_SAttributes *sattrs);
/* Cacheability and shareability attributes for a memory access */
typedef struct ARMCacheAttrs {
diff --git a/target/arm/m_helper.c b/target/arm/m_helper.c
index 01263990dc..45fbf19559 100644
--- a/target/arm/m_helper.c
+++ b/target/arm/m_helper.c
@@ -689,7 +689,8 @@ static bool arm_v7m_load_vector(ARMCPU *cpu, int exc, bool targets_secure,
if (arm_feature(env, ARM_FEATURE_M_SECURITY)) {
V8M_SAttributes sattrs = {};
- v8m_security_lookup(env, addr, MMU_DATA_LOAD, mmu_idx, &sattrs);
+ v8m_security_lookup(env, addr, MMU_DATA_LOAD, mmu_idx,
+ targets_secure, &sattrs);
if (sattrs.ns) {
attrs.secure = false;
} else if (!targets_secure) {
@@ -2002,7 +2003,8 @@ static bool v7m_read_half_insn(ARMCPU *cpu, ARMMMUIdx mmu_idx,
ARMMMUFaultInfo fi = {};
MemTxResult txres;
- v8m_security_lookup(env, addr, MMU_INST_FETCH, mmu_idx, &sattrs);
+ v8m_security_lookup(env, addr, MMU_INST_FETCH, mmu_idx,
+ regime_is_secure(env, mmu_idx), &sattrs);
if (!sattrs.nsc || sattrs.ns) {
/*
* This must be the second half of the insn, and it straddles a
@@ -2826,7 +2828,8 @@ uint32_t HELPER(v7m_tt)(CPUARMState *env, uint32_t addr, uint32_t op)
}
if (env->v7m.secure) {
- v8m_security_lookup(env, addr, MMU_DATA_LOAD, mmu_idx, &sattrs);
+ v8m_security_lookup(env, addr, MMU_DATA_LOAD, mmu_idx,
+ targetsec, &sattrs);
nsr = sattrs.ns && r;
nsrw = sattrs.ns && rw;
} else {
diff --git a/target/arm/ptw.c b/target/arm/ptw.c
index bb3c709f8f..74d2f63359 100644
--- a/target/arm/ptw.c
+++ b/target/arm/ptw.c
@@ -1857,8 +1857,8 @@ static bool v8m_is_sau_exempt(CPUARMState *env,
}
void v8m_security_lookup(CPUARMState *env, uint32_t address,
- MMUAccessType access_type, ARMMMUIdx mmu_idx,
- V8M_SAttributes *sattrs)
+ MMUAccessType access_type, ARMMMUIdx mmu_idx,
+ bool is_secure, V8M_SAttributes *sattrs)
{
/*
* Look up the security attributes for this address. Compare the
@@ -1886,7 +1886,7 @@ void v8m_security_lookup(CPUARMState *env, uint32_t address,
}
if (idau_exempt || v8m_is_sau_exempt(env, address, access_type)) {
- sattrs->ns = !regime_is_secure(env, mmu_idx);
+ sattrs->ns = !is_secure;
return;
}
@@ -1975,7 +1975,8 @@ static bool get_phys_addr_pmsav8(CPUARMState *env, uint32_t address,
bool ret;
if (arm_feature(env, ARM_FEATURE_M_SECURITY)) {
- v8m_security_lookup(env, address, access_type, mmu_idx, &sattrs);
+ v8m_security_lookup(env, address, access_type, mmu_idx,
+ secure, &sattrs);
if (access_type == MMU_INST_FETCH) {
/*
* Instruction fetches always use the MMU bank and the