mirror of https://gitlab.com/qemu-project/qemu
target/arm: Convert get_phys_addr_pmsav8() to not return FSC values
Make get_phys_addr_pmsav8() return a fault type in the ARMMMUFaultInfo structure, which we convert to the FSC at the callsite. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Tested-by: Stefano Stabellini <sstabellini@kernel.org> Message-id: 1512503192-2239-9-git-send-email-peter.maydell@linaro.org
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@ -9364,7 +9364,7 @@ static void v8m_security_lookup(CPUARMState *env, uint32_t address,
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static bool pmsav8_mpu_lookup(CPUARMState *env, uint32_t address,
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static bool pmsav8_mpu_lookup(CPUARMState *env, uint32_t address,
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MMUAccessType access_type, ARMMMUIdx mmu_idx,
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MMUAccessType access_type, ARMMMUIdx mmu_idx,
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hwaddr *phys_ptr, MemTxAttrs *txattrs,
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hwaddr *phys_ptr, MemTxAttrs *txattrs,
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int *prot, uint32_t *fsr, uint32_t *mregion)
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int *prot, ARMMMUFaultInfo *fi, uint32_t *mregion)
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{
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{
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/* Perform a PMSAv8 MPU lookup (without also doing the SAU check
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/* Perform a PMSAv8 MPU lookup (without also doing the SAU check
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* that a full phys-to-virt translation does).
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* that a full phys-to-virt translation does).
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@ -9420,7 +9420,8 @@ static bool pmsav8_mpu_lookup(CPUARMState *env, uint32_t address,
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/* Multiple regions match -- always a failure (unlike
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/* Multiple regions match -- always a failure (unlike
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* PMSAv7 where highest-numbered-region wins)
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* PMSAv7 where highest-numbered-region wins)
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*/
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*/
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*fsr = 0x00d; /* permission fault */
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fi->type = ARMFault_Permission;
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fi->level = 1;
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return true;
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return true;
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}
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}
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@ -9448,7 +9449,7 @@ static bool pmsav8_mpu_lookup(CPUARMState *env, uint32_t address,
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if (!hit) {
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if (!hit) {
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/* background fault */
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/* background fault */
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*fsr = 0;
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fi->type = ARMFault_Background;
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return true;
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return true;
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}
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}
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@ -9476,7 +9477,8 @@ static bool pmsav8_mpu_lookup(CPUARMState *env, uint32_t address,
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}
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}
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}
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}
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*fsr = 0x00d; /* Permission fault */
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fi->type = ARMFault_Permission;
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fi->level = 1;
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return !(*prot & (1 << access_type));
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return !(*prot & (1 << access_type));
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}
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}
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@ -9484,7 +9486,7 @@ static bool pmsav8_mpu_lookup(CPUARMState *env, uint32_t address,
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static bool get_phys_addr_pmsav8(CPUARMState *env, uint32_t address,
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static bool get_phys_addr_pmsav8(CPUARMState *env, uint32_t address,
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MMUAccessType access_type, ARMMMUIdx mmu_idx,
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MMUAccessType access_type, ARMMMUIdx mmu_idx,
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hwaddr *phys_ptr, MemTxAttrs *txattrs,
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hwaddr *phys_ptr, MemTxAttrs *txattrs,
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int *prot, uint32_t *fsr)
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int *prot, ARMMMUFaultInfo *fi)
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{
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{
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uint32_t secure = regime_is_secure(env, mmu_idx);
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uint32_t secure = regime_is_secure(env, mmu_idx);
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V8M_SAttributes sattrs = {};
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V8M_SAttributes sattrs = {};
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@ -9510,7 +9512,11 @@ static bool get_phys_addr_pmsav8(CPUARMState *env, uint32_t address,
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* (including possibly emulating an SG instruction).
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* (including possibly emulating an SG instruction).
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*/
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*/
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if (sattrs.ns != !secure) {
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if (sattrs.ns != !secure) {
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*fsr = sattrs.nsc ? M_FAKE_FSR_NSC_EXEC : M_FAKE_FSR_SFAULT;
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if (sattrs.nsc) {
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fi->type = ARMFault_QEMU_NSCExec;
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} else {
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fi->type = ARMFault_QEMU_SFault;
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}
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*phys_ptr = address;
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*phys_ptr = address;
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*prot = 0;
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*prot = 0;
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return true;
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return true;
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@ -9532,7 +9538,7 @@ static bool get_phys_addr_pmsav8(CPUARMState *env, uint32_t address,
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* If we added it we would need to do so as a special case
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* If we added it we would need to do so as a special case
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* for M_FAKE_FSR_SFAULT in arm_v7m_cpu_do_interrupt().
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* for M_FAKE_FSR_SFAULT in arm_v7m_cpu_do_interrupt().
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*/
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*/
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*fsr = M_FAKE_FSR_SFAULT;
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fi->type = ARMFault_QEMU_SFault;
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*phys_ptr = address;
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*phys_ptr = address;
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*prot = 0;
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*prot = 0;
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return true;
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return true;
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@ -9541,7 +9547,7 @@ static bool get_phys_addr_pmsav8(CPUARMState *env, uint32_t address,
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}
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}
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return pmsav8_mpu_lookup(env, address, access_type, mmu_idx, phys_ptr,
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return pmsav8_mpu_lookup(env, address, access_type, mmu_idx, phys_ptr,
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txattrs, prot, fsr, NULL);
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txattrs, prot, fi, NULL);
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}
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}
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static bool get_phys_addr_pmsav5(CPUARMState *env, uint32_t address,
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static bool get_phys_addr_pmsav5(CPUARMState *env, uint32_t address,
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@ -9819,7 +9825,8 @@ static bool get_phys_addr(CPUARMState *env, target_ulong address,
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if (arm_feature(env, ARM_FEATURE_V8)) {
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if (arm_feature(env, ARM_FEATURE_V8)) {
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/* PMSAv8 */
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/* PMSAv8 */
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ret = get_phys_addr_pmsav8(env, address, access_type, mmu_idx,
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ret = get_phys_addr_pmsav8(env, address, access_type, mmu_idx,
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phys_ptr, attrs, prot, fsr);
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phys_ptr, attrs, prot, fi);
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*fsr = arm_fi_to_sfsc(fi);
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} else if (arm_feature(env, ARM_FEATURE_V7)) {
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} else if (arm_feature(env, ARM_FEATURE_V7)) {
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/* PMSAv7 */
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/* PMSAv7 */
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ret = get_phys_addr_pmsav7(env, address, access_type, mmu_idx,
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ret = get_phys_addr_pmsav7(env, address, access_type, mmu_idx,
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@ -10180,9 +10187,9 @@ uint32_t HELPER(v7m_tt)(CPUARMState *env, uint32_t addr, uint32_t op)
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uint32_t tt_resp;
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uint32_t tt_resp;
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bool r, rw, nsr, nsrw, mrvalid;
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bool r, rw, nsr, nsrw, mrvalid;
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int prot;
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int prot;
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ARMMMUFaultInfo fi = {};
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MemTxAttrs attrs = {};
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MemTxAttrs attrs = {};
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hwaddr phys_addr;
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hwaddr phys_addr;
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uint32_t fsr;
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ARMMMUIdx mmu_idx;
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ARMMMUIdx mmu_idx;
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uint32_t mregion;
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uint32_t mregion;
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bool targetpriv;
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bool targetpriv;
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@ -10216,7 +10223,7 @@ uint32_t HELPER(v7m_tt)(CPUARMState *env, uint32_t addr, uint32_t op)
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if (arm_current_el(env) != 0 || alt) {
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if (arm_current_el(env) != 0 || alt) {
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/* We can ignore the return value as prot is always set */
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/* We can ignore the return value as prot is always set */
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pmsav8_mpu_lookup(env, addr, MMU_DATA_LOAD, mmu_idx,
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pmsav8_mpu_lookup(env, addr, MMU_DATA_LOAD, mmu_idx,
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&phys_addr, &attrs, &prot, &fsr, &mregion);
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&phys_addr, &attrs, &prot, &fi, &mregion);
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if (mregion == -1) {
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if (mregion == -1) {
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mrvalid = false;
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mrvalid = false;
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mregion = 0;
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mregion = 0;
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