target-arm: Make various system registers visible to EL3

The AArch64 system registers DACR32_EL2, IFSR32_EL2, SPSR_IRQ,
SPSR_ABT, SPSR_UND and SPSR_FIQ are visible and fully functional from
EL3 even if the CPU has no EL2 (unlike some others which are RES0
from EL3 in that configuration).  Move them from el2_cp_reginfo[] to
v8_cp_reginfo[] so they are always present.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Sergey Fedorov <serge.fdrv@gmail.com>
Message-id: 1453227802-9991-1-git-send-email-peter.maydell@linaro.org

diff --git a/target-arm/helper.c b/target-arm/helper.c
index ae024869d0e0fc36319490e53129432db0366f63..b631b83089702b428cd67b81c2fe0b94fa4b106e 100644 (file)
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -3167,6 +3167,35 @@ static const ARMCPRegInfo v8_cp_reginfo[] = {
       .type = ARM_CP_ALIAS,
       .fieldoffset = offsetof(CPUARMState, vfp.xregs[ARM_VFP_FPEXC]),
       .access = PL2_RW, .accessfn = fpexc32_access },
+    { .name = "DACR32_EL2", .state = ARM_CP_STATE_AA64,
+      .opc0 = 3, .opc1 = 4, .crn = 3, .crm = 0, .opc2 = 0,
+      .access = PL2_RW, .resetvalue = 0,
+      .writefn = dacr_write, .raw_writefn = raw_write,
+      .fieldoffset = offsetof(CPUARMState, cp15.dacr32_el2) },
+    { .name = "IFSR32_EL2", .state = ARM_CP_STATE_AA64,
+      .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 0, .opc2 = 1,
+      .access = PL2_RW, .resetvalue = 0,
+      .fieldoffset = offsetof(CPUARMState, cp15.ifsr32_el2) },
+    { .name = "SPSR_IRQ", .state = ARM_CP_STATE_AA64,
+      .type = ARM_CP_ALIAS,
+      .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 3, .opc2 = 0,
+      .access = PL2_RW,
+      .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_IRQ]) },
+    { .name = "SPSR_ABT", .state = ARM_CP_STATE_AA64,
+      .type = ARM_CP_ALIAS,
+      .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 3, .opc2 = 1,
+      .access = PL2_RW,
+      .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_ABT]) },
+    { .name = "SPSR_UND", .state = ARM_CP_STATE_AA64,
+      .type = ARM_CP_ALIAS,
+      .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 3, .opc2 = 2,
+      .access = PL2_RW,
+      .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_UND]) },
+    { .name = "SPSR_FIQ", .state = ARM_CP_STATE_AA64,
+      .type = ARM_CP_ALIAS,
+      .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 3, .opc2 = 3,
+      .access = PL2_RW,
+      .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_FIQ]) },
     REGINFO_SENTINEL
 };
 
@@ -3294,11 +3323,6 @@ static const ARMCPRegInfo el2_cp_reginfo[] = {
       .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 0,
       .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.hcr_el2),
       .writefn = hcr_write },
-    { .name = "DACR32_EL2", .state = ARM_CP_STATE_AA64,
-      .opc0 = 3, .opc1 = 4, .crn = 3, .crm = 0, .opc2 = 0,
-      .access = PL2_RW, .resetvalue = 0,
-      .writefn = dacr_write, .raw_writefn = raw_write,
-      .fieldoffset = offsetof(CPUARMState, cp15.dacr32_el2) },
     { .name = "ELR_EL2", .state = ARM_CP_STATE_AA64,
       .type = ARM_CP_ALIAS,
       .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 0, .opc2 = 1,
@@ -3308,10 +3332,6 @@ static const ARMCPRegInfo el2_cp_reginfo[] = {
       .type = ARM_CP_ALIAS,
       .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 2, .opc2 = 0,
       .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.esr_el[2]) },
-    { .name = "IFSR32_EL2", .state = ARM_CP_STATE_AA64,
-      .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 0, .opc2 = 1,
-      .access = PL2_RW, .resetvalue = 0,
-      .fieldoffset = offsetof(CPUARMState, cp15.ifsr32_el2) },
     { .name = "FAR_EL2", .state = ARM_CP_STATE_AA64,
       .opc0 = 3, .opc1 = 4, .crn = 6, .crm = 0, .opc2 = 0,
       .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.far_el[2]) },
@@ -3320,26 +3340,6 @@ static const ARMCPRegInfo el2_cp_reginfo[] = {
       .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 0, .opc2 = 0,
       .access = PL2_RW,
       .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_HYP]) },
-    { .name = "SPSR_IRQ", .state = ARM_CP_STATE_AA64,
-      .type = ARM_CP_ALIAS,
-      .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 3, .opc2 = 0,
-      .access = PL2_RW,
-      .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_IRQ]) },
-    { .name = "SPSR_ABT", .state = ARM_CP_STATE_AA64,
-      .type = ARM_CP_ALIAS,
-      .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 3, .opc2 = 1,
-      .access = PL2_RW,
-      .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_ABT]) },
-    { .name = "SPSR_UND", .state = ARM_CP_STATE_AA64,
-      .type = ARM_CP_ALIAS,
-      .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 3, .opc2 = 2,
-      .access = PL2_RW,
-      .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_UND]) },
-    { .name = "SPSR_FIQ", .state = ARM_CP_STATE_AA64,
-      .type = ARM_CP_ALIAS,
-      .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 3, .opc2 = 3,
-      .access = PL2_RW,
-      .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_FIQ]) },
     { .name = "VBAR_EL2", .state = ARM_CP_STATE_AA64,
       .opc0 = 3, .opc1 = 4, .crn = 12, .crm = 0, .opc2 = 0,
       .access = PL2_RW, .writefn = vbar_write,