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authorPeter Maydell <peter.maydell@linaro.org>2018-08-20 11:24:32 +0100
committerPeter Maydell <peter.maydell@linaro.org>2018-08-20 11:24:32 +0100
commit68e78e332cb1c3f8b0317a0443acb2b5e190f0dd (patch)
tree14bf589d9c738f0bbce5d7bf43b3bd91afa867a8 /target/arm/helper.c
parentcba517c31e7df8932c4473c477a0f01d8a0adc48 (diff)
downloadfocaccia-qemu-68e78e332cb1c3f8b0317a0443acb2b5e190f0dd.tar.gz
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target/arm: Implement ESR_EL2/HSR for AArch32 and no-EL2
The AArch32 HSR is the equivalent of AArch64 ESR_EL2;
we can implement it by marking our existing ESR_EL2 regdef
as STATE_BOTH. It also needs to be "RES0 from EL3 if
EL2 not implemented", so add the missing stanza to
el3_no_el2_cp_reginfo.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Message-id: 20180814124254.5229-8-peter.maydell@linaro.org
Diffstat (limited to 'target/arm/helper.c')
-rw-r--r--target/arm/helper.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/target/arm/helper.c b/target/arm/helper.c
index bb08bd4e4b..c9bce1efcb 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -3759,6 +3759,10 @@ static const ARMCPRegInfo el3_no_el2_cp_reginfo[] = {
       .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 0,
       .access = PL2_RW,
       .readfn = arm_cp_read_zero, .writefn = arm_cp_write_ignore },
+    { .name = "ESR_EL2", .state = ARM_CP_STATE_BOTH,
+      .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 2, .opc2 = 0,
+      .access = PL2_RW,
+      .type = ARM_CP_CONST, .resetvalue = 0 },
     { .name = "CPTR_EL2", .state = ARM_CP_STATE_BOTH,
       .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 2,
       .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
@@ -3895,7 +3899,7 @@ static const ARMCPRegInfo el2_cp_reginfo[] = {
       .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 0, .opc2 = 1,
       .access = PL2_RW,
       .fieldoffset = offsetof(CPUARMState, elr_el[2]) },
-    { .name = "ESR_EL2", .state = ARM_CP_STATE_AA64,
+    { .name = "ESR_EL2", .state = ARM_CP_STATE_BOTH,
       .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 2, .opc2 = 0,
       .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.esr_el[2]) },
     { .name = "FAR_EL2", .state = ARM_CP_STATE_BOTH,