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target/arm: Honor the HCR_EL2.TSW bit

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These bits trap EL1 access to set/way cache maintenance insns.

Backports commit 1803d2713b29d85031cc964d545036bda9880f26 from qemu
This commit is contained in:
Richard Henderson 2020-03-22 02:40:08 -04:00 committed by Lioncash
parent 7ee27e5d93
commit d252af2069
1 changed files with 16 additions and 6 deletions
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22
qemu/target/arm/helper.c
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@ -383,6 +383,16 @@ static CPAccessResult access_tvm_trvm(CPUARMState *env, const ARMCPRegInfo *ri,
return CP_ACCESS_OK;
}
/* Check for traps from EL1 due to HCR_EL2.TSW. */
static CPAccessResult access_tsw(CPUARMState *env, const ARMCPRegInfo *ri,
bool isread)
{
if (arm_current_el(env) == 1 && (arm_hcr_el2_eff(env) & HCR_TSW)) {
return CP_ACCESS_TRAP_EL2;
}
return CP_ACCESS_OK;
}
static void dacr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
{
ARMCPU *cpu = env_archcpu(env);
@ -4512,14 +4522,14 @@ static const ARMCPRegInfo v8_cp_reginfo[] = {
.access = PL1_W, .type = ARM_CP_NOP },
{ .name = "DC_ISW", .state = ARM_CP_STATE_AA64,
.opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 2,
.access = PL1_W, .type = ARM_CP_NOP },
.access = PL1_W, .accessfn = access_tsw, .type = ARM_CP_NOP },
{ .name = "DC_CVAC", .state = ARM_CP_STATE_AA64,
.opc0 = 1, .opc1 = 3, .crn = 7, .crm = 10, .opc2 = 1,
.access = PL0_W, .type = ARM_CP_NOP,
.accessfn = aa64_cacheop_access },
{ .name = "DC_CSW", .state = ARM_CP_STATE_AA64,
.opc0 = 1, .opc1 = 0, .crn = 7, .crm = 10, .opc2 = 2,
.access = PL1_W, .type = ARM_CP_NOP },
.access = PL1_W, .accessfn = access_tsw, .type = ARM_CP_NOP },
{ .name = "DC_CVAU", .state = ARM_CP_STATE_AA64,
.opc0 = 1, .opc1 = 3, .crn = 7, .crm = 11, .opc2 = 1,
.access = PL0_W, .type = ARM_CP_NOP,
@ -4530,7 +4540,7 @@ static const ARMCPRegInfo v8_cp_reginfo[] = {
.accessfn = aa64_cacheop_access },
{ .name = "DC_CISW", .state = ARM_CP_STATE_AA64,
.opc0 = 1, .opc1 = 0, .crn = 7, .crm = 14, .opc2 = 2,
.access = PL1_W, .type = ARM_CP_NOP },
.access = PL1_W, .accessfn = access_tsw, .type = ARM_CP_NOP },
/* TLBI operations */
{ .name = "TLBI_VMALLE1IS", .state = ARM_CP_STATE_AA64,
.opc0 = 1, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 0,
@ -4711,17 +4721,17 @@ static const ARMCPRegInfo v8_cp_reginfo[] = {
{ .name = "DCIMVAC", .cp = 15, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 1,
.type = ARM_CP_NOP, .access = PL1_W },
{ .name = "DCISW", .cp = 15, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 2,
.type = ARM_CP_NOP, .access = PL1_W },
.type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw },
{ .name = "DCCMVAC", .cp = 15, .opc1 = 0, .crn = 7, .crm = 10, .opc2 = 1,
.type = ARM_CP_NOP, .access = PL1_W },
{ .name = "DCCSW", .cp = 15, .opc1 = 0, .crn = 7, .crm = 10, .opc2 = 2,
.type = ARM_CP_NOP, .access = PL1_W },
.type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw },
{ .name = "DCCMVAU", .cp = 15, .opc1 = 0, .crn = 7, .crm = 11, .opc2 = 1,
.type = ARM_CP_NOP, .access = PL1_W },
{ .name = "DCCIMVAC", .cp = 15, .opc1 = 0, .crn = 7, .crm = 14, .opc2 = 1,
.type = ARM_CP_NOP, .access = PL1_W },
{ .name = "DCCISW", .cp = 15, .opc1 = 0, .crn = 7, .crm = 14, .opc2 = 2,
.type = ARM_CP_NOP, .access = PL1_W },
.type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw },
/* MMU Domain access control / MPU write buffer control */
{ .name = "DACR", .cp = 15, .opc1 = 0, .crn = 3, .crm = 0, .opc2 = 0,
.access = PL1_RW, .accessfn = access_tvm_trvm, .resetvalue = 0,