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target/arm: Don't do raw writes for PMINTENCLR

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Raw writes to this register when in KVM mode can cause interrupts to be
raised (even when the PMU is disabled). Because the underlying state is
already aliased to PMINTENSET (which already provides raw write
functions), we can safely disable raw accesses to PMINTENCLR entirely.

Backports commit 887c0f1544991f567543b7c214aa11ab0cea0a29 from qemu
This commit is contained in:
Aaron Lindsay 2021-02-25 23:27:38 -05:00 committed by Lioncash
parent f403c1f54f
commit e532ce610e
1 changed files with 2 additions and 2 deletions
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4
qemu/target/arm/helper.c
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@ -1971,13 +1971,13 @@ static const ARMCPRegInfo v7_cp_reginfo[] = {
.resetvalue = 0x0 },
{ .name = "PMINTENCLR", .cp = 15, .crn = 9, .crm = 14, .opc1 = 0, .opc2 = 2,
.access = PL1_RW, .accessfn = access_tpm,
.type = ARM_CP_ALIAS | ARM_CP_IO,
.type = ARM_CP_ALIAS | ARM_CP_IO | ARM_CP_NO_RAW,
.fieldoffset = offsetof(CPUARMState, cp15.c9_pminten),
.writefn = pmintenclr_write, },
{ .name = "PMINTENCLR_EL1", .state = ARM_CP_STATE_AA64,
.opc0 = 3, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 2,
.access = PL1_RW, .accessfn = access_tpm,
.type = ARM_CP_ALIAS | ARM_CP_IO,
.type = ARM_CP_ALIAS | ARM_CP_IO | ARM_CP_NO_RAW,
.fieldoffset = offsetof(CPUARMState, cp15.c9_pminten),
.writefn = pmintenclr_write },
{ .name = "CCSIDR", .state = ARM_CP_STATE_BOTH,