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target-arm: Implement RVBAR register

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Implement the AArch64 RVBAR register, which indicates the reset
address. Since the reset address is implementation defined and
usually configurable by setting config signals in hardware, we
also provide a QOM property so it can be set at board level if
necessary.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
This commit is contained in:
Peter Maydell 2014-04-15 19:18:48 +01:00
parent 19525524a7
commit 3933443e38
3 changed files with 16 additions and 0 deletions
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6
target-arm/helper.c
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@ -2295,6 +2295,12 @@ void register_cp_regs_for_features(ARMCPU *cpu)
.resetvalue = cpu->mvfr2 },
REGINFO_SENTINEL
};
ARMCPRegInfo rvbar = {
.name = "RVBAR_EL1", .state = ARM_CP_STATE_AA64,
.opc0 = 3, .opc1 = 0, .crn = 12, .crm = 0, .opc2 = 2,
.type = ARM_CP_CONST, .access = PL1_R, .resetvalue = cpu->rvbar
};
define_one_arm_cp_reg(cpu, &rvbar);
define_arm_cp_regs(cpu, v8_idregs);
define_arm_cp_regs(cpu, v8_cp_reginfo);
define_aarch64_debug_regs(cpu);