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target-arm: Enable vPMU support under TCG mode

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This patch contains several fixes to enable vPMU under TCG mode. It
first removes the checking of kvm_enabled() while unsetting
ARM_FEATURE_PMU. With it, the .pmu option can be used to turn on/off vPMU
under TCG mode. Secondly the PMU node of DT table is now created under TCG.
The last fix is to disable the masking of PMUver field of ID_AA64DFR0_EL1.

Signed-off-by: Wei Huang <wei@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1486504171-26807-5-git-send-email-wei@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Wei Huang 2017-02-10 17:40:28 +00:00 • committed by Peter Maydell
parent e6ec54571e
commit d6f02ce3b8
3 changed files with 3 additions and 8 deletions
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2
hw/arm/virt.c
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@ -471,7 +471,7 @@ static void fdt_add_pmu_nodes(const VirtMachineState *vms)
CPU_FOREACH(cpu) {
armcpu = ARM_CPU(cpu);
if (!arm_feature(&armcpu->env, ARM_FEATURE_PMU) ||
!kvm_arm_pmu_create(cpu, PPI(VIRTUAL_PMU_IRQ))) {
(kvm_enabled() && !kvm_arm_pmu_create(cpu, PPI(VIRTUAL_PMU_IRQ)))) {
return;
}
}