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target-arm: Introduce per-CPU field for PSCI version

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We require to know the PSCI version available to given CPU at
potentially many places. Currently, we need to know PSCI version
when generating DTB for virt machine.

This patch introduce per-CPU 32bit field representing the PSCI
version available to the CPU. The encoding of this 32bit field
is same as described in PSCI v0.2 spec.

Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Signed-off-by: Anup Patel <anup.patel@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1402901605-24551-8-git-send-email-pranavkumar@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Pranavkumar Sawargaonkar 2014-06-19 18:06:26 +01:00 • committed by Peter Maydell
parent 73542cf690
commit dd032e3487
4 changed files with 9 additions and 0 deletions
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1
target-arm/cpu.c
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@ -260,6 +260,7 @@ static void arm_cpu_initfn(Object *obj)
* picky DTB consumer will also provide a helpful error message.
*/
cpu->dtb_compatible = "qemu,unknown";
cpu->psci_version = 1; /* By default assume PSCI v0.1 */
cpu->kvm_target = QEMU_KVM_ARM_TARGET_NONE;
if (tcg_enabled() && !inited) {