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Use PSCI v0.2 compatible string when KVM or TCG provides it

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If we have PSCI v0.2 emulation available for KVM ARM/ARM64 or TCG then
we need to provide PSCI v0.2 compatible string via generated DTB.

Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Signed-off-by: Anup Patel <anup.patel@linaro.org>
Reviewed-by: Rob Herring <rob.herring@linaro.org>
Message-id: 1402901605-24551-9-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 18:06:27 +01:00 committed by Peter Maydell
parent dd032e3487
commit 06955739a2
1 changed files with 15 additions and 1 deletions
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16
hw/arm/virt.c
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@ -180,10 +180,23 @@ static void create_fdt(VirtBoardInfo *vbi)
"clk24mhz");
qemu_fdt_setprop_cell(fdt, "/apb-pclk", "phandle", vbi->clock_phandle);
}
static void fdt_add_psci_node(const VirtBoardInfo *vbi)
{
void *fdt = vbi->fdt;
ARMCPU *armcpu = ARM_CPU(qemu_get_cpu(0));
/* No PSCI for TCG yet */
if (kvm_enabled()) {
qemu_fdt_add_subnode(fdt, "/psci");
qemu_fdt_setprop_string(fdt, "/psci", "compatible", "arm,psci");
if (armcpu->psci_version == 2) {
const char comp[] = "arm,psci-0.2\0arm,psci";
qemu_fdt_setprop(fdt, "/psci", "compatible", comp, sizeof(comp));
} else {
qemu_fdt_setprop_string(fdt, "/psci", "compatible", "arm,psci");
}
qemu_fdt_setprop_string(fdt, "/psci", "method", "hvc");
qemu_fdt_setprop_cell(fdt, "/psci", "cpu_suspend",
PSCI_FN_CPU_SUSPEND);
@ -446,6 +459,7 @@ static void machvirt_init(MachineState *machine)
object_property_set_bool(cpuobj, true, "realized", NULL);
}
fdt_add_cpu_nodes(vbi);
fdt_add_psci_node(vbi);
memory_region_init_ram(ram, NULL, "mach-virt.ram", machine->ram_size);
vmstate_register_ram_global(ram);