diff options
| author | Pranavkumar Sawargaonkar | 2014-06-19 19:06:27 +0200 |
|---|---|---|
| committer | Peter Maydell | 2014-06-19 19:33:05 +0200 |
| commit | 06955739a283ecaf9e2c7658cd9d471e9967cac4 (patch) | |
| tree | 755dffbf1436b84047339443ada48455a2eb7ad8 /hw/arm | |
| parent | target-arm: Introduce per-CPU field for PSCI version (diff) | |
| download | qemu-06955739a283ecaf9e2c7658cd9d471e9967cac4.tar.gz qemu-06955739a283ecaf9e2c7658cd9d471e9967cac4.tar.xz qemu-06955739a283ecaf9e2c7658cd9d471e9967cac4.zip | |
Use PSCI v0.2 compatible string when KVM or TCG provides it
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>
Diffstat (limited to 'hw/arm')
| -rw-r--r-- | hw/arm/virt.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 3b55a4bf7d..72fe030e93 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -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); |