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[Qemu-devel] [RFC PATCH V4 4/6] hw/arm/virt: Use PSCI v0.2 compatible wh
From: |
Pranavkumar Sawargaonkar |
Subject: |
[Qemu-devel] [RFC PATCH V4 4/6] hw/arm/virt: Use PSCI v0.2 compatible when kernel supports it |
Date: |
Mon, 5 May 2014 14:27:12 +0530 |
If we have in-kernel emulation of PSCI v0.2 for KVM ARM/ARM64 then
we enable PSCI v0.2 for each VCPU at the time of VCPU init hence we
need to provide PSCI v0.2 compatible string via generated DTB.
This patch updates generated DTB to have PSCI v0.2 compatible string
when we have in-kernel emulation PSCI v0.2 for KVM ARM/ARM64.
Signed-off-by: Pranavkumar Sawargaonkar <address@hidden>
Signed-off-by: Anup Patel <address@hidden>
---
hw/arm/virt.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 2bbc931..e4ae8ba 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -185,13 +185,17 @@ static void create_fdt(VirtBoardInfo *vbi)
/* No PSCI for TCG yet */
if (kvm_enabled()) {
qemu_fdt_add_subnode(fdt, "/psci");
- 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",
+ if (kvm_check_extension(kvm_state, KVM_CAP_ARM_PSCI_0_2)) {
+ qemu_fdt_setprop_string(fdt, "/psci", "compatible",
"arm,psci-0.2");
+ } else {
+ qemu_fdt_setprop_string(fdt, "/psci", "compatible", "arm,psci");
+ qemu_fdt_setprop_cell(fdt, "/psci", "cpu_suspend",
PSCI_FN_CPU_SUSPEND);
- qemu_fdt_setprop_cell(fdt, "/psci", "cpu_off", PSCI_FN_CPU_OFF);
- qemu_fdt_setprop_cell(fdt, "/psci", "cpu_on", PSCI_FN_CPU_ON);
- qemu_fdt_setprop_cell(fdt, "/psci", "migrate", PSCI_FN_MIGRATE);
+ qemu_fdt_setprop_cell(fdt, "/psci", "cpu_off", PSCI_FN_CPU_OFF);
+ qemu_fdt_setprop_cell(fdt, "/psci", "cpu_on", PSCI_FN_CPU_ON);
+ qemu_fdt_setprop_cell(fdt, "/psci", "migrate", PSCI_FN_MIGRATE);
+ }
+ qemu_fdt_setprop_string(fdt, "/psci", "method", "hvc");
}
}
--
1.7.9.5
- [Qemu-devel] [RFC PATCH V4 0/6] PSCI v0.2 support for KVM ARM/ARM64, Pranavkumar Sawargaonkar, 2014/05/05
- [Qemu-devel] [RFC PATCH V4 1/6] linux-headers: Update KVM headers from linux-3.16-rc1, Pranavkumar Sawargaonkar, 2014/05/05
- [Qemu-devel] [RFC PATCH V4 2/6] kvm: Handle exit reason KVM_EXIT_SYSTEM_EVENT, Pranavkumar Sawargaonkar, 2014/05/05
- [Qemu-devel] [RFC PATCH V4 3/6] target-arm: Enable KVM_ARM_VCPU_PSCI_0_2 feature when possible, Pranavkumar Sawargaonkar, 2014/05/05
- [Qemu-devel] [RFC PATCH V4 4/6] hw/arm/virt: Use PSCI v0.2 compatible when kernel supports it,
Pranavkumar Sawargaonkar <=
- Re: [Qemu-devel] [RFC PATCH V4 4/6] hw/arm/virt: Use PSCI v0.2 compatible when kernel supports it, Rob Herring, 2014/05/05
- Re: [Qemu-devel] [RFC PATCH V4 4/6] hw/arm/virt: Use PSCI v0.2 compatible when kernel supports it, Rob Herring, 2014/05/05
- Re: [Qemu-devel] [RFC PATCH V4 4/6] hw/arm/virt: Use PSCI v0.2 compatible when kernel supports it, Peter Maydell, 2014/05/05
- Re: [Qemu-devel] [RFC PATCH V4 4/6] hw/arm/virt: Use PSCI v0.2 compatible when kernel supports it, Pranavkumar Sawargaonkar, 2014/05/06
- Re: [Qemu-devel] [RFC PATCH V4 4/6] hw/arm/virt: Use PSCI v0.2 compatible when kernel supports it, Rob Herring, 2014/05/06
- Re: [Qemu-devel] [RFC PATCH V4 4/6] hw/arm/virt: Use PSCI v0.2 compatible when kernel supports it, Peter Maydell, 2014/05/06