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[Qemu-devel] [RFC PATCH V5 8/8] hw/arm/virt: Use PSCI v0.2 compatible wh
From: |
Pranavkumar Sawargaonkar |
Subject: |
[Qemu-devel] [RFC PATCH V5 8/8] hw/arm/virt: Use PSCI v0.2 compatible when kernel supports it |
Date: |
Mon, 12 May 2014 18:07:26 +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 | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index ea4f02d..64ee630 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -183,7 +183,13 @@ 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");
+ if (kvm_check_extension(kvm_state, QEMU_KVM_CAP_ARM_PSCI_0_2)) {
+ qemu_fdt_setprop(fdt, "/psci", "compatible",
+ "arm,psci-0.2\0arm,psci",
+ strlen("arm,psci-0.2") + strlen("arm,psci") + 2);
+ } 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);
--
1.7.9.5
- Re: [Qemu-devel] [RFC PATCH V5 3/8] kvm: Handle exit reason KVM_EXIT_SYSTEM_EVENT, (continued)
- [Qemu-devel] [RFC PATCH V5 4/8] target-arm/kvm-const.h: Add QEMU_KVM_CAP_ARM_PSCI_0_2 define, Pranavkumar Sawargaonkar, 2014/05/12
- [Qemu-devel] [RFC PATCH V5 5/8] target-arm: Common kvm_arm_vcpu_init() for KVM ARM and KVM ARM64, Pranavkumar Sawargaonkar, 2014/05/12
- [Qemu-devel] [RFC PATCH V5 6/8] target-arm: Enable KVM_ARM_VCPU_PSCI_0_2 feature when possible, Pranavkumar Sawargaonkar, 2014/05/12
- [Qemu-devel] [RFC PATCH V5 7/8] target-arm: Implement kvm_arch_reset_vcpu() for KVM ARM64, Pranavkumar Sawargaonkar, 2014/05/12
- [Qemu-devel] [RFC PATCH V5 8/8] hw/arm/virt: Use PSCI v0.2 compatible when kernel supports it,
Pranavkumar Sawargaonkar <=
- Re: [Qemu-devel] [RFC PATCH V5 0/8] PSCI v0.2 support for KVM ARM/ARM64, Peter Maydell, 2014/05/14