[v4] hvf: Implement Apple Silicon Support

[PATCH v4 05/11] arm: Set PSCI to 0.2 for HVF

Alexander Graf posted 11 patches 5 years, 2 months ago

Diff against v1 v2 v3 v5 v6 v7 v8 v9 v10 v11 v12
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Maintainers: Richard Henderson <richard.henderson@linaro.org>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Roman Bolshakov <r.bolshakov@yadro.com>, Eduardo Habkost <ehabkost@redhat.com>, Cameron Esfahani <dirty@apple.com>, Paolo Bonzini <pbonzini@redhat.com>, Alexander Graf <agraf@csgraf.de>, Peter Maydell <peter.maydell@linaro.org>

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[PATCH v4 05/11] arm: Set PSCI to 0.2 for HVF

Posted by Alexander Graf 5 years, 2 months ago

In Hypervisor.framework, we just pass PSCI calls straight on to the QEMU emulation
of it. That means, if TCG is compatible with PSCI 0.2, so are we. Let's transpose
that fact in code too.

Signed-off-by: Alexander Graf <agraf@csgraf.de>

---

v3 -> v4:

  - Combine both if statements
---
 target/arm/cpu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 07492e9f9a..6728426551 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -1059,8 +1059,8 @@ static void arm_cpu_initfn(Object *obj)
     cpu->psci_version = 1; /* By default assume PSCI v0.1 */
     cpu->kvm_target = QEMU_KVM_ARM_TARGET_NONE;
 
-    if (tcg_enabled()) {
-        cpu->psci_version = 2; /* TCG implements PSCI 0.2 */
+    if (tcg_enabled() || hvf_enabled()) {
+        cpu->psci_version = 2; /* TCG and HVF implement PSCI 0.2 */
     }
 }
 
-- 
2.24.3 (Apple Git-128)

Re: [PATCH v4 05/11] arm: Set PSCI to 0.2 for HVF

Posted by Roman Bolshakov 5 years, 2 months ago

On Fri, Dec 04, 2020 at 12:48:51AM +0100, Alexander Graf wrote:
> In Hypervisor.framework, we just pass PSCI calls straight on to the QEMU emulation
> of it. That means, if TCG is compatible with PSCI 0.2, so are we. Let's transpose
> that fact in code too.
> 

Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>