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From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Philippe Mathieu-Daudé" <philmd@linaro.org>,
	"Alexander Graf" <agraf@csgraf.de>,
	"Mads Ynddal" <mads@ynddal.dk>,
	"Peter Maydell" <peter.maydell@linaro.org>,
	qemu-arm@nongnu.org
Subject: [RFC PATCH v2 09/10] target/arm/hvf: Consider EL2 acceleration for Silicon M3+ chipsets
Date: Tue, 12 Aug 2025 19:31:57 +0200	[thread overview]
Message-ID: <20250812173157.86934-2-philmd@linaro.org> (raw)
In-Reply-To: <20250812173157.86934-1-philmd@linaro.org>

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
Just a proof-of-concept...
---
 target/arm/hvf/hvf.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c
index 9d702b82521..84c0c0275d6 100644
--- a/target/arm/hvf/hvf.c
+++ b/target/arm/hvf/hvf.c
@@ -571,6 +571,9 @@ static struct hvf_sreg_match hvf_sreg_match[] = {
 
 bool host_cpu_feature_supported(enum arm_features feature)
 {
+    hv_return_t ret;
+    bool supported;
+
     if (!hvf_enabled()) {
         return false;
     }
@@ -582,6 +585,9 @@ bool host_cpu_feature_supported(enum arm_features feature)
     case ARM_FEATURE_GENERIC_TIMER:
         return true;
     case ARM_FEATURE_EL2:
+        ret = hv_vm_config_get_el2_supported(&supported);
+        assert_hvf_ok(ret);
+        return supported;
     case ARM_FEATURE_EL3:
         return false;
     default:
-- 
2.49.0



  reply	other threads:[~2025-08-12 17:33 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-12 17:28 [RFC PATCH v2 00/10] target/arm: Introduce host_cpu_feature_supported() API Philippe Mathieu-Daudé
2025-08-12 17:28 ` [PATCH v2 01/10] accel/system: Introduce hwaccel_enabled() helper Philippe Mathieu-Daudé
2025-08-12 17:28 ` [PATCH v2 02/10] target/arm: Use generic hwaccel_enabled() to check 'host' cpu type Philippe Mathieu-Daudé
2025-08-12 17:28 ` [PATCH v2 03/10] target/arm: Restrict PMU to system mode Philippe Mathieu-Daudé
2025-08-12 17:28 ` [PATCH v2 04/10] target/arm: Factor hvf_psci_get_target_el() out Philippe Mathieu-Daudé
2025-08-12 17:31 ` [RFC PATCH v2 05/10] target/arm: Introduce host_cpu_feature_supported() Philippe Mathieu-Daudé
2025-08-12 17:31   ` [RFC PATCH v2 06/10] target/arm: Replace kvm_arm_pmu_supported by host_cpu_feature_supported Philippe Mathieu-Daudé
2025-08-12 22:23     ` Richard Henderson
2025-08-12 17:31   ` [RFC PATCH v2 07/10] target/arm: Replace kvm_arm_el2_supported " Philippe Mathieu-Daudé
2025-08-12 22:27     ` Richard Henderson
2025-08-12 22:22   ` [RFC PATCH v2 05/10] target/arm: Introduce host_cpu_feature_supported() Richard Henderson
2025-08-12 17:31 ` [RFC PATCH v2 08/10] target/arm/hvf: Sync registers used at EL2 Philippe Mathieu-Daudé
2025-08-12 17:31   ` Philippe Mathieu-Daudé [this message]
2025-08-12 22:32     ` [RFC PATCH v2 09/10] target/arm/hvf: Consider EL2 acceleration for Silicon M3+ chipsets Richard Henderson
2025-08-12 22:31   ` [RFC PATCH v2 08/10] target/arm/hvf: Sync registers used at EL2 Richard Henderson
2025-08-13  7:20     ` Philippe Mathieu-Daudé
2025-08-13  7:35       ` Richard Henderson
2025-08-12 17:32 ` [RFC PATCH v2 10/10] target/arm/hvf: Allow EL2/EL3 emulation on Silicon M1 / M2 Philippe Mathieu-Daudé
2025-08-12 22:34   ` Richard Henderson
2025-08-13  6:08     ` Philippe Mathieu-Daudé

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