From: Haibo Xu <haibo.xu@linaro.org>
To: qemu-devel@nongnu.org, qemu-arm@nongnu.org
Cc: peter.maydell@linaro.org, drjones@redhat.com,
richard.henderson@linaro.org, abologna@redhat.com,
Haibo Xu <haibo.xu@linaro.org>,
philmd@redhat.com
Subject: [PATCH RESEND v2 2/6] target/arm/kvm: Add helper to detect el2 when using KVM
Date: Thu, 1 Apr 2021 12:55:34 +0000 [thread overview]
Message-ID: <65b8771bfecada08bf02c9cf87c2f0f9cdf943b3.1617281290.git.haibo.xu@linaro.org> (raw)
In-Reply-To: <cover.1617281290.git.haibo.xu@linaro.org>
Signed-off-by: Haibo Xu <haibo.xu@linaro.org>
---
target/arm/kvm64.c | 5 +++++
target/arm/kvm_arm.h | 13 +++++++++++++
2 files changed, 18 insertions(+)
diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
index dff85f6db9..9cacaf2eb8 100644
--- a/target/arm/kvm64.c
+++ b/target/arm/kvm64.c
@@ -721,6 +721,11 @@ bool kvm_arm_steal_time_supported(void)
return kvm_check_extension(kvm_state, KVM_CAP_STEAL_TIME);
}
+bool kvm_arm_el2_supported(void)
+{
+ return kvm_check_extension(kvm_state, KVM_CAP_ARM_EL2);
+}
+
QEMU_BUILD_BUG_ON(KVM_ARM64_SVE_VQ_MIN != 1);
void kvm_arm_sve_get_vls(CPUState *cs, unsigned long *map)
diff --git a/target/arm/kvm_arm.h b/target/arm/kvm_arm.h
index 34f8daa377..7d7fc7981b 100644
--- a/target/arm/kvm_arm.h
+++ b/target/arm/kvm_arm.h
@@ -285,6 +285,14 @@ void kvm_arm_steal_time_finalize(ARMCPU *cpu, Error **errp);
*/
bool kvm_arm_steal_time_supported(void);
+/**
+ * kvm_arm_el2_supported:
+ *
+ * Returns: true if KVM can enable el2(nested virtualization)
+ * and false otherwise.
+ */
+bool kvm_arm_el2_supported(void);
+
/**
* kvm_arm_aarch32_supported:
*
@@ -398,6 +406,11 @@ static inline bool kvm_arm_steal_time_supported(void)
return false;
}
+static inline bool kvm_arm_el2_supported(void)
+{
+ return false;
+}
+
/*
* These functions should never actually be called without KVM support.
*/
--
2.17.1
next prev parent reply other threads:[~2021-04-01 12:57 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-01 12:55 [PATCH RESEND v2 0/6] target/arm: Add nested virtualization support Haibo Xu
2021-04-01 12:55 ` [PATCH RESEND v2 1/6] Update linux header with new arm64 NV macro Haibo Xu
2021-04-01 12:55 ` Haibo Xu [this message]
2021-04-27 8:27 ` [PATCH RESEND v2 2/6] target/arm/kvm: Add helper to detect el2 when using KVM Andrew Jones
2021-04-01 12:55 ` [PATCH RESEND v2 3/6] target/arm/kvm: Add an option to turn on/off el2 support Haibo Xu
2021-04-27 8:38 ` Andrew Jones
2021-04-27 9:29 ` Peter Maydell
2021-04-01 12:55 ` [PATCH RESEND v2 4/6] hw/intc/arm_gicv3: Enable support for setting vGIC maintenance IRQ Haibo Xu
2021-04-27 8:55 ` Andrew Jones
2021-04-01 12:55 ` [PATCH RESEND v2 5/6] target/arm/cpu: Enable 'el2' to work with host/max cpu Haibo Xu
2021-04-27 9:24 ` Andrew Jones
2021-04-27 9:38 ` Peter Maydell
2021-04-27 9:49 ` Andrew Jones
2021-04-27 12:04 ` Peter Maydell
2021-04-01 12:55 ` [PATCH RESEND v2 6/6] target/arm: Add vCPU feature 'el2' test Haibo Xu
2021-04-27 9:37 ` Andrew Jones
2021-04-01 17:53 ` [PATCH RESEND v2 0/6] target/arm: Add nested virtualization support Andrea Bolognani
2021-04-27 9:40 ` Andrew Jones
2021-04-27 9:42 ` Peter Maydell
2021-04-27 9:54 ` Andrew Jones
2021-04-27 12:15 ` Peter Maydell
2021-04-27 14:48 ` Andrew Jones
2021-04-27 14:58 ` Peter Maydell
2021-04-27 15:01 ` Peter Maydell
2021-04-27 16:17 ` Andrew Jones
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