From: David Brazdil <dbrazdil@google.com>
To: kvmarm@lists.cs.columbia.edu
Cc: Marc Zyngier <maz@kernel.org>, James Morse <james.morse@arm.com>,
Julien Thierry <julien.thierry.kdev@gmail.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, kernel-team@android.com,
David Brazdil <dbrazdil@google.com>
Subject: [PATCH 3/6] kvm: arm64: Skip computing hyp VA layout for VHE
Date: Tue, 8 Dec 2020 14:24:49 +0000 [thread overview]
Message-ID: <20201208142452.87237-4-dbrazdil@google.com> (raw)
In-Reply-To: <20201208142452.87237-1-dbrazdil@google.com>
Computing the hyp VA layout is redundant when the kernel runs in EL2 and
hyp shares its VA mappings. Make calling kvm_compute_layout()
conditional on not just CONFIG_KVM but also !is_kernel_in_hyp_mode().
Signed-off-by: David Brazdil <dbrazdil@google.com>
---
arch/arm64/kernel/smp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 18e9727d3f64..4e585cc892e8 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -434,7 +434,7 @@ static void __init hyp_mode_check(void)
"CPU: CPUs started in inconsistent modes");
else
pr_info("CPU: All CPU(s) started at EL1\n");
- if (IS_ENABLED(CONFIG_KVM))
+ if (IS_ENABLED(CONFIG_KVM) && !is_kernel_in_hyp_mode())
kvm_compute_layout();
}
--
2.29.2.576.ga3fc446d84-goog
WARNING: multiple messages have this Message-ID (diff)
From: David Brazdil <dbrazdil@google.com>
To: kvmarm@lists.cs.columbia.edu
Cc: kernel-team@android.com, Marc Zyngier <maz@kernel.org>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>
Subject: [PATCH 3/6] kvm: arm64: Skip computing hyp VA layout for VHE
Date: Tue, 8 Dec 2020 14:24:49 +0000 [thread overview]
Message-ID: <20201208142452.87237-4-dbrazdil@google.com> (raw)
In-Reply-To: <20201208142452.87237-1-dbrazdil@google.com>
Computing the hyp VA layout is redundant when the kernel runs in EL2 and
hyp shares its VA mappings. Make calling kvm_compute_layout()
conditional on not just CONFIG_KVM but also !is_kernel_in_hyp_mode().
Signed-off-by: David Brazdil <dbrazdil@google.com>
---
arch/arm64/kernel/smp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 18e9727d3f64..4e585cc892e8 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -434,7 +434,7 @@ static void __init hyp_mode_check(void)
"CPU: CPUs started in inconsistent modes");
else
pr_info("CPU: All CPU(s) started at EL1\n");
- if (IS_ENABLED(CONFIG_KVM))
+ if (IS_ENABLED(CONFIG_KVM) && !is_kernel_in_hyp_mode())
kvm_compute_layout();
}
--
2.29.2.576.ga3fc446d84-goog
_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
WARNING: multiple messages have this Message-ID (diff)
From: David Brazdil <dbrazdil@google.com>
To: kvmarm@lists.cs.columbia.edu
Cc: Mark Rutland <mark.rutland@arm.com>,
kernel-team@android.com,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Marc Zyngier <maz@kernel.org>,
linux-kernel@vger.kernel.org, James Morse <james.morse@arm.com>,
linux-arm-kernel@lists.infradead.org,
Catalin Marinas <catalin.marinas@arm.com>,
David Brazdil <dbrazdil@google.com>,
Will Deacon <will@kernel.org>,
Julien Thierry <julien.thierry.kdev@gmail.com>
Subject: [PATCH 3/6] kvm: arm64: Skip computing hyp VA layout for VHE
Date: Tue, 8 Dec 2020 14:24:49 +0000 [thread overview]
Message-ID: <20201208142452.87237-4-dbrazdil@google.com> (raw)
In-Reply-To: <20201208142452.87237-1-dbrazdil@google.com>
Computing the hyp VA layout is redundant when the kernel runs in EL2 and
hyp shares its VA mappings. Make calling kvm_compute_layout()
conditional on not just CONFIG_KVM but also !is_kernel_in_hyp_mode().
Signed-off-by: David Brazdil <dbrazdil@google.com>
---
arch/arm64/kernel/smp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 18e9727d3f64..4e585cc892e8 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -434,7 +434,7 @@ static void __init hyp_mode_check(void)
"CPU: CPUs started in inconsistent modes");
else
pr_info("CPU: All CPU(s) started at EL1\n");
- if (IS_ENABLED(CONFIG_KVM))
+ if (IS_ENABLED(CONFIG_KVM) && !is_kernel_in_hyp_mode())
kvm_compute_layout();
}
--
2.29.2.576.ga3fc446d84-goog
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-12-08 14:26 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-08 14:24 [PATCH 0/6] Fixes and cleanups of PSCI relay for kvmarm/next David Brazdil
2020-12-08 14:24 ` David Brazdil
2020-12-08 14:24 ` David Brazdil
2020-12-08 14:24 ` [PATCH 1/6] kvm: arm64: Prevent use of invalid PSCI v0.1 function IDs David Brazdil
2020-12-08 14:24 ` David Brazdil
2020-12-08 14:24 ` David Brazdil
2020-12-08 15:56 ` Marc Zyngier
2020-12-08 15:56 ` Marc Zyngier
2020-12-08 15:56 ` Marc Zyngier
2020-12-08 17:26 ` Mark Rutland
2020-12-08 17:26 ` Mark Rutland
2020-12-08 17:26 ` Mark Rutland
2020-12-22 16:05 ` Marc Zyngier
2020-12-22 16:05 ` Marc Zyngier
2020-12-22 16:05 ` Marc Zyngier
2020-12-08 14:24 ` [PATCH 2/6] kvm: arm64: Use lm_alias in nVHE-only VA conversion David Brazdil
2020-12-08 14:24 ` David Brazdil
2020-12-08 14:24 ` David Brazdil
2020-12-08 14:24 ` David Brazdil [this message]
2020-12-08 14:24 ` [PATCH 3/6] kvm: arm64: Skip computing hyp VA layout for VHE David Brazdil
2020-12-08 14:24 ` David Brazdil
2020-12-08 14:24 ` [PATCH 4/6] kvm: arm64: Minor cleanup of hyp variables used in host David Brazdil
2020-12-08 14:24 ` David Brazdil
2020-12-08 14:24 ` David Brazdil
2020-12-08 14:24 ` [PATCH 5/6] kvm: arm64: Remove unused includes in psci-relay.c David Brazdil
2020-12-08 14:24 ` David Brazdil
2020-12-08 14:24 ` David Brazdil
2020-12-08 14:24 ` [PATCH 6/6] kvm: arm64: Move skip_host_instruction to adjust_pc.h David Brazdil
2020-12-08 14:24 ` David Brazdil
2020-12-08 14:24 ` David Brazdil
2020-12-22 16:06 ` [PATCH 0/6] Fixes and cleanups of PSCI relay for kvmarm/next Marc Zyngier
2020-12-22 16:06 ` Marc Zyngier
2020-12-22 16:06 ` Marc Zyngier
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