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From: David Brazdil <dbrazdil@google.com>
To: kvmarm@lists.cs.columbia.edu
Cc: Catalin Marinas <catalin.marinas@arm.com>,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>,
	Ard Biesheuvel <ardb@kernel.org>
Subject: [PATCH v2 1/8] KVM: arm64: Rename .idmap.text in hyp linker script
Date: Tue,  5 Jan 2021 18:05:34 +0000	[thread overview]
Message-ID: <20210105180541.65031-2-dbrazdil@google.com> (raw)
In-Reply-To: <20210105180541.65031-1-dbrazdil@google.com>

So far hyp-init.S created a .hyp.idmap.text section directly, without
relying on the hyp linker script to prefix its name. Change it to create
.idmap.text and add a HYP_SECTION entry to hyp.lds.S. This way all .hyp*
sections go through the linker script and can be instrumented there.

Signed-off-by: David Brazdil <dbrazdil@google.com>
---
 arch/arm64/kvm/hyp/nvhe/hyp-init.S | 2 +-
 arch/arm64/kvm/hyp/nvhe/hyp.lds.S  | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-init.S b/arch/arm64/kvm/hyp/nvhe/hyp-init.S
index 31b060a44045..68fd64f2313e 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-init.S
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-init.S
@@ -18,7 +18,7 @@
 #include <asm/virt.h>
 
 	.text
-	.pushsection	.hyp.idmap.text, "ax"
+	.pushsection	.idmap.text, "ax"
 
 	.align	11
 
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp.lds.S b/arch/arm64/kvm/hyp/nvhe/hyp.lds.S
index 1206d0d754d5..70ac48ccede7 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp.lds.S
+++ b/arch/arm64/kvm/hyp/nvhe/hyp.lds.S
@@ -12,6 +12,7 @@
 #include <asm/memory.h>
 
 SECTIONS {
+	HYP_SECTION(.idmap.text)
 	HYP_SECTION(.text)
 	/*
 	 * .hyp..data..percpu needs to be page aligned to maintain the same
-- 
2.29.2.729.g45daf8777d-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>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	linux-kernel@vger.kernel.org, James Morse <james.morse@arm.com>,
	linux-arm-kernel@lists.infradead.org,
	Marc Zyngier <maz@kernel.org>,
	David Brazdil <dbrazdil@google.com>,
	Will Deacon <will@kernel.org>, Ard Biesheuvel <ardb@kernel.org>,
	Julien Thierry <julien.thierry.kdev@gmail.com>
Subject: [PATCH v2 1/8] KVM: arm64: Rename .idmap.text in hyp linker script
Date: Tue,  5 Jan 2021 18:05:34 +0000	[thread overview]
Message-ID: <20210105180541.65031-2-dbrazdil@google.com> (raw)
In-Reply-To: <20210105180541.65031-1-dbrazdil@google.com>

So far hyp-init.S created a .hyp.idmap.text section directly, without
relying on the hyp linker script to prefix its name. Change it to create
.idmap.text and add a HYP_SECTION entry to hyp.lds.S. This way all .hyp*
sections go through the linker script and can be instrumented there.

Signed-off-by: David Brazdil <dbrazdil@google.com>
---
 arch/arm64/kvm/hyp/nvhe/hyp-init.S | 2 +-
 arch/arm64/kvm/hyp/nvhe/hyp.lds.S  | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-init.S b/arch/arm64/kvm/hyp/nvhe/hyp-init.S
index 31b060a44045..68fd64f2313e 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-init.S
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-init.S
@@ -18,7 +18,7 @@
 #include <asm/virt.h>
 
 	.text
-	.pushsection	.hyp.idmap.text, "ax"
+	.pushsection	.idmap.text, "ax"
 
 	.align	11
 
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp.lds.S b/arch/arm64/kvm/hyp/nvhe/hyp.lds.S
index 1206d0d754d5..70ac48ccede7 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp.lds.S
+++ b/arch/arm64/kvm/hyp/nvhe/hyp.lds.S
@@ -12,6 +12,7 @@
 #include <asm/memory.h>
 
 SECTIONS {
+	HYP_SECTION(.idmap.text)
 	HYP_SECTION(.text)
 	/*
 	 * .hyp..data..percpu needs to be page aligned to maintain the same
-- 
2.29.2.729.g45daf8777d-goog


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

WARNING: multiple messages have this Message-ID (diff)
From: David Brazdil <dbrazdil@google.com>
To: kvmarm@lists.cs.columbia.edu
Cc: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>, 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>,
	Ard Biesheuvel <ardb@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, David Brazdil <dbrazdil@google.com>
Subject: [PATCH v2 1/8] KVM: arm64: Rename .idmap.text in hyp linker script
Date: Tue,  5 Jan 2021 18:05:34 +0000	[thread overview]
Message-ID: <20210105180541.65031-2-dbrazdil@google.com> (raw)
In-Reply-To: <20210105180541.65031-1-dbrazdil@google.com>

So far hyp-init.S created a .hyp.idmap.text section directly, without
relying on the hyp linker script to prefix its name. Change it to create
.idmap.text and add a HYP_SECTION entry to hyp.lds.S. This way all .hyp*
sections go through the linker script and can be instrumented there.

Signed-off-by: David Brazdil <dbrazdil@google.com>
---
 arch/arm64/kvm/hyp/nvhe/hyp-init.S | 2 +-
 arch/arm64/kvm/hyp/nvhe/hyp.lds.S  | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-init.S b/arch/arm64/kvm/hyp/nvhe/hyp-init.S
index 31b060a44045..68fd64f2313e 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-init.S
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-init.S
@@ -18,7 +18,7 @@
 #include <asm/virt.h>
 
 	.text
-	.pushsection	.hyp.idmap.text, "ax"
+	.pushsection	.idmap.text, "ax"
 
 	.align	11
 
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp.lds.S b/arch/arm64/kvm/hyp/nvhe/hyp.lds.S
index 1206d0d754d5..70ac48ccede7 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp.lds.S
+++ b/arch/arm64/kvm/hyp/nvhe/hyp.lds.S
@@ -12,6 +12,7 @@
 #include <asm/memory.h>
 
 SECTIONS {
+	HYP_SECTION(.idmap.text)
 	HYP_SECTION(.text)
 	/*
 	 * .hyp..data..percpu needs to be page aligned to maintain the same
-- 
2.29.2.729.g45daf8777d-goog


  reply	other threads:[~2021-01-05 18:06 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-05 18:05 [PATCH v2 0/8] arm64: Relocate absolute hyp VAs David Brazdil
2021-01-05 18:05 ` David Brazdil
2021-01-05 18:05 ` David Brazdil
2021-01-05 18:05 ` David Brazdil [this message]
2021-01-05 18:05   ` [PATCH v2 1/8] KVM: arm64: Rename .idmap.text in hyp linker script David Brazdil
2021-01-05 18:05   ` David Brazdil
2021-01-05 18:05 ` [PATCH v2 2/8] KVM: arm64: Set up .hyp.rodata ELF section David Brazdil
2021-01-05 18:05   ` David Brazdil
2021-01-05 18:05   ` David Brazdil
2021-01-05 18:05 ` [PATCH v2 3/8] KVM: arm64: Add symbol at the beginning of each hyp section David Brazdil
2021-01-05 18:05   ` David Brazdil
2021-01-05 18:05   ` David Brazdil
2021-01-23 13:30   ` Marc Zyngier
2021-01-23 13:30     ` Marc Zyngier
2021-01-23 13:30     ` Marc Zyngier
2021-01-05 18:05 ` [PATCH v2 4/8] KVM: arm64: Generate hyp relocation data David Brazdil
2021-01-05 18:05   ` David Brazdil
2021-01-05 18:05   ` David Brazdil
2021-01-29 21:43   ` Guenter Roeck
2021-01-29 21:43     ` Guenter Roeck
2021-01-29 21:43     ` Guenter Roeck
2021-01-30 12:16     ` Marc Zyngier
2021-01-30 12:16       ` Marc Zyngier
2021-01-30 12:16       ` Marc Zyngier
2021-01-30 13:44     ` Marc Zyngier
2021-01-30 13:44       ` Marc Zyngier
2021-01-30 13:44       ` Marc Zyngier
2021-01-30 16:11       ` Guenter Roeck
2021-01-30 16:11         ` Guenter Roeck
2021-01-30 16:11         ` Guenter Roeck
2021-01-30 18:10         ` Marc Zyngier
2021-01-30 18:10           ` Marc Zyngier
2021-01-30 18:10           ` Marc Zyngier
2021-02-01 10:42       ` David Brazdil
2021-02-01 10:42         ` David Brazdil
2021-02-01 10:42         ` David Brazdil
2021-02-01 12:06         ` Marc Zyngier
2021-02-01 12:06           ` Marc Zyngier
2021-02-01 12:06           ` Marc Zyngier
2021-01-05 18:05 ` [PATCH v2 5/8] KVM: arm64: Apply hyp relocations at runtime David Brazdil
2021-01-05 18:05   ` David Brazdil
2021-01-05 18:05   ` David Brazdil
2021-01-05 18:05 ` [PATCH v2 6/8] KVM: arm64: Fix constant-pool users in hyp David Brazdil
2021-01-05 18:05   ` David Brazdil
2021-01-05 18:05   ` David Brazdil
2021-01-05 18:05 ` [PATCH v2 7/8] KVM: arm64: Remove patching of fn pointers " David Brazdil
2021-01-05 18:05   ` David Brazdil
2021-01-05 18:05   ` David Brazdil
2021-01-05 18:05 ` [PATCH v2 8/8] KVM: arm64: Remove hyp_symbol_addr David Brazdil
2021-01-05 18:05   ` David Brazdil
2021-01-05 18:05   ` David Brazdil
2021-01-23 13:54   ` Marc Zyngier
2021-01-23 13:54     ` Marc Zyngier
2021-01-23 13:54     ` Marc Zyngier
2021-01-23 14:45 ` [PATCH v2 0/8] arm64: Relocate absolute hyp VAs Marc Zyngier
2021-01-23 14:45   ` Marc Zyngier
2021-01-23 14:45   ` Marc Zyngier

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