From: George-Aurelian Popescu <georgepope@google.com>
To: maz@kernel.org, catalin.marinas@arm.com, will@kernel.org,
masahiroy@kernel.org, michal.lkml@markovi.net
Cc: linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org,
linux-kbuild@vger.kernel.org, clang-built-linux@googlegroups.com,
james.morse@arm.com, julien.thierry.kdev@gmail.com,
suzuki.poulose@arm.com, natechancellor@gmail.com,
ndesaulniers@google.com, dbrazdil@google.com, broonie@kernel.org,
maskray@google.com, ascull@google.com, keescook@chromium.org,
akpm@linux-foundation.org, dvyukov@google.com, elver@google.com,
tglx@linutronix.de, arnd@arndb.de,
George Popescu <georgepope@google.com>
Subject: [PATCH 02/14] KVM: arm64: Define a macro for storing a value inside a per_cpu variable
Date: Mon, 14 Sep 2020 17:27:38 +0000 [thread overview]
Message-ID: <20200914172750.852684-3-georgepope@google.com> (raw)
In-Reply-To: <20200914172750.852684-1-georgepope@google.com>
From: George Popescu <georgepope@google.com>
Use the hyp_str_this_cpu assembly macro to store a value in a per_cpu
variable. This macro is designed to be used inside of the hyp code.
Signed-off-by: George Popescu <georgepope@google.com>
---
arch/arm64/include/asm/kvm_asm.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index 6f98fbd0ac81..200bb8d0a720 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -211,6 +211,11 @@ extern char __smccc_workaround_1_smc[__SMCCC_WORKAROUND_1_SMC_SZ];
ldr \reg, [\reg, \tmp]
.endm
+.macro hyp_str_this_cpu sym, reg, tmp1, tmp2
+ hyp_adr_this_cpu \tmp1, \sym, \tmp2
+ str \reg, [\tmp1]
+.endm
+
.macro get_host_ctxt reg, tmp
hyp_adr_this_cpu \reg, kvm_host_data, \tmp
add \reg, \reg, #HOST_DATA_CONTEXT
--
2.28.0.618.gf4bc123cb7-goog
next prev parent reply other threads:[~2020-09-14 17:34 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-14 17:27 [PATCH 00/14] UBSan Enablement for hyp/nVHE code George-Aurelian Popescu
2020-09-14 17:27 ` [PATCH 01/14] KVM: arm64: Enable UBSan instrumentation in nVHE hyp code George-Aurelian Popescu
2020-09-14 17:27 ` George-Aurelian Popescu [this message]
2020-09-14 17:27 ` [PATCH 03/14] KVM: arm64: Add support for creating and checking a logging buffer inside hyp/nVHE George-Aurelian Popescu
2020-10-01 10:07 ` Andrew Scull
2020-09-14 17:27 ` [PATCH 04/14] KVM: arm64: Add support for buffer usage George-Aurelian Popescu
2020-09-14 17:27 ` [PATCH 05/14] KVM: arm64: Define a buffer that can pass UBSan data from hyp/nVHE to kernel George-Aurelian Popescu
2020-09-15 13:25 ` George Popescu
2020-10-01 10:51 ` Andrew Scull
2020-09-14 17:27 ` [PATCH 06/14] Fix CFLAGS for UBSAN_BOUNDS on Clang George-Aurelian Popescu
2020-09-14 21:17 ` Nick Desaulniers
2020-09-14 22:13 ` Kees Cook
2020-09-15 10:24 ` George Popescu
2020-09-15 11:18 ` Marco Elver
2020-09-15 12:01 ` George Popescu
2020-09-15 17:32 ` Marco Elver
2020-09-16 7:40 ` George Popescu
2020-09-16 8:32 ` Marco Elver
[not found] ` <20200916121401.GA3362356@google.com>
2020-09-16 13:40 ` Marco Elver
2020-09-17 6:37 ` Marco Elver
2020-09-17 11:35 ` George Popescu
2020-09-17 22:21 ` Kees Cook
2020-09-17 22:17 ` Kees Cook
2020-09-14 17:27 ` [PATCH 07/14] KVM: arm64: Enable UBSAN_BOUNDS for the both the kernel and hyp/nVHE George-Aurelian Popescu
2020-10-01 10:57 ` Andrew Scull
2020-09-14 17:27 ` [PATCH 08/14] KVM: arm64: Enable UBsan check for unreachable code inside hyp/nVHE code George-Aurelian Popescu
2020-09-14 17:27 ` [PATCH 09/14] KVM: arm64: Enable shift out of bounds undefined behaviour check for hyp/nVHE George-Aurelian Popescu
2020-09-14 17:27 ` [PATCH 10/14] KVM: arm64: __ubsan_handle_load_invalid_value hyp/nVHE implementation George-Aurelian Popescu
2020-09-14 17:27 ` [PATCH 11/14] KVM: arm64: Detect type mismatch undefined behaviour from hyp/nVHE code George-Aurelian Popescu
2020-09-14 17:27 ` [PATCH 12/14] KVM: arm64: Detect arithmetic overflow is inside hyp/nVHE George-Aurelian Popescu
2020-09-14 17:27 ` [PATCH 13/14] KVM: arm64: Enable the CONFIG_TEST UBSan for PKVM George-Aurelian Popescu
2020-09-14 17:27 ` [PATCH 14/14] DO NOT MERGE: Enable configs to test the patch series George-Aurelian Popescu
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