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| author | Julien Thierry <julien.thierry@arm.com> | 2017-10-20 11:34:17 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-08 09:08:32 (GMT) |
| commit | e059fc3c36c01cf7c67e3177132e18d16278630a (patch) | |
| tree | c6bfdd31fdb3e1bbe498de419f813beeba68dbdd /arch/arm | |
| parent | d7d5a30e23a2e10210ec9cd92ea64af6649557be (diff) | |
| download | linux-e059fc3c36c01cf7c67e3177132e18d16278630a.tar.xz | |
arm/arm64: kvm: Disable branch profiling in HYP code
commit f9b269f3098121b5d54aaf822e0898c8ed1d3fec upstream.
When HYP code runs into branch profiling code, it attempts to jump to
unmapped memory, causing a HYP Panic.
Disable the branch profiling for code designed to run at HYP mode.
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Christoffer Dall <christoffer.dall@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/kvm/hyp/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/kvm/hyp/Makefile b/arch/arm/kvm/hyp/Makefile index 8679405..92eab1d 100644 --- a/arch/arm/kvm/hyp/Makefile +++ b/arch/arm/kvm/hyp/Makefile @@ -2,7 +2,7 @@ # Makefile for Kernel-based Virtual Machine module, HYP part # -ccflags-y += -fno-stack-protector +ccflags-y += -fno-stack-protector -DDISABLE_BRANCH_PROFILING KVM=../../../../virt/kvm |