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linux/arch/arm64
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Marc Zyngier 14c7f5bc7a arm64: KVM: Fix SMCCC handling of unimplemented SMC/HVC calls 
commit acfb3b883f upstream.

KVM doesn't follow the SMCCC when it comes to unimplemented calls,
and inject an UNDEF instead of returning an error. Since firmware
calls are now used for security mitigation, they are becoming more
common, and the undef is counter productive.

Instead, let's follow the SMCCC which states that -1 must be returned
to the caller when getting an unknown function number.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2018-01-23 19:58:20 +01:00
..
boot ARM64: dts: marvell: armada-cp110: Fix clock resources for various node 2018-01-23 19:58:16 +01:00
configs ARM/arm64: SoC platform updates for v4.14 2017-09-10 20:35:46 -07:00
crypto License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
include ACPI / APEI: Replace ioremap_page_range() with fixmap 2017-12-25 14:26:20 +01:00
kernel arm64: fpsimd: Prevent registers leaking from dead tasks 2017-12-14 09:53:02 +01:00
kvm arm64: KVM: Fix SMCCC handling of unimplemented SMC/HVC calls 2018-01-23 19:58:20 +01:00
lib License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mm arm64: fix CONFIG_DEBUG_WX address reporting 2017-12-20 10:10:20 +01:00
net bpf, arm64: implement jiting of BPF_J{LT, LE, SLT, SLE} 2017-08-09 16:53:56 -07:00
xen xen/privcmd: Add IOCTL_PRIVCMD_DM_OP 2017-02-14 15:13:43 -05:00
Kconfig Merge branch 'arm64/vmap-stack' of git://git.kernel.org/pub/scm/linux/kernel/git/mark/linux into for-next/core 2017-08-15 18:40:58 +01:00
Kconfig.debug arm64: relocation testing module 2017-04-04 17:03:32 +01:00
Kconfig.platforms ARM: arm64: Devicetree updates for v4.14 2017-09-10 20:54:48 -07:00
Makefile arm64: prevent regressions in compressed kernel image size when upgrading to binutils 2.27 2017-12-20 10:10:29 +01:00