diff options
| author | David Daney <david.daney@cavium.com> | 2017-06-09 13:49:48 +0200 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2017-06-15 10:45:04 +0200 |
| commit | 690a341577f9adf2c275ababe0dcefe91898bbf0 (patch) | |
| tree | 1a39e66e7e4756444bdf8e7bc8b22cbc01095fe6 /arch/arm64/Kconfig | |
| parent | arm64: Add MIDR values for Cavium cn83XX SoCs (diff) | |
| download | linux-690a341577f9adf2c275ababe0dcefe91898bbf0.tar.xz linux-690a341577f9adf2c275ababe0dcefe91898bbf0.zip | |
arm64: Add workaround for Cavium Thunder erratum 30115
Some Cavium Thunder CPUs suffer a problem where a KVM guest may
inadvertently cause the host kernel to quit receiving interrupts.
Use the Group-0/1 trapping in order to deal with it.
[maz]: Adapted patch to the Group-0/1 trapping, reworked commit log
Tested-by: Alexander Graf <agraf@suse.de>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <cdall@linaro.org>
Diffstat (limited to 'arch/arm64/Kconfig')
| -rw-r--r-- | arch/arm64/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 3dcd7ec69bca..6252365b0c96 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -480,6 +480,17 @@ config CAVIUM_ERRATUM_27456 If unsure, say Y. +config CAVIUM_ERRATUM_30115 + bool "Cavium erratum 30115: Guest may disable interrupts in host" + default y + help + On ThunderX T88 pass 1.x through 2.2, T81 pass 1.0 through + 1.2, and T83 Pass 1.0, KVM guest execution may disable + interrupts in host. Trapping both GICv3 group-0 and group-1 + accesses sidesteps the issue. + + If unsure, say Y. + config QCOM_FALKOR_ERRATUM_1003 bool "Falkor E1003: Incorrect translation due to ASID change" default y |