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| author | Shanker Donthineni <shankerd@codeaurora.org> | 2018-04-10 11:36:42 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2018-04-11 18:49:30 +0100 |
| commit | 4bc352ffb39e4eec253e70f8c076f2f48a6c1926 (patch) | |
| tree | dc7de7d28f606e235d333a9a154a99a86ba072e1 /arch/arm64/kvm/hyp/entry.S | |
| parent | d8312a3f61024352f1c7cb967571fd53631b0d6c (diff) | |
| download | linux-4bc352ffb39e4eec253e70f8c076f2f48a6c1926.tar.bz2 | |
arm64: KVM: Use SMCCC_ARCH_WORKAROUND_1 for Falkor BP hardening
The function SMCCC_ARCH_WORKAROUND_1 was introduced as part of SMC
V1.1 Calling Convention to mitigate CVE-2017-5715. This patch uses
the standard call SMCCC_ARCH_WORKAROUND_1 for Falkor chips instead
of Silicon provider service ID 0xC2001700.
Cc: <stable@vger.kernel.org> # 4.14+
Signed-off-by: Shanker Donthineni <shankerd@codeaurora.org>
[maz: reworked errata framework integration]
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/kvm/hyp/entry.S')
| -rw-r--r-- | arch/arm64/kvm/hyp/entry.S | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/arch/arm64/kvm/hyp/entry.S b/arch/arm64/kvm/hyp/entry.S index 1f458f7c3b44..e41a161d313a 100644 --- a/arch/arm64/kvm/hyp/entry.S +++ b/arch/arm64/kvm/hyp/entry.S @@ -209,15 +209,3 @@ alternative_endif eret ENDPROC(__fpsimd_guest_restore) - -ENTRY(__qcom_hyp_sanitize_btac_predictors) - /** - * Call SMC64 with Silicon provider serviceID 23<<8 (0xc2001700) - * 0xC2000000-0xC200FFFF: assigned to SiP Service Calls - * b15-b0: contains SiP functionID - */ - movz x0, #0x1700 - movk x0, #0xc200, lsl #16 - smc #0 - ret -ENDPROC(__qcom_hyp_sanitize_btac_predictors) |