On Tue, Feb 06, 2018 at 05:56:04PM +0000, Marc Zyngier wrote: > ARM has recently published a SMC Calling Convention (SMCCC) > specification update[1] that provides an optimised calling convention > and optional, discoverable support for mitigating CVE-2017-5715. ARM > Trusted Firmware (ATF) has already gained such an implementation[2]. > > This series addresses a few things: > > - It provides a KVM implementation of PSCI v1.0, which is a > prerequisite for being able to discover SMCCC v1.1. > > - It allows KVM to advertise SMCCC v1.1, which is de-facto supported > already (it never corrupts any of the guest registers). > > - It implements KVM support for the ARCH_WORKAROUND_1 function that is > used to mitigate CVE-2017-5715 in a guest (if such mitigation is > available on the host). > > - It implements SMCCC v1.1 and ARCH_WORKAROUND_1 discovery support in > the kernel itself. > > - It finally provides firmware callbacks for CVE-2017-5715 for both > kernel and KVM and drop the initial PSCI_GET_VERSION based > mitigation. > > Patch 1 is already merged, and included here for reference. Patches on > top of arm64/for-next/core. Tested on Seattle and Juno, the latter > with ATF implementing SMCCC v1.1. Queued for 4.16. I merged the first patch as well since for-next/core is based on -rc3 and the patch went in afterwards (I dropped cc stable since there is a version with this tag already). Thanks. -- Catalin _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
