Messages in this thread | | | Date | Wed, 4 Jan 2017 11:33:22 +0100 | From | Christoffer Dall <> | Subject | Re: [PATCH v2 2/5] arm64: Work around Falkor erratum 1003 |
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On Thu, Dec 29, 2016 at 05:43:32PM -0500, Christopher Covington wrote: > From: Shanker Donthineni <shankerd@codeaurora.org> > > On the Qualcomm Datacenter Technologies Falkor v1 CPU, memory accesses may > allocate TLB entries using an incorrect ASID when TTBRx_EL1 is being > updated. Changing the TTBRx_EL1[ASID] and TTBRx_EL1[BADDR] fields > separately using a reserved ASID will ensure that there are no TLB entries > with incorrect ASID after changing the the ASID.
When we restore guest state in KVM, we completely save and restore TTBRx_EL1 from EL2. Would that be affected by this erratum?
Thanks, -Christoffer
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