Marc Zyngier 1e0cf16cda KVM: arm/arm64: Initialise host's MPIDRs by reading the actual register ... As part of setting up the host context, we populate its MPIDR by using cpu_logical_map(). It turns out that contrary to arm64, cpu_logical_map() on 32bit ARM doesn't return the *full* MPIDR, but a truncated version. This leaves the host MPIDR slightly corrupted after the first run of a VM, since we won't correctly restore the MPIDR on exit. Oops. Since we cannot trust cpu_logical_map(), let's adopt a different strategy. We move the initialization of the host CPU context as part of the per-CPU initialization (which, in retrospect, makes a lot of sense), and directly read the MPIDR from the HW. This is guaranteed to work on both arm and arm64. Reported-by: Andre Przywara <Andre.Przywara@arm.com> Tested-by: Andre Przywara <Andre.Przywara@arm.com> Fixes: 32f1395519 ("arm/arm64: KVM: Statically configure the host's view of MPIDR") Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>		2019-07-08 16:29:48 +01:00
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kvm	KVM: arm/arm64: Initialise host's MPIDRs by reading the actual register	2019-07-08 16:29:48 +01:00
lib	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00