diff options
| author | Oliver Upton <oupton@google.com> | 2021-08-18 20:21:32 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-08-19 09:08:57 +0100 |
| commit | e10ecb4d6c0761ca545b3946df1707a41f9f845e (patch) | |
| tree | 62d7304a52743a1e606b1ba475f8595bd47b36fe /drivers/net/wwan/iosm/iosm_ipc_flash.c | |
| parent | 6826c6849b46aaa91300201213701eb861af4ba0 (diff) | |
KVM: arm64: Enforce reserved bits for PSCI target affinities
According to the PSCI specification, ARM DEN 0022D, 5.1.4 "CPU_ON", the
CPU_ON function takes a target_cpu argument that is bit-compatible with
the affinity fields in MPIDR_EL1. All other bits in the argument are
RES0. Note that the same constraints apply to the target_affinity
argument for the AFFINITY_INFO call.
Enforce the spec by returning INVALID_PARAMS if a guest incorrectly sets
a RES0 bit.
Signed-off-by: Oliver Upton <oupton@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210818202133.1106786-4-oupton@google.com
Diffstat (limited to 'drivers/net/wwan/iosm/iosm_ipc_flash.c')
0 files changed, 0 insertions, 0 deletions