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| author | Oliver Upton <oliver.upton@linux.dev> | 2024-06-20 19:46:40 +0300 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2024-06-20 22:01:20 +0300 |
| commit | b3d29a8230998b36afecf494b199211d26052785 (patch) | |
| tree | ae515f6812ada34d266e31c1331933685ff4d8ba /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 399debfc97493130167663336a2c3d0d16c2da79 (diff) | |
| download | linux-b3d29a8230998b36afecf494b199211d26052785.tar.xz | |
KVM: arm64: nv: Handle ZCR_EL2 traps
Unlike other SVE-related registers, ZCR_EL2 takes a sysreg trap to EL2
when HCR_EL2.NV = 1. KVM still needs to honor the guest hypervisor's
trap configuration, which expects an SVE trap (i.e. ESR_EL2.EC = 0x19)
when CPTR traps are enabled for the vCPU's current context.
Otherwise, if the guest hypervisor has traps disabled, emulate the
access by mapping the requested VL into ZCR_EL1.
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240620164653.1130714-4-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions