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| author | Oliver Upton <[email protected]> | 2024-06-20 16:46:40 +0000 |
|---|---|---|
| committer | Oliver Upton <[email protected]> | 2024-06-20 19:01:20 +0000 |
| commit | b3d29a8230998b36afecf494b199211d26052785 (patch) | |
| tree | ae515f6812ada34d266e31c1331933685ff4d8ba /tools/perf/util/trace-event-scripting.c | |
| parent | 399debfc97493130167663336a2c3d0d16c2da79 (diff) | |
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 <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Oliver Upton <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions