diff options
| author |   Oliver Upton <oliver.upton@linux.dev> | 2024-06-20 16:46:48 +0000 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2024-06-20 19:04:49 +0000 |
| commit | 5326303bb7d9da79d94d0e347a6e212eaae8801d (patch) | |
| tree | e1488e12aba2f3fbdfd242a4ec72cd745f120969 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | KVM: arm64: nv: Load guest FP state for ZCR_EL2 trap (diff) | |
| download | wireguard-linux-5326303bb7d9da79d94d0e347a6e212eaae8801d.tar.xz wireguard-linux-5326303bb7d9da79d94d0e347a6e212eaae8801d.zip | |
KVM: arm64: nv: Honor guest hypervisor's FP/SVE traps in CPTR_EL2
Start folding the guest hypervisor's FP/SVE traps into the value
programmed in hardware. Note that as of writing this is dead code, since
KVM does a full put() / load() for every nested exception boundary which
saves + flushes the FP/SVE state.
However, this will become useful when we can keep the guest's FP/SVE
state alive across a nested exception boundary and the host no longer
needs to conservatively program traps.
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240620164653.1130714-12-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions