diff options
| author | Fangyu Yu <fangyu.yu@linux.alibaba.com> | 2026-04-03 23:30:17 +0800 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2026-04-04 13:46:46 +0530 |
| commit | ec92248431be7ad08742e0d1dff5109cec5ef905 (patch) | |
| tree | a0eb7ed80518fb1e7a1bbc254378259f4d0d3383 /tools/perf/scripts/python/bin/stackcollapse-record | |
| parent | efcac8424ba6ab75f2e16be9b0ccfdf60b13b294 (diff) | |
RISC-V: KVM: Cache gstage pgd_levels in struct kvm_gstage
Gstage page-table helpers frequently chase gstage->kvm->arch to
fetch pgd_levels. This adds noise and repeats the same dereference
chain in hot paths.
Add pgd_levels to struct kvm_gstage and initialize it from kvm->arch
when setting up a gstage instance. Introduce kvm_riscv_gstage_init()
to centralize initialization and switch gstage code to use
gstage->pgd_levels.
Suggested-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Fangyu Yu <fangyu.yu@linux.alibaba.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Nutty Liu <nutty.liu@hotmail.com>
Link: https://lore.kernel.org/r/20260403153019.9916-3-fangyu.yu@linux.alibaba.com
Signed-off-by: Anup Patel <anup@brainfault.org>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-record')
0 files changed, 0 insertions, 0 deletions