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| author | Huacai Chen <chenhc@lemote.com> | 2020-05-23 15:56:34 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-06-04 13:49:04 -0400 |
| commit | 52c07e1cbb6e16a0fe70646b4bc63f714caa0f3b (patch) | |
| tree | 1a65559ce18cb72b3824b3b97691eaa47ef4403e /tools/perf | |
| parent | 3210e2c279fee1076978b49988acdd935a6f7435 (diff) | |
KVM: MIPS: Use root tlb to control guest's CCA for Loongson-3
KVM guest has two levels of address translation: guest tlb translates
GVA to GPA, and root tlb translates GPA to HPA. By default guest's CCA
is controlled by guest tlb, but Loongson-3 maintains all cache coherency
by hardware (including multi-core coherency and I/O DMA coherency) so it
prefers all guest mappings be cacheable mappings. Thus, we use root tlb
to control guest's CCA for Loongson-3.
Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Co-developed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <1590220602-3547-8-git-send-email-chenhc@lemote.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/perf')
0 files changed, 0 insertions, 0 deletions