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| author | Andrew Jones <[email protected]> | 2022-10-02 10:19:05 +0530 |
|---|---|---|
| committer | Anup Patel <[email protected]> | 2022-10-02 10:19:05 +0530 |
| commit | 56852c6211971798dfbe4098c8a8528b59234de2 (patch) | |
| tree | 631a9fc4677d51f62689adf8c2b95beca7ae9d56 /Documentation/filesystems/caching/backend-api.rst | |
| parent | afd5dde9a186b8fc5742fff707f184760c4af1a9 (diff) | |
RISC-V: KVM: Expose Zicbom to the guest
Guests may use the cbo.inval,clean,flush instructions when the
CPU has the Zicbom extension and the hypervisor sets henvcfg.CBIE
(for cbo.inval) and henvcfg.CBCFE (for cbo.clean,flush).
Add Zicbom support for KVM guests which may be enabled and
disabled from KVM userspace using the ISA extension ONE_REG API.
Also opportunistically switch the other isa extension checks in
kvm_riscv_vcpu_update_config() to riscv_isa_extension_available().
Signed-off-by: Andrew Jones <[email protected]>
Reviewed-by: Conor Dooley <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
Signed-off-by: Anup Patel <[email protected]>
Diffstat (limited to 'Documentation/filesystems/caching/backend-api.rst')
0 files changed, 0 insertions, 0 deletions