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| author | Nicholas Piggin <npiggin@gmail.com> | 2022-03-07 13:26:25 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-03-08 13:14:01 +1100 |
| commit | f771b55731fc82b1e8e9ef123f6f1b8d8c92bc63 (patch) | |
| tree | dc980fbef42797e89c87159e16c6bd25c05b3a12 /arch/powerpc/kernel/setup_64.c | |
| parent | 839d893b4067da14b9c46fda2dfd88b80aeed551 (diff) | |
KVM: PPC: Use KVM_CAP_PPC_AIL_MODE_3
Use KVM_CAP_PPC_AIL_MODE_3 to advertise the capability to set the AIL
resource mode to 3 with the H_SET_MODE hypercall. This capability
differs between processor types and KVM types (PR, HV, Nested HV), and
affects guest-visible behaviour.
QEMU will implement a cap-ail-mode-3 to control this behaviour[1], and
use the KVM CAP if available to determine KVM support[2].
[1] https://lists.nongnu.org/archive/html/qemu-ppc/2022-02/msg00437.html
[2] https://lists.nongnu.org/archive/html/qemu-ppc/2022-02/msg00439.html
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
[mpe: Rebase onto 93b71801a827 from kvm-ppc-cap-210 branch, add EXPORT_SYMBOL]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220222064727.2314380-4-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc/kernel/setup_64.c')
0 files changed, 0 insertions, 0 deletions