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| author | Paul Mackerras <paulus@ozlabs.org> | 2016-11-18 13:11:42 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@ozlabs.org> | 2016-11-24 09:24:23 +1100 |
| commit | e9cf1e085647b433ccd98582681b17121ecfdc21 (patch) | |
| tree | 6147ebf857ac4c8ff7439c0f2d038745ea6763be /Documentation | |
| parent | 83677f551e0a6ad43061053e7d6208abcd2707f0 (diff) | |
| download | linux-stable-e9cf1e085647b433ccd98582681b17121ecfdc21.tar.gz linux-stable-e9cf1e085647b433ccd98582681b17121ecfdc21.tar.bz2 linux-stable-e9cf1e085647b433ccd98582681b17121ecfdc21.zip | |
KVM: PPC: Book3S HV: Add new POWER9 guest-accessible SPRs
This adds code to handle two new guest-accessible special-purpose
registers on POWER9: TIDR (thread ID register) and PSSCR (processor
stop status and control register). They are context-switched
between host and guest, and the guest values can be read and set
via the one_reg interface.
The PSSCR contains some fields which are guest-accessible and some
which are only accessible in hypervisor mode. We only allow the
guest-accessible fields to be read or set by userspace.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/virtual/kvm/api.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index a7596e9fdf06..8a5ebd118313 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -2023,6 +2023,8 @@ registers, find a list below: PPC | KVM_REG_PPC_WORT | 64 PPC | KVM_REG_PPC_SPRG9 | 64 PPC | KVM_REG_PPC_DBSR | 32 + PPC | KVM_REG_PPC_TIDR | 64 + PPC | KVM_REG_PPC_PSSCR | 64 PPC | KVM_REG_PPC_TM_GPR0 | 64 ... PPC | KVM_REG_PPC_TM_GPR31 | 64 |