diff options
| author |   Athira Rajeev <atrajeev@linux.vnet.ibm.com> | 2020-07-17 10:38:17 -0400 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2020-07-22 21:56:41 +1000 |
| commit | 5752fe0b811bb3cee531c52074921c6dd09dc42d (patch) | |
| tree | 607a951edb6e6047264c3ae446ea73ec20e254d4 /tools/arch | |
| parent | powerpc/perf: Add support for ISA3.1 PMU SPRs (diff) | |
| download | linux-dev-5752fe0b811bb3cee531c52074921c6dd09dc42d.tar.xz linux-dev-5752fe0b811bb3cee531c52074921c6dd09dc42d.zip | |
KVM: PPC: Book3S HV: Save/restore new PMU registers
Power ISA v3.1 has added new performance monitoring unit (PMU) special
purpose registers (SPRs). They are:
Monitor Mode Control Register 3 (MMCR3)
Sampled Instruction Event Register A (SIER2)
Sampled Instruction Event Register B (SIER3)
Add support to save/restore these new SPRs while entering/exiting
guest. Also include changes to support KVM_REG_PPC_MMCR3/SIER2/SIER3.
Add new SPRs to KVM API documentation.
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1594996707-3727-6-git-send-email-atrajeev@linux.vnet.ibm.com
Diffstat (limited to 'tools/arch')
| -rw-r--r-- | tools/arch/powerpc/include/uapi/asm/kvm.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/arch/powerpc/include/uapi/asm/kvm.h b/tools/arch/powerpc/include/uapi/asm/kvm.h index 264e266a85bf..c3af3f324c5a 100644 --- a/tools/arch/powerpc/include/uapi/asm/kvm.h +++ b/tools/arch/powerpc/include/uapi/asm/kvm.h @@ -640,6 +640,11 @@ struct kvm_ppc_cpu_char { #define KVM_REG_PPC_ONLINE (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xbf) #define KVM_REG_PPC_PTCR (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xc0) +/* POWER10 registers */ +#define KVM_REG_PPC_MMCR3 (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xc1) +#define KVM_REG_PPC_SIER2 (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xc2) +#define KVM_REG_PPC_SIER3 (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xc3) + /* Transactional Memory checkpointed state: * This is all GPRs, all VSX regs and a subset of SPRs */ |