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authorAthira Rajeev <atrajeev@linux.vnet.ibm.com>2020-07-17 17:38:17 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2020-07-22 14:56:41 +0300
commit5752fe0b811bb3cee531c52074921c6dd09dc42d (patch)
tree607a951edb6e6047264c3ae446ea73ec20e254d4 /tools/arch
parentc718547e4a92d74089f862457adf1f617c498e16 (diff)
downloadlinux-5752fe0b811bb3cee531c52074921c6dd09dc42d.tar.xz
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.h5
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
*/