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| author |   Cédric Le Goater <clg@kaod.org> | 2019-04-18 12:39:35 +0200 |
|---|---|---|
| committer |   Paul Mackerras <paulus@ozlabs.org> | 2019-04-30 19:35:16 +1000 |
| commit | e4945b9da52b36052b7c509ca31c5ead1d165b24 (patch) | |
| tree | ea7e9816f2a88dacd6988983c126455d7eec79a0 /arch/powerpc/include/uapi | |
| parent | KVM: PPC: Book3S HV: XIVE: Add a control to dirty the XIVE EQ pages (diff) | |
| download | linux-dev-e4945b9da52b36052b7c509ca31c5ead1d165b24.tar.xz linux-dev-e4945b9da52b36052b7c509ca31c5ead1d165b24.zip | |
KVM: PPC: Book3S HV: XIVE: Add get/set accessors for the VP XIVE state
The state of the thread interrupt management registers needs to be
collected for migration. These registers are cached under the
'xive_saved_state.w01' field of the VCPU when the VPCU context is
pulled from the HW thread. An OPAL call retrieves the backup of the
IPB register in the underlying XIVE NVT structure and merges it in the
KVM state.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Diffstat (limited to 'arch/powerpc/include/uapi')
| -rw-r--r-- | arch/powerpc/include/uapi/asm/kvm.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h index 12744608a61c..cd3f16b70a2e 100644 --- a/arch/powerpc/include/uapi/asm/kvm.h +++ b/arch/powerpc/include/uapi/asm/kvm.h @@ -482,6 +482,8 @@ struct kvm_ppc_cpu_char { #define KVM_REG_PPC_ICP_PPRI_SHIFT 16 /* pending irq priority */ #define KVM_REG_PPC_ICP_PPRI_MASK 0xff +#define KVM_REG_PPC_VP_STATE (KVM_REG_PPC | KVM_REG_SIZE_U128 | 0x8d) + /* Device control API: PPC-specific devices */ #define KVM_DEV_MPIC_GRP_MISC 1 #define KVM_DEV_MPIC_BASE_ADDR 0 /* 64-bit */ |