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| author | Cédric Le Goater <clg@kaod.org> | 2019-04-18 12:39:32 +0200 |
|---|---|---|
| committer | Paul Mackerras <paulus@ozlabs.org> | 2019-04-30 19:35:16 +1000 |
| commit | 5ca806474859a0e94584b3a63f9509a25758408e (patch) | |
| tree | 6fdcc8070443e749d03f7e884890e626ca96fe6f /arch/powerpc/include/uapi | |
| parent | 13ce3297c5766b9541b6a7a255794c5168a7ae1a (diff) | |
| download | linux-5ca806474859a0e94584b3a63f9509a25758408e.tar.gz linux-5ca806474859a0e94584b3a63f9509a25758408e.tar.bz2 linux-5ca806474859a0e94584b3a63f9509a25758408e.zip | |
KVM: PPC: Book3S HV: XIVE: Add a global reset control
This control is to be used by the H_INT_RESET hcall from QEMU. Its
purpose is to clear all configuration of the sources and EQs. This is
necessary in case of a kexec (for a kdump kernel for instance) to make
sure that no remaining configuration is left from the previous boot
setup so that the new kernel can start safely from a clean state.
The queue 7 is ignored when the XIVE device is configured to run in
single escalation mode. Prio 7 is used by escalations.
The XIVE VP is kept enabled as the vCPU is still active and connected
to the XIVE device.
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 | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h index 85005400fd86..f045f9dee42e 100644 --- a/arch/powerpc/include/uapi/asm/kvm.h +++ b/arch/powerpc/include/uapi/asm/kvm.h @@ -679,6 +679,7 @@ struct kvm_ppc_cpu_char { /* POWER9 XIVE Native Interrupt Controller */ #define KVM_DEV_XIVE_GRP_CTRL 1 +#define KVM_DEV_XIVE_RESET 1 #define KVM_DEV_XIVE_GRP_SOURCE 2 /* 64-bit source identifier */ #define KVM_DEV_XIVE_GRP_SOURCE_CONFIG 3 /* 64-bit source identifier */ #define KVM_DEV_XIVE_GRP_EQ_CONFIG 4 /* 64-bit EQ identifier */ |