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| author | Cédric Le Goater <clg@kaod.org> | 2020-12-10 18:14:38 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-12-10 23:34:07 +0100 |
| commit | 98983675008ab3ae9b37fc7a4bfa083998079215 (patch) | |
| tree | 89963ef4e9044fd90360a1f8820b6432e0ab0497 /arch/powerpc/kvm/book3s_xive.h | |
| parent | powerpc/cacheinfo: Print correct cache-sibling map/list for L2 cache (diff) | |
| download | linux-98983675008ab3ae9b37fc7a4bfa083998079215.tar.xz linux-98983675008ab3ae9b37fc7a4bfa083998079215.zip | |
KVM: PPC: Book3S HV: XIVE: Show detailed configuration in debug output
This is useful to track allocation of the HW resources on per guest
basis. Making sure IPIs are local to the chip of the vCPUs reduces
rerouting between interrupt controllers and gives better performance
in case of pinning. Checking the distribution of VP structures on the
chips also helps in reducing PowerBUS traffic.
[ clg: resurrected show_sources and reworked ouput ]
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201210171450.1933725-2-clg@kaod.org
Diffstat (limited to 'arch/powerpc/kvm/book3s_xive.h')
| -rw-r--r-- | arch/powerpc/kvm/book3s_xive.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s_xive.h b/arch/powerpc/kvm/book3s_xive.h index 382e3a56e789..d5d4fee7ac94 100644 --- a/arch/powerpc/kvm/book3s_xive.h +++ b/arch/powerpc/kvm/book3s_xive.h @@ -290,6 +290,8 @@ extern int (*__xive_vm_h_eoi)(struct kvm_vcpu *vcpu, unsigned long xirr); */ void kvmppc_xive_disable_vcpu_interrupts(struct kvm_vcpu *vcpu); int kvmppc_xive_debug_show_queues(struct seq_file *m, struct kvm_vcpu *vcpu); +void kvmppc_xive_debug_show_sources(struct seq_file *m, + struct kvmppc_xive_src_block *sb); struct kvmppc_xive_src_block *kvmppc_xive_create_src_block( struct kvmppc_xive *xive, int irq); void kvmppc_xive_free_sources(struct kvmppc_xive_src_block *sb); |