KVM: PPC: Book3S HV: Decouple the debug timing from the P8 entry path

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We are currently doing the timing for debug purposes of the P9 entry
path using the accumulators and terminology defined by the old entry
path for P8 machines.

Not only the "real-mode" and "napping" mentions are out of place for
the P9 Radix entry path but also we cannot change them because the
timing code is coupled to the structures defined in struct
kvm_vcpu_arch.

Add a new CONFIG_KVM_BOOK3S_HV_P9_TIMING to enable the timing code for
the P9 entry path. For now, just add the new CONFIG and duplicate the
structures. A subsequent patch will add the P9 changes.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220525130554.2614394-4-farosas@linux.ibm.com

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This commit is contained in:

Fabiano Rosas 2022-05-25 10:05:52 -03:00 • committed by Michael Ellerman

parent 3f8ed993be

commit c3fa64c99c

4 changed files with 33 additions and 4 deletions

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8

arch/powerpc/include/asm/kvm_host.h

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14

arch/powerpc/kvm/Kconfig

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13

arch/powerpc/kvm/book3s_hv.c

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2

arch/powerpc/kvm/book3s_hv_p9_entry.c

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