[v1] KVM: x86: vcpu->arch.pio* cleanups

[PATCH 0/6] KVM: x86: vcpu->arch.pio* cleanups

Paolo Bonzini posted 6 patches 3 years, 10 months ago

Diff against v2
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arch/x86/kvm/trace.h |   2 +-
arch/x86/kvm/x86.c   | 119 ++++++++++++++++++-------------------------
2 files changed, 50 insertions(+), 71 deletions(-)

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[PATCH 0/6] KVM: x86: vcpu->arch.pio* cleanups

Posted by Paolo Bonzini 3 years, 10 months ago

These patches complete the job started by commit 3b27de271839 ("KVM:
x86: split the two parts of emulator_pio_in", 2021-10-22).  The commit
message eloquently said that emulator_pio_in_out "currently hardcodes
vcpu->arch.pio_data as the source/destination buffer, which sucks but
will be fixed after the more severe SEV-ES buffer overflow".  Some time
has passed and it's high time to do it.

After this series, in-kernel PIO does not use vcpu->arch.pio* anymore;
it is only used by complete_emulator_pio_in.

Paolo


Paolo Bonzini (6):
  KVM: x86: inline kernel_pio into its sole caller
  KVM: x86: move all vcpu->arch.pio* setup in emulator_pio_in_out
  KVM: x86: wean in-kernel PIO from vcpu->arch.pio*
  KVM: x86: wean fast IN from emulator_pio_in
  KVM: x86: de-underscorify __emulator_pio_in
  KVM: SEV-ES: reuse advance_sev_es_emulated_ins for OUT too

 arch/x86/kvm/trace.h |   2 +-
 arch/x86/kvm/x86.c   | 119 ++++++++++++++++++-------------------------
 2 files changed, 50 insertions(+), 71 deletions(-)

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2.31.1