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(-)
--
2.31.1
