KVM: PPC: Remove mmio_vsx_tx_sx_enabled in KVM MMIO emulation

Browse source

Originally PPC KVM MMIO emulation uses only 0~31#(5 bits) for VSR
reg number, and use mmio_vsx_tx_sx_enabled field together for
0~63# VSR regs.

Currently PPC KVM MMIO emulation is reimplemented with analyse_instr()
assistance.  analyse_instr() returns 0~63 for VSR register number, so
it is not necessary to use additional mmio_vsx_tx_sx_enabled field
any more.

This patch extends related reg bits (expand io_gpr to u16 from u8
and use 6 bits for VSR reg#), so that mmio_vsx_tx_sx_enabled can
be removed.

Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>

...

This commit is contained in:

Simon Guo 2018-05-28 09:48:26 +08:00 • committed by Paul Mackerras

parent 6f0d349d92

commit 4eeb85568e

3 changed files with 26 additions and 28 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

17

arch/powerpc/include/asm/kvm_host.h

View file

7

arch/powerpc/kvm/emulate_loadstore.c

View file

30

arch/powerpc/kvm/powerpc.c

View file