openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity
linux/arch/mips/kvm
History
James Hogan 90e9311a34 MIPS; KVM: Convert exception entry to uasm 
Convert the whole of locore.S (assembly to enter guest and handle
exception entry) to be generated dynamically with uasm. This is done
with minimal changes to the resulting code.

The main changes are:
- Some constants are generated by uasm using LUI+ADDIU instead of
  LUI+ORI.
- Loading of lo and hi are swapped around in vcpu_run but not when
  resuming the guest after an exit. Both bits of logic are now generated
  by the same code.
- Register MOVEs in uasm use different ADDU operand ordering to GNU as,
  putting zero register into rs instead of rt.
- The JALR.HB to call the C exit handler is switched to JALR, since the
  hazard barrier would appear to be unnecessary.

This will allow further optimisation in the future to dynamically handle
the capabilities of the CPU.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim KrÄmář <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 		2016-07-05 16:08:46 +02:00
..
00README.txt KVM/MIPS32: Release notes and KVM module Makefile 2013-05-08 03:55:35 +02:00
Kconfig MIPS; KVM: Convert exception entry to uasm 2016-07-05 16:08:46 +02:00
Makefile MIPS; KVM: Convert exception entry to uasm 2016-07-05 16:08:46 +02:00
callback.c MIPS: KVM: Convert EXPORT_SYMBOL to _GPL 2016-01-24 03:13:24 +01:00
commpage.c MIPS: KVM: Move commpage so 0x0 is unmapped 2016-06-15 23:58:36 +02:00
commpage.h MIPS: KVM: Rename files to remove the prefix "kvm_" and "kvm_mips_" 2014-06-30 16:52:03 +02:00
dyntrans.c MIPS: KVM: Move commpage so 0x0 is unmapped 2016-06-15 23:58:36 +02:00
emulate.c MIPS: KVM: Add KScratch registers 2016-06-15 23:58:36 +02:00
entry.c MIPS; KVM: Convert exception entry to uasm 2016-07-05 16:08:46 +02:00
fpu.S MIPS: KVM: Add base guest FPU support 2015-03-27 21:25:14 +00:00
interrupt.c MIPS: KVM: Convert code to kernel sized types 2016-06-14 11:02:41 +02:00
interrupt.h MIPS; KVM: Convert exception entry to uasm 2016-07-05 16:08:46 +02:00
mips.c MIPS; KVM: Convert exception entry to uasm 2016-07-05 16:08:46 +02:00
mmu.c MIPS: KVM: Use host CCA for TLB mappings 2016-06-15 23:58:37 +02:00
msa.S MIPS: KVM: Add base guest MSA support 2015-03-27 21:25:19 +00:00
stats.c MIPS: KVM: Clean up kvm_exit trace event 2016-06-14 11:16:23 +02:00
tlb.c MIPS: KVM: Use host CCA for TLB mappings 2016-06-15 23:58:37 +02:00
trace.h MIPS: KVM: Combine entry trace events into class 2016-06-23 19:17:30 +02:00
trap_emul.c MIPS: KVM: Use mipsregs.h defs for config registers 2016-06-15 23:58:43 +02:00