| Message ID | 1368942460-15577-6-git-send-email-sanjayl@kymasys.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hello. On 19-05-2013 9:47, Sanjay Lal wrote: > Signed-off-by: Sanjay Lal <sanjayl@kymasys.com> > --- > arch/mips/kvm/kvm_vz_locore.S | 74 +++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 74 insertions(+) > create mode 100644 arch/mips/kvm/kvm_vz_locore.S > diff --git a/arch/mips/kvm/kvm_vz_locore.S b/arch/mips/kvm/kvm_vz_locore.S > new file mode 100644 > index 0000000..6d037d7 > --- /dev/null > +++ b/arch/mips/kvm/kvm_vz_locore.S > @@ -0,0 +1,74 @@ > +/* > + * This file is subject to the terms and conditions of the GNU General Public > + * License. See the file "COPYING" in the main directory of this archive > + * for more details. > + * > + * KVM/MIPS: Assembler support for hardware virtualization extensions > + * > + * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. > + * Authors: Yann Le Du <ledu@kymasys.com> > + */ > + > +#include <asm/asm.h> > +#include <asm/asmmacro.h> > +#include <asm/regdef.h> > +#include <asm/mipsregs.h> > +#include <asm/asm-offsets.h> > +#include <asm/mipsvzregs.h> > + > +#define MIPSX(name) mips32_ ## name > + > +/* > + * This routine sets GuestCtl1.RID to GUESTCTL1_VZ_ROOT_GUESTID > + * Inputs: none > + */ > +LEAF(MIPSX(ClearGuestRID)) > + .set push > + .set mips32r2 > + .set noreorder > + mfc0 t0, CP0_GUESTCTL1 > + addiu t1, zero, GUESTCTL1_VZ_ROOT_GUESTID > + ins t0, t1, GUESTCTL1_RID_SHIFT, GUESTCTL1_RID_WIDTH > + mtc0 t0, CP0_GUESTCTL1 # Set GuestCtl1.RID = GUESTCTL1_VZ_ROOT_GUESTID > + ehb > + j ra Not jr? > + nop # BD Slot Instruction in the delay slot is usually indented by extra space. > + .set pop > +END(MIPSX(ClearGuestRID)) > + > + > +/* > + * This routine sets GuestCtl1.RID to a new value > + * Inputs: a0 = new GuestRID value (right aligned) > + */ > +LEAF(MIPSX(SetGuestRID)) > + .set push > + .set mips32r2 > + .set noreorder > + mfc0 t0, CP0_GUESTCTL1 > + ins t0, a0, GUESTCTL1_RID_SHIFT, GUESTCTL1_RID_WIDTH > + mtc0 t0, CP0_GUESTCTL1 # Set GuestCtl1.RID > + ehb > + j ra > + nop # BD Slot Same here... > + .set pop > +END(MIPSX(SetGuestRID)) > + > + > + /* > + * This routine sets GuestCtl1.RID to GuestCtl1.ID > + * Inputs: none > + */ > +LEAF(MIPSX(SetGuestRIDtoGuestID)) > + .set push > + .set mips32r2 > + .set noreorder > + mfc0 t0, CP0_GUESTCTL1 # Get current GuestID > + ext t1, t0, GUESTCTL1_ID_SHIFT, GUESTCTL1_ID_WIDTH > + ins t0, t1, GUESTCTL1_RID_SHIFT, GUESTCTL1_RID_WIDTH > + mtc0 t0, CP0_GUESTCTL1 # Set GuestCtl1.RID = GuestCtl1.ID > + ehb > + j ra > + nop # BD Slot ... and here. > + .set pop > +END(MIPSX(SetGuestRIDtoGuestID)) WBR, Sergei -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/mips/kvm/kvm_vz_locore.S b/arch/mips/kvm/kvm_vz_locore.S new file mode 100644 index 0000000..6d037d7 --- /dev/null +++ b/arch/mips/kvm/kvm_vz_locore.S @@ -0,0 +1,74 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * KVM/MIPS: Assembler support for hardware virtualization extensions + * + * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. + * Authors: Yann Le Du <ledu@kymasys.com> + */ + +#include <asm/asm.h> +#include <asm/asmmacro.h> +#include <asm/regdef.h> +#include <asm/mipsregs.h> +#include <asm/asm-offsets.h> +#include <asm/mipsvzregs.h> + +#define MIPSX(name) mips32_ ## name + +/* + * This routine sets GuestCtl1.RID to GUESTCTL1_VZ_ROOT_GUESTID + * Inputs: none + */ +LEAF(MIPSX(ClearGuestRID)) + .set push + .set mips32r2 + .set noreorder + mfc0 t0, CP0_GUESTCTL1 + addiu t1, zero, GUESTCTL1_VZ_ROOT_GUESTID + ins t0, t1, GUESTCTL1_RID_SHIFT, GUESTCTL1_RID_WIDTH + mtc0 t0, CP0_GUESTCTL1 # Set GuestCtl1.RID = GUESTCTL1_VZ_ROOT_GUESTID + ehb + j ra + nop # BD Slot + .set pop +END(MIPSX(ClearGuestRID)) + + +/* + * This routine sets GuestCtl1.RID to a new value + * Inputs: a0 = new GuestRID value (right aligned) + */ +LEAF(MIPSX(SetGuestRID)) + .set push + .set mips32r2 + .set noreorder + mfc0 t0, CP0_GUESTCTL1 + ins t0, a0, GUESTCTL1_RID_SHIFT, GUESTCTL1_RID_WIDTH + mtc0 t0, CP0_GUESTCTL1 # Set GuestCtl1.RID + ehb + j ra + nop # BD Slot + .set pop +END(MIPSX(SetGuestRID)) + + + /* + * This routine sets GuestCtl1.RID to GuestCtl1.ID + * Inputs: none + */ +LEAF(MIPSX(SetGuestRIDtoGuestID)) + .set push + .set mips32r2 + .set noreorder + mfc0 t0, CP0_GUESTCTL1 # Get current GuestID + ext t1, t0, GUESTCTL1_ID_SHIFT, GUESTCTL1_ID_WIDTH + ins t0, t1, GUESTCTL1_RID_SHIFT, GUESTCTL1_RID_WIDTH + mtc0 t0, CP0_GUESTCTL1 # Set GuestCtl1.RID = GuestCtl1.ID + ehb + j ra + nop # BD Slot + .set pop +END(MIPSX(SetGuestRIDtoGuestID))
Signed-off-by: Sanjay Lal <sanjayl@kymasys.com> --- arch/mips/kvm/kvm_vz_locore.S | 74 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 arch/mips/kvm/kvm_vz_locore.S