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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-ia64-devel] [PATCH 6/8] ia64/pv_ops xen: xen paravirtualization of hand written assembly code. inst_xen.h
Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx> --- arch/ia64/xen/inst_xen.h | 307 ++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 307 insertions(+), 0 deletions(-) create mode 100644 arch/ia64/xen/inst_xen.h diff --git a/arch/ia64/xen/inst_xen.h b/arch/ia64/xen/inst_xen.h new file mode 100644 index 0000000..c0bd736 --- /dev/null +++ b/arch/ia64/xen/inst_xen.h @@ -0,0 +1,307 @@ +/****************************************************************************** + * inst_xen.h + * + * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp> + * VA Linux Systems Japan K.K. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#define IA64_ASM_PARAVIRTUALIZED_XEN + +#define ia64_ivt xen_ivt + +#define __paravirt_switch_to xen_switch_to +#define __paravirt_leave_syscall xen_leave_syscall +#define __paravirt_work_processed_syscall xen_work_processed_syscall +#define __paravirt_leave_kernel xen_leave_kernel +#define __paravirt_pending_syscall_end xen_work_pending_syscall_end +#define __paravirt_work_processed_syscall_target \ + xen_work_processed_syscall + +#define MOV_FROM_IFA(reg) \ + movl reg = XSI_IFA; \ + ;; \ + ld8 reg = [reg] + +#define MOV_FROM_ITIR(reg) \ + movl reg = XSI_ITIR; \ + ;; \ + ld8 reg = [reg] + +#define MOV_FROM_ISR(reg) \ + movl reg = XSI_ISR; \ + ;; \ + ld8 reg = [reg] + +#define MOV_FROM_IHA(reg) \ + movl reg = XSI_IHA; \ + ;; \ + ld8 reg = [reg] + +#define MOV_FROM_IPSR(reg) \ + movl reg = XSI_IPSR; \ + ;; \ + ld8 reg = [reg] + +#define MOV_FROM_IIM(reg) \ + movl reg = XSI_IIM; \ + ;; \ + ld8 reg = [reg] + +#define MOV_FROM_IIP(reg) \ + movl reg = XSI_IIP; \ + ;; \ + ld8 reg = [reg] + +#if 0 +#define MOV_FROM_IVR(reg, clob) \ + clob = r8; \ + ;; \ + XEN_HYPER_GET_IVR \ + ;; \ + mov reg = r8; \ + ;; \ + mov r8 = clob +#else +#define MOV_FROM_IVR(reg) \ + ;; \ + XEN_HYPER_GET_IVR \ + ;; \ + mov reg = r8 +#endif + +#define MOV_FROM_PSR(pred, reg, clob) \ + (pred) mov clob = r8; \ + (pred) XEN_HYPER_GET_PSR; \ + ;; \ + (pred) mov reg = r8; \ + (pred) mov r8 = clob; \ + ;; + + +#define MOV_TO_IFA(reg, clob) \ + movl clob = XSI_IFA; \ + ;; \ + st8 [clob] = reg \ + +#define MOV_TO_ITIR(pred, reg, clob) \ + (pred) movl clob = XSI_ITIR; \ + ;; \ + (pred) st8 [clob] = reg + +#define MOV_TO_IHA(pred, reg, clob) \ + (pred) movl clob = XSI_IHA; \ + ;; \ + (pred) st8 [clob] = reg + +#define MOV_TO_IPSR(reg, clob) \ + movl clob = XSI_IPSR; \ + ;; \ + st8 [clob] = r29; \ + ;; + +#define MOV_TO_IFS(pred, reg, clob) \ + (pred) movl clob = XSI_IFS; \ + ;; \ + (pred) st8 [clob] = reg; \ + ;; + +#define MOV_TO_IIP(reg, clob) \ + movl clob = XSI_IIP; \ + ;; \ + st8 [clob] = reg + +#if 0 +#define MOV_TO_KR(kr, reg, clob0, clob1) \ + mov clob0 = r8; \ + mov clob1 = r9; \ + ;; \ + mov r8 = IA64_KR_ ## kr ; \ + mov r9 = reg; \ + ;; \ + XEN_HYPER_SET_KR; \ + mov r8 = clob0; \ + mov r9 = clob1 +#else +#define MOV_TO_KR(kr, reg) \ + mov r8 = IA64_KR_ ## kr; \ + mov r9 = reg; \ + ;; \ + XEN_HYPER_SET_KR +#endif + + +#define ITC_I(pred, reg, clob) \ + (pred) mov clob = r8; \ + (pred) mov r8 = reg; \ + ;; \ + (pred) XEN_HYPER_ITC_I; \ + ;; \ + (pred) mov r8 = clob; \ + ;; + +#define ITC_D(pred, reg, clob) \ + (pred) mov clob = r8; \ + (pred) mov r8 = reg; \ + ;; \ + (pred) XEN_HYPER_ITC_D; \ + ;; \ + (pred) mov r8 = clob; \ + ;; + +#define ITC_I_AND_D(pred_i, pred_d, reg, clob) \ + mov clob = r8; \ + mov r8 = reg; \ + ;; \ + (pred_i) XEN_HYPER_ITC_I; \ + ;; \ + (pred_d) XEN_HYPER_ITC_D; \ + ;; \ + mov r8 = clob; \ + ;; + +#define THASH(pred, reg0, reg1, clob) \ + (pred) mov clob = r8; \ + (pred) mov r8 = reg1; \ + (pred) XEN_HYPER_THASH; \ + ;; \ + (pred) mov reg0 = r8; \ + (pred) mov r8 = clob; \ + ;; + +#define SSM_PSR_IC_AND_DEFAULT_BITS(clob0, clob1) \ + mov clob0 = 1; \ + movl clob1 = XSI_PSR_IC; \ + ;; \ + st4 [clob1] = clob0 \ + ;; + +#define SSM_PSR_IC_AND_SRLZ_D(clob0, clob1) \ + ;; \ + srlz.d; \ + mov clob1 = 1; \ + movl clob0=XSI_PSR_IC; \ + ;; \ + st4 [clob0] = clob1 + +#define RSM_PSR_IC(clob) \ + movl clob = XSI_PSR_IC; \ + ;; \ + st4 [clob] = r0; \ + ;; + +/* pred will be clobbered */ +#define MASK_TO_PEND_OFS (-1) +#define SSM_PSR_I(pred, clob) \ + (pred) movl clob = XSI_PSR_I_ADDR \ + ;; \ + (pred) ld8 clob = [clob] \ + ;; \ + /* if (pred) vpsr.i = 1 */ \ + /* if (pred) (vcpu->vcpu_info->evtchn_upcall_mask)=0 */ \ + (pred) st1 [clob] = r0, MASK_TO_PEND_OFS \ + ;; \ + /* if (vcpu->vcpu_info->evtchn_upcall_pending) */ \ + (pred) ld1 clob = [clob] \ + ;; \ + (pred) cmp.ne pred, p0 = clob, r0 \ + ;; \ + (pred) XEN_HYPER_SSM_I /* do areal ssm psr.i */ + +#define RSM_PSR_I(pred, clob0, clob1) \ + movl clob0 = XSI_PSR_I_ADDR; \ + mov clob1 = 1; \ + ;; \ + ld8 clob0 = [clob0]; \ + ;; \ + (pred) st1 [clob0] = clob1 + +#define RSM_PSR_I_IC(clob0, clob1, clob2) \ + movl clob0 = XSI_PSR_I_ADDR; \ + movl clob1 = XSI_PSR_IC; \ + ;; \ + ld8 clob0 = [clob0]; \ + mov clob2 = 1; \ + ;; \ + /* note: clears both vpsr.i and vpsr.ic! */ \ + st1 [clob0] = clob2; \ + st4 [clob1] = r0; \ + ;; + +#define RSM_PSR_DT \ + XEN_HYPER_RSM_PSR_DT + +#define RSM_PSR_DT_AND_SRLZ_I \ + XEN_HYPER_RSM_PSR_DT + +#define SSM_PSR_DT_AND_SRLZ_I \ + XEN_HYPER_SSM_PSR_DT + +#define BSW_0(clob0, clob1, clob2) \ + ;; \ + /* r16-r31 all now hold bank1 values */ \ + mov clob2 = ar.unat; \ + movl clob0 = XSI_BANK1_R16; \ + movl clob1 = XSI_BANK1_R16 + 8; \ + ;; \ + .mem.offset 0, 0; st8.spill [clob0] = r16, 16; \ + .mem.offset 8, 0; st8.spill [clob1] = r17, 16; \ + ;; \ + .mem.offset 0, 0; st8.spill [clob0] = r18, 16; \ + .mem.offset 8, 0; st8.spill [clob1] = r19, 16; \ + ;; \ + .mem.offset 0, 0; st8.spill [clob0] = r20, 16; \ + .mem.offset 8, 0; st8.spill [clob1] = r21, 16; \ + ;; \ + .mem.offset 0, 0; st8.spill [clob0] = r22, 16; \ + .mem.offset 8, 0; st8.spill [clob1] = r23, 16; \ + ;; \ + .mem.offset 0, 0; st8.spill [clob0] = r24, 16; \ + .mem.offset 8, 0; st8.spill [clob1] = r25, 16; \ + ;; \ + .mem.offset 0, 0; st8.spill [clob0] = r26, 16; \ + .mem.offset 8, 0; st8.spill [clob1] = r27, 16; \ + ;; \ + .mem.offset 0, 0; st8.spill [clob0] = r28, 16; \ + .mem.offset 8, 0; st8.spill [clob1] = r29, 16; \ + ;; \ + .mem.offset 0, 0; st8.spill [clob0] = r30, 16; \ + .mem.offset 8, 0; st8.spill [clob1] = r31, 16; \ + ;; \ + mov clob1 = ar.unat; \ + movl clob0 = XSI_B1NAT; \ + ;; \ + st8 [clob0] = clob1; \ + mov ar.unat = clob2; \ + movl clob0 = XSI_BANKNUM; \ + ;; \ + st4 [clob0] = r0 + + /* xen_bsw1 clobbers clob1 */ +#define BSW_1(clob0, clob1) \ + mov clob0 = b0; \ + br.call.sptk b0 = xen_bsw1; \ + ;; \ + mov b0=clob0; \ + ;; + +#define COVER \ + XEN_HYPER_COVER + +#define RFI \ + XEN_HYPER_RFI; \ + dv_serialize_data -- 1.5.3 _______________________________________________ Xen-ia64-devel mailing list Xen-ia64-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-ia64-devel
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