diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/powerpc/kvm/book3s_32_sr.S')
| -rw-r--r-- | ANDROID_3.4.5/arch/powerpc/kvm/book3s_32_sr.S | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/kvm/book3s_32_sr.S b/ANDROID_3.4.5/arch/powerpc/kvm/book3s_32_sr.S deleted file mode 100644 index 7e06a6fc..00000000 --- a/ANDROID_3.4.5/arch/powerpc/kvm/book3s_32_sr.S +++ /dev/null @@ -1,143 +0,0 @@ -/* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, version 2, as - * published by the Free Software Foundation. - * - * 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - * Copyright SUSE Linux Products GmbH 2009 - * - * Authors: Alexander Graf <agraf@suse.de> - */ - -/****************************************************************************** - * * - * Entry code * - * * - *****************************************************************************/ - -.macro LOAD_GUEST_SEGMENTS - - /* Required state: - * - * MSR = ~IR|DR - * R1 = host R1 - * R2 = host R2 - * R3 = shadow vcpu - * all other volatile GPRS = free except R4, R6 - * SVCPU[CR] = guest CR - * SVCPU[XER] = guest XER - * SVCPU[CTR] = guest CTR - * SVCPU[LR] = guest LR - */ - -#define XCHG_SR(n) lwz r9, (SVCPU_SR+(n*4))(r3); \ - mtsr n, r9 - - XCHG_SR(0) - XCHG_SR(1) - XCHG_SR(2) - XCHG_SR(3) - XCHG_SR(4) - XCHG_SR(5) - XCHG_SR(6) - XCHG_SR(7) - XCHG_SR(8) - XCHG_SR(9) - XCHG_SR(10) - XCHG_SR(11) - XCHG_SR(12) - XCHG_SR(13) - XCHG_SR(14) - XCHG_SR(15) - - /* Clear BATs. */ - -#define KVM_KILL_BAT(n, reg) \ - mtspr SPRN_IBAT##n##U,reg; \ - mtspr SPRN_IBAT##n##L,reg; \ - mtspr SPRN_DBAT##n##U,reg; \ - mtspr SPRN_DBAT##n##L,reg; \ - - li r9, 0 - KVM_KILL_BAT(0, r9) - KVM_KILL_BAT(1, r9) - KVM_KILL_BAT(2, r9) - KVM_KILL_BAT(3, r9) - -.endm - -/****************************************************************************** - * * - * Exit code * - * * - *****************************************************************************/ - -.macro LOAD_HOST_SEGMENTS - - /* Register usage at this point: - * - * R1 = host R1 - * R2 = host R2 - * R12 = exit handler id - * R13 = shadow vcpu - SHADOW_VCPU_OFF - * SVCPU.* = guest * - * SVCPU[CR] = guest CR - * SVCPU[XER] = guest XER - * SVCPU[CTR] = guest CTR - * SVCPU[LR] = guest LR - * - */ - - /* Restore BATs */ - - /* We only overwrite the upper part, so we only restoree - the upper part. */ -#define KVM_LOAD_BAT(n, reg, RA, RB) \ - lwz RA,(n*16)+0(reg); \ - lwz RB,(n*16)+4(reg); \ - mtspr SPRN_IBAT##n##U,RA; \ - mtspr SPRN_IBAT##n##L,RB; \ - lwz RA,(n*16)+8(reg); \ - lwz RB,(n*16)+12(reg); \ - mtspr SPRN_DBAT##n##U,RA; \ - mtspr SPRN_DBAT##n##L,RB; \ - - lis r9, BATS@ha - addi r9, r9, BATS@l - tophys(r9, r9) - KVM_LOAD_BAT(0, r9, r10, r11) - KVM_LOAD_BAT(1, r9, r10, r11) - KVM_LOAD_BAT(2, r9, r10, r11) - KVM_LOAD_BAT(3, r9, r10, r11) - - /* Restore Segment Registers */ - - /* 0xc - 0xf */ - - li r0, 4 - mtctr r0 - LOAD_REG_IMMEDIATE(r3, 0x20000000 | (0x111 * 0xc)) - lis r4, 0xc000 -3: mtsrin r3, r4 - addi r3, r3, 0x111 /* increment VSID */ - addis r4, r4, 0x1000 /* address of next segment */ - bdnz 3b - - /* 0x0 - 0xb */ - - /* 'current->mm' needs to be in r4 */ - tophys(r4, r2) - lwz r4, MM(r4) - tophys(r4, r4) - /* This only clobbers r0, r3, r4 and r5 */ - bl switch_mmu_context - -.endm |