diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/powerpc/kvm/book3s_interrupts.S')
| -rw-r--r-- | ANDROID_3.4.5/arch/powerpc/kvm/book3s_interrupts.S | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/kvm/book3s_interrupts.S b/ANDROID_3.4.5/arch/powerpc/kvm/book3s_interrupts.S deleted file mode 100644 index 3e35383b..00000000 --- a/ANDROID_3.4.5/arch/powerpc/kvm/book3s_interrupts.S +++ /dev/null @@ -1,201 +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> - */ - -#include <asm/ppc_asm.h> -#include <asm/kvm_asm.h> -#include <asm/reg.h> -#include <asm/page.h> -#include <asm/asm-offsets.h> -#include <asm/exception-64s.h> - -#if defined(CONFIG_PPC_BOOK3S_64) - -#define ULONG_SIZE 8 -#define FUNC(name) GLUE(.,name) - -#elif defined(CONFIG_PPC_BOOK3S_32) - -#define ULONG_SIZE 4 -#define FUNC(name) name - -#endif /* CONFIG_PPC_BOOK3S_XX */ - - -#define VCPU_GPR(n) (VCPU_GPRS + (n * ULONG_SIZE)) -#define VCPU_LOAD_NVGPRS(vcpu) \ - PPC_LL r14, VCPU_GPR(r14)(vcpu); \ - PPC_LL r15, VCPU_GPR(r15)(vcpu); \ - PPC_LL r16, VCPU_GPR(r16)(vcpu); \ - PPC_LL r17, VCPU_GPR(r17)(vcpu); \ - PPC_LL r18, VCPU_GPR(r18)(vcpu); \ - PPC_LL r19, VCPU_GPR(r19)(vcpu); \ - PPC_LL r20, VCPU_GPR(r20)(vcpu); \ - PPC_LL r21, VCPU_GPR(r21)(vcpu); \ - PPC_LL r22, VCPU_GPR(r22)(vcpu); \ - PPC_LL r23, VCPU_GPR(r23)(vcpu); \ - PPC_LL r24, VCPU_GPR(r24)(vcpu); \ - PPC_LL r25, VCPU_GPR(r25)(vcpu); \ - PPC_LL r26, VCPU_GPR(r26)(vcpu); \ - PPC_LL r27, VCPU_GPR(r27)(vcpu); \ - PPC_LL r28, VCPU_GPR(r28)(vcpu); \ - PPC_LL r29, VCPU_GPR(r29)(vcpu); \ - PPC_LL r30, VCPU_GPR(r30)(vcpu); \ - PPC_LL r31, VCPU_GPR(r31)(vcpu); \ - -/***************************************************************************** - * * - * Guest entry / exit code that is in kernel module memory (highmem) * - * * - ****************************************************************************/ - -/* Registers: - * r3: kvm_run pointer - * r4: vcpu pointer - */ -_GLOBAL(__kvmppc_vcpu_run) - -kvm_start_entry: - /* Write correct stack frame */ - mflr r0 - PPC_STL r0,PPC_LR_STKOFF(r1) - - /* Save host state to the stack */ - PPC_STLU r1, -SWITCH_FRAME_SIZE(r1) - - /* Save r3 (kvm_run) and r4 (vcpu) */ - SAVE_2GPRS(3, r1) - - /* Save non-volatile registers (r14 - r31) */ - SAVE_NVGPRS(r1) - - /* Save CR */ - mfcr r14 - stw r14, _CCR(r1) - - /* Save LR */ - PPC_STL r0, _LINK(r1) - - /* Load non-volatile guest state from the vcpu */ - VCPU_LOAD_NVGPRS(r4) - -kvm_start_lightweight: - -#ifdef CONFIG_PPC_BOOK3S_64 - PPC_LL r3, VCPU_HFLAGS(r4) - rldicl r3, r3, 0, 63 /* r3 &= 1 */ - stb r3, HSTATE_RESTORE_HID5(r13) -#endif /* CONFIG_PPC_BOOK3S_64 */ - - PPC_LL r4, VCPU_SHADOW_MSR(r4) /* get shadow_msr */ - - /* Jump to segment patching handler and into our guest */ - bl FUNC(kvmppc_entry_trampoline) - nop - -/* - * This is the handler in module memory. It gets jumped at from the - * lowmem trampoline code, so it's basically the guest exit code. - * - */ - -.global kvmppc_handler_highmem -kvmppc_handler_highmem: - - /* - * Register usage at this point: - * - * R1 = host R1 - * R2 = host R2 - * R12 = exit handler id - * R13 = PACA - * SVCPU.* = guest * - * - */ - - /* R7 = vcpu */ - PPC_LL r7, GPR4(r1) - - PPC_STL r14, VCPU_GPR(r14)(r7) - PPC_STL r15, VCPU_GPR(r15)(r7) - PPC_STL r16, VCPU_GPR(r16)(r7) - PPC_STL r17, VCPU_GPR(r17)(r7) - PPC_STL r18, VCPU_GPR(r18)(r7) - PPC_STL r19, VCPU_GPR(r19)(r7) - PPC_STL r20, VCPU_GPR(r20)(r7) - PPC_STL r21, VCPU_GPR(r21)(r7) - PPC_STL r22, VCPU_GPR(r22)(r7) - PPC_STL r23, VCPU_GPR(r23)(r7) - PPC_STL r24, VCPU_GPR(r24)(r7) - PPC_STL r25, VCPU_GPR(r25)(r7) - PPC_STL r26, VCPU_GPR(r26)(r7) - PPC_STL r27, VCPU_GPR(r27)(r7) - PPC_STL r28, VCPU_GPR(r28)(r7) - PPC_STL r29, VCPU_GPR(r29)(r7) - PPC_STL r30, VCPU_GPR(r30)(r7) - PPC_STL r31, VCPU_GPR(r31)(r7) - - /* Pass the exit number as 3rd argument to kvmppc_handle_exit */ - mr r5, r12 - - /* Restore r3 (kvm_run) and r4 (vcpu) */ - REST_2GPRS(3, r1) - bl FUNC(kvmppc_handle_exit) - - /* If RESUME_GUEST, get back in the loop */ - cmpwi r3, RESUME_GUEST - beq kvm_loop_lightweight - - cmpwi r3, RESUME_GUEST_NV - beq kvm_loop_heavyweight - -kvm_exit_loop: - - PPC_LL r4, _LINK(r1) - mtlr r4 - - lwz r14, _CCR(r1) - mtcr r14 - - /* Restore non-volatile host registers (r14 - r31) */ - REST_NVGPRS(r1) - - addi r1, r1, SWITCH_FRAME_SIZE - blr - -kvm_loop_heavyweight: - - PPC_LL r4, _LINK(r1) - PPC_STL r4, (PPC_LR_STKOFF + SWITCH_FRAME_SIZE)(r1) - - /* Load vcpu and cpu_run */ - REST_2GPRS(3, r1) - - /* Load non-volatile guest state from the vcpu */ - VCPU_LOAD_NVGPRS(r4) - - /* Jump back into the beginning of this function */ - b kvm_start_lightweight - -kvm_loop_lightweight: - - /* We'll need the vcpu pointer */ - REST_GPR(4, r1) - - /* Jump back into the beginning of this function */ - b kvm_start_lightweight |