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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-24 23:17:30 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-24 23:17:30 (GMT) |
commit | 07acfc2a9349a8ce45b236c2624dad452001966b (patch) | |
tree | c40f3eaac18a8320e65af220979223b5cd632b1b /arch/powerpc/kvm/44x_emulate.c | |
parent | b5f4035adfffbcc6b478de5b8c44b618b3124aff (diff) | |
parent | 322728e55aa7834e2fab2786b76df183c4843a12 (diff) | |
download | linux-fsl-qoriq-07acfc2a9349a8ce45b236c2624dad452001966b.tar.xz |
Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM changes from Avi Kivity:
"Changes include additional instruction emulation, page-crossing MMIO,
faster dirty logging, preventing the watchdog from killing a stopped
guest, module autoload, a new MSI ABI, and some minor optimizations
and fixes. Outside x86 we have a small s390 and a very large ppc
update.
Regarding the new (for kvm) rebaseless workflow, some of the patches
that were merged before we switch trees had to be rebased, while
others are true pulls. In either case the signoffs should be correct
now."
Fix up trivial conflicts in Documentation/feature-removal-schedule.txt
arch/powerpc/kvm/book3s_segment.S and arch/x86/include/asm/kvm_para.h.
I suspect the kvm_para.h resolution ends up doing the "do I have cpuid"
check effectively twice (it was done differently in two different
commits), but better safe than sorry ;)
* 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (125 commits)
KVM: make asm-generic/kvm_para.h have an ifdef __KERNEL__ block
KVM: s390: onereg for timer related registers
KVM: s390: epoch difference and TOD programmable field
KVM: s390: KVM_GET/SET_ONEREG for s390
KVM: s390: add capability indicating COW support
KVM: Fix mmu_reload() clash with nested vmx event injection
KVM: MMU: Don't use RCU for lockless shadow walking
KVM: VMX: Optimize %ds, %es reload
KVM: VMX: Fix %ds/%es clobber
KVM: x86 emulator: convert bsf/bsr instructions to emulate_2op_SrcV_nobyte()
KVM: VMX: unlike vmcs on fail path
KVM: PPC: Emulator: clean up SPR reads and writes
KVM: PPC: Emulator: clean up instruction parsing
kvm/powerpc: Add new ioctl to retreive server MMU infos
kvm/book3s: Make kernel emulated H_PUT_TCE available for "PR" KVM
KVM: PPC: bookehv: Fix r8/r13 storing in level exception handler
KVM: PPC: Book3S: Enable IRQs during exit handling
KVM: PPC: Fix PR KVM on POWER7 bare metal
KVM: PPC: Fix stbux emulation
KVM: PPC: bookehv: Use lwz/stw instead of PPC_LL/PPC_STL for 32-bit fields
...
Diffstat (limited to 'arch/powerpc/kvm/44x_emulate.c')
-rw-r--r-- | arch/powerpc/kvm/44x_emulate.c | 51 |
1 files changed, 19 insertions, 32 deletions
diff --git a/arch/powerpc/kvm/44x_emulate.c b/arch/powerpc/kvm/44x_emulate.c index 549bb2c..c8c6157 100644 --- a/arch/powerpc/kvm/44x_emulate.c +++ b/arch/powerpc/kvm/44x_emulate.c @@ -37,22 +37,19 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, unsigned int inst, int *advance) { int emulated = EMULATE_DONE; - int dcrn; - int ra; - int rb; - int rc; - int rs; - int rt; - int ws; + int dcrn = get_dcrn(inst); + int ra = get_ra(inst); + int rb = get_rb(inst); + int rc = get_rc(inst); + int rs = get_rs(inst); + int rt = get_rt(inst); + int ws = get_ws(inst); switch (get_op(inst)) { case 31: switch (get_xop(inst)) { case XOP_MFDCR: - dcrn = get_dcrn(inst); - rt = get_rt(inst); - /* The guest may access CPR0 registers to determine the timebase * frequency, and it must know the real host frequency because it * can directly access the timebase registers. @@ -88,9 +85,6 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, break; case XOP_MTDCR: - dcrn = get_dcrn(inst); - rs = get_rs(inst); - /* emulate some access in kernel */ switch (dcrn) { case DCRN_CPR0_CONFIG_ADDR: @@ -108,17 +102,10 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, break; case XOP_TLBWE: - ra = get_ra(inst); - rs = get_rs(inst); - ws = get_ws(inst); emulated = kvmppc_44x_emul_tlbwe(vcpu, ra, rs, ws); break; case XOP_TLBSX: - rt = get_rt(inst); - ra = get_ra(inst); - rb = get_rb(inst); - rc = get_rc(inst); emulated = kvmppc_44x_emul_tlbsx(vcpu, rt, ra, rb, rc); break; @@ -141,41 +128,41 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, return emulated; } -int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs) +int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val) { int emulated = EMULATE_DONE; switch (sprn) { case SPRN_PID: - kvmppc_set_pid(vcpu, kvmppc_get_gpr(vcpu, rs)); break; + kvmppc_set_pid(vcpu, spr_val); break; case SPRN_MMUCR: - vcpu->arch.mmucr = kvmppc_get_gpr(vcpu, rs); break; + vcpu->arch.mmucr = spr_val; break; case SPRN_CCR0: - vcpu->arch.ccr0 = kvmppc_get_gpr(vcpu, rs); break; + vcpu->arch.ccr0 = spr_val; break; case SPRN_CCR1: - vcpu->arch.ccr1 = kvmppc_get_gpr(vcpu, rs); break; + vcpu->arch.ccr1 = spr_val; break; default: - emulated = kvmppc_booke_emulate_mtspr(vcpu, sprn, rs); + emulated = kvmppc_booke_emulate_mtspr(vcpu, sprn, spr_val); } return emulated; } -int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt) +int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val) { int emulated = EMULATE_DONE; switch (sprn) { case SPRN_PID: - kvmppc_set_gpr(vcpu, rt, vcpu->arch.pid); break; + *spr_val = vcpu->arch.pid; break; case SPRN_MMUCR: - kvmppc_set_gpr(vcpu, rt, vcpu->arch.mmucr); break; + *spr_val = vcpu->arch.mmucr; break; case SPRN_CCR0: - kvmppc_set_gpr(vcpu, rt, vcpu->arch.ccr0); break; + *spr_val = vcpu->arch.ccr0; break; case SPRN_CCR1: - kvmppc_set_gpr(vcpu, rt, vcpu->arch.ccr1); break; + *spr_val = vcpu->arch.ccr1; break; default: - emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, rt); + emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, spr_val); } return emulated; |