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| author | Alexander Graf <agraf@suse.de> | 2010-08-03 02:29:27 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-10-24 10:52:11 +0200 |
| commit | df1bfa25d81f9451715ccbbb67551e0f792ceec8 (patch) | |
| tree | c0a214d5acd8f152e53b11f5972d9c19fe413641 /arch/powerpc/kvm | |
| parent | 8e8651783ff2458f31098be7c2abacf2fcab054a (diff) | |
| download | kernel_samsung_smdk4412-df1bfa25d81f9451715ccbbb67551e0f792ceec8.zip kernel_samsung_smdk4412-df1bfa25d81f9451715ccbbb67551e0f792ceec8.tar.gz kernel_samsung_smdk4412-df1bfa25d81f9451715ccbbb67551e0f792ceec8.tar.bz2 | |
KVM: PPC: Put segment registers in shared page
Now that the actual mtsr doesn't do anything anymore, we can move the sr
contents over to the shared page, so a guest can directly read and write
its sr contents from guest context.
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/kvm')
| -rw-r--r-- | arch/powerpc/kvm/book3s.c | 7 | ||||
| -rw-r--r-- | arch/powerpc/kvm/book3s_32_mmu.c | 12 | ||||
| -rw-r--r-- | arch/powerpc/kvm/powerpc.c | 2 |
3 files changed, 10 insertions, 11 deletions
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index 34472af..02a9cb1 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -1161,10 +1161,9 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, sregs->u.s.ppc64.slb[i].slbv = vcpu3s->slb[i].origv; } } else { - for (i = 0; i < 16; i++) { - sregs->u.s.ppc32.sr[i] = vcpu3s->sr[i]; - sregs->u.s.ppc32.sr[i] = vcpu3s->sr[i]; - } + for (i = 0; i < 16; i++) + sregs->u.s.ppc32.sr[i] = vcpu->arch.shared->sr[i]; + for (i = 0; i < 8; i++) { sregs->u.s.ppc32.ibat[i] = vcpu3s->ibat[i].raw; sregs->u.s.ppc32.dbat[i] = vcpu3s->dbat[i].raw; diff --git a/arch/powerpc/kvm/book3s_32_mmu.c b/arch/powerpc/kvm/book3s_32_mmu.c index d4ff76f..c8cefdd 100644 --- a/arch/powerpc/kvm/book3s_32_mmu.c +++ b/arch/powerpc/kvm/book3s_32_mmu.c @@ -88,9 +88,9 @@ static int kvmppc_mmu_book3s_32_xlate_bat(struct kvm_vcpu *vcpu, gva_t eaddr, static int kvmppc_mmu_book3s_32_esid_to_vsid(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid); -static u32 find_sr(struct kvmppc_vcpu_book3s *vcpu_book3s, gva_t eaddr) +static u32 find_sr(struct kvm_vcpu *vcpu, gva_t eaddr) { - return vcpu_book3s->sr[(eaddr >> 28) & 0xf]; + return vcpu->arch.shared->sr[(eaddr >> 28) & 0xf]; } static u64 kvmppc_mmu_book3s_32_ea_to_vp(struct kvm_vcpu *vcpu, gva_t eaddr, @@ -211,7 +211,7 @@ static int kvmppc_mmu_book3s_32_xlate_pte(struct kvm_vcpu *vcpu, gva_t eaddr, int i; int found = 0; - sre = find_sr(vcpu_book3s, eaddr); + sre = find_sr(vcpu, eaddr); dprintk_pte("SR 0x%lx: vsid=0x%x, raw=0x%x\n", eaddr >> 28, sr_vsid(sre), sre); @@ -335,13 +335,13 @@ static int kvmppc_mmu_book3s_32_xlate(struct kvm_vcpu *vcpu, gva_t eaddr, static u32 kvmppc_mmu_book3s_32_mfsrin(struct kvm_vcpu *vcpu, u32 srnum) { - return to_book3s(vcpu)->sr[srnum]; + return vcpu->arch.shared->sr[srnum]; } static void kvmppc_mmu_book3s_32_mtsrin(struct kvm_vcpu *vcpu, u32 srnum, ulong value) { - to_book3s(vcpu)->sr[srnum] = value; + vcpu->arch.shared->sr[srnum] = value; kvmppc_mmu_map_segment(vcpu, srnum << SID_SHIFT); } @@ -358,7 +358,7 @@ static int kvmppc_mmu_book3s_32_esid_to_vsid(struct kvm_vcpu *vcpu, ulong esid, u64 gvsid = esid; if (vcpu->arch.shared->msr & (MSR_DR|MSR_IR)) { - sr = find_sr(to_book3s(vcpu), ea); + sr = find_sr(vcpu, ea); if (sr_valid(sr)) gvsid = sr_vsid(sr); } diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 496d7a5..028891c 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -66,7 +66,7 @@ int kvmppc_kvm_pv(struct kvm_vcpu *vcpu) vcpu->arch.magic_page_pa = param1; vcpu->arch.magic_page_ea = param2; - r2 = 0; + r2 = KVM_MAGIC_FEAT_SR; r = HC_EV_SUCCESS; break; |