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authorPaul Mackerras <paulus@ozlabs.org>2018-10-08 16:30:58 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2018-10-09 16:04:27 +1100
commitfd0944baad806dfb4c777124ec712c55b714ff51 (patch)
treee48fd04986af4a05fd2d5a867fdbf4ea7cc2b318 /arch/powerpc/kvm/book3s_pr.c
parent9a94d3ee2d159927c0f8e5078228eadbce8dda43 (diff)
downloadlinux-0-day-fd0944baad806dfb4c777124ec712c55b714ff51.tar.gz
linux-0-day-fd0944baad806dfb4c777124ec712c55b714ff51.tar.xz
KVM: PPC: Use ccr field in pt_regs struct embedded in vcpu struct
When the 'regs' field was added to struct kvm_vcpu_arch, the code was changed to use several of the fields inside regs (e.g., gpr, lr, etc.) but not the ccr field, because the ccr field in struct pt_regs is 64 bits on 64-bit platforms, but the cr field in kvm_vcpu_arch is only 32 bits. This changes the code to use the regs.ccr field instead of cr, and changes the assembly code on 64-bit platforms to use 64-bit loads and stores instead of 32-bit ones. Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kvm/book3s_pr.c')
-rw-r--r--arch/powerpc/kvm/book3s_pr.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 059683e4e67a2..4efd65d9e8280 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -167,7 +167,7 @@ void kvmppc_copy_to_svcpu(struct kvm_vcpu *vcpu)
svcpu->gpr[11] = vcpu->arch.regs.gpr[11];
svcpu->gpr[12] = vcpu->arch.regs.gpr[12];
svcpu->gpr[13] = vcpu->arch.regs.gpr[13];
- svcpu->cr = vcpu->arch.cr;
+ svcpu->cr = vcpu->arch.regs.ccr;
svcpu->xer = vcpu->arch.regs.xer;
svcpu->ctr = vcpu->arch.regs.ctr;
svcpu->lr = vcpu->arch.regs.link;
@@ -249,7 +249,7 @@ void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu)
vcpu->arch.regs.gpr[11] = svcpu->gpr[11];
vcpu->arch.regs.gpr[12] = svcpu->gpr[12];
vcpu->arch.regs.gpr[13] = svcpu->gpr[13];
- vcpu->arch.cr = svcpu->cr;
+ vcpu->arch.regs.ccr = svcpu->cr;
vcpu->arch.regs.xer = svcpu->xer;
vcpu->arch.regs.ctr = svcpu->ctr;
vcpu->arch.regs.link = svcpu->lr;