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authorPavel Fedin <p.fedin@samsung.com>2015-12-04 15:03:13 +0300
committerMarc Zyngier <marc.zyngier@arm.com>2015-12-04 16:29:54 +0000
commit2ec5be3dbfdcb672cdafde463a5f2c0bfe522c3d (patch)
tree5172656b0fc303906f951be316cb9a2e902e249e /arch/arm64/kvm/sys_regs_generic_v8.c
parent3fec037d0fb292c4e5b2a7f8d132b5f9d5487ff3 (diff)
downloadlinux-2ec5be3dbfdcb672cdafde463a5f2c0bfe522c3d.tar.bz2
arm64: KVM: Correctly handle zero register in system register accesses
System register accesses also use zero register for Rt == 31, and therefore using it will also result in getting SP value instead. This patch makes them also using new accessors, introduced by the previous patch. Since register value is no longer directly associated with storage inside vCPU context structure, we introduce a dedicated storage for it in struct sys_reg_params. This refactor also gets rid of "massive hack" in kvm_handle_cp_64(). Signed-off-by: Pavel Fedin <p.fedin@samsung.com> Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'arch/arm64/kvm/sys_regs_generic_v8.c')
-rw-r--r--arch/arm64/kvm/sys_regs_generic_v8.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kvm/sys_regs_generic_v8.c b/arch/arm64/kvm/sys_regs_generic_v8.c
index ccd3e359b800..ed90578fa120 100644
--- a/arch/arm64/kvm/sys_regs_generic_v8.c
+++ b/arch/arm64/kvm/sys_regs_generic_v8.c
@@ -37,7 +37,7 @@ static bool access_actlr(struct kvm_vcpu *vcpu,
if (p->is_write)
return ignore_write(vcpu, p);
- *vcpu_reg(vcpu, p->Rt) = vcpu_sys_reg(vcpu, ACTLR_EL1);
+ p->regval = vcpu_sys_reg(vcpu, ACTLR_EL1);
return true;
}