diff options
| author | Mark Rutland <mark.rutland@arm.com> | 2018-12-06 13:31:44 +0100 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2018-12-18 16:14:45 +0100 |
| commit | d1878af3a5a6ac00bc8a3edfecf80539ee9c546e (patch) | |
| tree | 1303c8d4b65b2afb65082ae216d3a3bdda1d509e /arch/arm64/kvm | |
| parent | KVM: arm/arm64: Fix VMID alloc race by reverting to lock-less (diff) | |
| download | linux-d1878af3a5a6ac00bc8a3edfecf80539ee9c546e.tar.xz linux-d1878af3a5a6ac00bc8a3edfecf80539ee9c546e.zip | |
KVM: arm/arm64: Log PSTATE for unhandled sysregs
When KVM traps an unhandled sysreg/coproc access from a guest, it logs
the guest PC. To aid debugging, it would be helpful to know which
exception level the trap came from, along with other PSTATE/CPSR bits,
so let's log the PSTATE/CPSR too.
Acked-by: Christoffer Dall <christoffer.dall@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'arch/arm64/kvm')
| -rw-r--r-- | arch/arm64/kvm/sys_regs.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index 22fbbdbece3c..ecbf67ccabf5 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -1912,8 +1912,8 @@ static void unhandled_cp_access(struct kvm_vcpu *vcpu, WARN_ON(1); } - kvm_err("Unsupported guest CP%d access at: %08lx\n", - cp, *vcpu_pc(vcpu)); + kvm_err("Unsupported guest CP%d access at: %08lx [%08lx]\n", + cp, *vcpu_pc(vcpu), *vcpu_cpsr(vcpu)); print_sys_reg_instr(params); kvm_inject_undefined(vcpu); } @@ -2063,8 +2063,8 @@ static int emulate_sys_reg(struct kvm_vcpu *vcpu, if (likely(r)) { perform_access(vcpu, params, r); } else { - kvm_err("Unsupported guest sys_reg access at: %lx\n", - *vcpu_pc(vcpu)); + kvm_err("Unsupported guest sys_reg access at: %lx [%08lx]\n", + *vcpu_pc(vcpu), *vcpu_cpsr(vcpu)); print_sys_reg_instr(params); kvm_inject_undefined(vcpu); } |