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Re: [Qemu-devel] KVM/QEMU on Raspberry Pi 3
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From: |
Laszlo Ersek |
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Subject: |
Re: [Qemu-devel] KVM/QEMU on Raspberry Pi 3 |
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Date: |
Thu, 2 Feb 2017 18:57:51 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.0 |
On 02/02/17 18:48, Ard Biesheuvel wrote:
>>> ESR 0x02000000 FAR 0x1DE7EC7EDBADC0DE
>>>
>
>
> $ git grep -C5 -ni 0x1DE7EC7EDBADC0DE
> arch/arm64/kvm/sys_regs.h-105-static inline void reset_unknown(struct
> kvm_vcpu *vcpu,
> arch/arm64/kvm/sys_regs.h-106- const struct
> sys_reg_desc *r)
> arch/arm64/kvm/sys_regs.h-107-{
> arch/arm64/kvm/sys_regs.h-108- BUG_ON(!r->reg);
> arch/arm64/kvm/sys_regs.h-109- BUG_ON(r->reg >= NR_SYS_REGS);
> arch/arm64/kvm/sys_regs.h:110: vcpu_sys_reg(vcpu, r->reg) =
> 0x1de7ec7edbadc0deULL;
> arch/arm64/kvm/sys_regs.h-111-}
> arch/arm64/kvm/sys_regs.h-112-
>
> In other words (or rather, in words), KVM is triggering this exception
> in the guest deliberately, which I suspect has something to do with
> the lack of a GIC? Are you using these patches Peter mentions?
"detected bad code". Mind = blown.