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Re: [Qemu-arm] [PATCH 09/16] target-arm: Support multiple address spaces
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-arm] [PATCH 09/16] target-arm: Support multiple address spaces in page table walks |
Date: |
Mon, 9 Nov 2015 11:51:52 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 |
On 05/11/2015 19:15, Peter Maydell wrote:
> If we have a secure address space, use it in page table walks:
> * when doing the physical accesses to read descriptors,
> make them through the correct address space
> * when the final result indicates a secure access, pass the
> correct address space index to tlb_set_page_with_attrs()
>
> (The descriptor reads are the only direct physical accesses
> made in target-arm/ for CPUs which might have TrustZone.)
What is the case where you have no secure address space and you have
TrustZone? KVM doesn't have TrustZone, so it should never be in a
secure regime, should it?
Paolo
- [Qemu-arm] [PATCH 16/16] HACK: rearrange the virt memory map to suit OP-TEE, (continued)
- [Qemu-arm] [PATCH 01/16] exec.c: Don't set cpu->as until cpu_address_space_init, Peter Maydell, 2015/11/05
- [Qemu-arm] [PATCH 09/16] target-arm: Support multiple address spaces in page table walks, Peter Maydell, 2015/11/05
- Re: [Qemu-arm] [PATCH 09/16] target-arm: Support multiple address spaces in page table walks, Edgar E. Iglesias, 2015/11/06
- Re: [Qemu-arm] [PATCH 09/16] target-arm: Support multiple address spaces in page table walks,
Paolo Bonzini <=
- Re: [Qemu-arm] [PATCH 09/16] target-arm: Support multiple address spaces in page table walks, Peter Maydell, 2015/11/09
- Re: [Qemu-arm] [PATCH 09/16] target-arm: Support multiple address spaces in page table walks, Paolo Bonzini, 2015/11/09
- Re: [Qemu-arm] [PATCH 09/16] target-arm: Support multiple address spaces in page table walks, Peter Maydell, 2015/11/09
- Re: [Qemu-arm] [PATCH 09/16] target-arm: Support multiple address spaces in page table walks, Paolo Bonzini, 2015/11/09
- Re: [Qemu-arm] [PATCH 09/16] target-arm: Support multiple address spaces in page table walks, Peter Maydell, 2015/11/09
- Re: [Qemu-arm] [PATCH 09/16] target-arm: Support multiple address spaces in page table walks, Peter Maydell, 2015/11/13
[Qemu-arm] [PATCH 11/16] memory: Add address_space_init_shareable(), Peter Maydell, 2015/11/05