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Re: [Qemu-devel] [PATCH v5 22/24] target/arm: Implement ARMv8.5-RNG
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From: |
Peter Maydell |
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Subject: |
Re: [Qemu-devel] [PATCH v5 22/24] target/arm: Implement ARMv8.5-RNG |
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Date: |
Fri, 10 May 2019 17:20:30 +0100 |
On Fri, 10 May 2019 at 17:17, Richard Henderson
<address@hidden> wrote:
>
> On 5/10/19 9:01 AM, Peter Maydell wrote:
> > Don't these need to be marked ARM_CP_IO for the benefit
> > of -icount ?
>
> I don't think so. There's no lock taken, as for mmio devices. It's not not
> related to time, virtual or otherwise. There are no possible exceptions. I
> can't think of anything that would make icount care.
>
> Have I missed something?
If icount decides it needs to replay execution of the TB
which the RNDR access is in, won't it get a different
number back the second time it executes ?
thanks
-- PMM
- [Qemu-devel] [PATCH v5 15/24] linux-user/aarch64: Use qemu_guest_getrandom for PAUTH keys, (continued)
- [Qemu-devel] [PATCH v5 15/24] linux-user/aarch64: Use qemu_guest_getrandom for PAUTH keys, Richard Henderson, 2019/05/09
- [Qemu-devel] [PATCH v5 16/24] linux-user: Remove srand call, Richard Henderson, 2019/05/09
- [Qemu-devel] [PATCH v5 17/24] aspeed/scu: Use qemu_guest_getrandom_nofail, Richard Henderson, 2019/05/09
- [Qemu-devel] [PATCH v5 20/24] hw/misc/exynos4210_rng: Use qemu_guest_getrandom, Richard Henderson, 2019/05/09
- [Qemu-devel] [PATCH v5 19/24] hw/misc/bcm2835_rng: Use qemu_guest_getrandom_nofail, Richard Henderson, 2019/05/09
- [Qemu-devel] [PATCH v5 21/24] target/arm: Put all PAC keys into a structure, Richard Henderson, 2019/05/09
- [Qemu-devel] [PATCH v5 22/24] target/arm: Implement ARMv8.5-RNG, Richard Henderson, 2019/05/09
[Qemu-devel] [PATCH v5 23/24] target/ppc: Use qemu_guest_getrandom for DARN, Richard Henderson, 2019/05/09
[Qemu-devel] [PATCH v5 24/24] target/i386: Implement CPUID_EXT_RDRAND, Richard Henderson, 2019/05/09