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Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size ex
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error |
Date: |
Sat, 23 Feb 2019 16:18:15 +0000 |
On Sat, 23 Feb 2019 at 16:05, Natanael Copa <address@hidden> wrote:
> I was thinking of something in the lines of:
>
> typedef volatile uint16_t __attribute__((__may_alias__)) volatile_uint16_t;
> static inline int lduw_he_p(const void *ptr)
> {
> volatile_uint16_t r = *(volatile_uint16_t*)ptr;
> return r;
> }
This won't correctly handle accesses with unaligned pointers,
I'm afraid. We rely on these functions correctly working
with pointers that are potentially unaligned.
thanks
-- PMM
- Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error, (continued)
- Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error, Dr. David Alan Gilbert, 2019/02/22
- Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error, Paolo Bonzini, 2019/02/22
- Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error, Dr. David Alan Gilbert, 2019/02/22
- Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error, Natanael Copa, 2019/02/23
- Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error, Paolo Bonzini, 2019/02/26
- Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error, Fernando Casas Schössow, 2019/02/28
- Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error, Natanael Copa, 2019/02/23
- Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error,
Peter Maydell <=
- Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error, Natanael Copa, 2019/02/25
- Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error, Peter Maydell, 2019/02/25
- Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error, Fernando Casas Schössow, 2019/02/25
- Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error, Natanael Copa, 2019/02/25
- Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error, Peter Maydell, 2019/02/25
- Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error, Natanael Copa, 2019/02/25
- Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error, Fernando Casas Schössow, 2019/02/25
- Message not available
- Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error, Fernando Casas Schössow, 2019/02/25
- Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error, Peter Maydell, 2019/02/28
- Re: [Qemu-devel] [Qemu-block] Guest unresponsive after Virtqueue size exceeded error, Fernando Casas Schössow, 2019/02/23