On 2/3/25 04:54, Paolo Bonzini wrote:
On 2/3/25 04:18, Richard Henderson wrote:
v1: [email protected]
For v2, immediately disable 64-on-32 TCG.
I *suspect* that we should disable 64-on-32 for *all* accelerators.
The idea that an i686 binary on an x86_64 host may be used to spawn
an x86_64 guest via kvm is silly and a bit more than niche.
At least Xen used to be commonly used with 32-bit dom0, because it saved memory and dom0
would map in guest buffers as needed. I'm not sure how common that is these days, perhaps
Stefano knows.
As a data-point, debian does not ship libxen-dev for i686.
We cannot build-test this configuration at all.
I can build-test Xen for armhf, and I guess it would use i386-softmmu; it's unclear
whether x86_64-softmmu and aarch64-softmmu are relevant or useful for an armhf host, or as
an armhf binary running on an aarch64 host.
r~
