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Re: [PATCH 0/2] target/i386: add support for cpu FLUSH_L1D feature and F


From: Emanuele Giuseppe Esposito
Subject: Re: [PATCH 0/2] target/i386: add support for cpu FLUSH_L1D feature and FB_CLEAR capability
Date: Mon, 8 May 2023 17:04:13 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0

Ping?

Am 01/02/2023 um 14:57 schrieb Emanuele Giuseppe Esposito:
> QEMU should be able to show the guest the above feature/capability,
> otherwise we risk to have false vulnerability reports in the guest like in
> /sys/devices/system/cpu/vulnerabilities/mmio_stale_data
> because the mitigation is present only if the guest supports
> (FLUSH_L1D and MD_CLEAR) or FB_CLEAR.
> 
> Emanuele
> 
> Emanuele Giuseppe Esposito (2):
>   target/i386: add support for FLUSH_L1D feature
>   target/i386: add support for FB_CLEAR feature
> 
>  target/i386/cpu.h | 3 +++
>  target/i386/cpu.c | 4 ++--
>  2 files changed, 5 insertions(+), 2 deletions(-)
> 




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