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