From: Emanuele Giuseppe Esposito <eesposit@redhat.com>
To: qemu-devel@nongnu.org
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Richard Henderson <richard.henderson@linaro.org>,
Maxim Levitsky <mlevitsk@redhat.com>,
Yang Zhong <yang.zhong@linux.intel.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Jing Liu <jing2.liu@intel.com>,
Emanuele Giuseppe Esposito <eesposit@redhat.com>
Subject: [PATCH 0/2] target/i386: add support for cpu FLUSH_L1D feature and FB_CLEAR capability
Date: Wed, 1 Feb 2023 08:57:57 -0500 [thread overview]
Message-ID: <20230201135759.555607-1-eesposit@redhat.com> (raw)
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(-)
--
2.39.1
next reply other threads:[~2023-02-01 13:58 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-01 13:57 Emanuele Giuseppe Esposito [this message]
2023-02-01 13:57 ` [PATCH 1/2] target/i386: add support for FLUSH_L1D feature Emanuele Giuseppe Esposito
2023-02-01 13:57 ` [PATCH 2/2] target/i386: add support for FB_CLEAR feature Emanuele Giuseppe Esposito
2023-05-08 15:04 ` [PATCH 0/2] target/i386: add support for cpu FLUSH_L1D feature and FB_CLEAR capability Emanuele Giuseppe Esposito
2023-05-09 9:05 ` Paolo Bonzini
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