qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[PATCH v3 0/6] Support for new CPU model SapphireRapids


From: Lei Wang
Subject: [PATCH v3 0/6] Support for new CPU model SapphireRapids
Date: Fri, 6 Jan 2023 00:38:20 -0800

This series aims to add a new CPU model SapphireRapids, and tries to
address the problem stated in
https://lore.kernel.org/all/20220812055751.14553-1-lei4.wang@intel.com/T/#mcf67dbd1ad37c65d7988c36a2b267be9afd2fb30,
so that named CPU model can define its own AMX values, and QEMU won't
pass the wrong AMX values to KVM in future platforms if they have
different values supported.

The original patch is
https://lore.kernel.org/all/20220812055751.14553-1-lei4.wang@intel.com/T/#u.

---

Changelog:

v3:
 - Rebase on the latest QEMU (d1852caab131ea898134fdcea8c14bc2ee75fbe9).
 - v2: 
https://lore.kernel.org/qemu-devel/20221102085256.81139-1-lei4.wang@intel.com/

v2:
 - Fix when passing all zeros of AMX-related CPUID, QEMU will warn
   unsupported.
 - Remove unnecessary function definition and make code cleaner.
 - Fix some typos.
 - v1: 
https://lore.kernel.org/qemu-devel/20221027020036.373140-1-lei4.wang@intel.com/T/#t


Lei Wang (6):
  i386: Introduce FeatureWordInfo for AMX CPUID leaf 0x1D and 0x1E
  i386: Remove unused parameter "uint32_t bit" in
    feature_word_description()
  i386: Introduce new struct "MultiBitFeatureInfo" for multi-bit
    features
  i386: Mask and report unavailable multi-bit feature values
  i386: Initialize AMX CPUID leaves with corresponding env->features[]
    leaves
  i386: Add new CPU model SapphireRapids

 target/i386/cpu-internal.h |  11 ++
 target/i386/cpu.c          | 311 +++++++++++++++++++++++++++++++++++--
 target/i386/cpu.h          |  16 ++
 3 files changed, 322 insertions(+), 16 deletions(-)


base-commit: d1852caab131ea898134fdcea8c14bc2ee75fbe9
-- 
2.34.1




reply via email to

[Prev in Thread] Current Thread [Next in Thread]