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| author | Thomas Gleixner <tglx@linutronix.de> | 2018-05-10 20:42:48 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-05-17 17:09:21 +0200 |
| commit | 47c61b3955cf712cadfc25635bf9bc174af030ea (patch) | |
| tree | d25d09aa3b84755bd8296a9e0e6a32c3884cd5ac /arch/x86/kvm/cpuid.c | |
| parent | be6fcb5478e95bb1c91f489121238deb3abca46a (diff) | |
| download | linux-47c61b3955cf712cadfc25635bf9bc174af030ea.tar.bz2 | |
x86/speculation, KVM: Implement support for VIRT_SPEC_CTRL/LS_CFG
Add the necessary logic for supporting the emulated VIRT_SPEC_CTRL MSR to
x86_virt_spec_ctrl(). If either X86_FEATURE_LS_CFG_SSBD or
X86_FEATURE_VIRT_SPEC_CTRL is set then use the new guest_virt_spec_ctrl
argument to check whether the state must be modified on the host. The
update reuses speculative_store_bypass_update() so the ZEN-specific sibling
coordination can be reused.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kvm/cpuid.c')
0 files changed, 0 insertions, 0 deletions