Fixes/extensions to allow HVM guests to use AMD hardware MSR_SPEC_CTRL
facilities.
No PV support yet - that will require some substantially more careful
unpicking of the PV entry/exit asm.
Andrew Cooper (9):
x86/cpuid: Advertise SSB_NO to guests by default
x86/spec-ctrl: Drop use_spec_ctrl boolean
x86/spec-ctrl: Introduce new has_spec_ctrl boolean
x86/spec-ctrl: Don't use spec_ctrl_{enter,exit}_idle() for S3
x86/spec-ctrl: Record the last write to MSR_SPEC_CTRL
x86/spec-ctrl: Use common MSR_SPEC_CTRL logic for AMD
x86/svm: VMEntry/Exit logic for MSR_SPEC_CTRL
x86/msr: AMD MSR_SPEC_CTRL infrastructure
x86/cpuid: Enable MSR_SPEC_CTRL in SVM guests by default
xen/arch/x86/acpi/power.c | 8 +++-
xen/arch/x86/cpu/amd.c | 2 +-
xen/arch/x86/cpuid.c | 16 +++++--
xen/arch/x86/hvm/svm/entry.S | 12 +++---
xen/arch/x86/hvm/svm/svm.c | 40 +++++++++++++++++
xen/arch/x86/include/asm/current.h | 2 +-
xen/arch/x86/include/asm/hvm/svm/svm.h | 3 ++
xen/arch/x86/include/asm/msr.h | 9 ++++
xen/arch/x86/include/asm/spec_ctrl_asm.h | 7 +++
xen/arch/x86/msr.c | 8 ++--
xen/arch/x86/setup.c | 5 ++-
xen/arch/x86/smpboot.c | 7 ++-
xen/arch/x86/spec_ctrl.c | 66 ++++++++++++++++++++---------
xen/include/public/arch-x86/cpufeatureset.h | 18 ++++----
xen/tools/gen-cpuid.py | 14 +++---
15 files changed, 166 insertions(+), 51 deletions(-)
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2.11.0
