Messages in this thread | | | From | Juergen Gross <> | Subject | [PATCH v2 00/11] x86: xen cpuid() cleanup | Date | Thu, 13 Apr 2017 12:11:05 +0200 |
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Reduce special casing of xen_cpuid() by using cpu capabilities instead of faked cpuid nodes.
This cleanup enables us remove the hypervisor specific set_cpu_features callback as the same effect can be reached via setup_[clear|force]_cpu_cap().
Removing the rest faked nodes from xen_cpuid() requires some more work as the remaining cases (mwait leafs and extended topology info) have to be handled at the consumer sides of this information.
Changes in V2: - added several features to this scheme - removed hypervisor specific set_cpu_features() callbacks
Cc: Alok Kataria <akataria@vmware.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: x86@kernel.org Cc: virtualization@lists.linux-foundation.org
Juergen Gross (11): xen: set cpu capabilities from xen_start_kernel() x86/xen: don't indicate DCA support in pv domains x86/xen: use capabilities instead of fake cpuid values for aperf x86/xen: use capabilities instead of fake cpuid values for mtrr x86/xen: use capabilities instead of fake cpuid values for acc x86/xen: use capabilities instead of fake cpuid values for acpi x86/xen: use capabilities instead of fake cpuid values for mwait x86/xen: use capabilities instead of fake cpuid values for x2apic x86/xen: use capabilities instead of fake cpuid values for xsave vmware: set cpu capabilities during platform initialization x86/cpu: remove hypervisor specific set_cpu_features
arch/x86/include/asm/hypervisor.h | 5 --- arch/x86/kernel/cpu/common.c | 1 - arch/x86/kernel/cpu/hypervisor.c | 8 ---- arch/x86/kernel/cpu/vmware.c | 39 ++++++++++--------- arch/x86/xen/enlighten_pv.c | 81 +++++++++++++++------------------------ 5 files changed, 50 insertions(+), 84 deletions(-)
-- 2.12.0
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