From: Juergen Gross <jgross@suse.com>
To: linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org
Cc: boris.ostrovsky@oracle.com, Juergen Gross <jgross@suse.com>,
Alok Kataria <akataria@vmware.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
x86@kernel.org, virtualization@lists.linux-foundation.org
Subject: [PATCH v3 00/11] x86: xen cpuid() cleanup
Date: Tue, 18 Apr 2017 08:31:08 +0200 [thread overview]
Message-ID: <20170418063119.11654-1-jgross@suse.com> (raw)
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 V3:
- rewrite patch 9 (xsave) to use xgetbv instruction to test for osxsave
availability (Andrew Cooper)
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 | 95 +++++++++++++++++----------------------
5 files changed, 61 insertions(+), 87 deletions(-)
--
2.12.0
next reply other threads:[~2017-04-18 6:31 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-18 6:31 Juergen Gross [this message]
2017-04-18 6:31 ` [PATCH v3 01/11] xen: set cpu capabilities from xen_start_kernel() Juergen Gross
2017-04-18 6:31 ` [PATCH v3 02/11] x86/xen: don't indicate DCA support in pv domains Juergen Gross
2017-04-18 6:31 ` [PATCH v3 03/11] x86/xen: use capabilities instead of fake cpuid values for aperf Juergen Gross
2017-04-18 6:31 ` [PATCH v3 04/11] x86/xen: use capabilities instead of fake cpuid values for mtrr Juergen Gross
2017-04-18 6:31 ` [PATCH v3 05/11] x86/xen: use capabilities instead of fake cpuid values for acc Juergen Gross
2017-04-18 6:31 ` [PATCH v3 06/11] x86/xen: use capabilities instead of fake cpuid values for acpi Juergen Gross
2017-04-18 6:31 ` [PATCH v3 07/11] x86/xen: use capabilities instead of fake cpuid values for mwait Juergen Gross
2017-04-18 6:31 ` [PATCH v3 08/11] x86/xen: use capabilities instead of fake cpuid values for x2apic Juergen Gross
2017-04-18 6:31 ` [PATCH v3 09/11] x86/xen: use capabilities instead of fake cpuid values for xsave Juergen Gross
2017-04-18 10:02 ` [Xen-devel] " Andrew Cooper
2017-04-18 11:56 ` Juergen Gross
2017-04-21 14:24 ` Boris Ostrovsky
2017-04-21 14:38 ` Juergen Gross
2017-04-21 14:45 ` Andrew Cooper
2017-04-21 14:51 ` Boris Ostrovsky
2017-04-24 6:23 ` Juergen Gross
2017-04-18 6:31 ` [PATCH v3 10/11] vmware: set cpu capabilities during platform initialization Juergen Gross
2017-04-18 6:31 ` [PATCH v3 11/11] x86/cpu: remove hypervisor specific set_cpu_features Juergen Gross
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