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| Started by | Paolo Bonzini <pbonzini@redhat.com> |
|---|---|
| First post | 2017-01-10 18:40 +0100 |
| Last post | 2017-01-16 20:50 +0100 |
| Articles | 3 — 3 participants |
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Re: [PATCH v1 0/2] vpopcntdq support Paolo Bonzini <pbonzini@redhat.com> - 2017-01-10 18:40 +0100
Re: [PATCH v1 0/2] vpopcntdq support "Luc, Piotr" <Piotr.Luc@intel.com> - 2017-01-11 14:10 +0100
Re: [PATCH v1 0/2] vpopcntdq support Thomas Gleixner <tglx@linutronix.de> - 2017-01-16 20:50 +0100
| From | Paolo Bonzini <pbonzini@redhat.com> |
|---|---|
| Date | 2017-01-10 18:40 +0100 |
| Subject | Re: [PATCH v1 0/2] vpopcntdq support |
| Message-ID | <sY8yR-4e0-37@gated-at.bofh.it> |
On 10/01/2017 18:34, Piotr Luc wrote: > Hi, > > This patchset adds the support for new CPUID feature bit that announces the > vector population count instructions for dwords and qwords. > > The path 1/2 adds new feature flags and handles clearing the feature bit in > case xsave is not enabled. > > The patch 2/2 enables passing the feature bit to a kvm/quemu guest. > > The patchset is based on v4.10-rc3. Thanks. I can use a topic branch for patch 1 to apply patch 2. Regards, Paolo > Regards, > Piotr > > Piotr Luc (2): > x86/cpufeature: Add AVX512_VPOPCNTDQ feature > kvm: x86: Expose Intel VPOPCNTDQ feature to guest > > arch/x86/include/asm/cpufeatures.h | 2 +- > arch/x86/kernel/fpu/xstate.c | 1 + > arch/x86/kvm/cpuid.c | 2 +- > tools/arch/x86/include/asm/cpufeatures.h | 1 + > 4 files changed, 4 insertions(+), 2 deletions(-) >
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| From | "Luc, Piotr" <Piotr.Luc@intel.com> |
|---|---|
| Date | 2017-01-11 14:10 +0100 |
| Message-ID | <sYqP7-7ld-5@gated-at.bofh.it> |
| In reply to | #1555751 |
On Tue, 2017-01-10 at 18:39 +0100, Paolo Bonzini wrote: > > The path 1/2 adds new feature flags and handles clearing the > > feature bit in > > case xsave is not enabled. > > > > The patch 2/2 enables passing the feature bit to a kvm/quemu guest. > > > > The patchset is based on v4.10-rc3. > > Thanks. I can use a topic branch for patch 1 to apply patch 2. OK, let's wait for path 1 to be picked up. Regards, Piotr > > Regards, > > Paolo
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| From | Thomas Gleixner <tglx@linutronix.de> |
|---|---|
| Date | 2017-01-16 20:50 +0100 |
| Message-ID | <t0lrX-58K-23@gated-at.bofh.it> |
| In reply to | #1555751 |
Paolo, On Tue, 10 Jan 2017, Paolo Bonzini wrote: > On 10/01/2017 18:34, Piotr Luc wrote: > > Hi, > > > > This patchset adds the support for new CPUID feature bit that announces the > > vector population count instructions for dwords and qwords. > > > > The path 1/2 adds new feature flags and handles clearing the feature bit in > > case xsave is not enabled. > > > > The patch 2/2 enables passing the feature bit to a kvm/quemu guest. > > > > The patchset is based on v4.10-rc3. > > Thanks. I can use a topic branch for patch 1 to apply patch 2. git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/cpufeature contains that patch now (nothing else for now): 06b35d93af0a: x86/cpufeature: Add AVX512_VPOPCNTDQ feature So you can pull that into your tree as a base for the other one. Thanks, tglx
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