From: Nadav Amit
This is a respin of a rebased version of an old series, which I did not
follow, as I was preoccupied with personal issues (sorry).
The series improve TLB shootdown by flushing the local TLB concurrently
with remote TLBs, overlapping the IPI delivery time with the local
flush
From: Nadav Amit
To improve TLB shootdown performance, flush the remote and local TLBs
concurrently. Introduce flush_tlb_multi() that does so. Introduce
paravirtual versions of flush_tlb_multi() for KVM, Xen and hyper-v (Xen
and hyper-v are only compile-tested).
While the updated smp
> On Feb 16, 2021, at 4:10 AM, Peter Zijlstra wrote:
>
> On Tue, Feb 09, 2021 at 02:16:49PM -0800, Nadav Amit wrote:
>> @@ -816,8 +821,8 @@ STATIC_NOPV void native_flush_tlb_others(const struct
>> cpumask *cpumask,
>> * doing a speculative memory access.
&
From: Nadav Amit
The series improves TLB shootdown by flushing the local TLB concurrently
with remote TLBs, overlapping the IPI delivery time with the local
flush. Performance numbers can be found in the previous version [1].
v5 was rebased on 5.11 (long time after v4), and had some bugs and
From: Nadav Amit
To improve TLB shootdown performance, flush the remote and local TLBs
concurrently. Introduce flush_tlb_multi() that does so. Introduce
paravirtual versions of flush_tlb_multi() for KVM, Xen and hyper-v (Xen
and hyper-v are only compile-tested).
While the updated smp
On Jun 13, 2022, at 11:48 AM, Srivatsa S. Bhat wrote:
> ⚠ External Email
>
> On 6/8/22 4:27 PM, Peter Zijlstra wrote:
>> vmlinux.o: warning: objtool: acpi_idle_enter_s2idle+0xde: call to wbinvd()
>> leaves .noinstr.text section
>> vmlinux.o: warning: objtool: default_idle+0x4: call to arch_safe
From: David Hildenbrand
Sent: November 14, 2018 at 9:16:58 PM GMT
> Subject: [PATCH RFC 0/6] mm/kdump: allow to exclude pages that are logically
> offline
>
>
> Right now, pages inflated as part of a balloon driver will be dumped
> by dump tools like makedumpfile. While XEN is able to check in t
From: David Hildenbrand
Sent: November 14, 2018 at 11:05:38 PM GMT
> Subject: Re: [PATCH RFC 0/6] mm/kdump: allow to exclude pages that are
> logically offline
>
>
> On 14.11.18 23:57, Nadav Amit wrote:
>> From: David Hildenbrand
>> Sent: November 14, 2018 at 9:16:58
Thanks for this patch!
> On Nov 19, 2018, at 2:16 AM, David Hildenbrand wrote:
>
> Mark inflated and never onlined pages PG_offline, to tell the world that
> the content is stale and should not be dumped.
>
> Cc: Xavier Deguillard
> Cc: Nadav Amit
> Cc: Arnd Be
.org
Cc: k...@vger.kernel.org
Cc: xen-devel@lists.xenproject.org
Reviewed-by: Michael Kelley # Hyper-v parts
Reviewed-by: Juergen Gross # Xen and paravirt parts
Reviewed-by: Dave Hansen
Signed-off-by: Nadav Amit
---
arch/x86/hyperv/mmu.c | 10 +++---
arch/x86/include/asm/paravirt.h
ualizat...@lists.linux-foundation.org
Cc: x...@kernel.org
Cc: xen-devel@lists.xenproject.org
Nadav Amit (9):
smp: Run functions concurrently in smp_call_function_many()
x86/mm/tlb: Unify flush_tlb_func_local() and flush_tlb_func_remote()
x86/mm/tlb: Open-code on_each_cpu_cond_mask() for tlb_is_not_lazy
Ostrovsky
Cc: Juergen Gross
Cc: Stefano Stabellini
Cc: xen-devel@lists.xenproject.org
Signed-off-by: Nadav Amit
---
arch/x86/include/asm/paravirt.h | 5 ++--
arch/x86/include/asm/paravirt_types.h | 3 ++-
arch/x86/include/asm/tlbflush.h | 24 +
arch/x86/kernel
> On Aug 26, 2019, at 12:51 AM, Juergen Gross wrote:
>
> On 24.08.19 00:52, Nadav Amit wrote:
>> __flush_tlb_one_user() currently flushes a single entry, and flushes it
>> both in the kernel and user page-tables, when PTI is enabled.
>> Change __flush_tlb_one_user()
> On Mar 12, 2019, at 10:23 AM, David Hildenbrand wrote:
>
> On 12.03.19 18:14, Matthew Wilcox wrote:
>> On Tue, Mar 12, 2019 at 05:05:39PM +, Julien Grall wrote:
>>> On 3/12/19 3:59 PM, Julien Grall wrote:
It looks like all the arm test for linus [1] and next [2] tree
are now faili
org
Signed-off-by: Nadav Amit
---
arch/x86/hyperv/mmu.c | 2 +
arch/x86/include/asm/paravirt.h | 8 +++
arch/x86/include/asm/paravirt_types.h | 6 ++
arch/x86/include/asm/tlbflush.h | 6 ++
arch/x86/kernel/kvm.c | 1 +
arch/x86/kernel/paravirt.c
> On May 25, 2019, at 1:22 AM, Nadav Amit wrote:
>
> To improve TLB shootdown performance, flush the remote and local TLBs
> concurrently. Introduce flush_tlb_multi() that does so. The current
> flush_tlb_others() interface is kept, since paravirtual interfaces need
> to be ad
> On May 27, 2019, at 2:47 AM, Peter Zijlstra wrote:
>
> On Sat, May 25, 2019 at 10:54:50AM +0200, Juergen Gross wrote:
>> On 25/05/2019 10:22, Nadav Amit wrote:
>
>>> diff --git a/arch/x86/include/asm/paravirt_types.h
>>> b/arch/x86/include/asm/par
org
Signed-off-by: Nadav Amit
---
arch/x86/hyperv/mmu.c | 2 +
arch/x86/include/asm/paravirt.h | 8 +++
arch/x86/include/asm/paravirt_types.h | 6 ++
arch/x86/include/asm/tlbflush.h | 6 ++
arch/x86/kernel/kvm.c | 1 +
arch/x86/kernel/paravirt.c
> On May 31, 2019, at 4:48 AM, Juergen Gross wrote:
>
> On 31/05/2019 08:36, Nadav Amit wrote:
>>
>> --- a/arch/x86/include/asm/paravirt_types.h
>> +++ b/arch/x86/include/asm/paravirt_types.h
>> @@ -211,6 +211,12 @@ struct pv_mmu_ops {
>> voi
org
Signed-off-by: Nadav Amit
---
arch/x86/hyperv/mmu.c | 2 +
arch/x86/include/asm/paravirt.h | 8 +++
arch/x86/include/asm/paravirt_types.h | 6 +++
arch/x86/include/asm/tlbflush.h | 6 +++
arch/x86/kernel/kvm.c | 1 +
arch/x86/kernel/
> On Jun 25, 2019, at 2:29 PM, Dave Hansen wrote:
>
> On 6/12/19 11:48 PM, Nadav Amit wrote:
>> To improve TLB shootdown performance, flush the remote and local TLBs
>> concurrently. Introduce flush_tlb_multi() that does so. The current
>> flush_tlb_others() interface
> On Jun 25, 2019, at 8:00 PM, Dave Hansen wrote:
>
> On 6/25/19 7:35 PM, Nadav Amit wrote:
>>>> const struct flush_tlb_info *f = info;
>>>> + enum tlb_flush_reason reason;
>>>> +
>>>> + reason = (f->mm == NULL) ? TLB_LOCAL_SHOOTDO
> On Jun 25, 2019, at 8:36 PM, Andy Lutomirski wrote:
>
> On Wed, Jun 12, 2019 at 11:49 PM Nadav Amit wrote:
>> To improve TLB shootdown performance, flush the remote and local TLBs
>> concurrently. Introduce flush_tlb_multi() that does so. The current
>> flush_tlb
el.org
Cc: linux-ker...@vger.kernel.org
Cc: virtualizat...@lists.linux-foundation.org
Cc: x...@kernel.org
Cc: xen-devel@lists.xenproject.org
Nadav Amit (9):
smp: Run functions concurrently in smp_call_function_many()
x86/mm/tlb: Remove reason as argument for flush_tlb_func_local()
x86/m
ists.linux-foundation.org
Cc: k...@vger.kernel.org
Cc: xen-devel@lists.xenproject.org
Signed-off-by: Nadav Amit
---
arch/x86/hyperv/mmu.c | 13 +++---
arch/x86/include/asm/paravirt.h | 6 +--
arch/x86/include/asm/paravirt_types.h | 4 +-
arch/x86/include/asm/tlbflush.h | 9
> On Jul 3, 2019, at 7:04 AM, Juergen Gross wrote:
>
> On 03.07.19 01:51, Nadav Amit wrote:
>> To improve TLB shootdown performance, flush the remote and local TLBs
>> concurrently. Introduce flush_tlb_multi() that does so. Introduce
>> paravirtual versions of flush_t
> On Jul 3, 2019, at 10:43 AM, Andrew Cooper wrote:
>
> On 03/07/2019 18:02, Nadav Amit wrote:
>>> On Jul 3, 2019, at 7:04 AM, Juergen Gross wrote:
>>>
>>> On 03.07.19 01:51, Nadav Amit wrote:
>>>> To improve TLB shootdown performance, f
ists.linux-foundation.org
Cc: k...@vger.kernel.org
Cc: xen-devel@lists.xenproject.org
Signed-off-by: Nadav Amit
---
arch/x86/hyperv/mmu.c | 10 +++---
arch/x86/include/asm/paravirt.h | 6 ++--
arch/x86/include/asm/paravirt_types.h | 4 +--
arch/x86/include/asm/tlbflush.h
izat...@lists.linux-foundation.org
Cc: x...@kernel.org
Cc: xen-devel@lists.xenproject.org
Nadav Amit (9):
smp: Run functions concurrently in smp_call_function_many()
x86/mm/tlb: Remove reason as argument for flush_tlb_func_local()
x86/mm/tlb: Open-code on_each_cpu_cond_mask() for tlb_is_not_lazy()
x86/m
> On Jul 22, 2019, at 12:14 PM, Peter Zijlstra wrote:
>
> On Thu, Jul 18, 2019 at 05:58:32PM -0700, Nadav Amit wrote:
>> @@ -709,8 +716,9 @@ void native_flush_tlb_others(const struct cpumask
>> *cpumask,
>> * doing a speculative memory access.
>>
On Aug 31, 2022, at 3:19 AM, Mel Gorman wrote:
> On Wed, Aug 31, 2022 at 04:42:30AM -0400, Kent Overstreet wrote:
>> On Wed, Aug 31, 2022 at 09:38:27AM +0200, Peter Zijlstra wrote:
>>> On Tue, Aug 30, 2022 at 02:48:49PM -0700, Suren Baghdasaryan wrote:
===
Code t
On Oct 3, 2022, at 8:03 AM, Vitaly Kuznetsov wrote:
> Not my but rather PCI maintainer's call but IMHO dropping 'const' is
> better, introducing a new global var is our 'last resort' and should be
> avoided whenever possible. Alternatively, you can add a
> raw_pci_ext_ops_preferred() function che
On Oct 3, 2022, at 2:06 PM, H. Peter Anvin wrote:
> ⚠ External Email
>
> On October 3, 2022 10:34:15 AM PDT, Nadav Amit wrote:
>> On Oct 3, 2022, at 8:03 AM, Vitaly Kuznetsov wrote:
>>
>>> Not my but rather PCI maintainer's call but IMHO dropping '
On Oct 3, 2022, at 4:51 PM, H. Peter Anvin wrote:
> ⚠ External Email
>
> On October 3, 2022 2:28:40 PM PDT, Nadav Amit wrote:
>> On Oct 3, 2022, at 2:06 PM, H. Peter Anvin wrote:
>>
>>> ⚠ External Email
>>>
>>> On October 3, 2022 10:34:15 AM P
On Oct 4, 2022, at 1:22 AM, Alexander Graf wrote:
> ⚠ External Email
>
> Hey Nadav,
>
> On 03.10.22 19:34, Nadav Amit wrote:
>> On Oct 3, 2022, at 8:03 AM, Vitaly Kuznetsov wrote:
>>
>>> Not my but rather PCI maintainer's call but IMHO dropping '
On Oct 4, 2022, at 11:48 AM, Nadav Amit wrote:
> On Oct 4, 2022, at 1:22 AM, Alexander Graf wrote:
>
>> ⚠ External Email
>>
>> Hey Nadav,
>>
>> On 03.10.22 19:34, Nadav Amit wrote:
>>> On Oct 3, 2022, at 8:03 AM, Vitaly Kuznetsov wrote:
>>
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