From: Sean Christopherson <sean.j.christopherson@intel.com>
To: Nadav Amit <namit@vmware.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Andy Lutomirski <luto@kernel.org>,
linux-kernel@vger.kernel.org, Ingo Molnar <mingo@redhat.com>,
Borislav Petkov <bp@alien8.de>,
x86@kernel.org, Thomas Gleixner <tglx@linutronix.de>,
Dave Hansen <dave.hansen@linux.intel.com>
Subject: Re: [PATCH 8/9] x86/tlb: Privatize cpu_tlbstate
Date: Fri, 14 Jun 2019 08:58:38 -0700 [thread overview]
Message-ID: <20190614155838.GD12191@linux.intel.com> (raw)
In-Reply-To: <20190613064813.8102-9-namit@vmware.com>
On Wed, Jun 12, 2019 at 11:48:12PM -0700, Nadav Amit wrote:
> diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h
> index 79272938cf79..a1fea36d5292 100644
> --- a/arch/x86/include/asm/tlbflush.h
> +++ b/arch/x86/include/asm/tlbflush.h
...
> @@ -439,6 +442,7 @@ static inline void __native_flush_tlb_one_user(unsigned long addr)
> {
> u32 loaded_mm_asid = this_cpu_read(cpu_tlbstate.loaded_mm_asid);
>
> + //invpcid_flush_one(kern_pcid(loaded_mm_asid), addr);
Leftover debug/testing code.
> asm volatile("invlpg (%0)" ::"r" (addr) : "memory");
>
> if (!static_cpu_has(X86_FEATURE_PTI))
next prev parent reply other threads:[~2019-06-14 15:58 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-13 6:48 [PATCH 0/9] x86: Concurrent TLB flushes and other improvements Nadav Amit
2019-06-13 6:48 ` [PATCH 1/9] smp: Remove smp_call_function() and on_each_cpu() return values Nadav Amit
2019-06-23 12:32 ` [tip:smp/hotplug] " tip-bot for Nadav Amit
2019-06-13 6:48 ` [PATCH 2/9] smp: Run functions concurrently in smp_call_function_many() Nadav Amit
2019-06-13 6:48 ` [PATCH 3/9] x86/mm/tlb: Refactor common code into flush_tlb_on_cpus() Nadav Amit
2019-06-25 21:07 ` Dave Hansen
2019-06-26 1:57 ` Nadav Amit
2019-06-13 6:48 ` [PATCH 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently Nadav Amit
2019-06-13 6:48 ` [Xen-devel] " Nadav Amit
2019-06-13 6:48 ` Nadav Amit via Virtualization
2019-06-25 21:29 ` Dave Hansen
2019-06-25 21:29 ` [Xen-devel] " Dave Hansen
2019-06-25 21:29 ` Dave Hansen
2019-06-26 2:35 ` Nadav Amit
2019-06-26 2:35 ` [Xen-devel] " Nadav Amit
2019-06-26 3:00 ` Dave Hansen
2019-06-26 3:00 ` Dave Hansen
2019-06-26 3:00 ` [Xen-devel] " Dave Hansen
2019-06-26 3:32 ` Nadav Amit
2019-06-26 3:32 ` [Xen-devel] " Nadav Amit
2019-06-26 3:32 ` Nadav Amit via Virtualization
2019-06-26 2:35 ` Nadav Amit via Virtualization
2019-06-26 3:36 ` Andy Lutomirski
2019-06-26 3:36 ` [Xen-devel] " Andy Lutomirski
2019-06-26 3:36 ` Andy Lutomirski
2019-06-26 3:48 ` Nadav Amit
2019-06-26 3:48 ` [Xen-devel] " Nadav Amit
2019-06-26 3:48 ` Nadav Amit via Virtualization
2019-06-26 3:51 ` Andy Lutomirski
2019-06-26 3:51 ` Andy Lutomirski
2019-06-26 3:51 ` [Xen-devel] " Andy Lutomirski
2019-06-13 6:48 ` [PATCH 5/9] x86/mm/tlb: Optimize local TLB flushes Nadav Amit
2019-06-25 21:36 ` Dave Hansen
2019-06-26 16:33 ` Andy Lutomirski
2019-06-26 16:39 ` Nadav Amit
2019-06-26 16:50 ` Andy Lutomirski
2019-06-13 6:48 ` [PATCH 6/9] KVM: x86: Provide paravirtualized flush_tlb_multi() Nadav Amit
2019-06-25 21:40 ` Dave Hansen
2019-06-26 2:39 ` Nadav Amit
2019-06-26 3:35 ` Andy Lutomirski
2019-06-26 3:41 ` Nadav Amit
2019-06-26 3:56 ` Andy Lutomirski
2019-06-26 6:30 ` Nadav Amit
2019-06-26 16:37 ` Andy Lutomirski
2019-06-26 17:41 ` Vitaly Kuznetsov
2019-06-26 18:21 ` Andy Lutomirski
2019-06-13 6:48 ` [PATCH 7/9] smp: Do not mark call_function_data as shared Nadav Amit
2019-06-23 12:31 ` [tip:smp/hotplug] " tip-bot for Nadav Amit
2019-06-13 6:48 ` [PATCH 8/9] x86/tlb: Privatize cpu_tlbstate Nadav Amit
2019-06-14 15:58 ` Sean Christopherson [this message]
2019-06-17 17:10 ` Nadav Amit
2019-06-25 21:52 ` Dave Hansen
2019-06-26 1:22 ` Nadav Amit
2019-06-26 3:57 ` Andy Lutomirski
2019-06-13 6:48 ` [PATCH 9/9] x86/apic: Use non-atomic operations when possible Nadav Amit
2019-06-23 12:16 ` [tip:x86/apic] " tip-bot for Nadav Amit
2019-06-25 21:58 ` [PATCH 9/9] " Dave Hansen
2019-06-25 22:03 ` Thomas Gleixner
2019-06-23 12:37 ` [PATCH 0/9] x86: Concurrent TLB flushes and other improvements Thomas Gleixner
2019-06-25 22:02 ` Dave Hansen
2019-06-26 1:34 ` Nadav Amit
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