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From: Paolo Bonzini <pbonzini@redhat.com>
To: alvise rigo <a.rigo@virtualopensystems.com>
Cc: mttcg@greensocs.com,
	"Claudio Fontana" <claudio.fontana@huawei.com>,
	"QEMU Developers" <qemu-devel@nongnu.org>,
	"Jani Kokkonen" <jani.kokkonen@huawei.com>,
	"VirtualOpenSystems Technical Team" <tech@virtualopensystems.com>,
	"Alex Bennée" <alex.bennee@linaro.org>
Subject: Re: [Qemu-devel] [RFC v4 1/9] exec.c: Add new exclusive bitmap to ram_list
Date: Tue, 11 Aug 2015 18:32:03 +0200	[thread overview]
Message-ID: <55CA2383.60805@redhat.com> (raw)
In-Reply-To: <CAH47eN2xF-=kJ27eTQuuwgvdSP2=dC12eUS1VxK70VpKopeNeg@mail.gmail.com>



On 11/08/2015 18:11, alvise rigo wrote:
>> > Why flush the entire cache (I understand you mean TLB)?
> Sorry, I meant the TLB.
> If for each removal of an exclusive entry we set also the bit to 1, we
> force the following LL to make a tlb_flush() on every vCPU.

What if you only flush one entry with tlb_flush_entry (on every vCPU)?

Paolo

  reply	other threads:[~2015-08-11 16:32 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-07 17:03 [Qemu-devel] [RFC v4 0/9] Slow-path for atomic instruction translation Alvise Rigo
2015-08-07 17:03 ` [Qemu-devel] [RFC v4 1/9] exec.c: Add new exclusive bitmap to ram_list Alvise Rigo
2015-08-11 13:52   ` Paolo Bonzini
2015-08-11 14:24     ` Peter Maydell
2015-08-11 14:34       ` alvise rigo
2015-08-11 15:54     ` alvise rigo
2015-08-11 15:55       ` Paolo Bonzini
2015-08-11 16:11         ` alvise rigo
2015-08-11 16:32           ` Paolo Bonzini [this message]
2015-08-12  7:31             ` alvise rigo
2015-08-12 12:36               ` Paolo Bonzini
2015-08-12 13:02                 ` Peter Maydell
2015-08-12 14:04                 ` alvise rigo
2015-08-12 14:10                   ` Paolo Bonzini
2015-08-12 14:32                     ` alvise rigo
2015-09-10 13:04                 ` alvise rigo
2015-09-10 16:19                   ` Alex Bennée
2015-09-10 17:36                     ` alvise rigo
2015-09-10 16:25                   ` Paolo Bonzini
2015-08-07 17:03 ` [Qemu-devel] [RFC v4 2/9] softmmu: Add new TLB_EXCL flag Alvise Rigo
2015-08-07 17:03 ` [Qemu-devel] [RFC v4 3/9] softmmu: Add helpers for a new slowpath Alvise Rigo
2015-08-11 13:32   ` alvise rigo
2015-08-11 13:52     ` Paolo Bonzini
2015-08-11 15:55       ` alvise rigo
2015-08-12 12:43   ` Paolo Bonzini
2015-08-12 13:09     ` alvise rigo
2015-08-12 13:14       ` Paolo Bonzini
2015-08-07 17:03 ` [Qemu-devel] [RFC v4 4/9] tcg-op: create new TCG qemu_{ld, st} excl variants Alvise Rigo
2015-08-07 17:03 ` [Qemu-devel] [RFC v4 5/9] configure: Enable/disable new qemu_{ld, st} excl insns Alvise Rigo
2015-08-08 12:44   ` Aurelien Jarno
2015-08-08 13:57     ` Peter Maydell
2015-08-09  8:11     ` Alex Bennée
2015-08-09  8:40       ` Aurelien Jarno
2015-08-09  9:51         ` Alex Bennée
2015-08-09 10:13           ` Aurelien Jarno
2015-08-09 16:27             ` Alex Bennée
2015-08-07 17:03 ` [Qemu-devel] [RFC v4 6/9] tcg-i386: Implement excl variants of qemu_{ld, st} Alvise Rigo
2015-08-08 13:00   ` Aurelien Jarno
2015-08-10  7:50     ` alvise rigo
2015-08-07 17:03 ` [Qemu-devel] [RFC v4 7/9] tcg-arm: " Alvise Rigo
2015-08-07 17:03 ` [Qemu-devel] [RFC v4 8/9] tcg-aarch64: " Alvise Rigo
2015-08-07 17:03 ` [Qemu-devel] [RFC v4 9/9] target-arm: translate: Use ld/st excl for atomic insns Alvise Rigo

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