LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: "Raslan, KarimAllah" <karahmed@amazon.de>
To: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
	"rkrcmar@redhat.com" <rkrcmar@redhat.com>,
	"pbonzini@redhat.com" <pbonzini@redhat.com>,
	"david@redhat.com" <david@redhat.com>
Subject: Re: [PATCH v2 00/12] KVM/X86: Introduce a new guest mapping interface
Date: Mon, 16 Apr 2018 12:09:53 +0000	[thread overview]
Message-ID: <1523880592.22952.9.camel@amazon.de> (raw)
In-Reply-To: <b390f953-6fe3-1119-15eb-e3b31e609305@redhat.com>

On Mon, 2018-04-16 at 13:10 +0200, Paolo Bonzini wrote:
> On 15/04/2018 23:53, KarimAllah Ahmed wrote:
> > 
> > Guest memory can either be directly managed by the kernel (i.e. have a "struct
> > page") or they can simply live outside kernel control (i.e. do not have a
> > "struct page"). KVM mostly support these two modes, except in a few places
> > where the code seems to assume that guest memory must have a "struct page".
> > 
> > This patchset introduces a new mapping interface to map guest memory into host
> > kernel memory which also supports PFN-based memory (i.e. memory without 'struct
> > page'). It also converts all offending code to this interface or simply
> > read/write directly from guest memory.
> > 
> > As far as I can see all offending code is now fixed except the APIC-access page
> > which I will handle in a seperate patch.
> 
> I assume the caching will also be a separate patch.

Yup, do you want me to include it in this one? I already have it, I
just thought that I get those bits out first.

> 
> It looks good except that I'd squash patches 4 and 9 together.

Yup, makes sense. I should have squashed them when I removed the 
lifecycle change!

Thanks for the review :)

> But I'd like a second set of eyes to look at it.
> 
> Thanks,
> 
> Paolo
> 
Amazon Development Center Germany GmbH
Berlin - Dresden - Aachen
main office: Krausenstr. 38, 10117 Berlin
Geschaeftsfuehrer: Dr. Ralf Herbrich, Christian Schlaeger
Ust-ID: DE289237879
Eingetragen am Amtsgericht Charlottenburg HRB 149173 B

  reply	other threads:[~2018-04-16 12:10 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-15 21:53 KarimAllah Ahmed
2018-04-15 21:53 ` [PATCH v2 01/12] X86/nVMX: handle_vmon: Read 4 bytes from guest memory KarimAllah Ahmed
2018-04-15 21:53 ` [PATCH v2 02/12] X86/nVMX: handle_vmptrld: Copy the VMCS12 directly " KarimAllah Ahmed
2018-04-15 21:53 ` [PATCH v2 03/12] X86/nVMX: Update the PML table without mapping and unmapping the page KarimAllah Ahmed
2018-04-16 11:10   ` Paolo Bonzini
2018-04-15 21:53 ` [PATCH v2 04/12] X86/KVM: Handle PFNs outside of kernel reach when touching GPTEs KarimAllah Ahmed
2018-04-15 21:53 ` [PATCH v2 05/12] KVM: Introduce a new guest mapping API KarimAllah Ahmed
2018-04-15 21:53 ` [PATCH v2 06/12] KVM/nVMX: Use kvm_vcpu_map when mapping the L1 MSR bitmap KarimAllah Ahmed
2018-04-15 21:53 ` [PATCH v2 07/12] KVM/nVMX: Use kvm_vcpu_map when mapping the virtual APIC page KarimAllah Ahmed
2018-04-15 21:53 ` [PATCH v2 08/12] KVM/nVMX: Use kvm_vcpu_map when mapping the posted interrupt descriptor table KarimAllah Ahmed
2018-04-15 21:53 ` [PATCH v2 09/12] KVM/X86: Use kvm_vcpu_map in emulator_cmpxchg_emulated KarimAllah Ahmed
2018-04-15 21:53 ` [PATCH v2 10/12] KVM/X86: hyperv: Use kvm_vcpu_map in synic_clear_sint_msg_pending KarimAllah Ahmed
2018-04-15 21:53 ` [PATCH v2 11/12] KVM/X86: hyperv: Use kvm_vcpu_map in synic_deliver_msg KarimAllah Ahmed
2018-04-15 21:53 ` [PATCH v2 12/12] KVM/nSVM: Use the new mapping API for mapping guest memory KarimAllah Ahmed
2018-04-16 11:10 ` [PATCH v2 00/12] KVM/X86: Introduce a new guest mapping interface Paolo Bonzini
2018-04-16 12:09   ` Raslan, KarimAllah [this message]
2018-04-16 12:27     ` Paolo Bonzini
2018-05-15 16:06       ` Konrad Rzeszutek Wilk
2018-05-22 15:43         ` Raslan, KarimAllah
2018-07-10 12:06   ` Raslan, KarimAllah
2018-07-11 10:26     ` Paolo Bonzini

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1523880592.22952.9.camel@amazon.de \
    --to=karahmed@amazon.de \
    --cc=david@redhat.com \
    --cc=kvm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=pbonzini@redhat.com \
    --cc=rkrcmar@redhat.com \
    --subject='Re: [PATCH v2 00/12] KVM/X86: Introduce a new guest mapping interface' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).