Linux-MIPS Archive on lore.kernel.org
 help / color / Atom feed
From: Paolo Bonzini <pbonzini@redhat.com>
To: Huacai Chen <chenhc@lemote.com>,
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Cc: kvm@vger.kernel.org, linux-mips@vger.kernel.org,
	Fuxin Zhang <zhangfx@lemote.com>,
	Huacai Chen <chenhuacai@gmail.com>,
	Jiaxun Yang <jiaxun.yang@flygoat.com>
Subject: Re: [PATCH V7 00/15] KVM: MIPS: Add Loongson-3 support (Host Side)
Date: Thu, 4 Jun 2020 19:57:31 +0200
Message-ID: <d702015b-ab5a-77ae-de24-e248c38030f7@redhat.com> (raw)
In-Reply-To: <1590220602-3547-1-git-send-email-chenhc@lemote.com>

On 23/05/20 09:56, Huacai Chen wrote:
> We are preparing to add KVM support for Loongson-3. VZ extension is
> fully supported in Loongson-3A R4+, and we will not care about old CPUs
> (at least now). We already have a full functional Linux kernel (based
> on Linux-5.4.x LTS) and QEMU (based on 5.0.0) and their git repositories
> are here:
> 
> QEMU: https://github.com/chenhuacai/qemu
> Kernel: https://github.com/chenhuacai/linux
> 
> Of course these two repositories need to be rework and not suitable for
> upstream (especially the commits need to be splitted). We show them here
> is just to tell others what we have done, and how KVM/Loongson will look
> like.
> 
> Our plan is make the KVM host side be upstream first, and after that,
> we will make the KVM guest side and QEMU emulator be upstream.
> 
> V1 -> V2:
> 1, Remove "mips: define pud_index() regardless of page table folding"
>    because it has been applied.
> 2, Make Loongson-specific code be guarded by CONFIG_CPU_LOONGSON64.
> 
> V2 -> V3:
> 1, Emulate a reduced feature list of CPUCFG.
> 2, Fix all possible checkpatch.pl errors and warnings.
> 
> V3 -> V4:
> 1, Emulate LOONGSON_CFG0/LOONGSON_CFG3 in CPUCFG correctly.
> 2, Update commit messages to explain Loongson-3 Virtual IPI.
> 3, Add Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>.
> 
> V4 -> V5:
> 1, Fix a typo.
> 2, Update MAINTAINERS.
> 
> V5 -> V6:
> 1, Fix a mismatch during rebasing.
> 2, Add Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>.
> 
> V6 -> V7:
> 1, Rebase on latest mips-next (Config6 feature bits definition updated).

Queued, thanks.  Please check the queue branch of kvm.git.

Paolo

> Xing Li(2):
>  KVM: MIPS: Define KVM_ENTRYHI_ASID to cpu_asid_mask(&boot_cpu_data)
>  KVM: MIPS: Fix VPN2_MASK definition for variable cpu_vmbits
> 
> Huacai Chen(13):
>  KVM: MIPS: Increase KVM_MAX_VCPUS and KVM_USER_MEM_SLOTS to 16
>  KVM: MIPS: Add EVENTFD support which is needed by VHOST
>  KVM: MIPS: Use lddir/ldpte instructions to lookup gpa_mm.pgd
>  KVM: MIPS: Introduce and use cpu_guest_has_ldpte
>  KVM: MIPS: Use root tlb to control guest's CCA for Loongson-3
>  KVM: MIPS: Let indexed cacheops cause guest exit on Loongson-3
>  KVM: MIPS: Add more types of virtual interrupts
>  KVM: MIPS: Add Loongson-3 Virtual IPI interrupt support
>  KVM: MIPS: Add CPUCFG emulation for Loongson-3
>  KVM: MIPS: Add CONFIG6 and DIAG registers emulation
>  KVM: MIPS: Add more MMIO load/store instructions emulation
>  KVM: MIPS: Enable KVM support for Loongson-3
>  MAINTAINERS: Update KVM/MIPS maintainers
> 
> Signed-off-by: Huacai Chen <chenhc@lemote.com>
> ---
>  MAINTAINERS                          |   4 +-
>  arch/mips/Kconfig                    |   1 +
>  arch/mips/include/asm/cpu-features.h |   3 +
>  arch/mips/include/asm/kvm_host.h     |  52 +++-
>  arch/mips/include/asm/mipsregs.h     |   7 +
>  arch/mips/include/uapi/asm/inst.h    |  11 +
>  arch/mips/kernel/cpu-probe.c         |   2 +
>  arch/mips/kvm/Kconfig                |   1 +
>  arch/mips/kvm/Makefile               |   5 +-
>  arch/mips/kvm/emulate.c              | 503 ++++++++++++++++++++++++++++++++++-
>  arch/mips/kvm/entry.c                |  19 +-
>  arch/mips/kvm/interrupt.c            |  93 +------
>  arch/mips/kvm/interrupt.h            |  14 +-
>  arch/mips/kvm/loongson_ipi.c         | 214 +++++++++++++++
>  arch/mips/kvm/mips.c                 |  49 +++-
>  arch/mips/kvm/tlb.c                  |  41 +++
>  arch/mips/kvm/trap_emul.c            |   3 +
>  arch/mips/kvm/vz.c                   | 237 ++++++++++++-----
>  18 files changed, 1092 insertions(+), 167 deletions(-)
>  create mode 100644 arch/mips/kvm/loongson_ipi.c
> --
> 2.7.0
> 


      parent reply index

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-23  7:56 Huacai Chen
2020-05-23  7:56 ` [PATCH V7 01/15] KVM: MIPS: Define KVM_ENTRYHI_ASID to cpu_asid_mask(&boot_cpu_data) Huacai Chen
2020-05-23  7:56 ` [PATCH V7 02/15] KVM: MIPS: Fix VPN2_MASK definition for variable cpu_vmbits Huacai Chen
2020-05-23  7:56 ` [PATCH V7 03/15] KVM: MIPS: Increase KVM_MAX_VCPUS and KVM_USER_MEM_SLOTS to 16 Huacai Chen
2020-05-23  7:56 ` [PATCH V7 04/15] KVM: MIPS: Add EVENTFD support which is needed by VHOST Huacai Chen
2020-05-23  7:56 ` [PATCH V7 05/15] KVM: MIPS: Use lddir/ldpte instructions to lookup gpa_mm.pgd Huacai Chen
2020-05-23  7:56 ` [PATCH V7 06/15] KVM: MIPS: Introduce and use cpu_guest_has_ldpte Huacai Chen
2020-05-23  7:56 ` [PATCH V7 07/15] KVM: MIPS: Use root tlb to control guest's CCA for Loongson-3 Huacai Chen
2020-05-23  7:56 ` [PATCH V7 08/15] KVM: MIPS: Let indexed cacheops cause guest exit on Loongson-3 Huacai Chen
2020-05-23  7:56 ` [PATCH V7 09/15] KVM: MIPS: Add more types of virtual interrupts Huacai Chen
2020-05-23  7:56 ` [PATCH V7 10/15] KVM: MIPS: Add Loongson-3 Virtual IPI interrupt support Huacai Chen
2020-05-23  7:56 ` [PATCH V7 11/15] KVM: MIPS: Add CPUCFG emulation for Loongson-3 Huacai Chen
2020-05-23  7:56 ` [PATCH V7 12/15] KVM: MIPS: Add CONFIG6 and DIAG registers emulation Huacai Chen
2020-05-23 13:27   ` WANG Xuerui
     [not found]     ` <CAHiYmc6YDw7=mqXfMdgSfeR-HVd2Ec+sQVquM=Z6jLke2s-VEw@mail.gmail.com>
2020-05-24  2:45       ` Huacai Chen
2020-05-23  7:56 ` [PATCH V7 13/15] KVM: MIPS: Add more MMIO load/store instructions emulation Huacai Chen
2020-05-23  7:56 ` [PATCH V7 14/15] KVM: MIPS: Enable KVM support for Loongson-3 Huacai Chen
2020-05-23  7:56 ` [PATCH V7 15/15] MAINTAINERS: Update KVM/MIPS maintainers Huacai Chen
2020-05-23  9:01 ` [PATCH V7 00/15] KVM: MIPS: Add Loongson-3 support (Host Side) Aleksandar Markovic
2020-06-04 17:57 ` Paolo Bonzini [this message]

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=d702015b-ab5a-77ae-de24-e248c38030f7@redhat.com \
    --to=pbonzini@redhat.com \
    --cc=aleksandar.qemu.devel@gmail.com \
    --cc=chenhc@lemote.com \
    --cc=chenhuacai@gmail.com \
    --cc=jiaxun.yang@flygoat.com \
    --cc=kvm@vger.kernel.org \
    --cc=linux-mips@vger.kernel.org \
    --cc=tsbogend@alpha.franken.de \
    --cc=zhangfx@lemote.com \
    /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

Linux-MIPS Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-mips/0 linux-mips/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-mips linux-mips/ https://lore.kernel.org/linux-mips \
		linux-mips@vger.kernel.org
	public-inbox-index linux-mips

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-mips


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git