target/loongarch/cpu-csr.h | 42 ++ target/loongarch/cpu-mmu.h | 37 +- target/loongarch/cpu.c | 132 ++++ target/loongarch/cpu.h | 125 +++- target/loongarch/cpu_helper.c | 119 ++-- target/loongarch/csr.c | 122 ++++ target/loongarch/csr.h | 3 + target/loongarch/disas.c | 10 + target/loongarch/insns.decode | 17 + target/loongarch/internals.h | 8 +- target/loongarch/kvm/kvm.c | 1 + target/loongarch/machine.c | 249 ++++--- target/loongarch/tcg/constant_timer.c | 62 +- target/loongarch/tcg/csr_helper.c | 127 +++- target/loongarch/tcg/helper.h | 30 +- .../tcg/insn_trans/trans_privileged.c.inc | 353 +++++++++- target/loongarch/tcg/op_helper.c | 83 ++- target/loongarch/tcg/tcg_cpu.c | 182 +++-- target/loongarch/tcg/tcg_loongarch.h | 6 +- target/loongarch/tcg/tlb_helper.c | 629 +++++++++++++----- target/loongarch/tcg/translate.c | 6 +- target/loongarch/translate.h | 2 + 22 files changed, 1909 insertions(+), 436 deletions(-)
This patch implements Loongson VirtualiZation (LVZ) extension support for LoongArch's TCG target. With this patch, it is now possible to start a nested KVM-accelerated virtual machine on a TCG-emulated virtual machine. Cc: Bibo Mao <maobibo@loongson.cn> Cc: xianglai li <lixianglai@loongson.cn> Signed-off-by: SignKirigami <prcups@krgm.moe> Signed-off-by: Hengyu Yu <yuhengyu25@mails.ucas.ac.cn> SignKirigami (4): target/loongarch: add LVZ CPU state and CSR metadata target/loongarch: add LVZ guest runtime support target/loongarch: translate LVZ CSR and trap instructions target/loongarch: virtualize guest TLB and address translation target/loongarch/cpu-csr.h | 42 ++ target/loongarch/cpu-mmu.h | 37 +- target/loongarch/cpu.c | 132 ++++ target/loongarch/cpu.h | 125 +++- target/loongarch/cpu_helper.c | 119 ++-- target/loongarch/csr.c | 122 ++++ target/loongarch/csr.h | 3 + target/loongarch/disas.c | 10 + target/loongarch/insns.decode | 17 + target/loongarch/internals.h | 8 +- target/loongarch/kvm/kvm.c | 1 + target/loongarch/machine.c | 249 ++++--- target/loongarch/tcg/constant_timer.c | 62 +- target/loongarch/tcg/csr_helper.c | 127 +++- target/loongarch/tcg/helper.h | 30 +- .../tcg/insn_trans/trans_privileged.c.inc | 353 +++++++++- target/loongarch/tcg/op_helper.c | 83 ++- target/loongarch/tcg/tcg_cpu.c | 182 +++-- target/loongarch/tcg/tcg_loongarch.h | 6 +- target/loongarch/tcg/tlb_helper.c | 629 +++++++++++++----- target/loongarch/tcg/translate.c | 6 +- target/loongarch/translate.h | 2 + 22 files changed, 1909 insertions(+), 436 deletions(-) -- 2.52.0
On 2026/5/19 下午2:30, SignKirigami wrote: > This patch implements Loongson VirtualiZation (LVZ) extension support for LoongArch's TCG target. With this patch, it is now possible to start a nested KVM-accelerated virtual machine on a TCG-emulated virtual machine. Hi SignKirigami, I suggest minimal support with LVZ at beginning, such as no PTW, no machine state save/restore etc. Just CPU virtualization and simple memory virtualization is enough. Regards Bibo Mao > > Cc: Bibo Mao <maobibo@loongson.cn> > Cc: xianglai li <lixianglai@loongson.cn> > Signed-off-by: SignKirigami <prcups@krgm.moe> > Signed-off-by: Hengyu Yu <yuhengyu25@mails.ucas.ac.cn> > > SignKirigami (4): > target/loongarch: add LVZ CPU state and CSR metadata > target/loongarch: add LVZ guest runtime support > target/loongarch: translate LVZ CSR and trap instructions > target/loongarch: virtualize guest TLB and address translation > > target/loongarch/cpu-csr.h | 42 ++ > target/loongarch/cpu-mmu.h | 37 +- > target/loongarch/cpu.c | 132 ++++ > target/loongarch/cpu.h | 125 +++- > target/loongarch/cpu_helper.c | 119 ++-- > target/loongarch/csr.c | 122 ++++ > target/loongarch/csr.h | 3 + > target/loongarch/disas.c | 10 + > target/loongarch/insns.decode | 17 + > target/loongarch/internals.h | 8 +- > target/loongarch/kvm/kvm.c | 1 + > target/loongarch/machine.c | 249 ++++--- > target/loongarch/tcg/constant_timer.c | 62 +- > target/loongarch/tcg/csr_helper.c | 127 +++- > target/loongarch/tcg/helper.h | 30 +- > .../tcg/insn_trans/trans_privileged.c.inc | 353 +++++++++- > target/loongarch/tcg/op_helper.c | 83 ++- > target/loongarch/tcg/tcg_cpu.c | 182 +++-- > target/loongarch/tcg/tcg_loongarch.h | 6 +- > target/loongarch/tcg/tlb_helper.c | 629 +++++++++++++----- > target/loongarch/tcg/translate.c | 6 +- > target/loongarch/translate.h | 2 + > 22 files changed, 1909 insertions(+), 436 deletions(-) >
Please disregard my previous patch series[1][2][3][4][5][6]. This was my first time using git send-email and my provider messed up the threads (the cover letter also accidentally reused a previous Message-ID, causing it to be grouped into the wrong thread[7]). I sincerely apologize for the noise and confusion. .... [1]: https://lore.kernel.org/qemu-devel/734d561d-4a8c-4235-b55d-1387020f8a62@mtasv.net/T/#t [2]: https://lore.kernel.org/qemu-devel/ff838e8c-8f44-446d-915d-cfb2ce869a5c@mtasv.net/T/#u [3]: https://lore.kernel.org/qemu-devel/ac715039-55b0-400d-bd78-32ff7ec889c8@mtasv.net/T/#t [4]: https://lore.kernel.org/qemu-devel/75d2c4d9-aa2e-4660-9a47-1cf0f8a23f7b@mtasv.net/T/#u [5]: https://lore.kernel.org/qemu-devel/28e575ca-c2bc-4ff5-b686-0459f743ec65@mtasv.net/T/#u [6]: https://lore.kernel.org/qemu-devel/f9750959-4b07-45b5-a834-89c4f825184b@mtasv.net/T/#t [7]: https://lore.kernel.org/qemu-devel/cover.1779171125.git.prcups@krgm.moe/T/#t 于 2026年5月19日 GMT+08:00 14:30:39，SignKirigami <prcups@krgm.moe> 写道： >This patch implements Loongson VirtualiZation (LVZ) extension support for LoongArch's TCG target. With this patch, it is now possible to start a nested KVM-accelerated virtual machine on a TCG-emulated virtual machine. > >Cc: Bibo Mao <maobibo@loongson.cn> >Cc: xianglai li <lixianglai@loongson.cn> >Signed-off-by: SignKirigami <prcups@krgm.moe> >Signed-off-by: Hengyu Yu <yuhengyu25@mails.ucas.ac.cn> > >SignKirigami (4): > target/loongarch: add LVZ CPU state and CSR metadata > target/loongarch: add LVZ guest runtime support > target/loongarch: translate LVZ CSR and trap instructions > target/loongarch: virtualize guest TLB and address translation > > target/loongarch/cpu-csr.h | 42 ++ > target/loongarch/cpu-mmu.h | 37 +- > target/loongarch/cpu.c | 132 ++++ > target/loongarch/cpu.h | 125 +++- > target/loongarch/cpu_helper.c | 119 ++-- > target/loongarch/csr.c | 122 ++++ > target/loongarch/csr.h | 3 + > target/loongarch/disas.c | 10 + > target/loongarch/insns.decode | 17 + > target/loongarch/internals.h | 8 +- > target/loongarch/kvm/kvm.c | 1 + > target/loongarch/machine.c | 249 ++++--- > target/loongarch/tcg/constant_timer.c | 62 +- > target/loongarch/tcg/csr_helper.c | 127 +++- > target/loongarch/tcg/helper.h | 30 +- > .../tcg/insn_trans/trans_privileged.c.inc | 353 +++++++++- > target/loongarch/tcg/op_helper.c | 83 ++- > target/loongarch/tcg/tcg_cpu.c | 182 +++-- > target/loongarch/tcg/tcg_loongarch.h | 6 +- > target/loongarch/tcg/tlb_helper.c | 629 +++++++++++++----- > target/loongarch/tcg/translate.c | 6 +- > target/loongarch/translate.h | 2 + > 22 files changed, 1909 insertions(+), 436 deletions(-) > >-- >2.52.0 >
On Tue, May 19, 2026 at 04:09:32PM +0800, SignKirigami wrote: > Please disregard my previous patch series[1][2][3][4][5][6]. > This was my first time using git send-email and my provider > messed up the threads (the cover letter also accidentally > reused a previous Message-ID, causing it to be grouped into > the wrong thread[7]). FWIW, personally I can recommend using the "git-publish" tool for sending patch series as it makes it (mostly) foolproof. Assuming you've got your work on a branch and keep using the same branch across multiple postings of a piece of work, then running 'git-publish' with no arguments will "do the right thing(tm)", includign: * Format a mail for every patch on that branch vs master * Add a cover letter automatically if there are 2+ patches * Use MAINTAINERS to automatically CC (mostly) the right people * Keep track of patch versions, incrementing after each posting * Remember the cover letter text across each posting * Send to qemu-devel by default The only config task for git-publish is to have the global git "sendemail.smtpserver" option set, which you'll have already done for git send-email. There is more guidance on submitting patches at: https://www.qemu.org/docs/master/devel/submitting-a-patch.html#submitting-your-patches > I sincerely apologize for the noise and confusion. No problem. With regards, Daniel -- |: https://berrange.com ~~ https://hachyderm.io/@berrange :| |: https://libvirt.org ~~ https://entangle-photo.org :| |: https://pixelfed.art/berrange ~~ https://fstop138.berrange.com :|
On 2026/5/19 下午4:09, SignKirigami wrote: > Please disregard my previous patch series[1][2][3][4][5][6]. This was my > first time using git send-email and my provider messed up the threads > (the cover letter also accidentally reused a previous Message-ID, > causing it to be grouped into the wrong thread[7]). you can send the patchset to you only in order to test git send-mail command, or git send-mail --dry-run. It is not enough to spit into 4 patches still, I guess it will take several months to merge this huge patch. Just be patient and not be such a hurry :), otherwise there will be lost of problems, code cleanup or bugfix. Regards Bibo Mao > > I sincerely apologize for the noise and confusion. > > .... > > [1]: > https://lore.kernel.org/qemu-devel/734d561d-4a8c-4235-b55d-1387020f8a62@mtasv.net/T/#t > [2]: > https://lore.kernel.org/qemu-devel/ff838e8c-8f44-446d-915d-cfb2ce869a5c@mtasv.net/T/#u > [3]: > https://lore.kernel.org/qemu-devel/ac715039-55b0-400d-bd78-32ff7ec889c8@mtasv.net/T/#t > [4]: > https://lore.kernel.org/qemu-devel/75d2c4d9-aa2e-4660-9a47-1cf0f8a23f7b@mtasv.net/T/#u > [5]: > https://lore.kernel.org/qemu-devel/28e575ca-c2bc-4ff5-b686-0459f743ec65@mtasv.net/T/#u > [6]: > https://lore.kernel.org/qemu-devel/f9750959-4b07-45b5-a834-89c4f825184b@mtasv.net/T/#t > [7]: > https://lore.kernel.org/qemu-devel/cover.1779171125.git.prcups@krgm.moe/T/#t > > > 于 2026年5月19日 GMT+08:00 14:30:39，SignKirigami <prcups@krgm.moe> 写道： > > This patch implements Loongson VirtualiZation (LVZ) extension > support for LoongArch's TCG target. With this patch, it is now > possible to start a nested KVM-accelerated virtual machine on a > TCG-emulated virtual machine. > > Cc: Bibo Mao <maobibo@loongson.cn> > Cc: xianglai li <lixianglai@loongson.cn> > Signed-off-by: SignKirigami <prcups@krgm.moe> > Signed-off-by: Hengyu Yu <yuhengyu25@mails.ucas.ac.cn> > > SignKirigami (4): > target/loongarch: add LVZ CPU state and CSR metadata > target/loongarch: add LVZ guest runtime support > target/loongarch: translate LVZ CSR and trap instructions > target/loongarch: virtualize guest TLB and address translation > > target/loongarch/cpu-csr.h | 42 ++ > target/loongarch/cpu-mmu.h | 37 +- > target/loongarch/cpu.c | 132 ++++ > target/loongarch/cpu.h | 125 +++- > target/loongarch/cpu_helper.c | 119 ++-- > target/loongarch/csr.c | 122 ++++ > target/loongarch/csr.h | 3 + > target/loongarch/disas.c | 10 + > target/loongarch/insns.decode | 17 + > target/loongarch/internals.h | 8 +- > target/loongarch/kvm/kvm.c | 1 + > target/loongarch/machine.c | 249 ++++--- > target/loongarch/tcg/constant_timer.c | 62 +- > target/loongarch/tcg/csr_helper.c | 127 +++- > target/loongarch/tcg/helper.h | 30 +- > .../tcg/insn_trans/trans_privileged.c.inc | 353 +++++++++- > target/loongarch/tcg/op_helper.c | 83 ++- > target/loongarch/tcg/tcg_cpu.c | 182 +++-- > target/loongarch/tcg/tcg_loongarch.h | 6 +- > target/loongarch/tcg/tlb_helper.c | 629 +++++++++++++----- > target/loongarch/tcg/translate.c | 6 +- > target/loongarch/translate.h | 2 + > 22 files changed, 1909 insertions(+), 436 deletions(-) >
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