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From: Huacai Chen <chenhuacai@loongson.cn>
To: Paolo Bonzini <pbonzini@redhat.com>,
Huacai Chen <chenhuacai@kernel.org>
Cc: kvm@vger.kernel.org, loongarch@lists.linux.dev,
linux-kernel@vger.kernel.org, Xuerui Wang <kernel@xen0n.name>,
Jiaxun Yang <jiaxun.yang@flygoat.com>,
Huacai Chen <chenhuacai@loongson.cn>
Subject: [GIT PULL] LoongArch KVM changes for v6.7
Date: Thu, 5 Oct 2023 17:18:25 +0800
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[GIT,PULL] LoongArch KVM changes for v6.7
|
|
Pull-request
git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson.git tags/loongarch-kvm-6.7Message
Huacai Chen
Oct. 5, 2023, 9:18 a.m. UTC
The following changes since commit 8a749fd1a8720d4619c91c8b6e7528c0a355c0aa:
Linux 6.6-rc4 (2023-10-01 14:15:13 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson.git tags/loongarch-kvm-6.7
for you to fetch changes up to 2c10cda4b777be4be9d9e69e4f70c818dbb15e21:
LoongArch: KVM: Add maintainers for LoongArch KVM (2023-10-02 10:01:29 +0800)
----------------------------------------------------------------
LoongArch KVM changes for v6.7
Add LoongArch's KVM support. Loongson 3A5000/3A6000 supports hardware
assisted virtualization. With cpu virtualization, there are separate
hw-supported user mode and kernel mode in guest mode. With memory
virtualization, there are two-level hw mmu table for guest mode and host
mode. Also there is separate hw cpu timer with consant frequency in
guest mode, so that vm can migrate between hosts with different freq.
Currently, we are able to boot LoongArch Linux guests.
Few key aspects of KVM LoongArch added by this series are:
1. Enable kvm hardware features when kvm module is loaded.
2. Implement VM and vcpu related ioctl interface such as vcpu create,
vcpu run etc. GET_ONE_REG/SET_ONE_REG ioctl commands are use to
get general registers one by one.
3. Hardware access about MMU, timer and csr are emulated in kernel.
4. Hardwares such as mmio and iocsr device are emulated in user space
such as IPI, irqchips, pci devices etc.
----------------------------------------------------------------
Tianrui Zhao (25):
LoongArch: KVM: Add kvm related header files
LoongArch: KVM: Implement kvm module related interface
LoongArch: KVM: Implement kvm hardware enable, disable interface
LoongArch: KVM: Implement VM related functions
LoongArch: KVM: Add vcpu related header files
LoongArch: KVM: Implement basic vcpu interfaces
LoongArch: KVM: Implement basic vcpu ioctl interfaces
LoongArch: KVM: Implement fpu operations for vcpu
LoongArch: KVM: Implement vcpu interrupt operations
LoongArch: KVM: Implement vcpu load and vcpu put operations
LoongArch: KVM: Implement misc vcpu related interfaces
LoongArch: KVM: Implement vcpu timer operations
LoongArch: KVM: Implement virtual machine tlb operations
LoongArch: KVM: Implement kvm mmu operations
LoongArch: KVM: Implement handle csr exception
LoongArch: KVM: Implement handle iocsr exception
LoongArch: KVM: Implement handle idle exception
LoongArch: KVM: Implement handle gspr exception
LoongArch: KVM: Implement handle mmio exception
LoongArch: KVM: Implement handle fpu exception
LoongArch: KVM: Implement kvm exception vectors
LoongArch: KVM: Implement vcpu world switch
LoongArch: KVM: Enable kvm config and add the makefile
LoongArch: KVM: Supplement kvm document about LoongArch-specific part
LoongArch: KVM: Add maintainers for LoongArch KVM
Documentation/virt/kvm/api.rst | 70 ++-
MAINTAINERS | 12 +
arch/loongarch/Kbuild | 2 +
arch/loongarch/Kconfig | 6 +
arch/loongarch/configs/loongson3_defconfig | 2 +
arch/loongarch/include/asm/inst.h | 16 +
arch/loongarch/include/asm/kvm_csr.h | 211 +++++++
arch/loongarch/include/asm/kvm_host.h | 237 ++++++++
arch/loongarch/include/asm/kvm_mmu.h | 139 +++++
arch/loongarch/include/asm/kvm_types.h | 11 +
arch/loongarch/include/asm/kvm_vcpu.h | 93 +++
arch/loongarch/include/asm/loongarch.h | 19 +-
arch/loongarch/include/uapi/asm/kvm.h | 108 ++++
arch/loongarch/kernel/asm-offsets.c | 32 +
arch/loongarch/kvm/Kconfig | 40 ++
arch/loongarch/kvm/Makefile | 22 +
arch/loongarch/kvm/exit.c | 696 +++++++++++++++++++++
arch/loongarch/kvm/interrupt.c | 183 ++++++
arch/loongarch/kvm/main.c | 420 +++++++++++++
arch/loongarch/kvm/mmu.c | 914 ++++++++++++++++++++++++++++
arch/loongarch/kvm/switch.S | 250 ++++++++
arch/loongarch/kvm/timer.c | 197 ++++++
arch/loongarch/kvm/tlb.c | 32 +
arch/loongarch/kvm/trace.h | 162 +++++
arch/loongarch/kvm/vcpu.c | 939 +++++++++++++++++++++++++++++
arch/loongarch/kvm/vm.c | 94 +++
include/uapi/linux/kvm.h | 9 +
27 files changed, 4902 insertions(+), 14 deletions(-)
create mode 100644 arch/loongarch/include/asm/kvm_csr.h
create mode 100644 arch/loongarch/include/asm/kvm_host.h
create mode 100644 arch/loongarch/include/asm/kvm_mmu.h
create mode 100644 arch/loongarch/include/asm/kvm_types.h
create mode 100644 arch/loongarch/include/asm/kvm_vcpu.h
create mode 100644 arch/loongarch/include/uapi/asm/kvm.h
create mode 100644 arch/loongarch/kvm/Kconfig
create mode 100644 arch/loongarch/kvm/Makefile
create mode 100644 arch/loongarch/kvm/exit.c
create mode 100644 arch/loongarch/kvm/interrupt.c
create mode 100644 arch/loongarch/kvm/main.c
create mode 100644 arch/loongarch/kvm/mmu.c
create mode 100644 arch/loongarch/kvm/switch.S
create mode 100644 arch/loongarch/kvm/timer.c
create mode 100644 arch/loongarch/kvm/tlb.c
create mode 100644 arch/loongarch/kvm/trace.h
create mode 100644 arch/loongarch/kvm/vcpu.c
create mode 100644 arch/loongarch/kvm/vm.c
Comments
Hi, Paolo, Excuse me, but this is just a gentle reminder. The 6.7 merge window is coming soon, have you missed this PR mail? Or should I rebase to 6.6-rc7 to send a new PR (a randconfig build error is fixed in 6.6-rc7)? Huacai On Thu, Oct 5, 2023 at 5:18 PM Huacai Chen <chenhuacai@loongson.cn> wrote: > > The following changes since commit 8a749fd1a8720d4619c91c8b6e7528c0a355c0aa: > > Linux 6.6-rc4 (2023-10-01 14:15:13 -0700) > > are available in the Git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson.git tags/loongarch-kvm-6.7 > > for you to fetch changes up to 2c10cda4b777be4be9d9e69e4f70c818dbb15e21: > > LoongArch: KVM: Add maintainers for LoongArch KVM (2023-10-02 10:01:29 +0800) > > ---------------------------------------------------------------- > LoongArch KVM changes for v6.7 > > Add LoongArch's KVM support. Loongson 3A5000/3A6000 supports hardware > assisted virtualization. With cpu virtualization, there are separate > hw-supported user mode and kernel mode in guest mode. With memory > virtualization, there are two-level hw mmu table for guest mode and host > mode. Also there is separate hw cpu timer with consant frequency in > guest mode, so that vm can migrate between hosts with different freq. > Currently, we are able to boot LoongArch Linux guests. > > Few key aspects of KVM LoongArch added by this series are: > 1. Enable kvm hardware features when kvm module is loaded. > 2. Implement VM and vcpu related ioctl interface such as vcpu create, > vcpu run etc. GET_ONE_REG/SET_ONE_REG ioctl commands are use to > get general registers one by one. > 3. Hardware access about MMU, timer and csr are emulated in kernel. > 4. Hardwares such as mmio and iocsr device are emulated in user space > such as IPI, irqchips, pci devices etc. > > ---------------------------------------------------------------- > Tianrui Zhao (25): > LoongArch: KVM: Add kvm related header files > LoongArch: KVM: Implement kvm module related interface > LoongArch: KVM: Implement kvm hardware enable, disable interface > LoongArch: KVM: Implement VM related functions > LoongArch: KVM: Add vcpu related header files > LoongArch: KVM: Implement basic vcpu interfaces > LoongArch: KVM: Implement basic vcpu ioctl interfaces > LoongArch: KVM: Implement fpu operations for vcpu > LoongArch: KVM: Implement vcpu interrupt operations > LoongArch: KVM: Implement vcpu load and vcpu put operations > LoongArch: KVM: Implement misc vcpu related interfaces > LoongArch: KVM: Implement vcpu timer operations > LoongArch: KVM: Implement virtual machine tlb operations > LoongArch: KVM: Implement kvm mmu operations > LoongArch: KVM: Implement handle csr exception > LoongArch: KVM: Implement handle iocsr exception > LoongArch: KVM: Implement handle idle exception > LoongArch: KVM: Implement handle gspr exception > LoongArch: KVM: Implement handle mmio exception > LoongArch: KVM: Implement handle fpu exception > LoongArch: KVM: Implement kvm exception vectors > LoongArch: KVM: Implement vcpu world switch > LoongArch: KVM: Enable kvm config and add the makefile > LoongArch: KVM: Supplement kvm document about LoongArch-specific part > LoongArch: KVM: Add maintainers for LoongArch KVM > > Documentation/virt/kvm/api.rst | 70 ++- > MAINTAINERS | 12 + > arch/loongarch/Kbuild | 2 + > arch/loongarch/Kconfig | 6 + > arch/loongarch/configs/loongson3_defconfig | 2 + > arch/loongarch/include/asm/inst.h | 16 + > arch/loongarch/include/asm/kvm_csr.h | 211 +++++++ > arch/loongarch/include/asm/kvm_host.h | 237 ++++++++ > arch/loongarch/include/asm/kvm_mmu.h | 139 +++++ > arch/loongarch/include/asm/kvm_types.h | 11 + > arch/loongarch/include/asm/kvm_vcpu.h | 93 +++ > arch/loongarch/include/asm/loongarch.h | 19 +- > arch/loongarch/include/uapi/asm/kvm.h | 108 ++++ > arch/loongarch/kernel/asm-offsets.c | 32 + > arch/loongarch/kvm/Kconfig | 40 ++ > arch/loongarch/kvm/Makefile | 22 + > arch/loongarch/kvm/exit.c | 696 +++++++++++++++++++++ > arch/loongarch/kvm/interrupt.c | 183 ++++++ > arch/loongarch/kvm/main.c | 420 +++++++++++++ > arch/loongarch/kvm/mmu.c | 914 ++++++++++++++++++++++++++++ > arch/loongarch/kvm/switch.S | 250 ++++++++ > arch/loongarch/kvm/timer.c | 197 ++++++ > arch/loongarch/kvm/tlb.c | 32 + > arch/loongarch/kvm/trace.h | 162 +++++ > arch/loongarch/kvm/vcpu.c | 939 +++++++++++++++++++++++++++++ > arch/loongarch/kvm/vm.c | 94 +++ > include/uapi/linux/kvm.h | 9 + > 27 files changed, 4902 insertions(+), 14 deletions(-) > create mode 100644 arch/loongarch/include/asm/kvm_csr.h > create mode 100644 arch/loongarch/include/asm/kvm_host.h > create mode 100644 arch/loongarch/include/asm/kvm_mmu.h > create mode 100644 arch/loongarch/include/asm/kvm_types.h > create mode 100644 arch/loongarch/include/asm/kvm_vcpu.h > create mode 100644 arch/loongarch/include/uapi/asm/kvm.h > create mode 100644 arch/loongarch/kvm/Kconfig > create mode 100644 arch/loongarch/kvm/Makefile > create mode 100644 arch/loongarch/kvm/exit.c > create mode 100644 arch/loongarch/kvm/interrupt.c > create mode 100644 arch/loongarch/kvm/main.c > create mode 100644 arch/loongarch/kvm/mmu.c > create mode 100644 arch/loongarch/kvm/switch.S > create mode 100644 arch/loongarch/kvm/timer.c > create mode 100644 arch/loongarch/kvm/tlb.c > create mode 100644 arch/loongarch/kvm/trace.h > create mode 100644 arch/loongarch/kvm/vcpu.c > create mode 100644 arch/loongarch/kvm/vm.c
On 10/25/23 04:10, Huacai Chen wrote: > Hi, Paolo, Excuse me, but this is just a gentle reminder. The 6.7 merge > window is coming soon, have you missed this PR mail? Or should I rebase > to 6.6-rc7 to send a new PR (a randconfig build error is fixed in 6.6-rc7)? Hi, I am expecting some changes to Kconfig for 6.7 and wanted to pull this second, to solve the conflicts. There is no need to rebase, but it would be useful to point me to the fix in 6.6-rc7. Paolo
On Thu, Oct 26, 2023 at 7:54 AM Paolo Bonzini <pbonzini@redhat.com> wrote: > > On 10/25/23 04:10, Huacai Chen wrote: > > Hi, Paolo, Excuse me, but this is just a gentle reminder. The 6.7 merge > > window is coming soon, have you missed this PR mail? Or should I rebase > > to 6.6-rc7 to send a new PR (a randconfig build error is fixed in 6.6-rc7)? > > Hi, > > I am expecting some changes to Kconfig for 6.7 and wanted to pull this > second, to solve the conflicts. > > There is no need to rebase, but it would be useful to point me to the > fix in 6.6-rc7. OK, thanks. And the commit 449c2756c2323c9e32b2a2fa9 ("LoongArch: Export symbol invalid_pud_table for modules building") fixes the randconfig build error. Huacai > > Paolo >
On Thu, Oct 5, 2023 at 11:28 AM Huacai Chen <chenhuacai@loongson.cn> wrote: > > The following changes since commit 8a749fd1a8720d4619c91c8b6e7528c0a355c0aa: > > Linux 6.6-rc4 (2023-10-01 14:15:13 -0700) > > are available in the Git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson.git tags/loongarch-kvm-6.7 > > for you to fetch changes up to 2c10cda4b777be4be9d9e69e4f70c818dbb15e21: > > LoongArch: KVM: Add maintainers for LoongArch KVM (2023-10-02 10:01:29 +0800) Pulled, thanks. Paolo > > ---------------------------------------------------------------- > LoongArch KVM changes for v6.7 > > Add LoongArch's KVM support. Loongson 3A5000/3A6000 supports hardware > assisted virtualization. With cpu virtualization, there are separate > hw-supported user mode and kernel mode in guest mode. With memory > virtualization, there are two-level hw mmu table for guest mode and host > mode. Also there is separate hw cpu timer with consant frequency in > guest mode, so that vm can migrate between hosts with different freq. > Currently, we are able to boot LoongArch Linux guests. > > Few key aspects of KVM LoongArch added by this series are: > 1. Enable kvm hardware features when kvm module is loaded. > 2. Implement VM and vcpu related ioctl interface such as vcpu create, > vcpu run etc. GET_ONE_REG/SET_ONE_REG ioctl commands are use to > get general registers one by one. > 3. Hardware access about MMU, timer and csr are emulated in kernel. > 4. Hardwares such as mmio and iocsr device are emulated in user space > such as IPI, irqchips, pci devices etc. > > ---------------------------------------------------------------- > Tianrui Zhao (25): > LoongArch: KVM: Add kvm related header files > LoongArch: KVM: Implement kvm module related interface > LoongArch: KVM: Implement kvm hardware enable, disable interface > LoongArch: KVM: Implement VM related functions > LoongArch: KVM: Add vcpu related header files > LoongArch: KVM: Implement basic vcpu interfaces > LoongArch: KVM: Implement basic vcpu ioctl interfaces > LoongArch: KVM: Implement fpu operations for vcpu > LoongArch: KVM: Implement vcpu interrupt operations > LoongArch: KVM: Implement vcpu load and vcpu put operations > LoongArch: KVM: Implement misc vcpu related interfaces > LoongArch: KVM: Implement vcpu timer operations > LoongArch: KVM: Implement virtual machine tlb operations > LoongArch: KVM: Implement kvm mmu operations > LoongArch: KVM: Implement handle csr exception > LoongArch: KVM: Implement handle iocsr exception > LoongArch: KVM: Implement handle idle exception > LoongArch: KVM: Implement handle gspr exception > LoongArch: KVM: Implement handle mmio exception > LoongArch: KVM: Implement handle fpu exception > LoongArch: KVM: Implement kvm exception vectors > LoongArch: KVM: Implement vcpu world switch > LoongArch: KVM: Enable kvm config and add the makefile > LoongArch: KVM: Supplement kvm document about LoongArch-specific part > LoongArch: KVM: Add maintainers for LoongArch KVM > > Documentation/virt/kvm/api.rst | 70 ++- > MAINTAINERS | 12 + > arch/loongarch/Kbuild | 2 + > arch/loongarch/Kconfig | 6 + > arch/loongarch/configs/loongson3_defconfig | 2 + > arch/loongarch/include/asm/inst.h | 16 + > arch/loongarch/include/asm/kvm_csr.h | 211 +++++++ > arch/loongarch/include/asm/kvm_host.h | 237 ++++++++ > arch/loongarch/include/asm/kvm_mmu.h | 139 +++++ > arch/loongarch/include/asm/kvm_types.h | 11 + > arch/loongarch/include/asm/kvm_vcpu.h | 93 +++ > arch/loongarch/include/asm/loongarch.h | 19 +- > arch/loongarch/include/uapi/asm/kvm.h | 108 ++++ > arch/loongarch/kernel/asm-offsets.c | 32 + > arch/loongarch/kvm/Kconfig | 40 ++ > arch/loongarch/kvm/Makefile | 22 + > arch/loongarch/kvm/exit.c | 696 +++++++++++++++++++++ > arch/loongarch/kvm/interrupt.c | 183 ++++++ > arch/loongarch/kvm/main.c | 420 +++++++++++++ > arch/loongarch/kvm/mmu.c | 914 ++++++++++++++++++++++++++++ > arch/loongarch/kvm/switch.S | 250 ++++++++ > arch/loongarch/kvm/timer.c | 197 ++++++ > arch/loongarch/kvm/tlb.c | 32 + > arch/loongarch/kvm/trace.h | 162 +++++ > arch/loongarch/kvm/vcpu.c | 939 +++++++++++++++++++++++++++++ > arch/loongarch/kvm/vm.c | 94 +++ > include/uapi/linux/kvm.h | 9 + > 27 files changed, 4902 insertions(+), 14 deletions(-) > create mode 100644 arch/loongarch/include/asm/kvm_csr.h > create mode 100644 arch/loongarch/include/asm/kvm_host.h > create mode 100644 arch/loongarch/include/asm/kvm_mmu.h > create mode 100644 arch/loongarch/include/asm/kvm_types.h > create mode 100644 arch/loongarch/include/asm/kvm_vcpu.h > create mode 100644 arch/loongarch/include/uapi/asm/kvm.h > create mode 100644 arch/loongarch/kvm/Kconfig > create mode 100644 arch/loongarch/kvm/Makefile > create mode 100644 arch/loongarch/kvm/exit.c > create mode 100644 arch/loongarch/kvm/interrupt.c > create mode 100644 arch/loongarch/kvm/main.c > create mode 100644 arch/loongarch/kvm/mmu.c > create mode 100644 arch/loongarch/kvm/switch.S > create mode 100644 arch/loongarch/kvm/timer.c > create mode 100644 arch/loongarch/kvm/tlb.c > create mode 100644 arch/loongarch/kvm/trace.h > create mode 100644 arch/loongarch/kvm/vcpu.c > create mode 100644 arch/loongarch/kvm/vm.c >