[PW_SID:1076438] Support runtime configuration for per-VM's HGATP mode by linux-riscv-bot · Pull Request #1712 · linux-riscv/linux

linux-riscv-bot · 2026-04-02T14:26:10Z

PR for series 1076438 applied to workflow__riscv__for-next

Name: Support runtime configuration for per-VM's HGATP mode
URL: https://patchwork.kernel.org/project/linux-riscv/list/?series=1076438
Version: 7

Introduces one per-VM architecture-specific fields to support runtime configuration of the G-stage page table format: - kvm->arch.pgd_levels: the corresponding number of page table levels for the selected mode. These fields replace the previous global variables kvm_riscv_gstage_mode and kvm_riscv_gstage_pgd_levels, enabling different virtual machines to independently select their G-stage page table format instead of being forced to share the maximum mode detected by the kernel at boot time. Signed-off-by: Fangyu Yu <fangyu.yu@linux.alibaba.com> Reviewed-by: Andrew Jones <andrew.jones@oss.qualcomm.com> Reviewed-by: Anup Patel <anup@brainfault.org> Reviewed-by: Guo Ren <guoren@kernel.org> Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

Gstage page-table helpers frequently chase gstage->kvm->arch to fetch pgd_levels. This adds noise and repeats the same dereference chain in hot paths. Add pgd_levels to struct kvm_gstage and initialize it from kvm->arch when setting up a gstage instance. Introduce kvm_riscv_gstage_init() to centralize initialization and switch gstage code to use gstage->pgd_levels. Suggested-by: Anup Patel <anup@brainfault.org> Signed-off-by: Fangyu Yu <fangyu.yu@linux.alibaba.com> Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

Extend kvm_riscv_gstage_mode_detect() to record HGATP.MODE values in a bitmask. Keep tracking the maximum supported G-stage page table level for existing internal users. Also provide lightweight helpers to retrieve the supported-mode bitmask and validate a requested HGATP.MODE against it. Signed-off-by: Fangyu Yu <fangyu.yu@linux.alibaba.com> Reviewed-by: Andrew Jones <andrew.jones@oss.qualcomm.com> Reviewed-by: Guo Ren <guoren@kernel.org> Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

Add a VM capability that allows userspace to select the G-stage page table format by setting HGATP.MODE on a per-VM basis. Userspace enables the capability via KVM_ENABLE_CAP, passing the requested HGATP.MODE in args[0]. The request is rejected with -EINVAL if the mode is not supported by the host, and with -EBUSY if the VM has already been committed (e.g. vCPUs have been created or any memslot is populated). KVM_CHECK_EXTENSION(KVM_CAP_RISCV_SET_HGATP_MODE) returns a bitmask of the HGATP.MODE formats supported by the host. Signed-off-by: Fangyu Yu <fangyu.yu@linux.alibaba.com> Reviewed-by: Andrew Jones <andrew.jones@oss.qualcomm.com> Reviewed-by: Guo Ren <guoren@kernel.org> Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

linux-riscv-bot · 2026-04-02T14:32:26Z

Patch 1: "[v7,1/4] RISC-V: KVM: Support runtime configuration for per-VM's HGATP mode"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 138.37 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T14:49:59Z

Patch 1: "[v7,1/4] RISC-V: KVM: Support runtime configuration for per-VM's HGATP mode"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1051.28 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T15:13:36Z

Patch 1: "[v7,1/4] RISC-V: KVM: Support runtime configuration for per-VM's HGATP mode"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1415.35 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T15:14:03Z

Patch 1: "[v7,1/4] RISC-V: KVM: Support runtime configuration for per-VM's HGATP mode"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 25.38 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T15:14:32Z

Patch 1: "[v7,1/4] RISC-V: KVM: Support runtime configuration for per-VM's HGATP mode"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 26.77 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T15:14:37Z

Patch 1: "[v7,1/4] RISC-V: KVM: Support runtime configuration for per-VM's HGATP mode"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 3.19 seconds
Result: WARNING
Output:

CHECK: Alignment should match open parenthesis
#402: FILE: arch/riscv/kvm/mmu.c:595:
+		kvm_riscv_gstage_unmap_range(&gstage, 0UL,
+			kvm_riscv_gstage_gpa_size(kvm->arch.pgd_levels), false);

total: 0 errors, 0 warnings, 1 checks, 365 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit 83e48c398825 ("RISC-V: KVM: Support runtime configuration for per-VM's HGATP mode") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 0 warnings, 1 checks, 365 lines checked
CHECK: Alignment should match open parenthesis

linux-riscv-bot · 2026-04-02T15:16:03Z

Patch 1: "[v7,1/4] RISC-V: KVM: Support runtime configuration for per-VM's HGATP mode"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 83.77 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T15:16:05Z

Patch 1: "[v7,1/4] RISC-V: KVM: Support runtime configuration for per-VM's HGATP mode"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.24 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T15:16:07Z

Patch 1: "[v7,1/4] RISC-V: KVM: Support runtime configuration for per-VM's HGATP mode"
kdoc
Desc: Detects for kdoc errors
Duration: 0.88 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T15:16:09Z

Patch 1: "[v7,1/4] RISC-V: KVM: Support runtime configuration for per-VM's HGATP mode"
module-param
Desc: Detect module_param changes
Duration: 0.26 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T15:16:11Z

Patch 1: "[v7,1/4] RISC-V: KVM: Support runtime configuration for per-VM's HGATP mode"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.22 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T15:16:13Z

Patch 1: "[v7,1/4] RISC-V: KVM: Support runtime configuration for per-VM's HGATP mode"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.30 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T15:18:47Z

Patch 2: "[v7,2/4] RISC-V: KVM: Cache gstage pgd_levels in struct kvm_gstage"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 136.99 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T15:36:18Z

Patch 2: "[v7,2/4] RISC-V: KVM: Cache gstage pgd_levels in struct kvm_gstage"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1049.21 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T15:59:52Z

Patch 2: "[v7,2/4] RISC-V: KVM: Cache gstage pgd_levels in struct kvm_gstage"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1412.98 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:00:19Z

Patch 2: "[v7,2/4] RISC-V: KVM: Cache gstage pgd_levels in struct kvm_gstage"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 25.48 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:00:48Z

Patch 2: "[v7,2/4] RISC-V: KVM: Cache gstage pgd_levels in struct kvm_gstage"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 26.92 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:00:51Z

Patch 2: "[v7,2/4] RISC-V: KVM: Cache gstage pgd_levels in struct kvm_gstage"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 1.25 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:02:18Z

Patch 2: "[v7,2/4] RISC-V: KVM: Cache gstage pgd_levels in struct kvm_gstage"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 85.35 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:02:20Z

Patch 2: "[v7,2/4] RISC-V: KVM: Cache gstage pgd_levels in struct kvm_gstage"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.23 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:02:22Z

Patch 2: "[v7,2/4] RISC-V: KVM: Cache gstage pgd_levels in struct kvm_gstage"
kdoc
Desc: Detects for kdoc errors
Duration: 0.85 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:02:24Z

Patch 2: "[v7,2/4] RISC-V: KVM: Cache gstage pgd_levels in struct kvm_gstage"
module-param
Desc: Detect module_param changes
Duration: 0.26 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:02:26Z

Patch 2: "[v7,2/4] RISC-V: KVM: Cache gstage pgd_levels in struct kvm_gstage"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.22 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:02:29Z

Patch 2: "[v7,2/4] RISC-V: KVM: Cache gstage pgd_levels in struct kvm_gstage"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.29 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:05:02Z

Patch 3: "[v7,3/4] RISC-V: KVM: Detect and expose supported HGATP G-stage modes"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 138.00 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:22:33Z

Patch 3: "[v7,3/4] RISC-V: KVM: Detect and expose supported HGATP G-stage modes"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1049.61 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:46:15Z

Patch 3: "[v7,3/4] RISC-V: KVM: Detect and expose supported HGATP G-stage modes"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1420.66 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:46:42Z

Patch 3: "[v7,3/4] RISC-V: KVM: Detect and expose supported HGATP G-stage modes"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 24.96 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:47:13Z

Patch 3: "[v7,3/4] RISC-V: KVM: Detect and expose supported HGATP G-stage modes"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 26.52 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:47:16Z

Patch 3: "[v7,3/4] RISC-V: KVM: Detect and expose supported HGATP G-stage modes"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 1.04 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:48:42Z

Patch 3: "[v7,3/4] RISC-V: KVM: Detect and expose supported HGATP G-stage modes"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 84.27 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:48:44Z

Patch 3: "[v7,3/4] RISC-V: KVM: Detect and expose supported HGATP G-stage modes"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.24 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:48:46Z

Patch 3: "[v7,3/4] RISC-V: KVM: Detect and expose supported HGATP G-stage modes"
kdoc
Desc: Detects for kdoc errors
Duration: 0.87 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:48:48Z

Patch 3: "[v7,3/4] RISC-V: KVM: Detect and expose supported HGATP G-stage modes"
module-param
Desc: Detect module_param changes
Duration: 0.26 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:48:50Z

Patch 3: "[v7,3/4] RISC-V: KVM: Detect and expose supported HGATP G-stage modes"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.23 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:48:52Z

Patch 3: "[v7,3/4] RISC-V: KVM: Detect and expose supported HGATP G-stage modes"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.31 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T16:51:22Z

Patch 4: "[v7,4/4] RISC-V: KVM: add KVM_CAP_RISCV_SET_HGATP_MODE"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 136.39 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T17:08:51Z

Patch 4: "[v7,4/4] RISC-V: KVM: add KVM_CAP_RISCV_SET_HGATP_MODE"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1047.19 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T17:32:28Z

Patch 4: "[v7,4/4] RISC-V: KVM: add KVM_CAP_RISCV_SET_HGATP_MODE"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1415.17 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T17:32:55Z

Patch 4: "[v7,4/4] RISC-V: KVM: add KVM_CAP_RISCV_SET_HGATP_MODE"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 25.39 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T17:33:24Z

Patch 4: "[v7,4/4] RISC-V: KVM: add KVM_CAP_RISCV_SET_HGATP_MODE"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 26.73 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T17:33:27Z

Patch 4: "[v7,4/4] RISC-V: KVM: add KVM_CAP_RISCV_SET_HGATP_MODE"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 1.21 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T17:34:52Z

Patch 4: "[v7,4/4] RISC-V: KVM: add KVM_CAP_RISCV_SET_HGATP_MODE"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 83.77 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T17:34:54Z

Patch 4: "[v7,4/4] RISC-V: KVM: add KVM_CAP_RISCV_SET_HGATP_MODE"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.24 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T17:34:56Z

Patch 4: "[v7,4/4] RISC-V: KVM: add KVM_CAP_RISCV_SET_HGATP_MODE"
kdoc
Desc: Detects for kdoc errors
Duration: 0.89 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T17:34:58Z

Patch 4: "[v7,4/4] RISC-V: KVM: add KVM_CAP_RISCV_SET_HGATP_MODE"
module-param
Desc: Detect module_param changes
Duration: 0.29 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T17:35:00Z

Patch 4: "[v7,4/4] RISC-V: KVM: add KVM_CAP_RISCV_SET_HGATP_MODE"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.22 seconds
Result: PASS

linux-riscv-bot · 2026-04-02T17:35:02Z

Patch 4: "[v7,4/4] RISC-V: KVM: add KVM_CAP_RISCV_SET_HGATP_MODE"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.30 seconds
Result: PASS

fangyu0809 added 4 commits April 2, 2026 14:26

linux-riscv-bot closed this Apr 3, 2026

linux-riscv-bot deleted the pw1076438 branch April 3, 2026 04:48

Conversation

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026

Uh oh!

linux-riscv-bot commented Apr 2, 2026