On Fri, Oct 20, 2023 at 12:51 PM Anup Patel <apatel@xxxxxxxxxxxxxxxx> wrote: > > The SBI v2.0 specification is now frozen. The SBI v2.0 specification defines > SBI debug console (DBCN) extension which replaces the legacy SBI v0.1 > functions sbi_console_putchar() and sbi_console_getchar(). > (Refer v2.0-rc5 at https://github.com/riscv-non-isa/riscv-sbi-doc/releases) > > This series adds support for SBI debug console (DBCN) extension in KVM RISC-V > and Linux RISC-V. > > To try these patches with KVM RISC-V, use KVMTOOL from riscv_sbi_dbcn_v1 > branch at: https://github.com/avpatel/kvmtool.git > > These patches can also be found in the riscv_sbi_dbcn_v3 branch at: > https://github.com/avpatel/linux.git > > Changes since v2: > - Rebased on Linux-6.6-rc5 > - Handled page-crossing in PATCH7 of v2 series > - Addressed Drew's comment in PATCH3 of v2 series > - Added new PATCH5 to make get-reg-list test aware of SBI DBCN extension > > Changes since v1: > - Remove use of #ifdef from PATCH4 and PATCH5 of the v1 series > - Improved commit description of PATCH3 in v1 series > - Introduced new PATCH3 in this series to allow some SBI extensions > (such as SBI DBCN) do to disabled by default so that older KVM user space > work fine and newer KVM user space have to explicitly opt-in for emulating > SBI DBCN. > - Introduced new PATCH5 in this series which adds inline version of > sbi_console_getchar() and sbi_console_putchar() for the case where > CONFIG_RISCV_SBI_V01 is disabled. > > Anup Patel (8): > RISC-V: Add defines for SBI debug console extension > RISC-V: KVM: Change the SBI specification version to v2.0 > RISC-V: KVM: Allow some SBI extensions to be disabled by default > RISC-V: KVM: Forward SBI DBCN extension to user-space > KVM: riscv: selftests: Add SBI DBCN extension to get-reg-list test > RISC-V: Add stubs for sbi_console_putchar/getchar() > tty/serial: Add RISC-V SBI debug console based earlycon > RISC-V: Enable SBI based earlycon support > > Atish Patra (1): > tty: Add SBI debug console support to HVC SBI driver Queued PATCH1 to PATCH5 for Linux-6.7 Remaining PATCH6 to PATCH9 are still under review. Thanks, Anup > > arch/riscv/configs/defconfig | 1 + > arch/riscv/configs/rv32_defconfig | 1 + > arch/riscv/include/asm/kvm_vcpu_sbi.h | 7 +- > arch/riscv/include/asm/sbi.h | 12 +++ > arch/riscv/include/uapi/asm/kvm.h | 1 + > arch/riscv/kvm/vcpu.c | 6 ++ > arch/riscv/kvm/vcpu_sbi.c | 61 +++++++------- > arch/riscv/kvm/vcpu_sbi_replace.c | 32 ++++++++ > drivers/tty/hvc/Kconfig | 2 +- > drivers/tty/hvc/hvc_riscv_sbi.c | 82 +++++++++++++++++-- > drivers/tty/serial/Kconfig | 2 +- > drivers/tty/serial/earlycon-riscv-sbi.c | 32 +++++++- > .../selftests/kvm/riscv/get-reg-list.c | 2 + > 13 files changed, 198 insertions(+), 43 deletions(-) > > -- > 2.34.1 > > > -- > kvm-riscv mailing list > kvm-riscv@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/kvm-riscv
