RISC-V: KVM: Add support for Svpbmt inside Guest/VM

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The Guest/VM can use Svpbmt in VS-stage page tables when allowed by the
Hypervisor using the henvcfg.PBMTE bit.

We add Svpbmt support for the KVM Guest/VM which can be enabled/disabled
by the KVM user-space (QEMU/KVMTOOL) using the ISA extension ONE_REG
interface.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>

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Anup Patel 2022-07-29 17:15:18 +05:30 • committed by Anup Patel

parent 659ad6d82c

commit 6bb2e00ea3

3 changed files with 33 additions and 0 deletions

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16

arch/riscv/include/asm/csr.h

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1

arch/riscv/include/uapi/asm/kvm.h

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16

arch/riscv/kvm/vcpu.c

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