RISC-V: KVM: Add common nested acceleration support

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Add a common nested acceleration support which will be shared by
all parts of KVM RISC-V. This nested acceleration support detects
and enables SBI NACL extension usage based on static keys which
ensures minimum impact on the non-nested scenario.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20241020194734.58686-9-apatel@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>

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Anup Patel 2024-10-21 01:17:29 +05:30 • committed by Anup Patel

parent 5daf89e73d

commit d466c19cea

4 changed files with 441 additions and 2 deletions

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239

arch/riscv/include/asm/kvm_nacl.h

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1

arch/riscv/kvm/Makefile

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51

arch/riscv/kvm/main.c

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152

arch/riscv/kvm/nacl.c

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