diff options
| author | Vincent Chen <vincent.chen@sifive.com> | 2023-06-05 14:07:16 +0300 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2023-06-08 17:16:51 +0300 |
| commit | 0f4b82579716b12bb88257bd7ea80f25c791fb2c (patch) | |
| tree | 067c4d467c13e5cf20f552ca40aebcc861201c32 /arch/riscv/kvm/Makefile | |
| parent | bf78f1ea6e5108a7ebd55be0853f0716433117a9 (diff) | |
| download | linux-0f4b82579716b12bb88257bd7ea80f25c791fb2c.tar.xz | |
riscv: KVM: Add vector lazy save/restore support
This patch adds vector context save/restore for guest VCPUs. To reduce the
impact on KVM performance, the implementation imitates the FP context
switch mechanism to lazily store and restore the vector context only when
the kernel enters/exits the in-kernel run loop and not during the KVM
world switch.
Signed-off-by: Vincent Chen <vincent.chen@sifive.com>
Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: Andy Chiu <andy.chiu@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Acked-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20230605110724.21391-20-andy.chiu@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/kvm/Makefile')
| -rw-r--r-- | arch/riscv/kvm/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/riscv/kvm/Makefile b/arch/riscv/kvm/Makefile index 8031b8912a0d..7b4c21f9aa6a 100644 --- a/arch/riscv/kvm/Makefile +++ b/arch/riscv/kvm/Makefile @@ -17,6 +17,7 @@ kvm-y += mmu.o kvm-y += vcpu.o kvm-y += vcpu_exit.o kvm-y += vcpu_fp.o +kvm-y += vcpu_vector.o kvm-y += vcpu_insn.o kvm-y += vcpu_switch.o kvm-y += vcpu_sbi.o |