| Message ID | 20230401112730.2105240-1-apatel@ventanamicro.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | RISC-V: KVM: Allow Zbb extension for Guest/VM | expand |
On Sat, Apr 1, 2023 at 4:57 PM Anup Patel <apatel@ventanamicro.com> wrote: > > We extend the KVM ISA extension ONE_REG interface to allow KVM > user space to detect and enable Zbb extension for Guest/VM. > > Signed-off-by: Anup Patel <apatel@ventanamicro.com> > --- > arch/riscv/include/uapi/asm/kvm.h | 1 + > arch/riscv/kvm/vcpu.c | 2 ++ > 2 files changed, 3 insertions(+) > > diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h > index d8ead5952ed9..47a7c3958229 100644 > --- a/arch/riscv/include/uapi/asm/kvm.h > +++ b/arch/riscv/include/uapi/asm/kvm.h > @@ -106,6 +106,7 @@ enum KVM_RISCV_ISA_EXT_ID { > KVM_RISCV_ISA_EXT_SVINVAL, > KVM_RISCV_ISA_EXT_ZIHINTPAUSE, > KVM_RISCV_ISA_EXT_ZICBOM, > + KVM_RISCV_ISA_EXT_ZBB, > KVM_RISCV_ISA_EXT_MAX, > }; > > diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c > index 3112697cb12d..02b49cb94561 100644 > --- a/arch/riscv/kvm/vcpu.c > +++ b/arch/riscv/kvm/vcpu.c > @@ -61,6 +61,7 @@ static const unsigned long kvm_isa_ext_arr[] = { > KVM_ISA_EXT_ARR(SSTC), > KVM_ISA_EXT_ARR(SVINVAL), > KVM_ISA_EXT_ARR(SVPBMT), > + KVM_ISA_EXT_ARR(ZBB), > KVM_ISA_EXT_ARR(ZIHINTPAUSE), > KVM_ISA_EXT_ARR(ZICBOM), > }; > @@ -99,6 +100,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext) > case KVM_RISCV_ISA_EXT_SSTC: > case KVM_RISCV_ISA_EXT_SVINVAL: > case KVM_RISCV_ISA_EXT_ZIHINTPAUSE: > + case KVM_RISCV_ISA_EXT_ZBB: > return false; > default: > break; > -- > 2.34.1 > Reviewed-by: Atish Patra <atishp@rivosinc.com>
On Sat, Apr 01, 2023 at 04:57:30PM +0530, Anup Patel wrote: > We extend the KVM ISA extension ONE_REG interface to allow KVM > user space to detect and enable Zbb extension for Guest/VM. > > Signed-off-by: Anup Patel <apatel@ventanamicro.com> > --- > arch/riscv/include/uapi/asm/kvm.h | 1 + > arch/riscv/kvm/vcpu.c | 2 ++ > 2 files changed, 3 insertions(+) > Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
On Sat, Apr 1, 2023 at 4:57 PM Anup Patel <apatel@ventanamicro.com> wrote: > > We extend the KVM ISA extension ONE_REG interface to allow KVM > user space to detect and enable Zbb extension for Guest/VM. > > Signed-off-by: Anup Patel <apatel@ventanamicro.com> Queued this patch for Linux-6.4 Thanks, Anup > --- > arch/riscv/include/uapi/asm/kvm.h | 1 + > arch/riscv/kvm/vcpu.c | 2 ++ > 2 files changed, 3 insertions(+) > > diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h > index d8ead5952ed9..47a7c3958229 100644 > --- a/arch/riscv/include/uapi/asm/kvm.h > +++ b/arch/riscv/include/uapi/asm/kvm.h > @@ -106,6 +106,7 @@ enum KVM_RISCV_ISA_EXT_ID { > KVM_RISCV_ISA_EXT_SVINVAL, > KVM_RISCV_ISA_EXT_ZIHINTPAUSE, > KVM_RISCV_ISA_EXT_ZICBOM, > + KVM_RISCV_ISA_EXT_ZBB, > KVM_RISCV_ISA_EXT_MAX, > }; > > diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c > index 3112697cb12d..02b49cb94561 100644 > --- a/arch/riscv/kvm/vcpu.c > +++ b/arch/riscv/kvm/vcpu.c > @@ -61,6 +61,7 @@ static const unsigned long kvm_isa_ext_arr[] = { > KVM_ISA_EXT_ARR(SSTC), > KVM_ISA_EXT_ARR(SVINVAL), > KVM_ISA_EXT_ARR(SVPBMT), > + KVM_ISA_EXT_ARR(ZBB), > KVM_ISA_EXT_ARR(ZIHINTPAUSE), > KVM_ISA_EXT_ARR(ZICBOM), > }; > @@ -99,6 +100,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext) > case KVM_RISCV_ISA_EXT_SSTC: > case KVM_RISCV_ISA_EXT_SVINVAL: > case KVM_RISCV_ISA_EXT_ZIHINTPAUSE: > + case KVM_RISCV_ISA_EXT_ZBB: > return false; > default: > break; > -- > 2.34.1 >
diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h index d8ead5952ed9..47a7c3958229 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -106,6 +106,7 @@ enum KVM_RISCV_ISA_EXT_ID { KVM_RISCV_ISA_EXT_SVINVAL, KVM_RISCV_ISA_EXT_ZIHINTPAUSE, KVM_RISCV_ISA_EXT_ZICBOM, + KVM_RISCV_ISA_EXT_ZBB, KVM_RISCV_ISA_EXT_MAX, }; diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c index 3112697cb12d..02b49cb94561 100644 --- a/arch/riscv/kvm/vcpu.c +++ b/arch/riscv/kvm/vcpu.c @@ -61,6 +61,7 @@ static const unsigned long kvm_isa_ext_arr[] = { KVM_ISA_EXT_ARR(SSTC), KVM_ISA_EXT_ARR(SVINVAL), KVM_ISA_EXT_ARR(SVPBMT), + KVM_ISA_EXT_ARR(ZBB), KVM_ISA_EXT_ARR(ZIHINTPAUSE), KVM_ISA_EXT_ARR(ZICBOM), }; @@ -99,6 +100,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext) case KVM_RISCV_ISA_EXT_SSTC: case KVM_RISCV_ISA_EXT_SVINVAL: case KVM_RISCV_ISA_EXT_ZIHINTPAUSE: + case KVM_RISCV_ISA_EXT_ZBB: return false; default: break;
We extend the KVM ISA extension ONE_REG interface to allow KVM user space to detect and enable Zbb extension for Guest/VM. Signed-off-by: Anup Patel <apatel@ventanamicro.com> --- arch/riscv/include/uapi/asm/kvm.h | 1 + arch/riscv/kvm/vcpu.c | 2 ++ 2 files changed, 3 insertions(+)