From: Anup Patel <apatel@ventanamicro.com>
To: Paolo Bonzini <pbonzini@redhat.com>, Atish Patra <atishp@atishpatra.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Andrew Jones <ajones@ventanamicro.com>,
Heiko Stuebner <heiko@sntech.de>,
Samuel Ortiz <sameo@rivosinc.com>,
kvm@vger.kernel.org, kvm-riscv@lists.infradead.org,
linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
Anup Patel <apatel@ventanamicro.com>
Subject: [PATCH 6/7] RISC-V: KVM: Allow Zbc, Zbk* and Zk* extensions for Guest/VM
Date: Wed, 12 Jul 2023 21:40:46 +0530 [thread overview]
Message-ID: <20230712161047.1764756-7-apatel@ventanamicro.com> (raw)
In-Reply-To: <20230712161047.1764756-1-apatel@ventanamicro.com>
We extend the KVM ISA extension ONE_REG interface to allow KVM
user space to detect and enable Zbc, Zbk* and Zk* extensions for
Guest/VM.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
---
arch/riscv/include/uapi/asm/kvm.h | 11 +++++++++++
arch/riscv/kvm/vcpu_onereg.c | 22 ++++++++++++++++++++++
2 files changed, 33 insertions(+)
diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h
index 9c35e1427f73..182e7bdfc842 100644
--- a/arch/riscv/include/uapi/asm/kvm.h
+++ b/arch/riscv/include/uapi/asm/kvm.h
@@ -130,6 +130,17 @@ enum KVM_RISCV_ISA_EXT_ID {
KVM_RISCV_ISA_EXT_ZICSR,
KVM_RISCV_ISA_EXT_ZIFENCEI,
KVM_RISCV_ISA_EXT_ZIHPM,
+ KVM_RISCV_ISA_EXT_ZBC,
+ KVM_RISCV_ISA_EXT_ZBKB,
+ KVM_RISCV_ISA_EXT_ZBKC,
+ KVM_RISCV_ISA_EXT_ZBKX,
+ KVM_RISCV_ISA_EXT_ZKND,
+ KVM_RISCV_ISA_EXT_ZKNE,
+ KVM_RISCV_ISA_EXT_ZKNH,
+ KVM_RISCV_ISA_EXT_ZKR,
+ KVM_RISCV_ISA_EXT_ZKSED,
+ KVM_RISCV_ISA_EXT_ZKSH,
+ KVM_RISCV_ISA_EXT_ZKT,
KVM_RISCV_ISA_EXT_MAX,
};
diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c
index 36871a417e69..08e077260214 100644
--- a/arch/riscv/kvm/vcpu_onereg.c
+++ b/arch/riscv/kvm/vcpu_onereg.c
@@ -40,6 +40,10 @@ static const unsigned long kvm_isa_ext_arr[] = {
KVM_ISA_EXT_ARR(SVPBMT),
KVM_ISA_EXT_ARR(ZBA),
KVM_ISA_EXT_ARR(ZBB),
+ KVM_ISA_EXT_ARR(ZBC),
+ KVM_ISA_EXT_ARR(ZBKB),
+ KVM_ISA_EXT_ARR(ZBKC),
+ KVM_ISA_EXT_ARR(ZBKX),
KVM_ISA_EXT_ARR(ZBS),
KVM_ISA_EXT_ARR(ZICBOM),
KVM_ISA_EXT_ARR(ZICBOZ),
@@ -48,6 +52,13 @@ static const unsigned long kvm_isa_ext_arr[] = {
KVM_ISA_EXT_ARR(ZIFENCEI),
KVM_ISA_EXT_ARR(ZIHINTPAUSE),
KVM_ISA_EXT_ARR(ZIHPM),
+ KVM_ISA_EXT_ARR(ZKND),
+ KVM_ISA_EXT_ARR(ZKNE),
+ KVM_ISA_EXT_ARR(ZKNH),
+ KVM_ISA_EXT_ARR(ZKR),
+ KVM_ISA_EXT_ARR(ZKSED),
+ KVM_ISA_EXT_ARR(ZKSH),
+ KVM_ISA_EXT_ARR(ZKT),
};
static unsigned long kvm_riscv_vcpu_base2isa_ext(unsigned long base_ext)
@@ -89,12 +100,23 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext)
case KVM_RISCV_ISA_EXT_SVNAPOT:
case KVM_RISCV_ISA_EXT_ZBA:
case KVM_RISCV_ISA_EXT_ZBB:
+ case KVM_RISCV_ISA_EXT_ZBC:
+ case KVM_RISCV_ISA_EXT_ZBKB:
+ case KVM_RISCV_ISA_EXT_ZBKC:
+ case KVM_RISCV_ISA_EXT_ZBKX:
case KVM_RISCV_ISA_EXT_ZBS:
case KVM_RISCV_ISA_EXT_ZICNTR:
case KVM_RISCV_ISA_EXT_ZICSR:
case KVM_RISCV_ISA_EXT_ZIFENCEI:
case KVM_RISCV_ISA_EXT_ZIHINTPAUSE:
case KVM_RISCV_ISA_EXT_ZIHPM:
+ case KVM_RISCV_ISA_EXT_ZKND:
+ case KVM_RISCV_ISA_EXT_ZKNE:
+ case KVM_RISCV_ISA_EXT_ZKNH:
+ case KVM_RISCV_ISA_EXT_ZKR:
+ case KVM_RISCV_ISA_EXT_ZKSED:
+ case KVM_RISCV_ISA_EXT_ZKSH:
+ case KVM_RISCV_ISA_EXT_ZKT:
return false;
default:
break;
--
2.34.1
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next prev parent reply other threads:[~2023-07-12 16:11 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-12 16:10 [PATCH 0/7] KVM RISC-V ONE_REG ISA extension improvements Anup Patel
2023-07-12 16:10 ` [PATCH 1/7] RISC-V: KVM: Factor-out ONE_REG related code to its own source file Anup Patel
2023-07-13 10:57 ` Andrew Jones
2023-07-12 16:10 ` [PATCH 2/7] RISC-V: KVM: Extend ONE_REG to enable/disable multiple ISA extensions Anup Patel
2023-07-13 11:27 ` Andrew Jones
2023-07-12 16:10 ` [PATCH 3/7] RISC-V: KVM: Allow Zba and Zbs extensions for Guest/VM Anup Patel
2023-07-13 11:32 ` Andrew Jones
2023-07-12 16:10 ` [PATCH 4/7] RISC-V: KVM: Allow Zicntr, Zicsr, Zifencei, and Zihpm " Anup Patel
2023-07-13 11:45 ` Andrew Jones
2023-07-12 16:10 ` [PATCH 5/7] RISC-V: KVM: Sort ISA extensions alphabetically in ONE_REG interface Anup Patel
2023-07-13 11:47 ` Andrew Jones
2023-07-12 16:10 ` Anup Patel [this message]
2023-07-13 12:48 ` [PATCH 6/7] RISC-V: KVM: Allow Zbc, Zbk* and Zk* extensions for Guest/VM Andrew Jones
2023-07-12 16:10 ` [PATCH 7/7] RISC-V: KVM: Allow Zvb* and Zvk* " Anup Patel
2023-07-13 12:49 ` Andrew Jones
2023-07-17 3:54 ` [PATCH 0/7] KVM RISC-V ONE_REG ISA extension improvements Anup Patel
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