mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-04-06 06:43:13 -04:00
Code Issues Packages Projects Releases Wiki Activity

RISC-V: KVM: Allow Zalasr extensions for Guest/VM

Browse Source 
Extend the KVM ISA extension ONE_REG interface to allow KVM user space
to detect and enable Zalasr extensions for Guest/VM.

Signed-off-by: Xu Lu <luxu.kernel@bytedance.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20251020042457.30915-5-luxu.kernel@bytedance.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Xu Lu
2025-10-20 12:24:56 +08:00
committed by Anup Patel
parent 39ad809dd2
commit 655d330c05
2 changed files with 3 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
arch/riscv/include/uapi/asm/kvm.h
View File

@@ -194,6 +194,7 @@ enum KVM_RISCV_ISA_EXT_ID {
KVM_RISCV_ISA_EXT_ZVFBFWMA,
KVM_RISCV_ISA_EXT_ZCLSD,
KVM_RISCV_ISA_EXT_ZILSD,
KVM_RISCV_ISA_EXT_ZALASR,
KVM_RISCV_ISA_EXT_MAX,
};

2
arch/riscv/kvm/vcpu_onereg.c
View File

@@ -50,6 +50,7 @@ static const unsigned long kvm_isa_ext_arr[] = {
KVM_ISA_EXT_ARR(ZAAMO),
KVM_ISA_EXT_ARR(ZABHA),
KVM_ISA_EXT_ARR(ZACAS),
KVM_ISA_EXT_ARR(ZALASR),
KVM_ISA_EXT_ARR(ZALRSC),
KVM_ISA_EXT_ARR(ZAWRS),
KVM_ISA_EXT_ARR(ZBA),
@@ -189,6 +190,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext)
case KVM_RISCV_ISA_EXT_ZAAMO:
case KVM_RISCV_ISA_EXT_ZABHA:
case KVM_RISCV_ISA_EXT_ZACAS:
case KVM_RISCV_ISA_EXT_ZALASR:
case KVM_RISCV_ISA_EXT_ZALRSC:
case KVM_RISCV_ISA_EXT_ZAWRS:
case KVM_RISCV_ISA_EXT_ZBA: