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RISC-V: KVM: Introduce KVM_EXIT_FAIL_ENTRY_NO_VSFILE

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Currently, we return CSR_HSTATUS as hardware_entry_failure_reason when
kvm_riscv_aia_alloc_hgei failed in KVM_DEV_RISCV_AIA_MODE_HWACCEL
mode, which is vague so it is better to return a well defined value
KVM_EXIT_FAIL_ENTRY_NO_VSFILE provided via uapi/asm/kvm.h.

Signed-off-by: BillXiang <xiangwencheng@lanxincomputing.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20250923053851.32863-1-xiangwencheng@lanxincomputing.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
BillXiang
2025-09-23 13:38:51 +08:00
committed by Anup Patel
parent d1c5620781
commit a2483d5d1e
2 changed files with 3 additions and 1 deletions
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2
arch/riscv/include/uapi/asm/kvm.h
View File

@@ -23,6 +23,8 @@
#define KVM_INTERRUPT_SET -1U #define KVM_INTERRUPT_SET -1U
#define KVM_INTERRUPT_UNSET -2U #define KVM_INTERRUPT_UNSET -2U
#define KVM_EXIT_FAIL_ENTRY_NO_VSFILE (1ULL << 0)
/* for KVM_GET_REGS and KVM_SET_REGS */ /* for KVM_GET_REGS and KVM_SET_REGS */
struct kvm_regs { struct kvm_regs {
}; };

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

@@ -814,7 +814,7 @@ int kvm_riscv_vcpu_aia_imsic_update(struct kvm_vcpu *vcpu)
/* For HW acceleration mode, we can't continue */ /* For HW acceleration mode, we can't continue */
if (kvm->arch.aia.mode == KVM_DEV_RISCV_AIA_MODE_HWACCEL) { if (kvm->arch.aia.mode == KVM_DEV_RISCV_AIA_MODE_HWACCEL) {
run->fail_entry.hardware_entry_failure_reason = run->fail_entry.hardware_entry_failure_reason =
CSR_HSTATUS; KVM_EXIT_FAIL_ENTRY_NO_VSFILE;
run->fail_entry.cpu = vcpu->cpu; run->fail_entry.cpu = vcpu->cpu;
run->exit_reason = KVM_EXIT_FAIL_ENTRY; run->exit_reason = KVM_EXIT_FAIL_ENTRY;
return 0; return 0;