armbian/linux-cix
0
0
Fork 0
mirror of https://github.com/armbian/linux-cix.git synced 2026-01-06 12:30:45 -08:00
Code Issues Packages Projects Releases Wiki Activity

RISC-V: KVM: Add in-kernel emulation of AIA APLIC

Browse Source 
There is no virtualization support in AIA APLIC so we add in-kernel
emulation of AIA APLIC which only supports MSI-mode (i.e. wired
interrupts forwarded to AIA IMSIC as MSIs).

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Anup Patel
2023-06-15 13:03:50 +05:30
committed by Anup Patel
parent 89d01306e3
commit 74967aa208
3 changed files with 580 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
arch/riscv/include/asm/kvm_aia.h
View File

@@ -129,20 +129,9 @@ static inline void kvm_riscv_vcpu_aia_imsic_cleanup(struct kvm_vcpu *vcpu)
{
}
static inline int kvm_riscv_aia_aplic_inject(struct kvm *kvm,
u32 source, bool level)
{
return 0;
}
static inline int kvm_riscv_aia_aplic_init(struct kvm *kvm)
{
return 0;
}
static inline void kvm_riscv_aia_aplic_cleanup(struct kvm *kvm)
{
}
int kvm_riscv_aia_aplic_inject(struct kvm *kvm, u32 source, bool level);
int kvm_riscv_aia_aplic_init(struct kvm *kvm);
void kvm_riscv_aia_aplic_cleanup(struct kvm *kvm);
#ifdef CONFIG_32BIT
void kvm_riscv_vcpu_aia_flush_interrupts(struct kvm_vcpu *vcpu);

1
arch/riscv/kvm/Makefile
View File

@@ -28,3 +28,4 @@ kvm-y += vcpu_timer.o
kvm-$(CONFIG_RISCV_PMU_SBI) += vcpu_pmu.o vcpu_sbi_pmu.o
kvm-y += aia.o
kvm-y += aia_device.o
kvm-y += aia_aplic.o

576
arch/riscv/kvm/aia_aplic.c Normal file
View File

File diff suppressed because it is too large Load Diff