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RISC-V: KVM: Use bitmap for irqs_pending and irqs_pending_mask

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To support 64 VCPU local interrupts on RV32 host, we should use
bitmap for irqs_pending and irqs_pending_mask in struct kvm_vcpu_arch.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Anup Patel
2023-04-04 11:55:55 +05:30
committed by Anup Patel
parent 78f94c082a
commit 6b1e8ba4ba
2 changed files with 38 additions and 22 deletions
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7
arch/riscv/include/asm/kvm_host.h
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@@ -204,8 +204,9 @@ struct kvm_vcpu_arch {
* in irqs_pending. Our approach is modeled around multiple producer
* and single consumer problem where the consumer is the VCPU itself.
*/
unsigned long irqs_pending;
unsigned long irqs_pending_mask;
#define KVM_RISCV_VCPU_NR_IRQS 64
DECLARE_BITMAP(irqs_pending, KVM_RISCV_VCPU_NR_IRQS);
DECLARE_BITMAP(irqs_pending_mask, KVM_RISCV_VCPU_NR_IRQS);
/* VCPU Timer */
struct kvm_vcpu_timer timer;
@@ -334,7 +335,7 @@ int kvm_riscv_vcpu_set_interrupt(struct kvm_vcpu *vcpu, unsigned int irq);
int kvm_riscv_vcpu_unset_interrupt(struct kvm_vcpu *vcpu, unsigned int irq);
void kvm_riscv_vcpu_flush_interrupts(struct kvm_vcpu *vcpu);
void kvm_riscv_vcpu_sync_interrupts(struct kvm_vcpu *vcpu);
bool kvm_riscv_vcpu_has_interrupts(struct kvm_vcpu *vcpu, unsigned long mask);
bool kvm_riscv_vcpu_has_interrupts(struct kvm_vcpu *vcpu, u64 mask);
void kvm_riscv_vcpu_power_off(struct kvm_vcpu *vcpu);
void kvm_riscv_vcpu_power_on(struct kvm_vcpu *vcpu);