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[v3,04/10] RISC-V: KVM: Set kvm_riscv_aia_nr_hgei to zero

Message ID 20230615073353.85435-5-apatel@ventanamicro.com (mailing list archive)
State Handled Elsewhere
Headers show
Series RISC-V KVM in-kernel AIA irqchip | expand

Checks

Context Check Description
conchuod/tree_selection fail Failed to apply to next/pending-fixes, riscv/for-next or riscv/master

Commit Message

Anup Patel June 15, 2023, 7:33 a.m. UTC 
We hard-code the kvm_riscv_aia_nr_hgei to zero until IMSIC HW
guest file support is added in KVM RISC-V.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
---
 arch/riscv/kvm/aia.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)
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Patch

diff --git a/arch/riscv/kvm/aia.c b/arch/riscv/kvm/aia.c
index c78c06d99e39..3f97575707eb 100644
--- a/arch/riscv/kvm/aia.c
+++ b/arch/riscv/kvm/aia.c
@@ -408,7 +408,7 @@  int kvm_riscv_aia_alloc_hgei(int cpu, struct kvm_vcpu *owner,
 
 	raw_spin_unlock_irqrestore(&hgctrl->lock, flags);
 
-	/* TODO: To be updated later by AIA in-kernel irqchip support */
+	/* TODO: To be updated later by AIA IMSIC HW guest file support */
 	if (hgei_va)
 		*hgei_va = NULL;
 	if (hgei_pa)
@@ -610,6 +610,14 @@  int kvm_riscv_aia_init(void)
 	if (kvm_riscv_aia_nr_hgei)
 		kvm_riscv_aia_nr_hgei--;
 
+	/*
+	 * Number of usable HGEI lines should be minimum of per-HART
+	 * IMSIC guest files and number of bits in HGEIE
+	 *
+	 * TODO: To be updated later by AIA IMSIC HW guest file support
+	 */
+	kvm_riscv_aia_nr_hgei = 0;
+
 	/* Initialize guest external interrupt line management */
 	rc = aia_hgei_init();
 	if (rc)