From: Anup Patel <apatel@ventanamicro.com>
To: Paolo Bonzini <pbonzini@redhat.com>, Atish Patra <atishp@atishpatra.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Andrew Jones <ajones@ventanamicro.com>,
kvm@vger.kernel.org, kvm-riscv@lists.infradead.org,
linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
Anup Patel <apatel@ventanamicro.com>,
Atish Patra <atishp@rivosinc.com>
Subject: [PATCH v2 04/10] RISC-V: KVM: Set kvm_riscv_aia_nr_hgei to zero
Date: Mon, 12 Jun 2023 11:09:26 +0530 [thread overview]
Message-ID: <20230612053932.58604-5-apatel@ventanamicro.com> (raw)
In-Reply-To: <20230612053932.58604-1-apatel@ventanamicro.com>
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(-)
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)
--
2.34.1
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next prev parent reply other threads:[~2023-06-12 5:40 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-12 5:39 [PATCH v2 00/10] RISC-V KVM in-kernel AIA irqchip Anup Patel
2023-06-12 5:39 ` [PATCH v2 01/10] RISC-V: KVM: Implement guest external interrupt line management Anup Patel
2023-06-12 5:39 ` [PATCH v2 02/10] RISC-V: KVM: Add IMSIC related defines Anup Patel
2023-06-12 5:39 ` [PATCH v2 03/10] RISC-V: KVM: Add APLIC " Anup Patel
2023-06-12 5:39 ` Anup Patel [this message]
2023-06-12 5:39 ` [PATCH v2 05/10] RISC-V: KVM: Skeletal in-kernel AIA irqchip support Anup Patel
2023-06-12 5:39 ` [PATCH v2 06/10] RISC-V: KVM: Implement device interface for AIA irqchip Anup Patel
2023-06-12 21:30 ` Atish Patra
2023-06-15 5:33 ` Yong-Xuan Wang
2023-06-15 6:25 ` Anup Patel
2023-06-12 5:39 ` [PATCH v2 07/10] RISC-V: KVM: Add in-kernel emulation of AIA APLIC Anup Patel
2023-06-15 5:30 ` Yong-Xuan Wang
2023-06-15 6:32 ` Anup Patel
2023-06-12 5:39 ` [PATCH v2 08/10] RISC-V: KVM: Expose APLIC registers as attributes of AIA irqchip Anup Patel
2023-06-12 5:39 ` [PATCH v2 09/10] RISC-V: KVM: Add in-kernel virtualization of AIA IMSIC Anup Patel
2023-06-12 5:39 ` [PATCH v2 10/10] RISC-V: KVM: Expose IMSIC registers as attributes of AIA irqchip Anup Patel
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