From: Eric Auger <eric.auger@redhat.com>
To: eric.auger.pro@gmail.com, eric.auger@redhat.com,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
kvmarm@lists.cs.columbia.edu, maz@kernel.org, drjones@redhat.com
Cc: alexandru.elisei@arm.com, james.morse@arm.com,
julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com,
shuah@kernel.org, pbonzini@redhat.com
Subject: [PATCH v2 7/9] KVM: arm64: Simplify argument passing to vgic_uaccess_[read|write]
Date: Thu, 14 Jan 2021 11:37:06 +0100 [thread overview]
Message-ID: <20210114103708.26763-8-eric.auger@redhat.com> (raw)
In-Reply-To: <20210114103708.26763-1-eric.auger@redhat.com>
vgic_uaccess() takes a struct vgic_io_device argument, converts it
to a struct kvm_io_device and passes it to the read/write accessor
functions, which convert it back to a struct vgic_io_device.
Avoid the indirection by passing the struct vgic_io_device argument
directly to vgic_uaccess_{read,write}.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
v1 -> v2:
- reworded the commit message as suggested by Alexandru
---
arch/arm64/kvm/vgic/vgic-mmio.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/arch/arm64/kvm/vgic/vgic-mmio.c b/arch/arm64/kvm/vgic/vgic-mmio.c
index b2d73fc0d1ef..48c6067fc5ec 100644
--- a/arch/arm64/kvm/vgic/vgic-mmio.c
+++ b/arch/arm64/kvm/vgic/vgic-mmio.c
@@ -938,10 +938,9 @@ vgic_get_mmio_region(struct kvm_vcpu *vcpu, struct vgic_io_device *iodev,
return region;
}
-static int vgic_uaccess_read(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
+static int vgic_uaccess_read(struct kvm_vcpu *vcpu, struct vgic_io_device *iodev,
gpa_t addr, u32 *val)
{
- struct vgic_io_device *iodev = kvm_to_vgic_iodev(dev);
const struct vgic_register_region *region;
struct kvm_vcpu *r_vcpu;
@@ -960,10 +959,9 @@ static int vgic_uaccess_read(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
return 0;
}
-static int vgic_uaccess_write(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
+static int vgic_uaccess_write(struct kvm_vcpu *vcpu, struct vgic_io_device *iodev,
gpa_t addr, const u32 *val)
{
- struct vgic_io_device *iodev = kvm_to_vgic_iodev(dev);
const struct vgic_register_region *region;
struct kvm_vcpu *r_vcpu;
@@ -986,9 +984,9 @@ int vgic_uaccess(struct kvm_vcpu *vcpu, struct vgic_io_device *dev,
bool is_write, int offset, u32 *val)
{
if (is_write)
- return vgic_uaccess_write(vcpu, &dev->dev, offset, val);
+ return vgic_uaccess_write(vcpu, dev, offset, val);
else
- return vgic_uaccess_read(vcpu, &dev->dev, offset, val);
+ return vgic_uaccess_read(vcpu, dev, offset, val);
}
static int dispatch_mmio_read(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
--
2.21.3
next prev parent reply other threads:[~2021-01-14 10:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-14 10:36 [PATCH v2 0/9] KVM/ARM: Some vgic fixes and init sequence KVM selftests Eric Auger
2021-01-14 10:37 ` [PATCH v2 1/9] KVM: arm64: vgic-v3: Fix some error codes when setting RDIST base Eric Auger
2021-01-14 10:37 ` [PATCH v2 2/9] KVM: arm64: Fix KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION read Eric Auger
2021-01-14 10:37 ` [PATCH v2 3/9] KVM: arm64: vgic-v3: Fix error handling in vgic_v3_set_redist_base() Eric Auger
2021-01-14 10:37 ` [PATCH v2 4/9] KVM: arm/arm64: vgic: Reset base address on kvm_vgic_dist_destroy() Eric Auger
2021-01-14 10:37 ` [PATCH v2 5/9] KVM: arm: move has_run_once after the map_resources Eric Auger
2021-01-14 10:37 ` [PATCH v2 6/9] docs: kvm: devices/arm-vgic-v3: enhance KVM_DEV_ARM_VGIC_CTRL_INIT doc Eric Auger
2021-01-14 10:37 ` Eric Auger [this message]
2021-01-14 10:37 ` [PATCH v2 8/9] KVM: arm64: vgic-v3: Expose GICR_TYPER.Last for userspace Eric Auger
2021-01-14 10:37 ` [PATCH v2 9/9] KVM: selftests: aarch64/vgic-v3 init sequence tests Eric Auger
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