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From: Andre Przywara <andre.przywara@arm.com>
To: Will Deacon <will@kernel.org>,
	Julien Thierry <julien.thierry.kdev@gmail.com>
Cc: Marc Zyngier <maz@kernel.org>,
	Sami Mujawar <sami.mujawar@arm.com>,
	kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org
Subject: [PATCH kvmtool v3 14/22] hw/serial: Switch to new trap handlers
Date: Mon, 15 Mar 2021 15:33:42 +0000	[thread overview]
Message-ID: <20210315153350.19988-15-andre.przywara@arm.com> (raw)
In-Reply-To: <20210315153350.19988-1-andre.przywara@arm.com>

Now that the serial device has a trap handler adhering to the MMIO fault
handler prototype, let's switch over to the joint registration routine.

This allows us to get rid of the ioport shim routines.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
---
 hw/serial.c | 31 +++----------------------------
 1 file changed, 3 insertions(+), 28 deletions(-)

diff --git a/hw/serial.c b/hw/serial.c
index 3f797452..16af493b 100644
--- a/hw/serial.c
+++ b/hw/serial.c
@@ -393,26 +393,6 @@ static void serial8250_mmio(struct kvm_cpu *vcpu, u64 addr, u8 *data, u32 len,
 		serial8250_in(dev, vcpu, addr - dev->iobase, data);
 }
 
-static bool serial8250_ioport_out(struct ioport *ioport, struct kvm_cpu *vcpu,
-				  u16 port, void *data, int size)
-{
-	struct serial8250_device *dev = ioport->priv;
-
-	serial8250_mmio(vcpu, port, data, 1, true, dev);
-
-	return true;
-}
-
-static bool serial8250_ioport_in(struct ioport *ioport, struct kvm_cpu *vcpu,
-				 u16 port, void *data, int size)
-{
-	struct serial8250_device *dev = ioport->priv;
-
-	serial8250_mmio(vcpu, port, data, 1, false, dev);
-
-	return true;
-}
-
 #ifdef CONFIG_HAS_LIBFDT
 
 char *fdt_stdout_path = NULL;
@@ -450,11 +430,6 @@ void serial8250_generate_fdt_node(void *fdt, struct device_header *dev_hdr,
 }
 #endif
 
-static struct ioport_operations serial8250_ops = {
-	.io_in			= serial8250_ioport_in,
-	.io_out			= serial8250_ioport_out,
-};
-
 static int serial8250__device_init(struct kvm *kvm,
 				   struct serial8250_device *dev)
 {
@@ -465,7 +440,7 @@ static int serial8250__device_init(struct kvm *kvm,
 		return r;
 
 	ioport__map_irq(&dev->irq);
-	r = ioport__register(kvm, dev->iobase, &serial8250_ops, 8, dev);
+	r = kvm__register_pio(kvm, dev->iobase, 8, serial8250_mmio, dev);
 
 	return r;
 }
@@ -488,7 +463,7 @@ cleanup:
 	for (j = 0; j <= i; j++) {
 		struct serial8250_device *dev = &devices[j];
 
-		ioport__unregister(kvm, dev->iobase);
+		kvm__deregister_pio(kvm, dev->iobase);
 		device__unregister(&dev->dev_hdr);
 	}
 
@@ -504,7 +479,7 @@ int serial8250__exit(struct kvm *kvm)
 	for (i = 0; i < ARRAY_SIZE(devices); i++) {
 		struct serial8250_device *dev = &devices[i];
 
-		r = ioport__unregister(kvm, dev->iobase);
+		r = kvm__deregister_pio(kvm, dev->iobase);
 		if (r < 0)
 			return r;
 		device__unregister(&dev->dev_hdr);
-- 
2.17.5

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  parent reply	other threads:[~2021-03-15 15:34 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-15 15:33 [PATCH kvmtool v3 00/22] Unify I/O port and MMIO trap handling Andre Przywara
2021-03-15 15:33 ` [PATCH kvmtool v3 01/22] ioport: Remove ioport__setup_arch() Andre Przywara
2021-03-15 15:33 ` [PATCH kvmtool v3 02/22] hw/serial: Use device abstraction for FDT generator function Andre Przywara
2021-03-15 15:33 ` [PATCH kvmtool v3 03/22] ioport: Retire .generate_fdt_node functionality Andre Przywara
2021-03-15 15:33 ` [PATCH kvmtool v3 04/22] mmio: Extend handling to include ioport emulation Andre Przywara
2021-03-15 15:33 ` [PATCH kvmtool v3 05/22] hw/i8042: Clean up data types Andre Przywara
2021-03-15 15:33 ` [PATCH kvmtool v3 06/22] hw/i8042: Refactor trap handler Andre Przywara
2021-03-15 15:33 ` [PATCH kvmtool v3 07/22] hw/i8042: Switch to new trap handlers Andre Przywara
2021-03-15 15:33 ` [PATCH kvmtool v3 08/22] x86/ioport: Refactor " Andre Przywara
2021-03-15 15:33 ` [PATCH kvmtool v3 09/22] x86/ioport: Switch to new " Andre Przywara
2021-03-15 15:33 ` [PATCH kvmtool v3 10/22] hw/rtc: Refactor " Andre Przywara
2021-03-15 15:33 ` [PATCH kvmtool v3 11/22] hw/rtc: Switch to new trap handler Andre Przywara
2021-03-15 15:33 ` [PATCH kvmtool v3 12/22] hw/vesa: Switch trap handling to use MMIO handler Andre Przywara
2021-03-15 15:33 ` [PATCH kvmtool v3 13/22] hw/serial: Refactor trap handler Andre Przywara
2021-03-16 15:40   ` Alexandru Elisei
2021-03-15 15:33 ` Andre Przywara [this message]
2021-03-15 15:33 ` [PATCH kvmtool v3 15/22] vfio: Refactor ioport " Andre Przywara
2021-03-15 15:33 ` [PATCH kvmtool v3 16/22] vfio: Switch to new ioport trap handlers Andre Przywara
2021-03-15 15:33 ` [PATCH kvmtool v3 17/22] virtio: Switch trap handling to use MMIO handler Andre Przywara
2021-03-15 15:33 ` [PATCH kvmtool v3 18/22] pci: " Andre Przywara
2021-03-15 15:33 ` [PATCH kvmtool v3 19/22] Remove ioport specific routines Andre Przywara
2021-03-15 15:33 ` [PATCH kvmtool v3 20/22] arm: Reorganise and document memory map Andre Przywara
2021-03-17 15:17   ` Alexandru Elisei
2021-03-15 15:33 ` [PATCH kvmtool v3 21/22] hw/serial: ARM/arm64: Use MMIO at higher addresses Andre Przywara
2021-03-17 16:17   ` Alexandru Elisei
2021-03-15 15:33 ` [PATCH kvmtool v3 22/22] hw/rtc: " Andre Przywara
2021-03-17 17:44 ` [PATCH kvmtool v3 00/22] Unify I/O port and MMIO trap handling Alexandru Elisei
2021-03-18 10:04 ` Will Deacon

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