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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: kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu,
	linux-arm-kernel@lists.infradead.org,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	Marc Zyngier <maz@kernel.org>
Subject: [PATCH kvmtool 14/21] hw/serial: Switch to new trap handlers
Date: Thu, 10 Dec 2020 14:29:01 +0000	[thread overview]
Message-ID: <20201210142908.169597-15-andre.przywara@arm.com> (raw)
In-Reply-To: <20201210142908.169597-1-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>
---
 hw/serial.c | 36 +++---------------------------------
 1 file changed, 3 insertions(+), 33 deletions(-)

diff --git a/hw/serial.c b/hw/serial.c
index 2907089c..d840eebc 100644
--- a/hw/serial.c
+++ b/hw/serial.c
@@ -397,31 +397,6 @@ static void serial8250_mmio(struct kvm_cpu *vcpu, u64 addr, u8 *data, u32 len,
 	}
 }
 
-static bool serial8250_ioport_out(struct ioport *ioport, struct kvm_cpu *vcpu,
-				  u16 port, void *data, int size)
-{
-	struct serial8250_device *dev = ioport->priv;
-	u8 value = ioport__read8(data);
-
-	serial8250_mmio(vcpu, port, &value, 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;
-	u8 value = 0;
-
-
-	serial8250_mmio(vcpu, port, &value, 1, false, dev);
-
-	ioport__write8(data, value);
-
-	return true;
-}
-
 #ifdef CONFIG_HAS_LIBFDT
 
 char *fdt_stdout_path = NULL;
@@ -459,11 +434,6 @@ 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)
 {
@@ -474,7 +444,7 @@ 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;
 }
@@ -497,7 +467,7 @@ 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);
 	}
 
@@ -513,7 +483,7 @@ 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);
-- 
2.17.1


  parent reply	other threads:[~2020-12-10 19:05 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-10 14:28 [PATCH kvmtool 00/21] Unify I/O port and MMIO trap handling Andre Przywara
2020-12-10 14:28 ` [PATCH kvmtool 01/21] ioport: Remove ioport__setup_arch() Andre Przywara
2021-02-10 17:44   ` Alexandru Elisei
2021-02-11 17:16     ` Andre Przywara
2021-02-11 17:32       ` Alexandru Elisei
2021-02-17 16:46         ` Andre Przywara
2021-02-22 10:23           ` Andre Przywara
2021-02-22 15:01             ` Alexandru Elisei
2020-12-10 14:28 ` [PATCH kvmtool 02/21] hw/serial: Use device abstraction for FDT generator function Andre Przywara
2021-02-11 12:05   ` Alexandru Elisei
2021-02-11 17:45     ` Andre Przywara
2020-12-10 14:28 ` [PATCH kvmtool 03/21] ioport: Retire .generate_fdt_node functionality Andre Przywara
2021-02-11 14:05   ` Alexandru Elisei
2021-02-17 15:54     ` Andre Przywara
2021-02-17 16:06       ` Alexandru Elisei
2020-12-10 14:28 ` [PATCH kvmtool 04/21] mmio: Extend handling to include ioport emulation Andre Przywara
2021-02-11 16:10   ` Alexandru Elisei
2021-02-17 17:43     ` Andre Przywara
2021-02-22 15:50       ` Alexandru Elisei
2020-12-10 14:28 ` [PATCH kvmtool 05/21] hw/i8042: Clean up data types Andre Przywara
2021-02-11 16:55   ` Alexandru Elisei
2021-02-17 17:46     ` Andre Przywara
2020-12-10 14:28 ` [PATCH kvmtool 06/21] hw/i8042: Refactor trap handler Andre Przywara
2021-02-11 17:23   ` Alexandru Elisei
2021-02-18 10:34     ` Andre Przywara
2021-02-18 11:17       ` Alexandru Elisei
2021-02-18 11:48         ` Andre Przywara
2021-02-22 16:03           ` Alexandru Elisei
2020-12-10 14:28 ` [PATCH kvmtool 07/21] hw/i8042: Switch to new trap handlers Andre Przywara
2021-02-12 10:41   ` Alexandru Elisei
2021-02-18 12:09     ` Andre Przywara
2021-02-22 16:19       ` Alexandru Elisei
2020-12-10 14:28 ` [PATCH kvmtool 08/21] x86/ioport: Refactor " Andre Przywara
2021-02-12 11:14   ` Alexandru Elisei
2020-12-10 14:28 ` [PATCH kvmtool 09/21] x86/ioport: Switch to new " Andre Przywara
2021-02-12 11:27   ` Alexandru Elisei
2021-02-18 14:05     ` Andre Przywara
2020-12-10 14:28 ` [PATCH kvmtool 10/21] hw/rtc: Refactor " Andre Przywara
2021-02-12 11:56   ` Alexandru Elisei
2020-12-10 14:28 ` [PATCH kvmtool 11/21] hw/rtc: Switch to new trap handler Andre Przywara
2021-02-12 12:02   ` Alexandru Elisei
2020-12-10 14:28 ` [PATCH kvmtool 12/21] hw/vesa: Switch trap handling to use MMIO handler Andre Przywara
2021-02-12 17:50   ` Alexandru Elisei
2020-12-10 14:29 ` [PATCH kvmtool 13/21] hw/serial: Refactor trap handler Andre Przywara
2021-02-16 14:22   ` Alexandru Elisei
2021-02-18 14:41     ` Andre Przywara
2021-02-22 17:40       ` Alexandru Elisei
2021-02-24 14:54         ` Andre Przywara
2020-12-10 14:29 ` Andre Przywara [this message]
2021-02-16 14:31   ` [PATCH kvmtool 14/21] hw/serial: Switch to new trap handlers Alexandru Elisei
2020-12-10 14:29 ` [PATCH kvmtool 15/21] vfio: Refactor ioport trap handler Andre Przywara
2021-02-16 14:47   ` Alexandru Elisei
2021-02-18 15:51     ` Andre Przywara
2020-12-10 14:29 ` [PATCH kvmtool 16/21] vfio: Switch to new ioport trap handlers Andre Przywara
2021-02-16 14:52   ` Alexandru Elisei
2020-12-10 14:29 ` [PATCH kvmtool 17/21] virtio: Switch trap handling to use MMIO handler Andre Przywara
2021-02-16 17:03   ` Alexandru Elisei
2021-02-18 16:13     ` Andre Przywara
2020-12-10 14:29 ` [PATCH kvmtool 18/21] pci: " Andre Przywara
2021-02-17 15:14   ` Alexandru Elisei
2020-12-10 14:29 ` [PATCH kvmtool 19/21] Remove ioport specific routines Andre Przywara
2021-02-17 15:49   ` Alexandru Elisei
2021-02-17 16:11     ` Alexandru Elisei
2021-02-18 16:34       ` Andre Przywara
2020-12-10 14:29 ` [PATCH kvmtool 20/21] hw/serial: ARM/arm64: Use MMIO at higher addresses Andre Przywara
2021-02-17 16:48   ` Alexandru Elisei
2021-02-18 12:18     ` Alexandru Elisei
2021-02-18 16:38       ` Andre Przywara
2020-12-10 14:29 ` [PATCH kvmtool 21/21] hw/rtc: " Andre Przywara
2021-02-18 13:33   ` Alexandru Elisei
2021-02-18 16:41     ` Andre Przywara
2021-02-10 17:44 ` [PATCH kvmtool 00/21] Unify I/O port and MMIO trap handling Alexandru Elisei

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