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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 12/21] hw/vesa: Switch trap handling to use MMIO handler
Date: Thu, 10 Dec 2020 14:28:59 +0000	[thread overview]
Message-ID: <20201210142908.169597-13-andre.przywara@arm.com> (raw)
In-Reply-To: <20201210142908.169597-1-andre.przywara@arm.com>

To be able to use the VESA device with the new generic I/O trap handler,
we need to use the different MMIO handler callback routine.

Replace the existing dummy in and out handlers with a joint dummy
MMIO handler, and register this using the new registration function.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
 hw/vesa.c | 19 +++++--------------
 1 file changed, 5 insertions(+), 14 deletions(-)

diff --git a/hw/vesa.c b/hw/vesa.c
index 8659a002..7f82cdb4 100644
--- a/hw/vesa.c
+++ b/hw/vesa.c
@@ -43,21 +43,11 @@ static struct framebuffer vesafb = {
 	.mem_size	= VESA_MEM_SIZE,
 };
 
-static bool vesa_pci_io_in(struct ioport *ioport, struct kvm_cpu *vcpu, u16 port, void *data, int size)
+static void vesa_pci_io(struct kvm_cpu *vcpu, u64 addr, u8 *data, u32 len,
+		        u8 is_write, void *ptr)
 {
-	return true;
 }
 
-static bool vesa_pci_io_out(struct ioport *ioport, struct kvm_cpu *vcpu, u16 port, void *data, int size)
-{
-	return true;
-}
-
-static struct ioport_operations vesa_io_ops = {
-	.io_in			= vesa_pci_io_in,
-	.io_out			= vesa_pci_io_out,
-};
-
 static int vesa__bar_activate(struct kvm *kvm, struct pci_device_header *pci_hdr,
 			      int bar_num, void *data)
 {
@@ -82,7 +72,8 @@ struct framebuffer *vesa__init(struct kvm *kvm)
 	BUILD_BUG_ON(VESA_MEM_SIZE < VESA_BPP/8 * VESA_WIDTH * VESA_HEIGHT);
 
 	vesa_base_addr = pci_get_io_port_block(PCI_IO_SIZE);
-	r = ioport__register(kvm, vesa_base_addr, &vesa_io_ops, PCI_IO_SIZE, NULL);
+	r = kvm__register_pio(kvm, vesa_base_addr, PCI_IO_SIZE, vesa_pci_io,
+			      NULL);
 	if (r < 0)
 		goto out_error;
 
@@ -116,7 +107,7 @@ unmap_dev:
 unregister_device:
 	device__unregister(&vesa_device);
 unregister_ioport:
-	ioport__unregister(kvm, vesa_base_addr);
+	kvm__deregister_pio(kvm, vesa_base_addr);
 out_error:
 	return ERR_PTR(r);
 }
-- 
2.17.1


  parent reply	other threads:[~2020-12-10 19:08 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 ` Andre Przywara [this message]
2021-02-12 17:50   ` [PATCH kvmtool 12/21] hw/vesa: Switch trap handling to use MMIO handler 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 ` [PATCH kvmtool 14/21] hw/serial: Switch to new trap handlers Andre Przywara
2021-02-16 14:31   ` 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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